Differential conversion circuit with a larger coupling capacitor than resonator capacitor

A differential conversion circuit for converting an unbalanced signal to a balanced signal is provided. The differential conversion circuit is arranged with primarily passive components, and so avoids introducing noise or other disturbances to the signal. The differential conversion circuit has a terminal input for receiving an unbalanced signal that is related to a communication input signal. An inductor and a resonating capacitor connect to the terminal input, and a coupling capacitor connects to the inductor. One differential output line is provided by the resonating capacitor, while the other differential output line is provided by the coupling capacitor. The output from the capacitors is thereby a pair of lines that provide a balanced differential signal which is deliverable to a balanced load.

Transportable radar utilizing harmonic drives for anti-backlash antenna movement

A transportable weather radar having radar electronics functionally located above the elevational joint and a frame superstructure rotationally connected to the elevational joint onto which is mounted a parabolic radar antenna adapted for Doppler weather radar use. The radar has a rotational drive assembly mounted below and supporting the elevational joint and a harmonic drive unit positioned inside the elevational joint so that the antennae may be rotated without significant backlash during rotational changes. A hollow center in the rotational joint allows for the passing of electronics cable through the middle of the joint and down through rotating assemblies and to electronics in or adjacent to the radar pedestal.

Transportable X-band radar having antenna mounted electronics

A transportable weather radar having radar electronics functionally located above the elevational joint and a frame superstructure rotationally connected to the elevational joint onto which is mounted a parabolic radar antenna adapted for Doppler weather radar use. The radar has a rotational drive assembly mounted below and supporting the elevational joint and a harmonic drive unit positioned inside the elevational joint so that the antennae may be rotated without significant backlash during rotational changes. A hollow center in the rotational joint allows for the passing of electronics cable through the middle of the joint and down through rotating assemblies and to electronics in or adjacent to the radar pedestal.

Messaging system with application-defined states

A messaging system in which a core messaging infrastructure stores and manages messaging attributes, but applications external to the core infrastructure define and modify most attributes. Attribute types may be easily defined or modified, the manner in which attribute values are obtained may be easily defined or modified, and the entity types to which attributes are assigned may be easily defined or modified. The messaging system includes a plurality of messaging entities, such as messages, folders, and users, a plurality of attributes associated with the messaging entities, and a plurality of applications. Each application is operable to examine and modify at least some of the messaging entities and attributes. An application selection device is operable to examine at least some of the messaging entities and at least some of the attributes and to select an application to be invoked, from among the plurality of applications, based on values of the examined messaging entities and attributes ...

Bulk transport system

A flexible bulk container capable of transporting a first material and introducing a second material for mixing therewithin is disclosed wherein 1) said container can comprise a component of a bulk transport system further comprising a container assembly, and 2) said container includes a body defining a cavity, at least one opening, at least one vent, and a material delivery system assembly wherein a) the body is flexible and capable of positioning within the container assembly, b) the opening provides communication with the cavity, and c) the material delivery system assembly comprises at least one manifold, a portion of which is positioned within the cavity of the flexible bulk container, and said manifold includes a shell, an interior region, an inlet accessible from outside of the cavity of the flexible bulk container and at least one passageway extending from the internal region, through the shell, to, in turn, place the interior of the manifold in communication with the cavity.

BULK TRANSPORT SYSTEM

A flexible bulk container capable of transporting a first material and introducing a second material for mixing therewithin is disclosed wherein 1) said container can comprise a component of a bulk transport system further comprising a container assembly, and 2) said container includes a body defining a cavity, at least one opening, at least one vent, and a material delivery system assembly wherein a) the body is flexible and capable of positioning within the container assembly, b) the opening provides communication with the cavity, and c) the material delivery system assembly comprises at least one manifold, a portion of which is positioned within the cavity of the flexible bulk container, and said manifold includes a shell, an interior region, an inlet accessible from outside of the cavity of the flexible bulk container and at least one passageway extending from the internal region, through the shell, to, in turn, place the interior of the manifold in communication with the cavity.

