EP0455183A2 - Horloge radio-commandée autonome - Google Patents

Horloge radio-commandée autonome Download PDF

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Publication number
EP0455183A2
EP0455183A2 EP91106884A EP91106884A EP0455183A2 EP 0455183 A2 EP0455183 A2 EP 0455183A2 EP 91106884 A EP91106884 A EP 91106884A EP 91106884 A EP91106884 A EP 91106884A EP 0455183 A2 EP0455183 A2 EP 0455183A2
Authority
EP
European Patent Office
Prior art keywords
display
radio clock
time
clock according
time zone
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.)
Granted
Application number
EP91106884A
Other languages
German (de)
English (en)
Other versions
EP0455183B2 (fr
EP0455183B1 (fr
EP0455183A3 (en
Inventor
Wolfgang Ganter
Wolfram Hodapp
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.)
Junghans Uhren GmbH
Original Assignee
Junghans Uhren GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6853493&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0455183(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
Publication of EP0455183A2 publication Critical patent/EP0455183A2/fr
Publication of EP0455183A3 publication Critical patent/EP0455183A3/de
Application granted granted Critical
Publication of EP0455183B1 publication Critical patent/EP0455183B1/fr
Publication of EP0455183B2 publication Critical patent/EP0455183B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G04G9/0076—Visual time or date indication means in which the time in another time-zone or in another city can be displayed at will
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0064—Visual time or date indication means in which functions not related to time can be displayed
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R20/00—Setting the time according to the time information carried or implied by the radio signal
    • G04R20/08—Setting the time according to the time information carried or implied by the radio signal the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R60/00—Constructional details
    • G04R60/04—Antennas attached to or integrated in watch bracelets

