PENDULUM CLOCK AND PROCEDURE FOR VERANDERUNG THE PENDULUM CLOCK

VORRICHTUNG ZUM SYNCHRONISIEREN EINES VON EINEM MECHANISCHEM ENERGIESPENDER ANGETRIEBENEN SCHWINGSYSTEMS, INSBESONDERE EINER UHR

DEVICE FOR SYNCHRONIZING A OF A MECHANICAL ENERGY DISPENSER OF PROPELLED SCHWINGSYSTEMS, IN PARTICULAR A CLOCK

SYNCHRONIZING ARRANGEMENT FOR A TIMEKEEPING INSTRUMENT

SYNCHRONIZABLE CLOCK

METHOD AND APPARATUS FOR SYNCHRONISING AN OSCILLATING SYSTEM PARTICULARLY A TIMEPIECE, WHICH IS EN BY AN ENERGY STORAGE MEANS

ELEKTRONISCHE UHR.

ZEITHALTENDES GERAET MIT EINEM ELEKTRONISCH GEREGELTEN ANTRIEBSSYSTEM.

PROCEDE DE SYNCHRONISATION A UNE FREQUENCE MOYENNE F DES OSCILLATIONS D'UN RESONATEUR MECANIQUE D'INSTRUMENT DE MESURE DU TEMPS ET DISPOSITIF POUR LA MISE EN OEUVRE DE CE PROCEDE.

SCHALTUNGSANORDNUNG ZUM SYNCHRONISIEREN MECHANISCHER SCHWINGER VON GEBRAUCHSUHREN.

Pièce d'horlogerie électronique, comportant un système oscillant

VORRICHTUNG ZUM SYNCHRONISIEREN EINES VON EINEM MECHANISCHEN ENERGIESPEICHER ANGETRIEBENEN SCHWINGSYSTEMS, INSBESONDERE DES GANGREGLERS EINER UHR.

Zeitwerk mit Gangkontrolle durch einen Vergleichsmotor.

Von einem Arbeitsspeicher angetriebene Uhr.

Zeitwerk mit Gangkontrolle durch einen als Vergleichswerk dienenden Synchronmotor.

Uhr mit Synchronmotor zum Richten derselben.

Uhr mit einem durch einen Synchron-Kleinmotor gesteuerten Gangregler.

Gangüberwachungseinrichtung an einer Uhr.

Dispositif de synchronisation pour horloge.

Von einem Wechselstrom angetriebener Motor mit synchronisiertem Schwinganker.

Durch frequenz-regulierten Wechselstrom gesteuerte Zeitberichtigungsvorrichtung für Uhren.

Gewichtsuhr mit Gangkontrolle und Aufzug durch einen Synchronkleinmotor.

Gangüberwachungseinrichtung für Uhren, insbesondere für elektrische Uhren.

Zeitwerk mit Gangregler und mit Gangkontrolle.

Zeitwerk mit Gangkontrolle durch Vergleichsmotor.

Synchronuhr mit Gangreserve.

Durch einen Synchronmotor gerichtete Uhr.

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Appareil horaire muni d'un dispositif de synchronisation facultative.

Circuit d'asservissement pour régler la fréquence moyenne d'un système oscillant d'instrument horaire

Synchronisiereinrichtung für elektrische Uhren mit Gangreserve

Periodisch durch einen Synchronkleinmotor gerichtete Uhr.

Periodisch durch ein Zeitlaufwerk gerichtete Uhr.

Magnetische Kupplung zur elastischen, begrenzten Drehmomentübertragung

Gangüberwachungseinrichtung an einer Uhr.

Gangüberwachungseinrichtung für Zeitwerke.

Vorrichtung zur Steuerung von elektrisch oder mechanisch angetriebenen Pendeluhren durch synchronisierten Wechselstrom.

Dispositif pour l'amortissement réglable d'échappements d'horloges synchronisés.

Vorrichtung zur automatischen Regelung des Ganges bei Zeitmessern mit schwingendem Gangregler.

Pièce d'horlogerie.

Uhr mit Einrichtung zum selbsttätigen Richten der Uhr.

