Intra-event control strategy for corona ignition systems

The invention provides a system and method for controlling corona discharge and arc formations during a single corona event, i.e. intra-event control. A driver circuit provides energy to the corona igniter and detects any arc formation. In response to each arc formation, the energy provided to the corona igniter is shut off for short time. The driver circuit also obtains information about the arc formations, such as timing of the first arc formation and number of occurrences. A control unit then adjusts the energy provided to the corona igniter after the shut off time and during the same corona event based on the information about the arc formations. For example, the voltage level could be reduced or the shut-off time could be increased to limit arc formations and increase the size of the corona discharge during the same corona event.

Distributed consistent grid of in-memory database caches

A plurality of mid-tier databases form a single, consistent cache grid for data in one or more backend data sources, such as a database system. The mid-tier databases may be standard relational databases. Cache agents at each mid-tier database swap in data from the backend database as needed. Ownership locks maintain consistency in the cache grid. Cache agents prevent database operations that will modify cached data in a mid-tier database unless and until ownership of the cached data can be acquired for the mid-tier database. Cache groups define what backend data may be cached, as well as a general structure in which the backend data is to be cached. Metadata for cache groups is shared to ensure that data is cached in the same form throughout the entire grid. Ownership of cached data can then be tracked through a mapping of cached instances of data to particular mid-tier databases.

CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE

A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled. 1. A corona igniter for emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge , comprising:a central electrode formed of an electrically conductive material for receiving a high radio frequency voltage and emitting the radio frequency electric field;an insulator formed of an electrically insulating material surrounding said central electrode and extending longitudinally along a center axis from an insulator upper end to an insulator nose end;said insulator including an insulator outer surface extending from said insulator upper end to said insulator nose end;said insulator outer surface presenting an insulator outer diameter extending across and perpendicular to said center axis;said insulator including an insulator body region and an insulator nose region;said insulator outer surface including a lower ledge extending outwardly away from said center axis between said insulator body region and said insulator nose region;said lower ledge presenting an increase in said insulator outer diameter;a conductive component surrounding at least a portion of said insulator body region such that said insulator nose region extends ...

CORONA IGNITION DEVICE AND ASSEMBLY METHOD

A reversed-assembled corona igniter including an insulator, central electrode, and metal shell, wherein an outer diameter of the insulator increases adjacent a lower end of the metal shell to achieve an electrical advantage is provided. In addition, the insulator maintains strength because is not placed under tension during or after assembly, or once disposed in an engine. To achieve the increase in insulator outer diameter, the insulator includes a lower shoulder adjacent the shell firing end. An intermediate part, such as braze and/or a metal ring, is disposed between the insulator outer surface and the shell adjacent the shell firing end. To prevent tension in the insulator, the insulator can be supported at only one location between the insulator upper end and the insulator lower end, for example along the intermediate part.

User-Defined Parallelization in Transactional Replication of In-Memory Database

A replication track is a designated group of transactions that are to be replicated at a destination database in a way that, with respect to any other transaction in the replication track, preserves transactional dependency. Further, transactions in a replication track can be replicated at the destination database without regard to transactional dependency of other transactions in another track. This facilitates concurrent parallel replication of transactions of different tracks. Replicating data in this manner is referred to herein as track replication. An application may request execution of transactions and designate different tracks for transactions. 1. A method comprising steps of:a first database server executing a first plurality of transactions, said first plurality of transactions including one or more database changes to a database managed by said first database server, wherein said first plurality of transactions are executed by said first database server in response to requests received by said database server from a set of application clients;said first database server assigning each transaction of said first plurality of transactions to a track of a plurality of tracks;while said first database server is executing said first plurality of transactions, each track of said plurality of tracks is associated with only one physical track of a plurality of physical tracks;for the respective transactions assigned each track of said plurality of tracks, said first database server causing the respective transactions to be replicated at a destination database server via only one physical track of said plurality of physical tracks; replicated at said destination database server in a way that accounts for transactional dependency of any transaction replicated via said each physical track;', 'replicated at said destination database server in a way that ignores transactional dependency of any transaction replicated via any other physical track of said plurality of ...

Identity Management System And Method Including Architecture For The Same

A computer implemented method for an identity management system, having: on a computer device having one or more processors and a memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for: providing a core gateway system; and providing a data processing engine. Also, a computer system and non-transitory computer-readable storage medium adapted for the same. 1. A computer implemented method for an identity management system , comprising: [ utilizing a content management system comprising a Framework and a Module;', 'adding a Dimension at the Framework level of the content management system, wherein the Dimension is pervasive across all Modules of the content management system; and', 'displaying content based on the Dimension of each Module; and, 'providing a core gateway system comprising, configuring an inbound or outbound feed;', 'executing the inbound feed; and', 'executing the outbound feed., 'providing a data processing engine comprising], 'on a computer device having one or more processors and a memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for2. The computer implemented method of claim 1 , the one or more programs further including instructions for:receiving information about a provisional subscriber from a partner; receiving information about the provisional subscriber from a customer; andauthenticating the provisional subscriber as a valid customer based on a comparison of the information from the partner and the customer utilizing the core gateway system and the data processing engine system.3. The computer implemented method of claim 1 , the one or more programs further including instructions for:processing information from multiple web sites served up from a web application,binding multiple secure socket layer (SSL) certificates to a single site supported by the web application,hosting the SSL ...