Definitions

  • the invention relates to an autonomous radio clock according to the preamble of claim 1.
  • Such a radio clock is known, for example, from US Pat. No. 4,650,344.
  • Their function is based on checking from time to time whether the current electromechanical time display (such as the angle of the pointer) due to switching from an internal time-keeping circuit corresponds to the current absolute time, which is transmitted in coded form by a transmitter and from one to the Radio clock built-in receiver tuned to this transmitter is decoded. If necessary, the time display is corrected on the basis of the received, completely coded absolute time information.
  • an indicator pointer is provided for that radio clock, which initially is in the rhythm of the received coding frequency is continued until an absolute time information could be decoded to correct the time display.
  • a restless run of the indicator pointer is an unmistakable indication that no undisturbed reception of the time information coded in the second grid is possible, that is to say an adjustment or correction of the time display is not to be expected under the current reception conditions. This applies accordingly if, after a reset, the received and decoded seconds information is displayed digitally, but does not count up from 1 to 59 undisturbed in seconds.
  • the object of the invention is to create a radio-controlled clock of the generic type which provides a more meaningful reception signal display in terms of operational readiness than e.g. the mere fact that there have been several unsuccessful attempts to receive it.
  • the actually given reception field strength is measured and presented at the operating location of the radio clock. If the field strength of the time information transmitter recorded via the watch antenna is too small, a trouble-free decoding of an absolute time information for the control and possibly correction of the current time display cannot be expected. Often, an at least temporarily changed spatial orientation of the receiving antenna is then sufficient, so that it can be observed from the corresponding change in the displayed receiving field strength whether sufficient reception conditions have now been achieved for decoding the absolute time information.
  • the radio clock is equipped with an optronic display for displaying time-derived information
  • a bar graph display can also be switched to display other variable sizes that are of interest for the operation of the clock; such as for displaying the battery voltage as needed so that a new power source can be used in good time before it is exhausted.
  • equipping the clock with an incremental bar graphic also enables the bar elements to be used as individual jump mark displays (so-called flags). These elements can be used, for example, to mark a weekday scale relative to the current day of the current week, information that can be obtained from a calendar advance, but can also be decoded from the absolute time information transmitted by radio.
  • a blinking of the bar graph field strength display expediently indicates that the receiver is currently switched on; which in a manner known per se automatically occurs at predetermined times during the autonomous operation of the watch from the internal time-keeping circuit, but can also be done manually via the so-called JUNGHANS "transmitter call button".
  • a radio clock of the generic type that can be carried along on the edge or beyond the limits of the time zone for which the coded absolute time information transmitted by radio is designed.
  • a radio clock is expediently equipped with a zone switch in order, if necessary, to change the time display decoded from the radio information by zone increments when the time zone equipped with the aforementioned transmitter is exited or returned to.
  • an immediate manual switchover of the hour display i.e. a fixed hour offset compared to the possibly still receivable and decoded hour information, with the display of the other time and time-derived variables remaining unchanged
  • time zone switch since in the case of an electromechanical time display, this cannot change as quickly as required for gearbox reasons, i.e. cannot follow the manual time zone changeover without delay, in this case it is more convenient to use the time zone switch to directly enter the hour assigned to the future time zone as the new current target time in which the electromechanical time display is received in the same way as in the case of a correction based on an absolute time information that differs from a current display.
  • Such time zone switches appear independently of the need for protection, regardless of the presence of a field strength display in an autonomous radio clock.
  • the circuit clock and sketched radio clock 11 is equipped with a miniaturized antenna 12 which feeds a receiver 14 via an antenna line 13. This is tuned to at least one transmitter, which is usually operated in the long-wave frequency band and which quasi-continuously emits coded absolute time information. This is demodulated in the receiver 14 and converted in a decoder 15 into digitized time information, which is transferred to a display control circuit 16 for a multi-digit digital display 17. If an analog display 18 is additionally provided for the display of the current hour and minute, this information need not additionally be presented in the digital display 17; this can then be limited to a two-digit day, month and second display D, M, S, of which the first two groups of digits are followed by an ordinal point 19 to simplify the interpretation (FIG. 2).
  • an electromechanical display 18 is equipped with a coding or incremental detector 20 in order to display the current mechanical display position (i.e. the current time display) in a comparator 21 with the (absolute ) Time information on to compare.
  • a comparator 21 actuates a changeover switch 22 in order to control the electromechanical converter 23 (for example a clock stepper motor) with an increased frequency f2 from an autonomous internal time-keeping circuit 24 until the mechanical display 18 again matches the predetermined time information.
  • the comparator 21 switches the changeover switch 22 back, and from then on the converter 23 is clocked further at the time-keeping frequency f1.
  • a reception indicator 25 is provided, which is preferably implemented as a flashing representation between or next to the digits of the optronic display 17 . If, according to the preferred implementation example shown, a weekday display 26 with jump labels 27 is provided, the weekday abbreviations (in FIG. 2 the English-language abbreviations M, T, T, W, F, S, S for the weekdays Monday ...
  • the antenna 12 is followed by a level measuring device 30 upstream or downstream of the amplifying receiver 14, which can control the sequence of all day marks 27 via an intensity control circuit 31 in the manner of a bar graph display.
  • a part of the optronic display 17 can be used to signal, if necessary, that the operating voltage of the power source 36 has dropped critically, for example, a buffered solar cell should be exposed to the radiation or the battery should be changed immediately in order to avoid an imminent stoppage of the clock 11 .