Biasing circuit for degenerated differential pair

An improved single-ended input differential pair amplifier stage comprises: 1) a first p-n-p transistor having a base terminal coupled to an input voltage; 2) a first load impedance having a first terminal coupled to a ground reference and a second terminal coupled to a collector of the first p-n-p transistor; 3) a second p-n-p transistor having a base terminal coupled to the ground reference; 4) a second load impedance having a first terminal coupled to a ground reference and a second terminal coupled to a collector of the second p-n-p transistor; 5) an inductor having a first terminal coupled to an emitter of the first p-n-p transistor and a second terminal coupled to an emitter of the second p-n-p transistor; and 6) a constant current source coupled to the emitter of the second p-n-p transistor.

TRANSPORTABLE RADAR UTILIZING HARMONIC DRIVES FOR ANTI-BACKLASH ANTENNA MOVEMENT

A transportable weather radar having radar electronics functionally located above the elevational joint and a frame superstructure rotationally connected to the elevational joint onto which is mounted a parabolic radar antenna adapted for Doppler weather radar use. The radar has a rotational drive assembly mounted below and supporting the elevational joint and a harmonic drive unit positioned inside the elevational joint so that the antennae may be rotated without significant backlash during rotational changes. A hollow center in the rotational joint allows for the passing of electronics cable through the middle of the joint and down through rotating assemblies and to electronics in or adjacent to the radar pedestal.

Declarative message addressing

A messaging system, and method of operation thereof, which supports combinations of directory and mailing list addressing mechanisms. Intended message recipients are specified as declarative addresses, which may include combinations of directory and mailing list information. The messaging system includes a messaging server and an address resolution module. The messaging server receives a message from a sender system and transmits the message to the recipient system. The address resolution module, which is coupled to the messaging server, receives a declarative address associated with the message, resolves the declarative address into at least one messaging address and transmits the at least one messaging address to the messaging server. In one embodiment, a database system may be coupled to the address resolution module to allow address resolution based on information stored in a database. The address resolution module generates a database query based on the declarative address and transmits ...

Information stream management push-pull based server for gathering and distributing articles and messages specified by the user

An information stream management network server is disclosed that enables distributing articles to a destination in the network at times and in forms that are specified by a user, while also enabling accessing and receiving the articles from sources in the network at times and in forms that are independent of the user. The network server handles both information pull articles and information push articles. The information push articles use declarative addressing to specified groups of users, thereby masking recipient endpoint identities and delivery preferences from sources and enabling broadcast communication to members of such a group.

Declarative message addressing

A messaging system, and method of operation thereof, which supports combinations of directory and mailing list addressing mechanisms. Intended message recipients are specified as declarative addresses, which may include combinations of directory and mailing list information. The messaging system includes a messaging server and an address resolution module. The messaging server receives a message from a sender system and transmits the message to the recipient system. The address resolution module, which is coupled to the messaging server, receives a declarative address associated with the message, resolves the declarative address into at least one messaging address and transmits the at least one messaging address to the messaging server. In one embodiment, a database system may be coupled to the address resolution module to allow address resolution based on information stored in a database. The address resolution module generates a database query based on the declarative address and transmits ...

Oscillator circuit with automatic level control for selectively minimizing phase noise

An oscillator with oscillator and voltage control circuitry for generating an oscillation signal having an amplitude that is automatically controlled for a selectively minimized phase noise. Automatic level control is used for controlling the amplitude of the oscillation signal such that the phase noise of the oscillation signal can be maintained at some selected level, e.g., minimized. The minimum signal voltage appearing across the oscillation circuit is monitored for controlling the bias of the circuit to prevent it from entering a saturation state, thereby avoiding adverse loading effects responsible for degraded phase noise performance.