Synchronisierbare Uhr

Elektronisch gesteuerter Uhrenantrieb

Montre électronique

Induktiv angetriebene Uhr

Procédé pour synchroniser, sur une fréquence pilote, un micromoteur polarisé à commutation électronique

Dispositif de commande d'un moteur vibrant d'une montre électronique

Zeithaltender Antrieb

Raquetterie pour échappement synchronisé

Echappement d'horlogerie synchronisé mécaniquement

Dispositif de synchronisation d'un balancier pendulaire faisant partie d'un mouvement d'horlogerie

Installation de synchronisation d'un mécanisme d'horlogerie muni d'un organe régulateur, comportant un récepteur radio agencé pour recevoir un signal périodique de synchronisation

Elektrische Uhr

Circuit d'entretien d'un dispositif mécanique résonnant, d'un garde-temps

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Zeitmessgerät

Antriebsvorrichtung für ein zeithaltendes Gerät, insbesondere eine Kleinuhr

Pièce d'horlogerie électrique

TIMEPIECE COMPRISING A MECHANICAL OSCILLATOR WHEREIN THE MEDIUM FREQUENCY IS SYNCHRONISED ON THAT OF A REFERENCE ELECTRONIC OSCILLATOR

A mechanical oscillator, formed of a mechanical resonator and a device for maintaining oscillation, and an auxiliary oscillator forming a reference time base including a synchronisation device arranged to slave the medium frequency of the mechanical oscillator on that of the auxiliary oscillator. The synchronisation device includes an electromagnetic braking device which is formed of a coil and at least one permanent magnet and arranged such that an induced voltage is generated between the terminals of the coil in each alternation of the oscillation of the mechanical resonator. The synchronisation device is arranged to be able to reduce momentarily the impedance between the terminals of the coil during distinct time intervals, any two successive time intervals exhibiting between the respective starts thereof a time distance substantially equal to a positive whole number multiplied by half of a set-point period for the mechanical oscillator. 1. A timepiece comprising a mechanical movement which comprises:an indicator mechanism of at least one time data item,a mechanical resonator suitable for oscillating along a general oscillation axis about a neutral position corresponding to the minimum potential energy state thereof,a maintenance device of the mechanical resonator forming therewith a mechanical oscillator which is arranged to time the running of the indicator mechanism,{'b': '0', 'i': 'c;', 'an auxiliary oscillator forming a reference time base; and determining a set-point frequency for the mechanical resonator, the inverse of said set-point frequency defining a set-point period T'}the timepiece further comprising a synchronisation device arranged to slave the medium frequency of the mechanical oscillator on said set-point frequency, the synchronisation device comprising an electromagnetic braking device of the mechanical resonator, said electromagnetic braking device being formed of at least one coil and at least one permanent magnet which are arranged such that ...

TIMEPIECE INCORPORATING AN ACTUATOR COMPRISING AN ELECTROMECHANICAL DEVICE

A timepiece () includes an actuator, which applies braking pulses to the balance, which has an electromechanical device () and an electric control circuit (). The device () includes a flexible member (), formed by an elastic blade () and a mechanical element () defining a braking pad, and an electromagnetic system () formed by a coil carried by the flexible member and by a permanent magnet rigidly connected to a support () of the electromechanical device. When an electric pulse is provided to the coil, an electromagnetic force of repulsion is engendered between the coil and the permanent magnet so the mechanical element moves to a position of contact with the balance. To stabilise the rest position of the flexible member, a magnetic element () is rigidly connected to the coil to exert a magnetic return force complementary to the force of the elastic blade is provided. 12. Timepiece () , comprising:{'b': 6', '6', '6', '6', '6', '10', '10', '10', '10', '10', '22', '8, 'an actuator including an electromechanical device (; A; B; C; D), which comprises an electromagnetic system (; A; B, C, D) and a mechanical element () that is mobile in translation and associated with the electromagnetic system, and an electric control circuit (),'}{'b': 12', '52', '14', '16', '18', '24, 'the electromagnetic system being formed by a permanent magnet (, ) and a coil (), one out of the two of which is carried by a flexible member () of the electromechanical device and the other by a support () of this flexible member, said mechanical element being formed by said flexible member and the actuator being arranged in such a way as to allow, in response to an electric activation signal generated by the electric control circuit and provided to the coil to engender an electromagnetic force between this coil and said permanent magnet, a movement of the mechanical element from a rest position, in which it is provided that the mechanical element remains in the absence of an activation of the ...

