EP1735667B1 - Montre-bracelet commandee par radio, munie de moyens pour decoder des signaux d'emetteurs de signaux horaires provenant de plusieurs fuseaux horaires - Google Patents

Montre-bracelet commandee par radio, munie de moyens pour decoder des signaux d'emetteurs de signaux horaires provenant de plusieurs fuseaux horaires Download PDF

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Publication number
EP1735667B1
EP1735667B1 EP05701016A EP05701016A EP1735667B1 EP 1735667 B1 EP1735667 B1 EP 1735667B1 EP 05701016 A EP05701016 A EP 05701016A EP 05701016 A EP05701016 A EP 05701016A EP 1735667 B1 EP1735667 B1 EP 1735667B1
Authority
EP
European Patent Office
Prior art keywords
time
radio
time signal
reception
stored
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.)
Active
Application number
EP05701016A
Other languages
German (de)
English (en)
Other versions
EP1735667A1 (fr
Inventor
Holger Rudolph
Günter Megner
Rüdiger Daut
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
Seiko Epson Corp
Original Assignee
Junghans Uhren GmbH
Seiko Epson Corp
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 Junghans Uhren GmbH, Seiko Epson Corp filed Critical Junghans Uhren GmbH
Priority to SI200531109T priority Critical patent/SI1735667T1/sl
Priority to PL05701016T priority patent/PL1735667T3/pl
Publication of EP1735667A1 publication Critical patent/EP1735667A1/fr
Application granted granted Critical
Publication of EP1735667B1 publication Critical patent/EP1735667B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G04R20/10—Tuning or receiving; Circuits therefor