Transportable radar utilizing a fiber optic rotary joint for communication of radar reflectivity data and harmonic drives for positioning the antenna

A transportable weather radar, including radar electronics functionally located above the elevational joint, a frame superstructure rotationally connected to an elevational assembly supporting the elevational joint, a rotational drive assembly mounted below and supporting the elevational assembly, and at least one harmonic drive for positioning the radar antenna. The radar includes a fiber optic rotary joint positioned above a slip ring assembly which is positioned within a lower portion of the elevational assembly so that as the elevational assembly rotates a fiber optic cable connected to the lower end of the fiber optic rotary joint is stationary relative to the rotating elevational assembly. The slip ring assembly permits electrical signals to traverse through traditional metal cables from the pedestal to the frame superstructure where electronics are held.

TRANSPORTABLE X-BAND RADAR HAVING ANTENNA MOUNTED ELECTRONICS

A transportable weather radar having radar electronics functionally located above the elevational joint and a frame superstructure rotationally connected to the elevational joint onto which is mounted a parabolic radar antenna adapted for Doppler weather radar use. The radar has a rotational drive assembly mounted below and supporting the elevational joint and a harmonic drive unit positioned inside the elevational joint so that the antennae may be rotated without significant backlash during rotational changes. A hollow center in the rotational joint allows for the passing of electronics cable through the middle of the joint and down through rotating assemblies and to electronics in or adjacent to the radar pedestal. 1. A Doppler radar capable of transmitting in the X-band frequency range , comprising:a. a pedestal for supporting said radar;b. a rotational assembly supported by said pedestal;c. elevational assembly rotationally supported by said rotational assembly, said elevational assembly including two axially aligned elevational joints mounted on opposite sides of said elevational assembly;d. a frame superstructure rotationally supported by and spanning said elevational joints about said elevational assembly, said frame superstructure including a separate antenna mounting frame spanning said elevational assembly; and,e. a parabolic antenna assembly mounted on said antenna mounting frame having an orthomode feed horn and at least one wavguide assembly connected to said orthomode feed horn for bidirectional communications with a transceiver assembly.2. A radar as recited in claim 1 , wherein said frame superstructure further includes a pair of downward depending panels symmetrically opposed to one another and positioned on opposite ides of said elevational assembly claim 1 , wherein each said panel holds an electronics compartment.3. A radar as recited in claim 2 , wherein at least one of said electronics compartments holds a radar transceiver.4. A radar as ...

Filter circuitry for voltage controlled oscillator

The controlling circuit element of a voltage controlled oscillator (VCO) for use in a phase lock loop (PLL) is a varactor connected between the terminals used to convey the power supply voltage and the frequency control voltage. The loop filter, implemented in a shunt configuration at the input of the VCO, is also connected between the power supply and frequency control voltage terminals. As a result, any variations in the power supply voltage appear at both terminals of the varactor due to the voltage coupling effect of the loop filter between the shared power supply and frequency control voltage terminals.

Low-noise gain switching circuit using tapped inductor

There is disclosed an improved variable gain low-noise amplifier. The variable gain low-noise amplifier comprises: 1) an input transistor having a first ground terminal coupled to ground and an input terminal coupled to an input signal; 2) N output transistor, each of the N output transistors having a first output terminal coupled to a second output terminal of the input transistor; 3) N switches, each of the N switches turning a corresponding one of the N output transistors ON and OFF by selectively coupling an input terminal of the corresponding one of the N output transistors to one of: 1) an enabling voltage and 2) a disabling voltage; and 4) an inductor comprising a first inductor terminal coupled to a supply voltage, a second inductor terminal coupled to a second output terminal of a first one of the N output transistors, and N-1 tap points intermediate the first and second inductor terminals, each of the N-1 tap points coupled to a second output terminal of a corresponding one of ...

Bulk transport system

A flexible bulk container capable of transporting a first material and introducing a second material for mixing therewithin is disclosed wherein 1) said container can comprise a component of a bulk transport system further comprising a container assembly, and 2) said container includes a body defining a cavity, at least one opening, at least one vent, and a material delivery system assembly wherein a) the body is flexible and capable of positioning within the container assembly, b) the opening provides communication with the cavity, and c) the material delivery system assembly comprises at least one manifold, a portion of which is positioned within the cavity of the flexible bulk container, and said manifold includes a shell, an interior region, an inlet accessible from outside of the cavity of the flexible bulk container and at least one passageway extending from the internal region, through the shell, to, in turn, place the interior of the manifold in communication with the cavity.