  • a detector 37 is provided, which works, for example, as a voltmeter. If the display position detector 20 works with light-emitting diodes in light barriers, as described in more detail in US Pat. No.
  • the receiver 14 is switched on whenever the clock 11 is put into operation, for example by equipping it with a (fresh) power source 36 Query circuit 40, which is preset to certain times, such as reaching every full hour of the current time. However, if it is a configuration as a wristwatch radio watch 11, it is more expedient to specify only a few points in the night in the query circuit 40 as switch-on times for the receiver 14. Because when the wristwatch 11 is worn during the day, the movements cause field strength fluctuations in the receiving antenna 12, which overlap with an amplitude-modulated coding of the received time information and thus falsify the coding, i.e. can prevent the decoding of current time information, although the reception field strength actually would be sufficient. Such irritation of the wearer, and the unnecessary energy consumption due to a functionally unsuccessfully switched on receiver 14, are avoided if the switch-on times are shifted into the deep night in which the wristwatch 11 is stored or in any case the arm of the wearer is at rest.
  • the receiver 14 can also be switched on manually via a so-called “transmitter call button” 41, which is arranged in a recessed manner in the housing 60 of the clock 11 in order to avoid erroneous actuation (as can be seen in FIG. 2).
  • an isolating switch 42 between the decoder 15 and a register 43 is opened, which is placed on the plausible current time information when it is decoded and is then clocked out of the time-keeping circuit 24 for the continuous time determination.
  • the second information determined by the decoder 15 instead of the usual (date) display with ordinal point 19 to present the synchronization process during the reception of the To be able to observe time information, as taken into account in FIG. 1 by an observation changeover switch 44 in the supply of the display control circuit 16.
  • the plausibility criterion is a defined time difference between currently decoded received time information and a reference time information obtained in the past or from the advanced time register 43.
  • the constellations of a receiver switch-on and switch-off without decoding a valid time information are recorded in an inhibit link gate 46 and added up by a counter 47, the current counter reading of which is shown numerically on the display 17 switched to transmitter display by correspondingly loading the display control circuit 16 '; For example, as a number of attempts to receive 48 with at least one of the digits that serve as the daily display D in the normal display 17 (as taken into account at the top left in FIG. 2). The display of the number of attempts to receive 48 therefore always remains "zero" if (in the reception area of the time information transmitter) each activation of the receiver 14 - be it manually or automatically - leads to the decoding of current time information.
  • the receiver 14 Every time the receiver 14 switches off, without it being possible to obtain confirmed, i.e. currently absolute, time information in the decoder connected downstream, the old time information, which is kept internally in register 43, is returned to the display 17 via the display control circuit 16. This ensures that a correct (even if not confirmed by radio) time display continues to occur even if, for example, reception and decoding of radio time information is currently not possible due to interference or a switched-off transmitter.
  • a transmitter for transmitting coded absolute time information relates this to a specific geographical time zone, regularly to the time zone in which it is operated. It can be assumed that in the mutually adjacent edges of the adjacent time zones, those transmitters can also be recorded with sufficient field strength for the operation of the receiver 14 via the antenna 12. However, that is no longer the case if the Radio clock 11 is operated beyond the time zones adjacent to the transmitter to which the receiver 14 is tuned.
  • the continuous time display 18, including the additional displays on the display 17, therefore only works from the register 43, which is internally kept up-to-date.
  • a manually operated zone switch 51 is provided, with which the register 43 operating the display control circuit 16 by full hours (without influencing the current minute and second performances; but taking into account any calendar change of the day) can be probed back and forth, for example by actuating pushbutton switches 52+, 52- which are recessed in the watch case 60.
  • this addition or subtraction of complete hours in the block diagram of FIG. 1 has been moved to an adaptation register 53 connected downstream of the time register 43.
  • one hour is deducted or added to the hourly information received for display.
  • this manual time zone adjustment is more than one time zone, that is to say relates to regions in which reliable reception of the transmitter can no longer be expected
  • the activation of the receiver 14 to relieve the power source 36 is blocked via a gate circuit 54. They are controlled by a comparator 55, which switches through the gate circuit 54 again when the manually effected hour change returns below plus or minus two. This results, for example, from a comparison of the hourly information in front of and behind the adaptation register 53.
  • the traversing of the electromechanical flaps or pointer display 18 via the increased setting frequency f2 cannot, however, take place at any desired speed for reasons of transmission technology; and if a mechanical rapid traverse is only possible in one direction, the changes of minus two time zones in a twelve-hour display 18, for example, require ten complete rotations of a minute hand coupled to the hour hand. So while the time zone change can be made quickly via the pushbutton switches 52, it can be irritating that the wake of the electromechanically advanced hands or numbers does not follow this in any way.
  • the antenna 12 of the radio clock 11 is expediently designed as a magnetic antenna, consisting of a flat coil 56 connected to the antenna line 13 on a flexible core 57, as described in more detail for example in DE-GM 88 15 967.
  • This antenna 12 can be drawn into a bracelet 58 and can be connected electrically and mechanically to the housing 60 of the radio-controlled wristwatch 11 by means of a combined plug-in and fastening device 59.
  • a hybrid watch i.e. with a combination of electromechanical display 18 and electro-optical display 17, the latter is preferably - contrary to the usual design of such hybrid watches - not below but above the electromechanical pointer display 18 arranged.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
EP91106884A 1990-05-04 1991-04-27 Horloge radio-commandée autonome Expired - Lifetime EP0455183B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9005073U 1990-05-04
DE9005073 1990-05-04

