EP0062218A2 - Système pour la commande à l'heure exacte de dispositifs qui affichent et/ou utilisent le temps - Google Patents

Système pour la commande à l'heure exacte de dispositifs qui affichent et/ou utilisent le temps Download PDF

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Publication number
EP0062218A2
EP0062218A2 EP82102361A EP82102361A EP0062218A2 EP 0062218 A2 EP0062218 A2 EP 0062218A2 EP 82102361 A EP82102361 A EP 82102361A EP 82102361 A EP82102361 A EP 82102361A EP 0062218 A2 EP0062218 A2 EP 0062218A2
Authority
EP
European Patent Office
Prior art keywords
time information
time
power supply
supply network
carrier frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82102361A
Other languages
German (de)
English (en)
Other versions
EP0062218A3 (fr
Inventor
Gerhard Dinse
Hermann Schwarz
Walter Dipl.-Phys. Engel
Hans-Wolfgang Steinlein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0062218A2 publication Critical patent/EP0062218A2/fr
Publication of EP0062218A3 publication Critical patent/EP0062218A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0005—Transmission of control signals
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G7/00—Synchronisation

Definitions

  • the invention relates to a system for the correct control of time-indicating and / or time-evaluating devices, consisting of the functional elements of a radio clock suitable for receiving and evaluating the coded time information emitted by a radio transmitter with display unit and / or time-programmable switching device for generating switching commands,
  • Such a system is available, for example, in the form of the computer radio clock 4200 from hopf elektronik KG, Lüdenborg, and is described in an advertising document entitled "Computer radio clock 4200" from this company.
  • the Physikalisch-Technische Bundesweg (PTB) broadcasts the legal time for the Federal Republic of Germany via the long-wave transmitter DCF 77.
  • the carrier frequency of 77.5 kHz of this transmitter is here amplitude-modulated with coded time information, the time code being used for the coded transmission of time and date. Details of the encoded time information are detailed in the "Extract PTB report PTB ME 23 (March 79)" or in the above-mentioned advertising leaflet.
  • the radio clock mentioned contains a complete long-wave receiver for the frequency 77.5 kHz, the demodulated time information being processed in an evaluation device having a decoding device and being displayed on a display unit.
  • a time-programmable switching device is provided for generating switching commands.
  • To transmitter failure bridging includes the well-known radio clock a quartz-stabilized electronic clock. In this clock, plausibility checks are carried out, based on the result of which the more plausible time is always displayed.
  • the known radio clock is equipped with a microcomputer for signal processing.
  • the invention has for its object to provide a system of the type mentioned, which allows the existing in a residential or building unit, a large number of time-indicating and / or time-evaluating devices to reproduce or process high-precision time information without each of them Devices each contain the components of a complete radio clock.
  • a separate first structural unit is provided for each residential or building unit, which contains at least the antenna, the pre-selection and amplification of the coded 'time information ' functional elements, an auxiliary oscillator and a mixer for generating an intermediate frequency, a filter for separating a sideband of the intermediate frequency, an amplifier and a coupling device for transmitting the sideband to the power supply network installed in the residential or building unit, and that the time-indicating and / or time-evaluating present in the residential or building unit Devices, which are preferably accommodated in domestic appliances which supply time information and are connected to the power supply network, as a second structural unit only have at least one decoupling device which is connected to the power supply network and for which the time information is included holding signal, a demodulator for obtaining the encoded time information and a decoder for decoding the time information Containing evaluation device with display unit and / or switching device.
  • Time-indicating and / or time-evaluating devices can be designed, for example, as individual devices in the form of house clocks, electronic calendars or as part of house devices, such as time-programmable video recorders, kitchen stoves, washing machines or even heating systems.
  • the part of a long-wave receiver designed as the first structural unit can be set up at a location of the residential or building unit that is favorable for receiving the long-wave signal.
  • time-indicating and / or time-evaluating devices or the household appliances contained in these devices By connecting the time-indicating and / or time-evaluating devices or the household appliances contained in these devices to the power supply network, this time information is transferred to these devices so that they can be further processed there without great effort by the decoupling device, the demodulator and the evaluation device containing a decoding device can be. Highly precise and uniform time information is thus available for all time-indicating and / or time-evaluating devices present in the residential or building unit, without the expense of a complete radio clock being required in each case.