DISTRIBUTED CONSISTENT GRID OF IN-MEMORY DATABASE CACHES

A plurality of mid-tier databases form a single, consistent cache grid for data in one or more backend data sources, such as a database system. The mid-tier databases may be standard relational databases. Cache agents at each mid-tier database swap in data from the backend database as needed. Ownership locks maintain consistency in the cache grid. Cache agents prevent database operations that will modify cached data in a mid-tier database unless and until ownership of the cached data can be acquired for the mid-tier database. Cache groups define what backend data may be cached, as well as a general structure in which the backend data is to be cached. Metadata for cache groups is shared to ensure that data is cached in the same form throughout the entire grid. Ownership of cached data can then be tracked through a mapping of cached instances of data to particular mid-tier databases. 1. A method performed by one or more computing devices , comprising:storing one or more backend data sources in at least one persistent storage devices;providing access to the one or more backend data sources via a backend server executing at a first set of the one or more computing devices;storing a plurality of mid-tier databases at a second set of the one or more computing devices;maintaining, in the plurality of mid-tier databases, a caching grid, said caching grid comprising at least a plurality of shared cache instances of data from the one or more backend data sources, wherein the plurality of shared cache instances are stored in the plurality of mid-tier databases;ensuring that for any given data element of the one or more backend data sources for which the caching grid maintains a shared cache instance, the plurality of mid-tier databases store, at any given time, no more than one version of the shared cache instance.2. The method of claim 1 , further comprising maintaining the caching grid in an online state even after the failure of one or more of the plurality of mid-tier ...

Identity Alert Management System And Method

A computer implemented method for an identity alert management system for interaction between a customer and a resolution specialist, having: on a computer device having one or more processors and a memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for: identifying personally identifiable information against elements of a customer's identity; automatically sending a communication to the customer within a specified time period; authenticating the customer through a secure identity management dashboard; permitting the customer to review a source of an identity alert and details associated with the alert; prompting the customer to mark the alert as a threat or not a threat; sending a record of the threat to an approved records system if the customer marks the alert as not a threat; and creating a case if the customer marks the alert as a threat. 1. A computer implemented method for an identity alert management system for interaction between a customer and a resolution specialist for an identity management system , comprising: ["identifying personally identifiable information against elements of a customer's identity;", 'automatically sending a communication to the customer within a specified time period;', 'authenticating the customer through a secure identity management dashboard;', 'permitting the customer to review a source of an identity alert and details associated with the alert;', 'prompting the customer to mark the alert as a threat or not a threat;', 'sending a record of the threat to an approved records system if the customer marks the alert as not a threat; and', 'creating a case if the customer marks the alert as a threat., 'on a computer device having one or more processors and a memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for2. The computer implemented method of claim 1 , wherein the specified ...

HYBRID STAND ALONE MATTRESS SYSTEM

A mattress system includes a subframe having fold joints. The subframe includes a foot section, a transition section, a body section, and a head section that are separated by the fold joints. The subframe includes an upper portion and a lower portion. The mattress system further includes a first strap and a second strap. The first strap extends through the foot section from the upper portion of the subframe to a lower portion of the subframe. The second strap extends through the foot section from the lower portion of the subframe to an upper portion of the subframe such that the first and second straps form an X. 1. A mattress system , comprising:a subframe having fold joints, the subframe including a foot section, a transition section, a body section, and a head section that are separated by the fold joints;a first strap that extends from the foot section to the body section; anda second strap that is secured to the foot section and is disposed transverse to the first strap.2. The mattress system of claim 1 , wherein the first and second straps have different lengths.3. The mattress system of claim 2 , wherein the first strap is longer than the second strap.4. The mattress system of claim 1 , wherein the foot section includes a border wire to which a first end of the first strap connects.5. The mattress system of claim 4 , wherein a second end of the first strap connects to a cross wire in the body section.6. The mattress system of claim 5 , wherein the first end of the first strap is positioned higher than the second end of the first strap such that the first strap extends in a first direction at an inclined angle.7. The mattress system of claim 6 , wherein the second strap extends in a second direction at an inclined angle claim 6 , the first and second directions being different.8. The mattress system of claim 1 , wherein the second strap has a first end that connects to a cross wire in the foot section.9. The mattress system of claim 8 , wherein the second ...

INTRA-EVEN CONTROL STRATEGY FOR CORONA IGNITION SYSTEMS

The invention provides a system and method for controlling corona discharge and arc formations during a single corona event, i.e. intra-event control. A driver circuit provides energy to the corona igniter and detects any arc formation. In response to each arc formation, the energy provided to the corona igniter is shut off for short time. The driver circuit also obtains information about the arc formations, such as timing of the first arc formation and number of occurrences. A control unit then adjusts the energy provided to the corona igniter after the shut off time and during the same corona event based on the information about the arc formations. For example, the voltage level could be reduced or the shut-off time could be increased to limit arc formations and increase the size of the corona discharge during the same corona event. 1. A corona ignition system , comprising:a corona igniter receiving energy and emitting an electric field during a corona event, wherein the energy is at a voltage level and a current level, and the corona event includes a single continuous duration of time extending from a start time to a stop time;a driver circuit providing the energy to the corona igniter during the corona event;the driver circuit providing no energy to the corona igniter for a duration of time immediately after any occurrence of an arc formation;the driver circuit obtaining information about the at least one occurrence of the arc formation, the information including at least one of: timing of at least one occurrence of the arc formation relative to the start time of the corona event, duration between two consecutive occurrences of the arc formations, and number of occurrences of the arc formation over a period of time during the corona event;a control unit receiving the information about the arc formation from the driver circuit and adjusting at least one of the voltage level and the current level based on the information about the arc formation; andthe driver ...

Corona ignition device with improved electrical performance

A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled.

Variable Radius Print Head End Effector

A surface treatment assembly for treating a contoured surface includes an adjustable base having at least a first contour shape and a second contour shape. The surface treatment assembly further includes a plurality of applicator heads that are coupled to the adjustable base. Moreover, each applicator head is configured to apply a surface treatment to the contoured surface. Furthermore, the surface treatment assembly includes an actuator which is operatively coupled to the adjustable base and the actuator is configured to manipulate the adjustable base between the first contour shape and the second contour shape.