TRANSPORTABLE RADAR UTILIZING A FIBER OPTIC ROTARY JOINT FOR COMMUNICATION OF RADAR REFLECTIVITY DATA AND HARMONIC DRIVES FOR POSITIONING THE ANTENNA

A transportable weather radar, including radar electronics functionally located above the elevational joint, a frame superstructure rotationally connected to an elevational assembly supporting the elevational joint, a rotational drive assembly mounted below and supporting the elevational assembly, and at least one harmonic drive for positioning the radar antenna. The radar includes a fiber optic rotary joint positioned above a slip ring assembly which is positioned within a lower portion of the elevational assembly so that as the elevational assembly rotates a fiber optic cable connected to the lower end of the fiber optic rotary joint is stationary relative to the rotating elevational assembly. The slip ring assembly permits electrical signals to traverse through traditional metal cables from the pedestal to the frame superstructure where electronics are held. 1. A radar , comprising:a. a pedestal for supporting said radar;b. a rotational assembly supported by said pedestal, said rotational assembly including a harmonic drive actuator;c. an elevational assembly rotationally supported by said rotational assembly and including two axially aligned elevational joints mounted on opposite sides of said elevational assembly, and a fiber optic rotary joint mounted within said elevational assembly such that a fiber optic cable may pass down through said elevational assembly without rotational binding as it rotates on said rotational assembly;d. a frame superstructure rotationally supported by and spanning said elevational joints about said elevational assembly, said frame superstructure including a separate antenna mounting frame spanning said elevational assembly; and,e. a parabolic antenna assembly mounted on said antenna mounting frame having an orthomode feed horn and at least one waveguide assembly connected to said orthomode feed horn for bidirectional communications with a transceiver assembly.2. A radar as recited in claim 2 , further comprising a slip ring assembly ...

Universal message delivery system

A message delivery system, for use with a communication network and in which a network presence is provided for an entity having attributes, delivers a message from a sender to the network presence. In some cases, information identifying the sender is omitted from the message. The delivery system can append non-repudiable sender information to the message. The sender can provide selected attributes as an address, and the delivery system replaces the selected attributes with an address of the network presence without disclosing the address to the sender. A software agent processes the delivered message in accordance with a processing preference included in the entity attributes.

Universal directory service

A directory system, for use with a communication network and in which a network presence is provided for an entity having attributes, stores the attributes and responds to queries. The attributes may have associated authenticity information. The attributes may have a hierarchical relationship, and the queries include information dependent on this hierarchical relationship. When the query includes attributes, the directory system provides identifying information for the entity and automatically transfers the identifying information to a vendor service. When the attributes have associated security information, the directory service responds to queries with only attribute information associated with a public security indication.

Universal Connection Point for Resources and Communication

A communication network system provides a network presence for an entity, the network presence being identified by handle information relating to the entity, the handle information being unrelated to a physical endpoint. Attributes of the entity are associated with the handle information. The handle is a source of vendor services to the entity, and may be a source of services from the entity to others.

Bulk transport system

A flexible bulk container capable of transporting a first material and introducing a second material for mixing therewithin is disclosed wherein (1) said container can comprise a component of a bulk transport system further comprising a container assembly (12), and (2) said container includes a body (14) defining a cavity, at least one opening (44), at least one vent, and a material delivery system assembly (43)wherein a) the body is flexible and capable of positioning within the container assembly, b) the opening provides communication with the cavity, and c) the material delivery system assembly comprises at least one manifold(60), a portion of which is positioned within the cavity of the flexible bulk container, and said manifold includes a shell (El), an interior region (62), an inlet (64) accessible from outside of the cavity of the flexible bulk container and at least one passageway (66)extending from the internal region, through the shell ,to,in turn, place the interior of t he manifold in communication with the cavity.