  • the changeover to summer time is carried out uniformly and without any special intervention, since the time information broadcast by the radio station has been changed accordingly.
  • the first structural unit additionally has a demodulator, an RF filter, an RF oscillator for generating a carrier frequency, a modulator for superimposing the demodulated time information and the carrier frequency, the demodulator processes the intermediate frequency and the modulator feeds the coupling device. While the intermediate frequency served as the carrier frequency in the previous case, it is now possible to use a dedicated RF oscillator to specify a special carrier frequency for transmission in the residential or building unit, which takes into account the transmission properties of the power supply network installed in the residential or building unit wearing.
  • the auxiliary oscillator is used as an RF oscillator and the output signal of the auxiliary oscillator is fed to the modulator as a carrier frequency.
  • the intermediate frequency which may not be optimal in view of the transmission properties of the power supply network, is avoided as the carrier frequency, and instead the frequency of the auxiliary oscillator, which is present anyway, is used.
  • a separate RF oscillator for generating the carrier frequency can thus be made superfluous.
  • the carrier frequency is approximately 100 kHz.
  • each second structural unit present in the residential or building unit has such an additional device.
  • each of the time displays present in the residential or building unit supplies the and / or time-evaluating devices with the current time information even in the event of a transmitter failure, which can be the case, for example, in the event of thunderstorms near the transmitter.
  • This also applies in the event that the first structural unit works incorrectly or only garbled time information arrives due to malfunctions in the installed power supply network.
  • the coupling device has a transformer, the secondary winding of which is connected in series with a capacitor on the one hand to the center conductor and on the other hand to the phase conductor of the power supply network.
  • the primary winding of the transformer is fed with either the sideband of the intermediate frequency or the output signal of the modulator. Flawless electrical isolation is achieved through the transformer.
  • the coupling device has a transformer, the secondary winding of which is connected in series with at least one capacitor on the one hand to the center conductor and on the other hand to the protective conductor of the power supply network.
  • the coupling device has a transformer, the secondary winding of which is part of the protective conductor. In contrast to the previous exemplary embodiment (parallel feed), the feed is now carried out serially.
  • Pulse-shaped interference signals in the external dining network can have a negative effect on the internal transmission of time information via the apartment's or building's own power supply network.
  • the carrier frequency energy is not reduced by network consumers. It only has to be applied for the transmission path and for the second structural units.
  • an RF shunt for the carrier frequency is arranged between the center conductor and the protective conductor in front of the coupling device .
  • the HF shunt is used to create a transmission path for the carrier frequency that is as loss-free as possible, since the transmission path formed from the center conductor and the protective conductor and the input resistance of the decoupling device is closed by the HF shunt for the carrier frequency with low impedance.
  • a capacitor can serve as the HF shunt.
  • the HF shunt is designed as a series resonant circuit.
  • the series resonant circuit is designed by suitable dimensioning of the capacitor and the inductor so that its resonance frequency matches the carrier frequency. This avoids losses in carrier frequency energy.
  • the decoupling device When the carrier frequency energy is fed into the phase conductor, it is advantageous if the decoupling device has a transformer whose primary winding is connected in series with at least one capacitor to the center conductor and to one of the phase conductors and which feeds the demodulator on the secondary side. In order to reliable potential isolation is achieved, the capacitor excluding the coupling of the mains frequency to the subsequent functional elements.
  • the decoupling device has at least one capacitor and an ohmic resistor connected in series and is arranged between the center conductor and the protective conductor, the output signal of the decoupling device being tapped at the ohmic resistor. This eliminates the need for a transformer.
  • the capacitor ensures the necessary electrical isolation between the center conductor and the protective conductor.
  • an inductor can be provided to supplement a series resonant circuit.