SELF-ADJUSTABLE HOROLOGICAL OSCILLATOR

A horological movement () including: a plate (); a mechanical resonator () including an oscillating balance () rotatably mounted relative to the plate (), and a spiral spring () coupled to the balance (); an electromagnetic regulator () coupled to the mechanical resonator () to regulate the frequency of the oscillations of the balance (), and including at least one permanent magnet () fixedly mounted relative to the plate (), at least one coil (), a quartz or silicon resonator () and an electronic circuit () connected to the resonator () and to the coil (), all mounted on the balance () while being completely included in an inner cavity () delimited by the latter. 16. A horological movement () comprising:{'b': '7', 'a plate ();'}{'b': '8', 'claim-text': [{'b': 11', '7', '12', '11', '16', '17, 'an oscillating balance () rotatably mounted relative to the plate () about an axis (), this balance () having an upper face () and a lower face (), and'}, {'b': 22', '11', '22', '23', '7', '11, 'a spiral spring () coupled to the balance (), this spiral spring () having a first end () fixed relative to the plate () and a second end secured to the balance ();'}], 'a mechanical resonator () comprising{'b': 29', '8', '11', '29, 'claim-text': [{'b': '30', 'at least one permanent magnet (),'}, {'b': '31', 'at least one coil (),'}, {'b': '32', 'a quartz or silicon resonator () and'}, {'b': 33', '32', '31, 'an electronic circuit () connected to the resonator () and to the coil (), wherein'}], 'an electromagnetic regulator () coupled to the mechanical resonator () to regulate the frequency of the balance () oscillations, the electromagnetic regulator () comprising{'b': 30', '7, 'the magnet () is fixedly mounted relative to the plate (); and'}{'b': 31', '32', '33', '11', '18, 'the coil (), the resonator () and the electronic circuit () are mounted on the balance () while being completely included in at least one inner cavity () delimited by the latter.'}2618161711. The movement () ...

Electrical oscillation generators

ELECTRONIC CIRCUIT FOR SUPPORTING THE OSCILLATIONS OF THE MECHANICAL RESONATOR

Timepiece comprising a mechanical oscillator with intermediate frequency synchronized with the frequency of a reference electronic oscillator

本发明涉及一种钟表，该钟表包括机械振荡器和辅助振荡器，该机械振荡器由机械谐振器(6)和用于维持振荡的维持装置形成，该辅助振荡器形成基准时基(22)。该钟表还包括同步装置(20)，该同步装置设置成使机械振荡器的中频依赖于辅助振荡器的频率。该同步装置包括电磁制动装置(26)，该电磁制动装置由线圈和至少一个永磁体形成，它们设置成使得在机械谐振器的振荡的每个半周期中在线圈的端子之间产生感应电压。同步装置设置成能够在不同的时间间隔期间瞬时减小线圈的端子之间的阻抗，任何两个连续的时间间隔在其各自的起点之间呈现基本上等于正整数乘以机械振荡器的设定点周期的一半的时间距离。

Frequency synchronising system for oscillating timepiece balance - by combining signal train with balance oscillation signal

The electronic synchronising signal is used to synchronise an oscillating timepiece balance with a given frequency. The actual frequency of the oscillating balance is measured as a function of the amplitude of the oscillations, the signal representing the balance oscillations combined with a recurrent wave train at the given frequency. The amplitude of the composite signal obtd, is compared with a threshold value, so as to provide a control signal, when the composite signal exceeds the threshold value. The oscillations of the timepiece balance are corrected by using the control signal to adjust the amplitude of the oscillations.