INTRA-EVENT CONTROL STRATEGY FOR CORONA IGNITION SYSTEMS

The invention provides a system and method for controlling corona discharge and arc formations during a single corona event, i.e. intra-event control. A driver circuit provides energy to the corona igniter and detects any arc formation. In response to each arc formation, the energy provided to the corona igniter is shut off for short time. The driver circuit also obtains information about the arc formations, such as timing of the first arc formation and number of occurrences. A control unit then adjusts the energy provided to the corona igniter after the shut off time and during the same corona event based on the information about the arc formations. For example, the voltage level could be reduced or the shut-off time could be increased to limit arc formations and increase the size of the corona discharge during the same corona event. 1. A corona ignition system , comprising:a corona igniter receiving energy and emitting an electric field during a corona event, wherein the energy is at a voltage level and a current level, and the corona event includes a single continuous duration of time extending from a start time to a stop time;a driver circuit providing the energy to the corona igniter during the corona event;the driver circuit providing no energy to the corona igniter for a duration of time immediately after any occurrence of an arc formation;the driver circuit obtaining information about the at least one occurrence of the arc formation, the information including at least one of: timing of at least one occurrence of the arc formation relative to the start time of the corona event, duration between two consecutive occurrences of the arc formations, and number of occurrences of the arc formation over a period of time during the corona event;a control unit receiving the information about the arc formation from the driver circuit and adjusting at least one of the voltage level and the current level based on the information about the arc formation; andthe driver ...

Actuated Print Head Assembly for a Contoured Surface

An applicator assembly for treating a contoured surface including an attachment frame configured to secure and position an applicator head. In some embodiments, the applicator head is configured to apply a surface treatment to the contoured surface. The applicator assembly further includes, at least one sensor operatively coupled to the attachment frame and configured to scan the contoured surface and produce a contoured data set. Additionally, the applicator assembly includes an applicator actuator operatively coupled to the attachment frame and configured to manipulate the attachment frame such that the applicator assembly maintains an orientation of the applicator assembly relative to the contoured surface. 1. An applicator assembly for treating a contoured surface , the applicator assembly comprising:an attachment frame configured to secure and position an applicator head, the applicator head being configured to apply a surface treatment to the contoured surface;at least one sensor operatively coupled to the attachment frame and configured to scan the contoured surface and produce a contoured data set; andan applicator actuator operatively coupled to the attachment frame and configured to manipulate the attachment frame such that the applicator assembly maintains an orientation of the applicator assembly relative to the contoured surface.2. The applicator assembly of claim 1 , further comprising a controller communicably coupled to the applicator actuator and the at least one sensor claim 1 , wherein the controller is configured to operate the applicator actuator to manipulate the attachment frame based on the contoured data set.3. The applicator assembly of claim 2 , wherein the at least one sensor comprises a surface scanning laser configured to scan the contoured surface to produce the contoured data set claim 2 , and the contoured data set includes a contoured surface profile and a distance between the applicator assembly and the contoured surface.4. The ...

INTER-EVENT CONTROL STRATEGY FOR CORONA IGNITION SYSTEMS

The invention provides a system and method for controlling corona discharge. A driver circuit provides energy to the corona igniter and detects any arc formation. Optionally, in response to each arc formation, the energy provided to the corona igniter is shut off for a short time to dissipate the arc. Once the arc dissipates, the energy is applied again to restore the corona discharge. The driver circuit obtains information relating to the corona discharge, such as timing and number of arc formations. A control unit adjusts the energy provided to the corona igniter, shut-off time, or the duration of the corona event based on the information. The adjusted energy levels and duration are applied during subsequent corona events. For example, the voltage level could be reduced or the shutoff time could be increased to limit arc formations and increase the size of the corona discharge during the subsequent corona events. 1. A corona ignition system , comprising:a corona igniter receiving energy and providing corona discharge during a plurality of corona events, wherein each corona event comprises a duration of time extending continuously from a start time to a stop time;a driver circuit providing the energy to the corona igniter during the corona events, the energy including at least one of a predetermined voltage level and a predetermined current level;the driver circuit obtaining information relating to the corona discharge of at least one of the corona events, the information including at least one of: timing of any occurrence of an arc formation relative to the start time of the corona event, duration between two consecutive occurrences of the arc formations, number of occurrences of the arc formations over a period of time during the corona event, timing of an occurrence of the arc formation relative to the stop time of the corona event, total number of occurrences of the arc formations during the corona event, and the voltage level provided to the corona igniter at ...

Harmonic distortion macro model correction using a memory table

A method of harmonic distortion (HD) macro-model error correction uses a HD simulation macro-model for an electronic device and memory table storing an operating condition/variable that affects HD and HD coefficient value(s). A processor runs the macro-model using information in the memory table for generating HD simulation values. The memory table is initially filled with a first condition/variable and initial HD coefficient. The processor runs the simulation macro-model for generating an initial HD simulation value. An initial Datasheet to initial HD simulation error (D-S error) is determined. Provided the magnitude of D-S error is above a predetermined error bound (PEB), an updated HD coefficient is used for repeating the filling, generating an updated HD simulation value and determining D-S error to obtain a corrected HD coefficient(s) which reduces the D-S error<PEB. The corrected HD coefficient(s) is stored in the memory table to update the simulation macro-model.

Harmonic distortion vs. output loading macro-modeling

A method of harmonic distortion (HD) versus load modeling. A macro-model circuit is provided including a sub-circuit block(s) modeling an electronic device and an HD generation block in a signal path of the macro-model circuit that includes an HD equation relating a load current parameter responsive to an input voltage (Vin(t)). Responsive to receiving Vin(t) at an input of the macro-model circuit under a set of operating conditions including the output of the macro-model circuit loaded with an output impedance (Z), a simulated load current (iL) is generated. iL or another load current from iL (iL′) is fed back to the HD generation block to provide its load current parameter. The load current parameter is inputted into the HD equation for the HD equation to become a substituted equation. At least one simulated HD value under loading by Z for the electronic device is generated from the substituted equation.