  • its resonance frequency is matched to the carrier frequency, so that a particularly interference-free coupling of the carrier frequency containing the time information is made possible.
  • the modulator is designed as an exclusive OR gate, one input of which is supplied with the carrier frequency and the other input of which is the demodulated coded time information, the coupling device being connected to the output and to one input of the exclusive -OR gate is connected.
  • an exclusive OR gate one input of which is supplied with the carrier frequency and the other input of which is the demodulated coded time information
  • the coupling device being connected to the output and to one input of the exclusive -OR gate is connected.
  • the second module has the microcomputer, the output of the demodulator and the electronic clock is fed to the input side for decoding and for comparison and for plausibility check.
  • the processing capacity and speed of commercially available microcomputers is fully sufficient for these purposes, so that complex implementation of these functions in the form of discrete or integrated components is not necessary.
  • the electronic clock is quartz-stabilized and is battery-powered at least in the event of a power failure. This provides high-precision time information in the time-indicating and / or time-evaluating devices even in the event of a mains voltage breakdown.
  • the first structural unit has a dashed border and is given the reference symbol 1.
  • This first structural unit 1 is provided only once for a residential or building unit. It serves to receive the coded time information emitted by the radio transmitter and contains the functional elements of a superhet receiver until the intermediate frequency signal is generated and for the separation, amplification and coupling of one side band of the intermediate frequency signal into the apartment or building's internal power supply network.
  • this receiving device is designed to receive the DCF 77 long-wave transmitter.
  • the incoming radio signals are received by the antenna 2, all frequencies of other transmitters which are irrelevant to the time information being suppressed being suppressed in the preselection element 3.
  • the output signal of the precharge element 3 is fed via an amplifier 4 as a signal f s to the one input of a mixer 5, at whose second input the output signal f o of an auxiliary oscillator 6 is present.
  • the mixing stage 5 the two input signals f s + f 0 are superimposed in a known manner, which results in the intermediate frequency signal f z at the output of the mixing stage 5.
  • the intermediate frequency signal f z has two frequency bands with the frequencies f s + f o and f s - f o on.
  • each of these two sidebands is amplitude-modulated with the encoded time information.
  • the higher frequency side band is suppressed in the intermediate frequency filter 7.
  • the low-frequency sideband f ZO is fed via the amplifier 8 to the coupling device 9 shown in broken lines.
  • the coupling device 9 has an RF transmitter 10, the primary winding 11 of which is connected on the one hand to the output of the amplifier 8 and on the other hand to the reference potential.
  • the secondary winding 12 of the RF transmitter 10 is connected on the one hand to the center conductor and on the other hand via one of the capacitors 13 to 15 to the phase conductors of the power supply network N installed in the residential or building unit.
  • connection is made in such a way that between the power supply network N installed in the residential or building unit and the supply network coming from the outside, the distributor and the electricity or electricity meter 16 assigned to the residential or building unit are arranged.
  • the capacitors 13 to 15 are used for electrical isolation between the phase conductors RST and are dimensioned such that effects of the mains frequency on the RF transmitter 10 and the functional elements behind it are largely excluded.
  • the first structural unit 1 is here preferably arranged in the residential or building unit in such a way that optimal reception conditions exist for the radio signal containing the time information.
  • the coded time information-containing in amplitude modulated form intermediate frequency signal f zo is now - in the total installed in the living room or building unit power grid N available and can this Stromversrgungsnetzes at any location, such as sockets, for time-indicating and / or time evaluating devices in the form of the second unit 17 are removed.
  • These time-indicating and / or time-evaluating devices are preferably accommodated in household appliances connected to the power supply network N, such as, for example, time-programmable kitchen stoves, video recorders, washing machines or clocks.
  • the second structural unit 17 shows one of these time-indicating and / or time-evaluating devices, which is referred to as the second structural unit 17 and is outlined with dashed lines. Normally, a large number of such second structural units 17 will of course be connected to the power supply network N in each residential or building unit.