Definitions

  • Radio-controlled wristwatch with means for decoding signals from time signal transmitters from several time zones.
  • the invention relates to a radio-controlled wristwatch with means for decoding signals of time signal transmitters from a plurality of time zones according to the features of the preamble of claim 1.
  • Radio-controlled clocks in which the time is displayed analogously to conventional handsets or digitally with a digital display and the information for the current time is obtained from received signals from time signal transmitters are well known.
  • the received signals of the time signal transmitters are radio frequency signals broadcast by local authorities of various countries to provide official local time information that enables individuals to synchronize their watches and timepieces.
  • Existing RF time signals include, for example, the DCF signal in Germany, the MSF signal in the United Kingdom, the WWVB signal in the United States, and the JJY40 signal and the JJY60 signal in Japan. These signals are amplitude modulated signals with different carrier frequencies and different data protocols.
  • Such radio-controlled watches are out for example WO 03 / 023526A and US-A-4582434 known.
  • the following table shows the currently known time signal transmitters country by country with their high-frequency signal code and their carrier frequencies: countries High-frequency code carrier frequencies Central Europe including France, Germany and Italy DCF 77.5 kHz United Kingdom MSF 60 kHz United States and Canada WWVB 60 kHz Japan (west side) JJY60 60 kHz Japan (middle and east side JJY40 40 kHz
  • radio controlled clocks are only suitable for receiving a single time signal transmitter and thus can not be used in different countries, i. in the range of different time zones, are used.
  • the DE 103 15 429 A1 already describes a radio-controlled clock that receive the time signal signals of different time signal transmitter in different countries and different time zones and thus radio controlled in different time zones can display the current time.
  • the radio-controlled clock has for this purpose a relatively voluminous housing, in which both the display unit and three different decoder for decoding the different time signal signals is housed. These decoders are controlled by a CPU control unit.
  • a first decoder is used to decode the DCF and MSF signals to decode the 77.5 kHz DCF radio signals and the 60 kHz MSF radio signals.
  • a second decoder is provided for decoding the WWVB radio signal at 60 kHz and a third decoder is for decoding the Japanese JJY radio signals at 60 kHz and 40 kHz, respectively.
  • the display device is an LCD display. To the housing different antenna modules can be connected from the outside. Depending on which antenna module is just connected, is attempted by the electronics of the radio clock to receive the associated timing signal and decode.
  • the problem with this radio clock is that the antenna modules must be replaced manually. For this, the operator has the choice between three antenna modules.
  • the first antenna module is designed to receive DCF RF time signals at carrier frequencies of 77.5 kHz.
  • the second antenna module is designed to receive MSF-WWVB-JJY60 RF timing signals at a carrier frequency of 60 kHz, regardless of the type of code selected, and the third antenna module is designed to carry JJY40 RF timing signals with carrier frequencies of 40 kHz can receive.
  • the manual change of the antenna modules is not very user-friendly.
  • the operator must always ensure that the right antenna module is connected to the radio clock in the respective reception area of a time signal transmitter.
  • a manual replacement of the antenna modules is very disturbing and also still space consuming, since all antenna modules must constantly be carried to ensure in the respective time zones and a radio signal reception of each time there active time transmitter.
  • the DE 198 08 431 A1 the applicant describes a radio clock, which is suitable for receiving different transmitter frequencies of different time signal transmitter and this provides a frequency switching by matching switching capacity at the antenna resonant circuit. Further details regarding the used radio clock and the possibility of which time signal transmitter are not to be taken from this document.
  • Radio controlled watches are to the knowledge of the Applicant of the Japanese. Company Citizen in use. However, the watches developed by this company can receive only the Japanese time signal transmitters JJY40 and JJY60 and thus only time transmitter within the Japanese time zone.
  • the Japanese company Casio have developed radio-controlled wristwatches that switch between the Japanese and the American time zone and thus between two time zones and should be able to receive the Japanese transmitters JJY40 and JJY60 and the US station WWVB.
  • the switching of the time signal transmitter to be received must be done manually by the watch carrier for these watches between the Japanese and the American time zone.
  • the present invention seeks to provide a radio-controlled wristwatch which radio-controlled displays the time around the world, provided that time signal transmitters can be received. In this case, a manual intervention of the watch carrier is avoided and a faster time signal reception can be achieved.
  • the invention is based essentially on the fact that a memory unit is provided in the radio-controlled wristwatch, in in which a table of at least four time signal transmitters from more than two time zones is stored, and by means of a control device reception attempts to the transmitters stored in the table are carried out automatically. Upon successful reception of a time-sign transmitter from the table, the associated decoded time is displayed analog or digital on the display of the wrist-watch.
  • the radio-controlled wristwatch is equipped for this purpose with a receiving device that can switch over switched crystals between the required carrier frequencies of the possible time signal transmitter.
  • the time signal transmitters stored in the table are grouped according to time zones. This has the advantage that in a previously determined time zone in which the radio-controlled wristwatch is located, only those time signal transmitters of this time zone are queried for possible successful reception attempts. A faster time signal transmitter reception is thereby ensured in comparison to the solution in which all time signal transmitters stored in the table are queried for possible receivable signals.
  • a quartz time base is arranged, which allows a quartz accurate display of the clock. Such quartz accurate display of the clock is necessary if no radio signals from time signal transmitters can be received.
  • FIG. 1 schematically shown in the block diagram of a radio-controlled wristwatch 20, which has an antenna 22 with downstream, switchable receiving device 24 for receiving signals from time signal transmitters 1, 2 ... 10 from different time zones A, B ... N.
  • the switchability of the receiving device 24 to different carrier frequencies is in FIG. 1 symbolically illustrated by switchable crystals 25.
  • the switching is controlled by a control device 28.
  • the output of the receiving device 24 is connected to a decoder 26, by means of which the received time signal signals can be decoded.
  • Information for a display 32 of the radio-controlled clock 20 is generated from the decoded time signals of the received signal.