Publications (4)

Publication Number Publication Date
EP0455183A2 true EP0455183A2 (fr) 1991-11-06
EP0455183A3 EP0455183A3 (en) 1992-01-15
EP0455183B1 EP0455183B1 (fr) 1995-06-28
EP0455183B2 EP0455183B2 (fr) 2001-04-25

Family

ID=6853493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106884A Expired - Lifetime EP0455183B2 (fr) 1990-05-04 1991-04-27 Horloge radio-commandée autonome

Country Status (5)

Country Link
US (1) US5105396B1 (fr)
EP (1) EP0455183B2 (fr)
DE (2) DE9010270U1 (fr)
ES (1) ES2075257T3 (fr)
HK (1) HK73296A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553722A2 (fr) * 1992-01-28 1993-08-04 Junghans Uhren Gmbh Petite montre-radio autonome à affichage autonome, en particulier montre radio bracelet
DE4230531C1 (de) * 1992-09-12 1993-11-18 Braun Ag Funkuhr
EP0656572A1 (fr) * 1993-12-01 1995-06-07 Seiko Instruments Inc. Montre électronique corrigée par radio
EP0751444A1 (fr) * 1995-06-27 1997-01-02 Isa France S.A. Instrument horaire à affichage analogique, notamment une montre, une horloge ou une pendulette, et procédé de contrÔle de la mise à l'heure automatique de cet instrument
DE19540592A1 (de) * 1995-10-31 1997-05-15 Braun Ag Funkuhr
FR2748332A1 (fr) * 1996-05-02 1997-11-07 Reyser Paul Systeme d'antennes de reception pour signaux horaires
US6525995B1 (en) 1999-08-24 2003-02-25 Junghans Uhren Gmbh Method and apparatus for displaying local time on radio-controlled timepieces
DE102004004416A1 (de) * 2004-01-29 2005-08-18 Atmel Germany Gmbh Verfahren zur Ermittlung der Signalgüte eines gesendeten Zeitzeichensignals
US7486657B2 (en) 2003-07-31 2009-02-03 Atmel Germany Gmbh Radio controlled clock and method for retrieving time information from time signals

Families Citing this family (32)