  • Each of these second structural units 17 comprises a decoupling device 18 for the intermediate frequency signal f zo impressed on the power supply network N, which has an HF transmitter 19 in the exemplary embodiment.
  • the primary wick; lung.20 of this RF transmitter 19 is connected via a capacitor 21 on the one hand to the center conductor MP and on the other hand to one of the phase conductors, in the exemplary embodiment the phase conductor R.
  • the capacitor 21 serves on the one hand to prevent a galvanic connection between the center conductor MP and the phase conductor and on the other hand to prevent the coupling of network-frequency signals via the RF transmitter 19.
  • the intermediate frequency signal f zo present at the secondary winding 22 of the RF transmitter 19 is fed to a demodulator 24 via an amplifier 23.
  • One or even both of the amplifiers 8 and 23 can be dispensed with, depending on the quality of the intermediate frequency signal f zo provided at the output of the filter 7.
  • the demodulator 24 consists of a diode circuit.
  • the signal f occurring at the output of the demodulator 24, which directly the coded Zeitinfor tion in the form of a pulse train is processed in an evaluation device 25, which is shown in dashed lines.
  • the evaluation device 25 has a decoding device 26 on the input side, which is used to decode the time information.
  • This decoded time information fdc can be checked for correctness in a plasticity checking device 27. This can be done by parity check and / or by checking the second information, with several successive seconds information being stored and then checked to see whether they each have a value increasing by one unit.
  • the evaluation device 25 contains a converter 28, which feeds a display unit 29 for the time information and at least one time-programmed switching device 30.
  • the converter 28 can thus have a coding device for a seven-segment display, a driver, a comparator for comparing the current data and the data entered via a programming device for switching times, depending on the output signal of which a controllable switch or a relay can be actuated.
  • a large number of time-indicating and / or time-evaluating devices present in a residential or building unit are thus controlled at largely arbitrary locations by the highly precise time information provided by a single first structural unit.
  • the large number of these time-indicating and / or time-evaluating devices in the form of the second structural unit 17 are not functional if the radio transmitter emitting the time information fails or if the power supply network installed in the residential or building unit has serious faults. This danger is excluded in the embodiment shown in FIG. 2.
  • the input part of the first structural unit 1 'consisting of the functional elements 2 to 8 corresponds completely to that shown in FIG. 1.
  • the amplifier 8 is followed by a demodulator 35, the output signal of which is freed of high-frequency signal components in an HF sieve 36.
  • a receiver module 37 can be purchased completely commercially, for example in the form of the long-wave receiver module TCA 440 from Siemens.
  • the said module is provided with a ferrite antenna, a quartz oscillator, a two-circuit intermediate frequency amplifier with fading backward regulation, a demodulator with a diode and an RF filter.
  • the output signal_ of the receive module 37 which is separate from the carrier frequency and contains the coded time information, is fed to the two inputs of a modulator 39 together with the output signal of an RF oscillator 38 which supplies the carrier frequency.
  • the modulator 39 consists of an exclusive DDER gate 40, one input of which carries the carrier frequency f t and the other input of which the demodulated coded time information f is fed, the input of the coupling device 9 'in the form of the primary winding 11 of the transmitter 10 to the output of the exclusive OR gate 40 and is connected to one of its inputs.
  • the secondary winding 12 of the transformer 10 is connected in series with the capacitor 13 in Fig. 2 on the one hand to the protective conductor SL, on the other hand at the center conductor MP of the power supply network N installed in the residential or building unit connected.
  • the use of the additional RF oscillator 38 leaves the carrier frequency f t free for the transmission of the time information, so that the carrier frequency f t which best corresponds to the transmission properties of the power supply network can be selected.
  • a number of advantages are achieved by coupling the signal to be transmitted onto the center conductor MP and the protective conductor SL as transmission lines. These advantages are that the time information to be transmitted remains limited to the apartment or building unit and there is no crosstalk to neighboring residential or building units. In addition, this pair of lines is considerably free of interference pulses compared to the phase conductors R, S, T. Furthermore, the consumers connected to the power supply network N do not undesirably dampen the energy of the signal to be transmitted. If, for reasons of cost, the own HF oscillator 38 is to be saved, the output signal of the auxiliary oscillator 6 can also be used as the carrier frequency f t . This is shown in dashed lines in FIG. 2.