  • the display can be made analogue by means of pointers or digitally by means of digital displays.
  • the control device 28 is connected to a memory device 30 in which, inter alia, a table with a plurality of information about different time signal transmitters are stored.
  • the control device 28 controls the receiving device 25 and the decoder 26 in a manner to be explained on the basis of this information stored in the table.
  • the radio-controlled wristwatch 20 has a switch 34 which is in contact with the control device 28. About this switch 34, an operator can set the time zone in which he is currently on the radio clock 20. The information about the correct time zone is advantageous in order, if necessary, to provide for reception of time signal signals faster than usual.
  • FIG. 1 Below are two more tables. On the left is a single-column table with M rows corresponding to memory locations. A plurality of time signal transmitters are sequentially stored in the M lines, for example in the order DCF, MSF, WBVB, JJY40, JJY60, X, Y, Z, VW etc.
  • a stored table according to the invention has eight rows and N columns.
  • the individual transmitters are filed in columns in the time zones A, B to N grouped.
  • time zone A which corresponds, for example, to the European time zone
  • the time signal transmitters DCF, MSF, XY are stored one after the other.
  • the other memory locations are still available in the left column for time zone A.
  • the time signal transmitters WWVB and Z are stored one after the other.
  • the remaining memory slots are free.
  • the rightmost column of the second embodiment e.g. for the Japanese time zone N three time signal transmitters are sequentially stored, namely JJY40, JJY60 and V.
  • the other memory locations are free and can be occupied if necessary, if, for example, additional time signal transmitters should start their operation.
  • FIG. 2 a first possible operation sequence for the operation of the radio-controlled wristwatch is illustrated by means of a foot chart.
  • the radio clock is technically designed so that you can select from several time signal transmitters for synchronization. Regardless of the time zone set, the radio clock attempts to receive one of the time signal transmitters stored in the table, worldwide.
  • the function starts as follows.
  • the receiver is turned on, for example, by inserting the battery or turning on the power.
  • reception will periodically occur at a certain time, e.g. two o'clock at night, activated to set the clock radio controlled or correct if necessary.
  • the time zone in which the radio-controlled clock is set expediently determined.
  • a query is made as to whether the time zone is e.g. is set to Japan or a corresponding longitude. If this is the case, the control device 28 queries whether signals of the time signal transmitter JJY40 are received. If reception is possible, the clock will be synchronized and the time on the display adjusted accordingly.
  • the receiver is turned off, for example, to be turned on again at certain intervals.
  • a reception attempt is made for the time signal transmitter JJY60. If reception is possible there, the clock is synchronized accordingly and the time is set. If reception of the time signal transmitter JJY60 is also not possible, the mentioned procedure is repeated until a timeout counter recognizes a predetermined number of attempts as failed. The receiver is then turned off and the old time from the time memory, which is provided for example by a quartz time base in the radio clock, displayed.
  • the control device (28) queries whether the time zone is set to DCF or a corresponding longitude (cf. Fig. 2b ). If this is the case, will queried whether the reception of the time signal transmitter DCF77 is possible. If reception is possible, the clock is synchronized accordingly and the time is set and then the receiver is switched off. If no reception is possible, the timeout counter mentioned above attempts to synchronize further to the reception of the time signal transmitter DCF (77) until a predetermined time. If no reception is ultimately possible, the receiver is switched off and the old time is displayed from the time memory.
  • the control device queries whether the time zone is set to WWVB and thus American time zone. If so, it is checked whether a reception of the time signal transmitter WWVB takes place. If reception is possible, the clock is synchronized and the corresponding time is displayed. Then the receiver is switched off. If no reception of the time signal transmitter WWVB is possible, the timeout counter is again increased until it is definitively determined that no reception of the time signal transmitter WWVB can take place.
  • the other time signal transmitters are polled in order and then examined whether a reception of a time signal transmitter is possible.
  • Fig. 3 another scheme is shown how the radio-controlled wristwatch can work. First, it is determined again whether the receiver is turned on. Then the time zone is determined. In the next step, it is asked whether any time signal transmitters are stored in the memory device 30. This is not the case, the receiver is already switched off and the "old time" in the time memory is displayed.
  • time signal transmitters are stored in the memory device 30, the first transmitter of this range is selected and a reception attempt is made for this transmitter. If reception is possible, this clock will synchronize the clock and set the time. Then the receiver is switched off. If no reception is possible with the first transmitter, the control device 28 selects the next permissible time signal transmitter in the memory device 30. A reception attempt is made for this next station. If reception is possible, the clock will be synchronized accordingly and the time set. If no reception is possible, switch to the next station, etc.
  • the corresponding time of the time signal transmitter is set on the radio-controlled clock.
  • the clock is displayed on the display of the radio-controlled wristwatch by means of the quartz time base and thus not radio-controlled.
  • Fig. 1 if no information about the current time zone is set on the clock, in the Fig. 1 Use the table in the lower left corner and query each possible time signal transmitter in turn. However, if the control device 30 of the radio-controlled clock 20 has received information about the time zone, for example via the switch 34, the memory device 28 can ensure that only those are available Time signal transmitters are queried, to which the switch 34 of the radio clock 20 is connected. This means that in the table of Fig. 1 bottom right only those time signal transmitters of a single column are queried.
  • FIG. 4 is still a more detailed flowchart too Fig. 3 shown that is self-explanatory.
  • the efficiency of the control device (28) is increased when it is ensured in new reception attempts that a reception is started with a time signal transmitter, in which a last synchronization of the clock could take place. If no synchronization is possible with this transmitter, the next transmitter is continued from the previous table. If synchronization was not possible with all listed transmitters, the reception block is aborted and the next receive block is restarted at a later time using the same procedure. But if a reception with a new station is possible is synchronized. The reception attempts are then started at the next reception block with this transmitter.