Adjustable Cantilevered Paint Actuation System

A surface treatment assembly for treating a contoured surface includes a surface treatment array formed from a plurality of base structures, each base structure operably coupled to a first phalange structure and a first phalange structure first end. A second phalange structure operatively coupled to each first phalange structure and a phalange joint disposed between each first phalange structure and each second phalange, thereby forming a finger structure. Moreover, at least one applicator head is coupled to a second phalange structure second end of each finger structure and configured to treat the contoured surface. A base structure actuator and a phalange joint actuator operatively coupled to and configured to manipulate the first phalange structure and the second phalange of each finger structure to adjust the surface treatment array relative to the contoured surface. 1. A surface treatment assembly for treating a contoured surface , the surface treatment assembly comprising:a surface treatment array formed from a plurality of base structures, each base structure being operably coupled to a first phalange structure at a first phalange structure first end;a second phalange structure operatively coupled to each first phalange structure;a phalange joint disposed between each first phalange structure and each second phalange structure, the phalange joint operably coupled to a first phalange structure second end and a second phalange structure first end, thereby forming a finger structure;at least one applicator head coupled to a second phalange structure second end of each finger structure, each of the at least one applicator head being configured to treat the contoured surface;a base structure actuator operatively coupled to and configured to manipulate the first phalange structure of each finger structure; anda phalange joint actuator operatively coupled to and configured to manipulate the second phalange structure of each finger structure, the base structure ...

INTER-EVENT CONTROL STRATEGY FOR CORONA IGNITION SYSTEMS

The invention provides a system and method for controlling corona discharge. A driver circuit provides energy to the corona igniter and detects any arc formation. Optionally, in response to each arc formation, the energy provided to the corona igniter is shut off for a short time to dissipate the arc. Once the arc dissipates, the energy is applied again to restore the corona discharge. The driver circuit obtains information relating to the corona discharge, such as timing and number of arc formations. A control unit adjusts the energy provided to the corona igniter, shut-off time, or the duration of the corona event based on the information. The adjusted energy levels and duration are applied during subsequent corona events. For example, the voltage level could be reduced or the shutoff time could be increased to limit arc formations and increase the size of the corona discharge during the subsequent corona events. 1. A corona ignition system , comprising:a corona igniter receiving energy and providing corona discharge during a plurality of corona events, wherein each corona event comprises a duration of time extending continuously from a start time to a stop time;a driver circuit providing the energy to the corona igniter during the corona events, the energy including at least one of a predetermined voltage level and a predetermined current level;the driver circuit obtaining information relating to the corona discharge of at least one of the corona events, the information including at least one of: timing of any occurrence of an arc formation relative to the start time of the corona event, duration between two consecutive occurrences of the arc formations, number of occurrences of the are formations over a period of time during the corona event, timing of an occurrence of the arc formation relative to the stop time of the corona event, total number of occurrences of the arc formations during the corona event, and the voltage level provided to the corona igniter at ...

CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE

A corona igniter () comprises a central electrode () surrounded by an insulator (), which is surrounded by a conductive component. The conductive component includes a shell () and an intermediate part () both formed of an electrically conductive material. An outer surface () of the insulator () presents a lower ledge (), and the intermediate part () is typically attached to the insulator () above the lower ledge () prior to inserting the insulator () into the shell (). The conductive inner diameter (D) is less than an insulator outer diameter (D) directly below the lower ledge () such the insulator thickness (t) increases toward the electrode firing end (). The corona igniter () can be reversed-assembled by inserting an upper end () of the insulator into a firing end () of the shell. 1. A corona igniter for emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge , comprising:a central electrode formed of an electrically conductive material for receiving a high radio frequency voltage and emitting the radio frequency electric field;an insulator formed of an electrically insulating material surrounding said central electrode and extending longitudinally along a center axis from an insulator upper end to an insulator nose end;said insulator including an insulator outer surface extending from said insulator upper end to said insulator nose end;said insulator outer surface presenting an insulator outer diameter extending across and perpendicular to said center axis;said insulator including an insulator body region and an insulator nose region;said insulator outer surface including a lower ledge extending outwardly away from said center axis between said insulator body region and said insulator nose region;said lower ledge presenting an increase in said insulator outer diameter;a conductive component surrounding at least a portion of said insulator body region such that said insulator nose region extends outwardly of said ...

CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE

A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled. 1. A corona igniter for emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge , comprising:a central electrode formed of an electrically conductive material for receiving a high radio frequency voltage and emitting the radio frequency electric field;an insulator formed of an electrically insulating material surrounding said central electrode and extending longitudinally along a center axis from an insulator upper end to an insulator nose end;said insulator including an insulator outer surface extending from said insulator upper end to said insulator nose end;said insulator outer surface presenting an insulator outer diameter extending across and perpendicular to said center axis;said insulator including an insulator body region and an insulator nose region;said insulator outer surface including a lower ledge extending outwardly away from said center axis between said insulator body region and said insulator nose region;said lower ledge presenting an increase in said insulator outer diameter;a conductive component surrounding at least a portion of said insulator body region such that said insulator nose region extends ...

Igniter assembly with improved insulation and method of insulating the igniter assembly

An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber.