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Publication number Priority date Publication date Assignee Title
DE9010813U1 (fr) * 1990-07-20 1991-11-14 Junghans Uhren Gmbh, 7230 Schramberg, De
KR950007971B1 (ko) * 1992-11-19 1995-07-21 삼성전자주식회사 무선호출 수신기의 타임 경보 방법
US5455807A (en) * 1993-08-18 1995-10-03 Seiko Corp. Time maintenance and display in a time keeping system including a time zone boundary
JPH1090440A (ja) * 1996-09-12 1998-04-10 Citizen Watch Co Ltd 太陽電池搭載の電子時計
US5982710A (en) * 1997-03-14 1999-11-09 Rawat; Prem P. Method and apparatus for providing time using cartesian coordinates
US6230027B1 (en) * 1997-06-17 2001-05-08 U.S. Philips Corporation Method of issuing a time information signal via a satellite station of a transmission system
WO1998058298A1 (fr) * 1997-06-18 1998-12-23 Idt-Lcd Holdings (Bvi) Ltd. (Idt-Bvi) Horloge a dispositif de projection
DE29718454U1 (de) * 1997-10-17 1999-02-11 Junghans Uhren Gmbh Solarbetriebene Funkuhr
US6269055B1 (en) * 1998-11-16 2001-07-31 Quartex, A Division Of Primex, Inc. Radio-controlled clock movement
EP1118915A4 (fr) * 1999-07-16 2005-03-23 Citizen Watch Co Ltd Montre
JP2003167073A (ja) * 2001-11-29 2003-06-13 Seiko Instruments Inc 電波修正装置及びこれを用いた電波修正時計
HK1050114A2 (en) * 2002-04-04 2003-05-16 Idt Lcd Holding Bvi Ltd Radio control clock
US7792121B2 (en) * 2003-01-03 2010-09-07 Microsoft Corporation Frame protocol and scheduling system
US7181701B2 (en) * 2003-01-03 2007-02-20 Microsoft Corporation Glanceable information system and method
US7113450B2 (en) * 2003-05-20 2006-09-26 Timex Group B.V. Wearable electronic device with multiple display functionality
US7333467B2 (en) * 2003-12-08 2008-02-19 Atmel Germany Gmbh Receiver circuit and method using selectively variable amplification for receiving time signals from different transmitters
DE102004004375B4 (de) * 2004-01-29 2019-08-08 Atmel Corp. Verfahren zur Gewinnung von Zeitinformationen und Funkuhr
DE102004004411B4 (de) * 2004-01-29 2015-08-20 Atmel Corp. Funkuhr und Verfahren zur Gewinnung von Zeitinformationen
DE102004005340A1 (de) * 2004-02-04 2005-09-01 Atmel Germany Gmbh Verfahren zur Gewinnung von Zeitinformationen, Empfängerschaltung und Funkuhr
DE102004026414A1 (de) * 2004-05-29 2005-12-22 Bayerische Motoren Werke Ag Uhr mit einem Anzeigefeld
US7593755B2 (en) * 2004-09-15 2009-09-22 Microsoft Corporation Display of wireless data
JP2007187504A (ja) * 2006-01-12 2007-07-26 Seiko Instruments Inc デジタル表示式電波修正時計及び該時計の標準電波受信方法
US7773041B2 (en) 2006-07-12 2010-08-10 Apple Inc. Antenna system
US20090207701A1 (en) * 2008-02-20 2009-08-20 Peter Jacques Date band watch
US9172139B2 (en) * 2009-12-03 2015-10-27 Apple Inc. Bezel gap antennas
US8270914B2 (en) * 2009-12-03 2012-09-18 Apple Inc. Bezel gap antennas
DE102010002702A1 (de) * 2010-03-09 2011-09-15 Robert Bosch Gmbh Elektrogerät, insbesondere Elektrohandwerkzeug
US9160056B2 (en) 2010-04-01 2015-10-13 Apple Inc. Multiband antennas formed from bezel bands with gaps
US8947303B2 (en) 2010-12-20 2015-02-03 Apple Inc. Peripheral electronic device housing members with gaps and dielectric coatings
US9246221B2 (en) 2011-03-07 2016-01-26 Apple Inc. Tunable loop antennas
US9166279B2 (en) 2011-03-07 2015-10-20 Apple Inc. Tunable antenna system with receiver diversity
US9350069B2 (en) 2012-01-04 2016-05-24 Apple Inc. Antenna with switchable inductor low-band tuning

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US4074515A (en) * 1975-07-15 1978-02-21 Kabushiki Kaisha Daini Seikosha Electronic timepiece with battery life display
DE2643250A1 (de) * 1976-09-25 1978-03-30 Braun Ag Zentralgesteuerte uhr
GB2007882A (en) * 1977-09-16 1979-05-23 Suwa Seikosha Kk Electronic timepiece
DE2802040A1 (de) * 1978-01-16 1979-07-19 Peter Gravenhorst Zeitzeichengesteuertes digitaluhrsystem mit hoher stoersicherheit
DE3015312A1 (de) * 1980-04-21 1981-10-22 Wolfgang Dr.-Ing. 6101 Groß-Bieberau Hilberg Qualitaetsindikator fuer den empfang bei funkuhren
EP0308881A2 (fr) * 1987-09-23 1989-03-29 Junghans Uhren Gmbh Montre commandée par radio
EP0372432A2 (fr) * 1988-12-08 1990-06-13 Junghans Uhren Gmbh Montre réceptrice autonome
DE8903342U1 (fr) * 1989-03-17 1990-07-19 Junghans Uhren Gmbh, 7230 Schramberg, De