Claims (7)

  1. Bracelet-montre (20) radiocommandé comportant des moyens (26) pour décoder des signaux d'émetteurs de signes de temps (1 ...10) correspondant à plusieurs fuseaux horaires (A ...N) ainsi que des moyens pour afficher l'heure sur l'afficheur (32) de la montre-bracelet (20) en fonction d'un émetteur de signes de temps (1 ...10), reçu dans un fuseau horaire (A ...N),
    dans lequel
    une unité de mémoire (30) contient un tableau de plus de quatre émetteurs de signes de temps (1 ...10) de plus de deux fuseaux horaires (A ...N), et
    une installation de commande (28) est organisée pour qu'elle exécute automatiquement des essais de réception vers les émetteurs (1 ...10) enregistrés dans le tableau et en cas de réception réussie d'un émetteur de signes de temps (1 ...10) appartenant au tableau, on affiche le temps correspondant sur l'afficheur (32) de la montre-bracelet, caractérisé en ce que
    - les émetteurs de signes de temps (1 ...10) enregistrés dans le tableau, sont groupés selon les fuseaux horaires (A ...N),
    - une installation de réglage de fuseaux horaires (34) régle un fuseau horaire, et
    - l'installation de commande (28) est conçue pour que des essais de réception soient seulement effectués pour les émetteurs de signes de temps (1 ...10) groupés dans la zone de temps, dans laquelle se trouve l'installation de réglage de fuseaux horaires (34) de la montre-bracelet (20).
  2. Bracelet-montre radiocommandé selon la revendication 1, caractérisée en ce que
    si aucune information n'est réglée sur la montre dans le fuseau horaire instantané, on effectue des essais de réception à l'aide de l'installation de commande (28) pour tous les émetteurs de signes de temps (1 ...10) enregistrés dans le tableau.
  3. Bracelet-montre radiocommandé selon la revendication 2, caractérisé en ce qu'
    on effectue successivement les essais de réception pour tous les émetteurs de signes de temps (1 ...10) mémorisés dans le tableau.
  4. Bracelet-montre radiocommandé selon l'une des revendications 1 à 3,
    caractérisé en ce que
    l'installation de mémoire (30) enregistre une information indiquant avec quel émetteur de signe de temps (1 ...10), un essai de réception valable a été effectué en dernier lieu, et
    en fonction de cette information mémorisée, l'installation de commande (28) recommence un nouvel essai de réception avec réception de cet émetteur de signe de temps (1 ...10).
  5. Bracelet-montre radiocommandé selon l'une des revendications 1 à 4,
    caractérisé en ce que
    pour des essais de réception ayant échoués, l'affichage indiqué sur l'afficheur (32) du bracelet-montre (20), est déduit d'une base de temps de quartz dans le bracelet-montre (20).
  6. Bracelet-montre radiocommandé selon l'une des revendications 1 à 5,
    caractérisé en ce que
    l'affichage (32) est un cadran à chiffres, analogique.
  7. Bracelet-montre radiocommandé selon l'une des revendications 1 à 5,
    caractérisé en ce que
    l'afficheur (32) est un afficheur numérique.
EP05701016A 2004-04-15 2005-01-18 Montre-bracelet commandee par radio, munie de moyens pour decoder des signaux d'emetteurs de signaux horaires provenant de plusieurs fuseaux horaires Active EP1735667B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200531109T SI1735667T1 (sl) 2004-04-15 2005-01-18 Radijsko krmiljena ročna ura s sredstvi za dekodiranje signalov ki prihajajo od oddajnikov časovnih signalov iz več časovnih con
PL05701016T PL1735667T3 (pl) 2004-04-15 2005-01-18 Zegarek naręczny sterowany radiowo, z środkami do dekodowania sygnałów z urządzeń nadawczych czasu, z szeregu stref czasowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004018881A DE102004018881B4 (de) 2004-04-15 2004-04-15 Funkgesteuerte Armbanduhr mit Mitteln zum Dekodieren von Signalen von Zeitzeichensendern aus mehreren Zeitzonen
PCT/EP2005/000447 WO2005109120A1 (fr) 2004-04-15 2005-01-18 Montre-bracelet commandee par radio, munie de moyens pour decoder des signaux d'emetteurs de signaux horaires provenant de plusieurs fuseaux horaires

Publications (2)