INTER-EVEN CONTROL STRATEGY FOR CORONA IGNITION SYSTEMS

The invention provides a system and method for controlling corona discharge. A driver circuit provides energy to the corona igniter and detects any arc formation. Optionally, in response to each arc formation, the energy provided to the corona igniter is shut off for a short time to dissipate the arc. Once the arc dissipates, the energy is applied again to restore the corona discharge. The driver circuit obtains information relating to the corona discharge, such as timing and number of arc formations. A control unit adjusts the energy provided to the corona igniter, shut-off time, or the duration of the corona event based on the information. The adjusted energy levels and duration are applied during subsequent corona events. For example, the voltage level could be reduced or the shutoff time could be increased to limit arc formations and increase the size of the corona discharge during the subsequent corona events. 1. A corona ignition system , comprising:a corona igniter receiving energy and providing corona discharge during a plurality of corona events, wherein each corona event comprises a predetermined duration of time extending continuously from a start time to a stop time;a driver circuit providing the energy to the corona igniter during the corona events;the driver circuit obtaining information relating to the corona discharge of at least one of the corona events, the information including at least one of: timing of any occurrence of an arc formation relative to the start time of the corona event, duration between two consecutive occurrences of the arc formations, number of occurrences of the arc formations over a period of time during the corona event, timing of an occurrence of the arc formation relative to the stop time of the corona event, total number of occurrences of the arc formations during the corona event, and the voltage level provided to the corona igniter at the stop time of the corona event;a control unit receiving the information relating to ...

Igniter assembly with improved insulation and method of insulating the igniter assembly

An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber.

ADJUSTABLE CANTILEVERED PAINT ACTUATION SYSTEM

A surface treatment assembly for treating a contoured surface includes a surface treatment array formed from a plurality of base structures, each base structure operably coupled to a first phalange structure and a first phalange structure first end. A second phalange structure operatively coupled to each first phalange structure and a phalange joint disposed between each first phalange structure and each second phalange, thereby forming a finger structure. Moreover, at least one applicator head is coupled to a second phalange structure second end of each finger structure and configured to treat the contoured surface. A base structure actuator and a phalange joint actuator operatively coupled to and configured to manipulate the first phalange structure and the second phalange of each finger structure to adjust the surface treatment array relative to the contoured surface. 1. A method of treating a contoured surface with a surface treatment assembly , the method comprising:forming a surface treatment array from a plurality of base structures;coupling a finger structure to each base structure of the plurality of base structures, the finger structure including a first phalange structure, a second phalange structure and a phalange joint disposed therebetween;coupling at least one applicator head to the second phalange structure of each finger structure, each of the at least one applicator head configured to apply a surface treatment layer to the contoured surface; andcoupling a base structure actuator to each base structure and a phalange joint actuator to each phalange joint, and manipulating each of the base structure actuators and each of the phalange joint actuators such that the surface treatment array is adjusted relative to the contoured surface.2. The method of claim 1 , wherein forming the surface treatment array includes arranging the plurality of base structures in a circular array configured to surround and treat the contoured surface along a tubular ...

Pressure pickup

Digital audio broadcasting system

A digital audio broadcasting system that is capable of providing a large number of high quality stereophonic channels to mobile receivers in an environment with severe multipath delay and fading. Optimum combination of frequency and time diversity to guarantee robust performance in the mobile channel, with its multipath delay and frequency-selective fading effects. The system is based upon a dynamic single channel per carrier assignment of each stereo channel to many carriers. Intersymbol interference degradations caused by multipath delay are mitigated via an adaptive equalizer in the receiver. This dynamic single channel per carrier system preserves the simplicity inherent in the single channel per carrier assignment while it incorporates the ability to address frequency-selective fading by providing substantial frequency diversity. The frequency diversity is achieved via a slow frequency hop implementation in which the assignment of a number of stereo channels to an equal number of carrier frequencies is changed periodically. The system offers the simplicity of single channel per carrier assignment of stereo channels while it achieves the powerful performance benefits of frequency diversity and adaptive equalization for the mobile channel.

Inter-event control strategy for corona ignition systems

Light storage device

A storage device for storing Christmas lights assembled from a vertical core section, a pair of horizontal end sections, and a sheath. The device is constructed from corrugated cardboard. Each opposing end of each of the four sides of the core section includes both a foldable flap and a slot, which is formed adjacent the fold line of the flap. The horizontal end sections, located at either opposing core section end, each include a centrally disposed opening defined by four inward sides. Each inward side has a width substantially equal to the core section sides and includes an inwardly extending tab. When the core section is inserted into the centrally disposed opening, the tabs are received by the slots to secure the core section and end section together. Each end section also includes four locking regions, each locking region having a first folding element and a second folding element. The first folding element folds toward the far surface of the end section such that it overlays the core section flap outwardly folded against the end section. The second folding element then folds into the hollow center of the core section. The core section and end section are thereby further secured together. The sheath encloses and protects articles wound around the assembled core section and end sections during storage.

Body support for bed or seat

BODY SUPPORT FOR BED OF SEAT Abstract A body support for a bed or a seat having a plurality of resilient support members or springs that are movable between a retracted or collapsed, inoper-ative position and an extended, operative position. The springs are contained in a case of flexible sheet material so that when the springs are collapsed, the case is collapsed or depressed into a relatively thin layer for storage or other purposes; and when the springs are extended the case will be distended by the springs to provide a resilient support such as a mattress, "box-spring" or a combination thereof for use in a bed or seat. Actuating means is provided for actuating one or more of the springs between the retracted and extended positions thereof, and connect-ing means interconnects all of the springs to drive them from the retracted to extended positions. The body support is especially suited to sofa beds or other foldable bed or seat structures because, in this application, the folding parts of the latter structures are coordinated with the body such that when the bed is folded into the storage position, the springs will' simultaneously be moved to their collapsed position contracting the surrounding case into a relatively thin layer, thus enabling the body support to be stored within the confines of the associated structure. Conversely, when the sofa bed is unfolded to form a bed, the springs will move to their extended position to provide resilient support.

Molded thermoplastic parking block with slideably interengaged members

The present invention is directed to elongate rigid thermoplastic articles that are molded from thermoplastic material and which maintain their shape even at length-to-width ratios (i.e. aspect ratios) ranging from about 4:1 to about 15:1 or greater. The inventive elongate rigid thermoplastic articles comprise molded thermoplastic material having disposed interiorly therein along their longitudinal extent a system (e.g. a pair) of slideably interengaged members. Preferred slideably interengaged members comprise hollow pipes that are sleeved for slideable interengagement. In the molding of elongate rigid thermoplastic articles in accordance with the present invention, the interiorly disposed slideably interengaged members are acted upon by the shrinkage of the cooling thermoplastic material resulting in the members sliding into closer interengagement. Distortion of the cooled elongate thermoplastic articles is substantially suppressed thereby.