Further training in timepieces and the like

Timepiece quartz oscillator timepiece producing timing pulses - supplies pulses to inductive drive means for oscillating balance

The timepiece mechanism has a quartz oscillator, which supplies reference pulses to an inductive system for maintaining the oscillations of an oscillating balance mechanism (13). The inductive system employs two opposed magnets (20a, 20b) positioned side by side along a line (18) concentric to the oscillation path of the balance mechanism (13). The magnets (20a, 20b) cooperate with a coil receiving the oscillator pulses, with either the coil or the magnets (20a, 20b) carried by the oscillating balance (13). Two additional magnets (21a, 21b) are positioned respectively either side of the two principle magnets (20a, 20b), along the same line (18), each additional magnet (21a, 21b) position with its poles reversed in relation to the principle magnet (20a, 20b) immediately adjacent it.

DEVICE FOR THE SYNCHRONIZATION OF AN OSCILLATING SYSTEM DRIVEN BY A MECHANICAL ENERGY ACCUMULATOR, PARTICULARLY OF A CLOCK WITH A STROKE CONTROLLER

Improvements to time mechanism synchronization devices.

Patent FR2143688A1

Timepiece including a mechanical oscillator whose average frequency is synchronized with that of a reference electronic oscillator.

La pièce d’horlogerie comprend un oscillateur mécanique, formé d’un résonateur mécanique (6) et d’un dispositif d’entretien de l’oscillation, et un oscillateur auxiliaire formant une base de temps de référence (22). Elle comprend un dispositif de synchronisation (20) agencé pour asservir la fréquence moyenne de l’oscillateur mécanique sur celle de l’oscillateur auxiliaire. Ce dispositif de synchronisation comprend un dispositif de freinage électromagnétique (26) qui est formé d’une bobine et d’au moins un aimant permanent et agencé de manière qu’une tension induite est générée entre les bornes de la bobine dans chaque alternance de l’oscillation du résonateur mécanique. Le dispositif de synchronisation est agencé pour pouvoir diminuer momentanément l’impédance entre les bornes de la bobine au cours d’intervalles de temps distincts, deux intervalles de temps successifs quelconques présentant entre leurs débuts respectifs une distance temporelle sensiblement égale à un nombre entier positif multiplié par la moitié d’une période de consigne pour l’oscillateur mécanique. The timepiece comprises a mechanical oscillator, formed by a mechanical resonator (6) and an oscillation maintenance device, and an auxiliary oscillator forming a reference time base (22). It includes a synchronization device (20) arranged to slave the average frequency of the mechanical oscillator to that of the auxiliary oscillator. This synchronization device comprises an electromagnetic braking device (26) which is formed of a coil and at least one permanent magnet and arranged so that an induced voltage is generated between the terminals of the coil in each alternation of the oscillation of the mechanical resonator. The synchronization device is arranged to be able to momentarily decrease the impedance between the terminals of the coil during distinct time intervals, any two successive time intervals having between their respective beginnings a time distance substantially equal to a positive ...

System for maintaining oscillations in an electric timing mechanism having an oscillatory element

Mechanical movement, the accuracy of which is determined by an electronic circuit

New AC electric clock

Patent FR2249378B1

Patent FR2162404A1

Self-correcting clock

Patent FR2207303A1

Timepiece comprising a mechanical oscillator associated with a control system.

L’invention concerne une pièce d’horlogerie comprenant un oscillateur mécanique qui cadence la marche d’un mouvement horloger. Pour réguler cette marche, la pièce d’horlogerie comprend encore un transducteur électromécanique formé par un ensemble électromagnétique comprenant au moins une bobine (28) et au moins un aimant monté sur le balancier de l’oscillateur mécanique. Le signal de tension induite produit par le transducteur électromagnétique lors de chaque oscillation, présente, dans une première demi-alternance avant que l’oscillateur passe par sa position neutre, un premier lobe d’amplitude maximale ayant une première polarité et, dans une seconde demi-alternance suivant un passage par la position neutre, un deuxième lobe d’amplitude maximale ayant une deuxième polarité opposée à la première. La pièce d’horlogerie comprend en outre un convertisseur électrique (56) comprenant deux capacités d’alimentation (C1, C2) et un dispositif de régulation (52) de la fréquence moyenne de l’oscillateur mécanique. La première capacité d’alimentation est chargée seulement avec une tension positive alors que la deuxième capacité est chargée seulement avec une tension négative. De manière réguler la marche de l’oscillateur mécanique, le dispositif de régulation (52) comprend une pompe de charge (60) agencée pour transférer des charges électriques entre les deux capacités en fonction d’une dérive temporelle de l’oscillateur mécanique relativement à une base de temps. The invention relates to a timepiece comprising a mechanical oscillator that clock the march of a watch movement. To regulate this step, the timepiece further comprises an electromechanical transducer formed by an electromagnetic assembly comprising at least one coil (28) and at least one magnet mounted on the balance of the mechanical oscillator. The induced voltage signal produced by the electromagnetic transducer during each oscillation, has, in a first half-wave before the oscillator passes through its neutral ...