Publication Number Publication Date
EP1735667A1 EP1735667A1 (fr) 2006-12-27
EP1735667B1 true EP1735667B1 (fr) 2010-06-16

Family

ID=34960005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05701016A Active EP1735667B1 (fr) 2004-04-15 2005-01-18 Montre-bracelet commandee par radio, munie de moyens pour decoder des signaux d'emetteurs de signaux horaires provenant de plusieurs fuseaux horaires

Country Status (10)

Country Link
US (1) US20070201313A1 (fr)
EP (1) EP1735667B1 (fr)
JP (1) JP2007532892A (fr)
CN (1) CN1930534A (fr)
AT (1) ATE471539T1 (fr)
DE (2) DE102004018881B4 (fr)
DK (1) DK1735667T3 (fr)
PL (1) PL1735667T3 (fr)
SI (1) SI1735667T1 (fr)
WO (1) WO2005109120A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006177927A (ja) * 2004-11-25 2006-07-06 Seiko Instruments Inc 電波修正時計
JP4322786B2 (ja) 2004-11-29 2009-09-02 Ｏｋｉセミコンダクタ株式会社 複数標準電波のデコード方法及び標準電波受信装置
KR100744300B1 (ko) * 2006-02-10 2007-07-30 삼성전자주식회사 시각 정보 관리 장치 및 방법
JP4650467B2 (ja) * 2007-09-26 2011-03-16 セイコーエプソン株式会社 時刻修正装置および時刻修正装置付き計時装置
JP5365012B2 (ja) * 2008-01-29 2013-12-11 セイコーエプソン株式会社 衛星信号受信装置および衛星信号受信装置の制御方法
US20100165795A1 (en) * 2008-12-30 2010-07-01 Lifescan Scotland Ltd. Medical device with automatic time and date correction
US20110051560A1 (en) * 2009-09-02 2011-03-03 Kam Kwong Allen Wong Remote automatic setting of clock radio
JP5936150B2 (ja) * 2014-03-18 2016-06-15 カシオ計算機株式会社 電子機器および腕時計

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US4582434A (en) * 1984-04-23 1986-04-15 Heath Company Time corrected, continuously updated clock
JPH08431U (ja) * 1992-10-23 1996-02-27 シチズン時計株式会社 多機能アナログ腕時計のモード切り換え構造
DE4446568C2 (de) * 1994-12-24 1999-03-11 Telefunken Microelectron Autonome Funkuhr mit automatischer Zeitzonenanpassung
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JPH11308135A (ja) * 1998-04-24 1999-11-05 Sony Corp 受信機
JP2002296374A (ja) * 2001-03-30 2002-10-09 Seiko Clock Inc 時刻情報取得方法、時刻情報取得装置および電波修正時計
JP3779899B2 (ja) * 2001-08-31 2006-05-31 リズム時計工業株式会社 自動修正時計
CN1554038A (zh) * 2001-09-10 2004-12-08 西铁城钟表株式会社 电波校正时钟
JP2003270370A (ja) * 2002-03-15 2003-09-25 Casio Comput Co Ltd 時刻データ受信装置、及び時刻データ修正方法
JP3632674B2 (ja) * 2002-03-25 2005-03-23 セイコーエプソン株式会社 電波修正時計および電波修正時計の制御方法
HK1050114A2 (en) * 2002-04-04 2003-05-16 Idt Lcd Holding Bvi Ltd Radio control clock
JP3502376B2 (ja) * 2002-04-17 2004-03-02 シチズン時計株式会社 電波受信機能付き電子時計
JP2004198290A (ja) * 2002-12-19 2004-07-15 Casio Comput Co Ltd 時刻データ送信装置
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JP4679829B2 (ja) * 2004-03-31 2011-05-11 シチズンホールディングス株式会社 電波修正時計及びその制御方法

Also Published As

Publication number Publication date
DK1735667T3 (da) 2010-09-06
CN1930534A (zh) 2007-03-14
WO2005109120A1 (fr) 2005-11-17
US20070201313A1 (en) 2007-08-30
SI1735667T1 (sl) 2010-11-30
DE102004018881A1 (de) 2005-11-10
DE102004018881B4 (de) 2006-03-02
ATE471539T1 (de) 2010-07-15
PL1735667T3 (pl) 2010-11-30
DE502005009758D1 (de) 2010-07-29
JP2007532892A (ja) 2007-11-15
EP1735667A1 (fr) 2006-12-27

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