  • the decoupling device 18' is also connected on the one hand to the center conductor MP and on the other hand to the grounded protective conductor SL-.
  • the decoupling device 18 ' also has an RF transmitter 19, the primary winding 20 of which is connected in series with the capacitor 21 to the two lines MP and SL mentioned, whereas the secondary winding 22 forms the output of the decoupling device 18'.
  • the amplifier 23 which corresponds to a conventional RF amplifier module, the output signal of the decoupling device 18 'is amplified.
  • the output signal f of the demodulator 24 representing the demodulated time information forms the input signal of the evaluation device 25 ', which has a decoding device 26 on the input side.
  • the second structural unit 17 ' has a clock component 41 for an electronic clock.
  • Such clock components are available as complete units as integrated circuits in the trade (for example clock component MM 35 046 from National Semiconductors).
  • This clock module 41 is powered by a battery 42, so that operation is ensured even in the event of a power failure.
  • the output signal f u of the clock module 41 and the output signal f dc of the decoding device 26 are fed to both a comparison device 43 and a plausibility check device 27 '.
  • the more plausible one is selected by the interaction of the comparison device 43 and the plausibility check device 27 'and is displayed on the display unit 29 via the converter 28, and is generated in the time-programmable switching device 30 used by switching commands.
  • the second structural unit 17 'shown in FIG. 2 has this additional device, consisting of the clock module 41, the comparison device 43 and the plausibility check device 27', ensures that even under adverse circumstances, for example in the event of a failure of the radio transmitter or interference or interruptions in the power supply network N, a reliable high-precision time display and time evaluation is guaranteed.
  • the functional elements contained in the dashed rectangle 44 that is to say the decoding device 26, the clock module 41, the comparison device 43 and the plausibility check device 27 'can be implemented by a microcomputer. Since the processing speed of the data that can be achieved with a microcomputer is sufficiently high and microcomputers are available inexpensively, the outlay for creating these functional elements from discrete or integrated components can thus be avoided.
  • FIGS. 3 and 4 show two further exemplary embodiments for the coupling or decoupling of the carrier-frequency-modulated time information.
  • the feed in FIGS. 3 and 4 is serial.
  • the center conductor and the protective conductor serve as transmission lines for the reasons already mentioned above.
  • Fig. 3 it is assumed that there is a low-resistance galvanic connection between the grounded protective conductor SL and the center conductor MP in front of the distributor and electricity meter 16 to the feed side.
  • the primary winding 11 of the RF transmitter 10 is - as shown in FIGS. 1 and 2 - fed either by the modulator 39 or the amplifier 8 with the carrier-frequency, coded time information.
  • the secondary winding 12 is part of the protective conductor SL.
  • the RF transformer can be designed, for example, as a through-current converter, with the protective conductor SL being passed through the primary winding 11 as a secondary winding.
  • the decoupling device 18 ′′ is considerably more cost-effective than that shown in FIGS. 1 and 2, since an HF transmitter is not required.
  • the center conductor MP and the protective conductor SL are standard circuit of a capacitor 44 and an ohmic resistor 45 connected to each other, the ohmic resistor 45 feeding the input of the amplifier 23.
  • the ohmic resistor 45 can also be replaced by the input resistance of the subsequent functional element, ie in the exemplary embodiments by the input resistance of the amplifier 23.
  • the signal path runs from the primary winding 12 via the protective conductor SL, the components 45 and 44, the center conductor MP, the low-resistance connection 46 between the center conductor MP and protective conductor SL and the adjacent part of the protective conductor SL to the primary winding 10. This signal path is relatively low-loss , so that feed-in powers of a few watts are sufficient.
  • the outcoupling device 18 "'differs from that shown in FIG. 3 in that an inductor 49 is arranged in series with the ohmic resistor 45 and the capacitor 44, so that here too a Series resonant circuit is created. This series resonant circuit is also matched to the carrier frequency of the time information.
  • the decoupling device 18 '' shown in FIG. 4 can also be used as a decoupling device in the embodiment shown in FIG. 3.
  • Calendars are also considered to be time-indicating devices in the sense of the present invention.
EP82102361A 1981-04-02 1982-03-22 Système pour la commande à l'heure exacte de dispositifs qui affichent et/ou utilisent le temps Withdrawn EP0062218A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813113377 DE3113377A1 (de) 1981-04-02 1981-04-02 System zur zeitrichtigen steuerung von zeitanzeigenden und/oder zeitauswertenden geraeten
DE3113377 1981-04-02