PROCESS AND DEVICE FOR QUARTZ-PRECISION SYNCHRONIZATION OF A MECHANICAL OSCILLATING SYSTEM

Hourly movement with electric power reserve

Improved device for synchronizing synchronized clock escapements

Mechanical movement, the accuracy of which is determined by an electronic circuit

Mechanical timepiece with timed annular balance rotating angle control mechanism

In a mechanical timepiece of the present invention, a movement 100 includes a barrel complete 120, a center wheel and pinion 124, a third wheel and pinion 126, a fourth wheel and pinion 128, a balance with hairspring 140, an escape wheel and pinion 130 and a pallet fork 142. A coil 180 is attached on a front surface of a main plate 102 in a manner facing a surface of a balance wheel 140b close to the main plate. A balance magnet 140e is attached on a surface of the balance wheel 140b close to the main plate in a manner facing a front surface of the main plate 102. A gap between the balance magnet 140e and the coil 180 is determined such that a magnetic flux of the balance magnet 140e has an effect upon the coil when the coil 180 is energized. A first lead wire 182 connects one terminal of the coil 180 and a first contact member 168a and second contact member 168b. A second lead wire 184 connects one terminal of the coil 180c and a stud bridge 170.

A timekeeper with a mechanical oscillator that synchronizes the intermediate frequency with the frequency of the electronic oscillator.

Electric timepiece

An electric timepiece wherein a mechanical vibrator is synchronized with a signal which compares signals of a relatively high-frequency time standard with a relatively low-frequency mechanical vibrator. A first embodiment applies nonlinear characteristics of frequency in response to changes in vibrating amplitude of the mechanical vibrator. In a second embodiment, a time standard signal is utilized as a synchronizing signal to control the phase of the input signal for driving the mechanical vibrator and for synchronizing the mechanical vibrator.

METHOD AND DEVICE FOR SYNCHRONIZING A VIBRATION SYSTEM DRIVEN BY AN ENERGY ACCUMULATOR, ESPECIALLY ONE HOUR

Patent JPS506373A

Patent FR2202318B1

Timepiece with a mechanical movement coupled to an electronic regulator mechanism

Rate control device for watch movements, in particular for clocks

Timepiece having a mechanical movement associated with an electronic regulator

Patent FR2216613B3

The display system (4) is driven by an electronically controlled drive device (5, 6, 9). The drive device comprises an unbalance system (5) which is controlled by an electronic switching device (9) and, via a gear (6) drives the display system constructed as a pointer mechanism. The unbalance system (5) can oscillate at a first or at a second frequency. Also present are a quartz oscillator (1) and an electric frequency divider (2). The output of the frequency divider is connected to one input of a bistable flip-flop (3). With each zero passage, the unbalance system generates a voltage pulse which is fed via a pulse-shaping stage (5a) to a further frequency divider (8). The output of the further frequency divider is connected to the other input of the bistable flip-flop. The two said frequency dividers are constructed such that the pulse frequency of the pulse trains fed to the two inputs of the bistable flip-flop deviate only slightly from one another. The electronic switching device (9) is controlled by the pulses occurring at the output of the flip-flop, whose width depends on the phase relationship between the said pulse trains, and the unbalance system is influenced to oscillate either at the first or at the second frequency.