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US4582434A (en) * 1984-04-23 1986-04-15 Heath Company Time corrected, continuously updated clock
DE3439638C1 (de) * 1984-10-30 1986-05-15 Gebrüder Junghans GmbH, 7230 Schramberg Autonome Funkuhr
DE3510861C2 (de) * 1984-11-09 1986-09-25 Gebrüder Junghans GmbH, 7230 Schramberg Anzeigestellungs-Detektionseinrichtung für eine Uhr, insbesondere eine Funkuhr
US4823328A (en) * 1987-08-27 1989-04-18 Conklin Charles C Radio signal controlled digital clock
DE8815967U1 (fr) * 1988-05-27 1989-09-21 Junghans Uhren Gmbh, 7230 Schramberg, De

Patent Citations (8)

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Publication number Priority date Publication date Assignee Title
US4074515A (en) * 1975-07-15 1978-02-21 Kabushiki Kaisha Daini Seikosha Electronic timepiece with battery life display
DE2643250A1 (de) * 1976-09-25 1978-03-30 Braun Ag Zentralgesteuerte uhr
GB2007882A (en) * 1977-09-16 1979-05-23 Suwa Seikosha Kk Electronic timepiece
DE2802040A1 (de) * 1978-01-16 1979-07-19 Peter Gravenhorst Zeitzeichengesteuertes digitaluhrsystem mit hoher stoersicherheit
DE3015312A1 (de) * 1980-04-21 1981-10-22 Wolfgang Dr.-Ing. 6101 Groß-Bieberau Hilberg Qualitaetsindikator fuer den empfang bei funkuhren
EP0308881A2 (fr) * 1987-09-23 1989-03-29 Junghans Uhren Gmbh Montre commandée par radio
EP0372432A2 (fr) * 1988-12-08 1990-06-13 Junghans Uhren Gmbh Montre réceptrice autonome
DE8903342U1 (fr) * 1989-03-17 1990-07-19 Junghans Uhren Gmbh, 7230 Schramberg, De

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553722A2 (fr) * 1992-01-28 1993-08-04 Junghans Uhren Gmbh Petite montre-radio autonome à affichage autonome, en particulier montre radio bracelet
EP0553722A3 (en) * 1992-01-28 1995-12-13 Junghans Uhren Gmbh Small autonomous radio timepiece with analogue display, in particular wristwatch radio
DE4230531C1 (de) * 1992-09-12 1993-11-18 Braun Ag Funkuhr
EP0656572A1 (fr) * 1993-12-01 1995-06-07 Seiko Instruments Inc. Montre électronique corrigée par radio
US5621703A (en) * 1993-12-01 1997-04-15 Seiko Instruments Inc. Radio wave-corrected timepiece
EP0751444A1 (fr) * 1995-06-27 1997-01-02 Isa France S.A. Instrument horaire à affichage analogique, notamment une montre, une horloge ou une pendulette, et procédé de contrÔle de la mise à l'heure automatique de cet instrument
DE19540592A1 (de) * 1995-10-31 1997-05-15 Braun Ag Funkuhr
FR2748332A1 (fr) * 1996-05-02 1997-11-07 Reyser Paul Systeme d'antennes de reception pour signaux horaires
US6525995B1 (en) 1999-08-24 2003-02-25 Junghans Uhren Gmbh Method and apparatus for displaying local time on radio-controlled timepieces
US7486657B2 (en) 2003-07-31 2009-02-03 Atmel Germany Gmbh Radio controlled clock and method for retrieving time information from time signals
DE102004004416A1 (de) * 2004-01-29 2005-08-18 Atmel Germany Gmbh Verfahren zur Ermittlung der Signalgüte eines gesendeten Zeitzeichensignals

Also Published As

Publication number Publication date
HK73296A (en) 1996-05-03
EP0455183B2 (fr) 2001-04-25
DE9010270U1 (fr) 1991-09-05
EP0455183B1 (fr) 1995-06-28
EP0455183A3 (en) 1992-01-15
ES2075257T3 (es) 1995-10-01
US5105396B1 (en) 1993-11-30
US5105396A (en) 1992-04-14
DE59105829D1 (de) 1995-08-03

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