Publications (2)

Publication Number Publication Date
EP0062218A2 true EP0062218A2 (fr) 1982-10-13
EP0062218A3 EP0062218A3 (fr) 1983-08-17

Family

ID=6129182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102361A Withdrawn EP0062218A3 (fr) 1981-04-02 1982-03-22 Système pour la commande à l'heure exacte de dispositifs qui affichent et/ou utilisent le temps

Country Status (6)

Country Link
EP (1) EP0062218A3 (fr)
DE (1) DE3113377A1 (fr)
DK (1) DK148082A (fr)
FI (1) FI821168L (fr)
NO (1) NO821106L (fr)
YU (1) YU74882A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164766A (en) * 1984-09-18 1986-03-26 Europ Electronic Syst Ltd Improvements in clocks
EP0424772A2 (fr) * 1989-10-26 1991-05-02 DIEHL GMBH & CO. Affichage d'horlogerie susceptible d'être synchronisé à distance
GB2304938A (en) * 1995-09-06 1997-03-26 Cheuk Fai Ho Master and one by one slave synchronisation
WO2001024427A1 (fr) * 1999-09-30 2001-04-05 Nokia Corporation Procede et dispositif de synchronisation
WO2002041567A2 (fr) * 2000-11-15 2002-05-23 BSH Bosch und Siemens Hausgeräte GmbH Procede et dispositif de mise a disponibilite d'une information temporelle dans un appareil domestique
DE19782170B3 (de) * 1996-12-20 2012-11-22 Bns Competence Ab Zeitschalter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320012C2 (de) * 1993-06-17 1997-12-04 Loewe Opta Gmbh Fernbedienungsgeber zum Steuern von elektronischen Geräten und/oder Gerätefunktionen
DE19526635A1 (de) * 1995-07-21 1997-01-23 Claus Dipl Ing Meder Funkuhr für Hausgeräte
DE19611830A1 (de) * 1996-03-26 1997-10-09 Telefunken Microelectron System zum Verteilen eines Zeitzeichensignals über das Wechselspannungsnetz
DE19801688A1 (de) * 1998-01-19 1999-07-22 Abb Patent Gmbh Funkgesteuerte Zeitschaltuhr
CN104199273A (zh) * 2014-09-17 2014-12-10 宝捷时计电子（深圳）有限公司 无按键和无把的手表

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR710714A (fr) * 1930-05-03 1931-08-28 Ateliers Brillie Freres Sa Système de distribution d'heure
FR805303A (fr) * 1935-08-05 1936-11-17 Système de distribution d'heure
US2124642A (en) * 1933-06-07 1938-07-26 Thomas W Varley Electrical device
US2647360A (en) * 1949-06-28 1953-08-04 Ibm Electric time system with electronic self-regulation
US3811265A (en) * 1973-01-17 1974-05-21 J Cater Coded time indicating transmission system
DE2538384A1 (de) * 1975-08-28 1977-03-03 Siemens Ag Empfangseinrichtung fuer codierte zeitsignale
DE2643250A1 (de) * 1976-09-25 1978-03-30 Braun Ag Zentralgesteuerte uhr

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR710714A (fr) * 1930-05-03 1931-08-28 Ateliers Brillie Freres Sa Système de distribution d'heure
US2124642A (en) * 1933-06-07 1938-07-26 Thomas W Varley Electrical device
FR805303A (fr) * 1935-08-05 1936-11-17 Système de distribution d'heure
US2647360A (en) * 1949-06-28 1953-08-04 Ibm Electric time system with electronic self-regulation
US3811265A (en) * 1973-01-17 1974-05-21 J Cater Coded time indicating transmission system
DE2538384A1 (de) * 1975-08-28 1977-03-03 Siemens Ag Empfangseinrichtung fuer codierte zeitsignale
DE2643250A1 (de) * 1976-09-25 1978-03-30 Braun Ag Zentralgesteuerte uhr

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
UHREN TECHNIK, Band 2, Nr. 4, 1975, Seiten 9-16, Ulm, DE. *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164766A (en) * 1984-09-18 1986-03-26 Europ Electronic Syst Ltd Improvements in clocks
EP0424772A2 (fr) * 1989-10-26 1991-05-02 DIEHL GMBH & CO. Affichage d'horlogerie susceptible d'être synchronisé à distance
EP0424772A3 (en) * 1989-10-26 1992-01-22 Diehl Gmbh & Co. Remotely synchronizable time display
US5251191A (en) * 1989-10-26 1993-10-05 Diehl Gmbh & Co. Remotely-synchronizable time display
GB2304938A (en) * 1995-09-06 1997-03-26 Cheuk Fai Ho Master and one by one slave synchronisation
DE19782170B3 (de) * 1996-12-20 2012-11-22 Bns Competence Ab Zeitschalter
WO2001024427A1 (fr) * 1999-09-30 2001-04-05 Nokia Corporation Procede et dispositif de synchronisation
WO2002041567A2 (fr) * 2000-11-15 2002-05-23 BSH Bosch und Siemens Hausgeräte GmbH Procede et dispositif de mise a disponibilite d'une information temporelle dans un appareil domestique
WO2002041567A3 (fr) * 2000-11-15 2002-08-08 Bsh Bosch Siemens Hausgeraete Procede et dispositif de mise a disponibilite d'une information temporelle dans un appareil domestique

Also Published As

Publication number Publication date
FI821168L (fi) 1982-10-03
DE3113377A1 (de) 1982-10-28
EP0062218A3 (fr) 1983-08-17
YU74882A (en) 1985-03-20
FI821168A0 (fi) 1982-04-02
DK148082A (da) 1982-10-03
NO821106L (no) 1982-10-04

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