Universal Message Delivery System

A message delivery system, for use with a communication network and in which a network presence is provided for an entity having attributes, delivers a message from a sender to the network presence. In some cases, information identifying the sender is omitted from the message. The delivery system can append non-repudiable sender information to the message. The sender can provide selected attributes as an address, and the delivery system replaces the selected attributes with an address of the network presence without disclosing the address to the sender. A software agent processes the delivered message in accordance with a processing preference included in the entity attributes.

Universal message delivery system

Universal message delivery system

A message delivery system, for use with a communication network and in which a network presence is provided for an entity having attributes, delivers a message from a sender to the network presence. In some cases, information identifying the sender is omitted from the message. The delivery system can append non-repudiable sender information to the message. The sender can provide selected attributes as an address, and the delivery system replaces the selected attributes with an address of the network presence without disclosing the address to the sender. A software agent processes the delivered message in accordance with a processing preference included in the entity attributes.

Bulk transport system

A flexible bulk container capable of transporting a first material and introducing a second material for mixing therewithin is disclosed wherein (1) said container can comprise a component of a bulk transport system further comprising a container assembly (12), and (2) said container includes a body (14) defining a cavity, at least one opening (44), at least one vent, and a material delivery system assembly (43)wherein a) the body is flexible and capable of positioning within the container assembly, b) the opening provides communication with the cavity, and c) the material delivery system assembly comprises at least one manifold(60), a portion of which is positioned within the cavity of the flexible bulk container, and said manifold includes a shell (El), an interior region (62), an inlet (64) accessible from outside of the cavity of the flexible bulk container and at least one passageway (66)extending from the internal region, through the shell ,to,in turn, place the interior of t he manifold in communication with the cavity.

Universal connection point for resources and communication unrelated to a physical endpoint

A communication network system provides a network presence for an entity, the network presence being identified by handle information relating to the entity, the handle information being unrelated to a physical endpoint. Attributes of the entity are associated with the handle information. The handle is a source of vendor services to the entity, and may be a source of services from the entity to others.

Bulk transport system

Transportable radar utilizing a fiber optic rotary joint for communication of radar reflectivity data and harmonic drives for positioning the antenna

A transportable weather radar, including radar electronics functionally located above the elevational joint, a frame superstructure rotationally connected to an elevational assembly supporting the elevational joint, a rotational drive assembly mounted below and supporting the elevational assembly, and at least one harmonic drive for positioning the radar antenna. The radar includes a fiber optic rotary joint positioned above a slip ring assembly which is positioned within a lower portion of the elevational assembly so that as the elevational assembly rotates a fiber optic cable connected to the lower end of the fiber optic rotary joint is stationary relative to the rotating elevational assembly. The slip ring assembly permits electrical signals to traverse through traditional metal cables from the pedestal to the frame superstructure where electronics are held.

Transportable radar utilizing harmonic drives for anti-backlash antenna movement

Universal telephone number information service

Systems and methods for automatic fitting and product recommendations using machine learning

One or more aspects of the present disclosure are directed to systems and methods for a mobile¬ based and a web-based fit and product recommendation and discovery. In one aspect, a method includes receiving a plurality of parameters, via a graphical user-interface, the plurality of parameters providing individual-specific measurements pertaining to an article; performing a plurality of numerical analyses using the plurality of parameters; and determining at least one fit recommendation for the user based on the plurality of numerical analyses; determining one or more product recommendations for the user based on the at least one fit recommendation; and outputting the at least one fit recommendation and the one or more product recommendations to the graphical user-interface.

Systems and methods for automatic fitting and product recommendations using machine learning

One or more aspects of the present disclosure are directed to systems and methods for a mobile-based and a web-based fit and product recommendation and discovery. In one aspect, a method includes receiving a plurality of parameters, via a graphical user-interface, the plurality of parameters providing individual-specific measurements pertaining to an article; performing a plurality of numerical analyses using the plurality of parameters; and determining at least one fit recommendation for the user based on the plurality of numerical analyses; determining one or more product recommendations for the user based on the at least one fit recommendation; and outputting the at least one fit recommendation and the one or more product recommendations to the graphical user-interface.