Patent FR2210787A1

Patent FR2174978A1

Mechanical timepiece with timed annular balance rotating angle control mechanism

Display correction circuit for electronic timepiece - has pulse generator providing correction pulses of variable frequency

The display correction circuit is used for an electronic clock or watch, with a frequency divider, a counter network and a fluidci crystal digital display. It employs a pulse generator which supplies clock pulses with a variable frequency for correcting the time display. The pulse generator consists of a rotating pulse wheel (30), which has alternate insulating and contact zones (31a, 32) around its periphery, which is contacted by a contact spring (34), providing the pulses as it alternately contacts the insulating and contact zones (31a, 32). A ratchet wheel (35) is fixed to the pulse wheel (30) and is acted on by a ratchet spring (36). A selector switch in the drive circuit for the pulse wheel (30), selects forwards or reverse correction of the time display.

ELECTRONIC CIRCUIT FOR POWERING THE OSCILLATIONS OF A MOTOR ORGAN

Electrical oscillation generators

Timepiece with quartz oscillator - is used to synchronise oscillating balance wheel with inductive drive system

The timepiece mechanism has an oscillating balance, with an inductive system for maintaining the balance oscillations, supplied with synchronising pulses from a quartz oscillator. The inductive system employs permanent magnets cooperating with an inductive coil, one of which is fixed and the other being carried by the oscillating balance, with the induced magnetic field having at least four zero induction points. At least three magnets (20a, 20b, 21a, 21b) or gps. of magnets are arranged parallel to the oscillation path of the balance, with alternate magnetisation directions. The central magnet (21a, 21b) or magnet gp. occupies a larger sector along the oscillation path than that of the two outer magnets (20a, 20c) or magnet gps.

Patent FR2138117B1

Timepiece assembly comprising a watch and a system for correcting the time

A timepiece assembly includes a watch having a mechanical movement and an analogue time display, the running of which is set by a mechanical resonator, and a support for the watch. To correct a time displayed by the analogue display, the timepiece assembly includes a correction system which is formed by a mechanical device incorporated into the watch and by an electrical device incorporated into the support. The mechanical device includes a magnet supported by an elastic blade and is arranged in the watch to brake the oscillating mechanical resonator, for example by applying periodic braking, or to momentarily stop its oscillation by exerting a magnetic force on the magnet with a magnetic field produced by a coil of the electrical device and passing through the case of the watch, to carry out essentially a set correction of the time displayed.

Patent JPS48104586A

Synchronized clock escapement

腕時計および時刻を修正するためのシステムを備える時計アセンブリ

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Dispositif de synchronisation pour un instrument dit garde-temps

機械式ムーブメントと表示される時間を補正するためのデバイスとを備える計時器

機械式ムーブメントと表示される時間を補正するためのデバイスとを備える計時器

【課題】機械式ムーブメントと表示される時間を補正するためのデバイスとを備える計時器を提供する。【解決手段】腕時計２は機械式共振器１４を組み込んだ機械式ムーブメントによって形成される。腕時計は、実際時間を表示する表示器１２と、少なくとも１つの基準時間位置を通る少なくとも１つの針の通過を検出するためのデバイス３０によって、および表示器についての全体的時間誤差を決定することを可能にする電子補正回路４０によって形成される補正デバイス６と、機械式共振器を制動するためのデバイス２２Ａと、を備える。補正デバイスは、以前に決定された全体的時間誤差の関数として、表示される実際時間を補正することができるように構成されている。この目的のために、表示される実際時間を補正するために、制動デバイスが補正期間中に機械式共振器に作用して、表示器の駆動機構の動作を変化させることができるように、補正デバイスが構成されている。【選択図】図１

Timepiece assembly comprising a mechanical oscillator associated with a regulating device

The timepiece assembly comprises a mechanical movement equipped with a mechanical oscillator, formed by a resonator of the balance-hairspring type, and a device for regulating the oscillation frequency thereof using an auxiliary oscillator equipped with a quartz resonator. The regulating device comprises a sensor, suitable for detecting the passage of the resonator via the neutral position thereof, a measuring device suitable for measuring, on the basis of position signals supplied by the sensor, a time drift of the mechanical oscillator relative to the auxiliary oscillator, and a device for applying to the resonator mechanical braking pulses when a certain time drift is observed. For this purpose, the resonator has a braking surface which extends over at least a certain sector having a certain length along the oscillation axis and against which a braking member may press in order to momentarily brake this resonator.