Method and apparatus for producing multi-layer expanded films

ABSTRACT IMPROVEMENTS IN OR RELATING TO A METHOD AND APPARATUS FOR PRODUCING MULTI-LAYER EXPANDED FILMS Method and apparatus for forming multi-layer expanded film. A base film extruded by a die (6) is coated, immediately down-stream of the die mouth (5), by a further layer of fluid propelled from a manifold (16) through a metering orifice (19). The combination of manifold and metering orifice is necessary to permit accurate control of the flow rate of the fluid and hence of the thickness of the coating, and the mouth of the die and the metering orifice must be very close so that the base film is as resistant as possible to deflection by the impact of the coating fluid, and so that contact takes place before any substantial expansion has taken place. The downstream end of the resulting multi-layer tubular film is then held closed in known fashion and the closed tube is expanded by air under pressure admitted by an opening (7) in the die (6).

Satellite interlace synchronization system

A master station and a plurality of slave stations include synchronization equipment to enable each of the stations to have access to a common repeater in a different time slot of a time division multiplex format at the repeater, there being motion between the stations and the repeater. The master station propagates a sync burst through the repeater. Each of the stations receives this sync burst from the repeater and adjusts the frequency of the timing signals therein to compensate for the doppler shift experienced in the propagation path from each of the stations to the repeater so that the desired frequency of the timing signals is present in the repeater. Each of the slave stations also propagates different low power level, psuedo noise code ranging signal through the repeater back to itself which is used to adjust the phase of the timing signals digitally and in an analog manner by means of a motor-driven phase shifter to account for the changing range between the repeater and each of the slave stations so that a data burst of each of the slave stations appears in the proper time slot of the time division multiplex format at the repeater.

Foldable bed with collapsible sinuous springs and pivotable leg

A foldable bed is movable between an unfolded position, in which interconnected seat, cavity, and body sections are substantially horizontally aligned and of substantially uniform depth, and a folded position, in which the body section is horizontally disposed, the seat section is horizontally disposed and overlies said body section, the cavity section is generally upright and extends between the body and seat sections. In the folded position, the seat section of the mattress is collapsible, and the cavity section of the mattress is noncollapsible. The bed frame can include a leg that is a space away from the frame in the folded position that compresses a mattress head section, thereby forming spaced within which collapsible springs of the seat section can reside. The bed can include springs having upper, intermediate, and lower runs, wherein the upper and lower runs include offset portions extending in opposite directions that are generally orthogonal to a plane defined by the spring intermediate run. The bed can also include grid wires to which such springs are interconnected that have rotation-limiting means that interact with the offset portions of the spring.

Box spring and method of storing the same

A box spring (10) is condensed along its depth dimension and then packaged in this depressed state for storage and/or transportation. At its point of use, the box spring (10) is unpackaged and expanded along its depth dimension for use. Within the box spring are a plurality of support springs (20) movable from retracted, unstressed positions enabling the aforementioned compaction of the box spring (10), to extended positions which provide the resilient support of the box spring (10) when placed into use. The springs (20) are mounted such that movement of the upper support surface (30) of the box spring (10) relative to the base (16, 17) will cause the springs (20) to move into their extended or erect positions to provide resilient support for use of the box spring or to enable the box spring to be depressed into a compact mass for storage or shipment. Releasable means (50, 52) are provided to hold the box spring in its expanded, use position.

Adjustable cantilevered paint apparatus actuation system and method

Fermentation method for producing antibiotic A43F

The antibiotic A43F is active against a variety of plant pathogenic fungi. The antibiotic A43F is produced by growing an as yet unclassified species of fungus (ATCC No. 20529) on suitable fermentation media and isolating the bioactive component therefrom.

Inter-event control strategy for corona ignition systems

The invention provides a system and method for controlling corona discharge. A driver circuit provides energy to the corona igniter and detects any arc formation. Optionally, in response to each arc formation, the energy provided to the corona igniter is shut off for a short time to dissipate the arc. Once the arc dissipates, the energy is applied again to restore the corona discharge. The driver circuit obtains information relating to the corona discharge, such as timing and number of arc formations. A control unit adjusts the energy provided to the corona igniter, shut-off time, or the duration of the corona event based on the information. The adjusted energy levels and duration are applied during subsequent corona events. For example, the voltage level could be reduced or the shutoff time could be increased to limit arc formations and increase the size of the corona discharge during the subsequent corona events.

Actuated print head assembly for a contoured surface

An applicator assembly for treating a contoured surface including an attachment frame configured to secure and position an applicator head. In some embodiments, the applicator head is configured to apply a surface treatment to the contoured surface. The applicator assembly further includes, at least one sensor operatively coupled to the attachment frame and configured to scan the contoured surface and produce a contoured data set. Additionally, the applicator assembly includes an applicator actuator operatively coupled to the attachment frame and configured to manipulate the attachment frame such that the applicator assembly maintains an orientation of the applicator assembly relative to the contoured surface.

Box spring and method of storing the same

Digital audio broadcasting system

A digital audio broadcasting system that is capable of providing a large number of high quality stereophonic channels (stereo channels 1 to 33) to mobile receivers in an environment with severe multipath delay (80-I, 80-N) and fading. Intersymbol interference degradations caused by multipath delay (80-I; 80-N) are mitigated via an adaptive equalizer (21) in the receiver. The use of a dynamic single channel per carrier system preserves the simplicity inherent in the single channel per carrier assignment while it incorporates the ability to address frequency-selective fading by providing substantial frequency diversity. Frequency di-versity is achieved via a slow frequency hop implementation in which the assignment of a number of stereo channels to an equal number of carrier frequencies is changed periodically. In this manner, each of many independent stereo channels (stereo chan-nels 1 to 33) achieve the frequency diversity associated with a wide bandwidth by hopping among an equal number of carriers that fully occupy the bandwith. This diversify is achieved without any bandwidth expansion of the group of stereo channels rela-tive to fixed single channel per carrier assignment.