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1,252,673. Clocks and watches. SOC . ANON. DES ETEBS LEON HATOT. Feb.17, 1969 [Feb.19, 1968], No.8467/69. Heading G3T. In a system for synchronizing the mechanical oscillator of a timing device, and including a radio receiver 20 for receiving a periodic radio synchronizing signal, and a winding BS connected to receive the output of the receiver thereby to synchronize the oscillator, a switching device 22 is controlled by the oscillator and electrically connected to prevent energization of the synchronizing winding except when the oscillator is within a predetermined limited range of positions in which the synchronizing signal is effective and which corresponds to a small fraction of the repetition period of the synchronizing signal. The switching device 22 may be in series with the winding BS as illustrated in Fig. 2, or in the power supply circuit or a stage of the receiver 20. One form of switching device 22 comprises a transistor in the emitter-collector circuit of which the coil BS is connected, and in the base-emitter circuit of which is connected a pick-up coil, positioned in relation to a moving magnet system carried by a balance or pendulum so that the transistor is rendered conducting during a desired fraction of the period of oscillation of the balance or pendulum. In other embodiments, Figs.6 and 7 (not shown) a switching transistor is rendered conducting by pulses from a circuit maintaining the oscillations of a balance and comprising a further transistor and drive and pickup coils; whilst in further embodiments, Figs.9 to 11 (not shown) the radio synchronizing signal is applied to one or both of the drive and pick-up coils in the oscillation maintaining circuit, the transistor of which functions as the switching device. The system may also include a filtering circuit Fig. 1 (not shown) for rendering ineffective all parasitic signals received during the intervals between the synchronizing signals.

Uhr mit einem mechanischen uhrwerk, das mit einem elektronischen regulator gekoppelt ist

Mechanical timepiece with electrostatic capacity type detecting part and braking part

Verfahren und vorrichtung zur kompensation der temperaturabhaengigen veraenderungen der frequenz eines oszillators, insbesondere fuer uhren bzw. chronometer

Synchronizing arrangement for a timekeeping instrument

包括表和用于校正时间的系统的时计组件

一种时计组件（2）包括：具有机械机芯和指针式时间显示装置（10）的表（4），该表的运行由机械谐振器设置；以及用于所述表的支撑件（22），特别是展示箱、盒或匣。为了校正由指针式显示装置所显示的时间，时计组件包括校正系统（16），该校正系统一方面由包含到表中的机械设备（18）并且另一方面由包含到支撑件中的电气设备（20）形成。机械设备包括由弹性叶片（26）支撑的磁体（24），并且其布置在表中，以便能够凭借由电气设备的线圈（28）产生的并且穿过表的壳体（6）的磁场、通过在磁体上施以磁力而制动摆动的机械谐振器（特别是通过施加周期性制动）或暂时停止机械谐振器的摆动，从而实质上执行所显示的时间的所设置的校正。

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Verfahren zum Synchronisieren eines mechanischen Resonators mit einer Steuerfrequenz f, unter Vermittlung eines elektromagnetischen Unterhaltungsmotores, der unter der Kontrolle einer modulierten, eine Frequenz nf aufweisenden Spannungsquelle steht und Vorrichtung zur Ausübung dieses Verfahrens

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Procedimento di sincronizzazione di un risonatore meccanico meccanico e dispo sitivo per l attuazione del detto procedimento

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Uhrwerk mit durch einen synchronmotor synchronisiertem mechanischem gangordner.

包括與調節裝置相關聯的機械振盪器的鐘錶組件

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Synchronizing arrangement fora timekeeping instrument

Synkroniseringsanordning for ett ur

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Sistema di sincronizzazione per strumenti cronometrici

Synchronizing arrangement for a timekeeping instrument

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Synchronizing arrangement fora timekeeping instrument

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Ensemble horloger comprenant une montre et un système de correction de l'heure

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Synchronisationseinrichtung für zeithaltende Geräte

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Synchronized escapement clock

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