Motor seals

A submersible motor comprising a first housing including a motor and a second housing enclosing electrical connections between the motor and a jacketed electrical cord to the second housing. The first housing has a cavity therein in the periphery thereof. A body of compressible resilient elastomeric material is positioned in the cavity and has an exterior configuration and dimensions which conform generally with the configuration and dimensions of the cavity. The body has a plurality of generally axial passages therein through which the magnet wires from the motor extend. The wires have a diameter so that they can be readily inserted through the passages in the body. The second housing has an annular wall extending axially through the open end of the cavity in the first housing and operable, when the second housing is in mounted position on the first housing, to compress the body radially into tight conformity with the wires from the motor.

Suction stabilizer for reciprocating pumps and stabilizing method

Suction Stabilizer for Reciprocating Pumps and Stabilizing Method ABSTRACT OF THE DISCLOSURE A suction stabilizer for reciprocating pumps and method of stabilizing the inflow of liquid to the suction side of the pump, The stabilizer comprises a substantailly cyl-indrical tank, a perforate-walled cage at one end of the tank, and a flexible resilient gas-filled bladder within the cage. Liquid passes through the tank as it moves from a source to the suction side of the pump. Between suction strokes the liquid compresses gas in the bladder. During suction strokes the pressure of the gas adds to the head of liquid entering the pump. The invention involves critical ratios of the tank volume to both the pump displacement and the bladder volume.

Apparatus for pre-heating thermoplastic parisons

TITLE APPARATUS FOR PRE-HEATING THERMOPLASTIC PARISONS ABSTRACT OF THE INVENTION This invention relates to an apparatus for effecting the uniform pre-heating of thermoplastic parisons of the type that are introduced into a blow molding machine for fabrication into a blow molded article. The invention provides a hopper which is intermittently supplied with batches of parisons and through which the parisons move by gravity. A convection heating zone is provided in the hopper to uniformly heat each parison passing therethrough, and a temperature equalization zone is provided adjacent to the heating zone. The parisons are removed from the temperature equalization zone by a continuously moving parison conveyor which forms part of the temperature equalization zone.

Badge-medallion.

Box spring and method of storing same

BOX SPRING AND METHOD OF STORING SAME ABSTRACT OF DISCLOSURE A box spring is condensed along its depth dimension and then packaged in this depressed state for storage and/or transportation. At its point of use, the box spring is unpackaged and expanded along its depth dimension for use. Within the box spring are a plurality of support springs movable from retracted, unstressed positions enabling the aforementioned compaction of the box spring,to extended positions which provide the resilient support of the box spring when placed into use. In the preferred form of the invention, the springs are made from spring wire or similar material formed into a sinusoidal shape including generally coplanar wavy or sine portions. The springs are mounted such that movement of the upper support surface of the box spring relative to the base will cause the springs to move into their extended or erect positions to provide resilient support for use of the box spring or to enable the box spring to be depressed into a compact mass for storage or shipment. Releasable means are provided to hold the box spring in its expanded, use position. In the preferred embodiment disclosed, this is achieved through the use of diagonal dies interconnected to and between diagonally opposite locations within the box spring. In one embodi-ment, the ties are manually secured in a tensioned state to hold the box spring in its use position, and manual release of the ties allows the box spring to be depressed into its storage position. In another embodiment, the box spring is foldable into two overlying sections which releases tension in the ties and causes the springs to move into their retracted positions to decrease the depth of the folded box string. Unfolding of the box spring sections conversely erects the springs and tensions the ties to hold the box spring in the use position.

可変半径印刷ヘッドエンドエフェクタ

【課題】大型構造物の表面処理の自動化する表面処理アセンブリの提供。 【解決手段】輪郭形成された表面を処理するための表面処理アセンブリ６０は、少なくとも第１の輪郭形状及び第２の輪郭形状を有する調節可能な基部を含む。表面処理アセンブリは、調節可能な基部に連結されている複数のアプリケータヘッドを更に含む。更に、各アプリケータヘッドは、輪郭形成された表面４８に表面処理を適用するように構成される。更に、表面処理アセンブリ６０は、調節可能な基部に動作可能に連結されるアクチュエータを含み、アクチュエータは、第１の輪郭形状と第２の輪郭形状との間で調節可能な基部を操作するように構成される表面処理アセンブリ。 【選択図】図２

Actuated print head assembly for a contoured surface

Chain fastener

Design eor a glass vessel

Igniter assembly with improved insulation and method of insulating the igniter assembly

An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber.

Design for a glass dish

Pump.

Multi-printhead end effector and associated system and method

An end effector for printing ink on a surface is disclosed. The end effector comprises a primary block comprises a primary-block body. A plurality of primary-printing modules are coupled to the primary-block body and translationally moveable, via a corresponding first actuator. Each one of the primary-printing modules includes at least one printhead which is adjustable, relative to the primary-block body. The printhead may be adjusted by at least one of a second actuator, configured to rotate the printhead about a first axis, or a third actuator, configured to rotate the printhead about a second axis. In some examples, a fourth actuator is configured to rotate at least one printhead, relative to at least one other printhead, about a third axis. Additionally, at least one trailing block can be coupled to the primary block so that the at least one trailing block is movable relative to the primary block.

Multi-printhead end effector and associated system and method

An end effector and associated systems and methods for printing ink on a surface is disclosed. The end effector comprises a main block including a back plate. The end effector also includes a plurality of slice assemblies slidably coupled to the back plate. Each one of the plurality of slice assemblies includes a printhead and a y-actuator. The y-actuator is selectively operable to extend and retract the printhead, parallel to a y-axis in first directions, and relative to the back plate. The end effector further includes a plurality of z-actuators coupled to the back plate. Each one of the plurality of z-actuators is selectively operable to extend and retract a corresponding one of the plurality of slice assemblies, parallel to a z-axis in second directions, which is perpendicular to the y-axis and relative to the back plate.

Multi-printhead end effector and associated system and method

An end effector (100) for printing ink on a surface (302) is disclosed. The end effector comprises a primary block (102) comprises a primary-block body (114). A plurality of primary-printing modules (116) are coupled to the primary-block body and translationally moveable, via a corresponding first actuator (160). Each one of the primary-printing modules includes at least one printhead (118) which is adjustable, relative to the primary-block body. The printhead may be adjusted by at least one of a second actuator (172), configured to rotate the printhead about a first axis, or a third actuator (174), configured to rotate the printhead about a second axis. In some examples, a fourth actuator (176) is configured to rotate at least one printhead, relative to at least one other printhead, about a third axis. Additionally, at least one trailing block (104) can be coupled to the primary block so that the at least one trailing block is movable relative to the primary block.

Pneumatic starting device for internal-combustion engines.

Multi-printhead end effector and associated system and method

An end effector and associated systems and methods for printing ink on a surface is disclosed. The end effector comprises a main block including a back plate. The end effector also includes a plurality of slice assemblies slidably coupled to the back plate. Each one of the plurality of slice assemblies includes a printhead and a y-actuator. The y-actuator is selectively operable to extend and retract the printhead, parallel to a y-axis in first directions, and relative to the back plate. The end effector further includes a plurality of z-actuators coupled to the back plate. Each one of the plurality of z-actuators is selectively operable to extend and retract a corresponding one of the plurality of slice assemblies, parallel to a z-axis in second directions, which is perpendicular to the y-axis and relative to the back plate.

Variable Cross-Section Compliance Mechanism

A surface treatment support structure assembly for treating a contoured surface includes a support structure array formed from a plurality of base structures, each base structure being operably coupled with respect to one another and configured to slide along a longitudinal axis and rotate about a laterally translating axis which is perpendicular to the longitudinal axis. The support structure array further includes at least one applicator head coupled to each base structure of the support structure array, each of the at least one applicator head being configured to treat the contoured surface. Additionally, a base structure actuator is operatively coupled to and configured to manipulate each base structure along the longitudinal axis and the laterally translating axis such that the support structure array is adjusted relative to the contoured surface.

Design for a vessel

Design for glassware

Sanding machine

Matratze für Sitzmöbel oder Betten

Design for a glass vessel

Design eo r a glass plate

Corona ignition device with improved electrical performance

A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter be forward-assembled.

Drip edge

Support deck for mattress or seat

Sanding machine

Inter-event control strategy for corona ignition systems

The invention provides a system and method for controlling corona discharge. A driver circuit provides energy to the corona igniter and detects any arc formation. Optionally, in response to each arc formation, the energy provided to the corona igniter is shut off for a short time to dissipate the arc. Once the arc dissipates, the energy is applied again to restore the corona discharge. The driver circuit obtains information relating to the corona discharge, such as timing and number of arc formations. A control unit adjusts the energy provided to the corona igniter, shut-off time, or the duration of the corona event based on the information. The adjusted energy levels and duration are applied during subsequent corona events. For example, the voltage level could be reduced or the shutoff time could be increased to limit arc formations and increase the size of the corona discharge during the subsequent corona events.

Corona ignition device with improved electrical performance

A corona igniter ( 20 ) comprises a central electrode ( 22 ) surrounded by an insulator ( 26 ), which is surrounded by a conductive component. The conductive component includes a shell ( 34 ) and an intermediate part ( 36 ) both formed of an electrically conductive material. An outer surface ( 50 ) of the insulator ( 26 ) presents a lower ledge ( 52 ), and the intermediate part ( 36 ) is typically attached to the insulator ( 26 ) above the lower ledge ( 52 ) prior to inserting the insulator ( 26 ) into the shell ( 34 ). The conductive inner diameter (D g ) is less than an insulator outer diameter (D io ) directly below the lower ledge ( 52 ) such the insulator thickness (t i ) increases toward the electrode firing end ( 40 ). The corona igniter ( 20 ) can be reversed-assembled by inserting an upper end ( 42 ) of the insulator into a firing end ( 56 ) of the shell.

Intra-even control strategy for corona ignition systems

The invention provides a system and method for controlling corona discharge and arc formations during a single corona event, i.e. intra-event control. A driver circuit provides energy to the corona igniter and detects any arc formation. In response to each arc formation, the energy provided to the corona igniter is shut off for short time. The driver circuit also obtains information about the arc formations, such as timing of the first arc formation and number of occurrences. A control unit then adjusts the energy provided to the corona igniter after the shut off time and during the same corona event based on the information about the arc formations. For example, the voltage level could be reduced or the shut-off time could be increased to limit arc formations and increase the size of the corona discharge during the same corona event.

Inter-event control strategy for corona ignition systems

The invention provides a system and method for controlling corona discharge. A driver circuit provides energy to the corona igniter and detects any arc formation. Optionally, in response to each arc formation, the energy provided to the corona igniter is shut off for a short time to dissipate the arc. Once the arc dissipates, the energy is applied again to restore the corona discharge. The driver circuit obtains information relating to the corona discharge, such as timing and number of arc formations. A control unit adjusts the energy provided to the corona igniter, shut-off time, or the duration of the corona event based on the information. The adjusted energy levels and duration are applied during subsequent corona events. For example, the voltage level could be reduced or the shutoff time could be increased to limit arc formations and increase the size of the corona discharge during the subsequent corona events.