EP0724205A3 - Watch with a radio signal controlled correction function - Google Patents

Watch with a radio signal controlled correction function Download PDF

Info

Publication number
EP0724205A3
EP0724205A3 EP96300466A EP96300466A EP0724205A3 EP 0724205 A3 EP0724205 A3 EP 0724205A3 EP 96300466 A EP96300466 A EP 96300466A EP 96300466 A EP96300466 A EP 96300466A EP 0724205 A3 EP0724205 A3 EP 0724205A3
Authority
EP
European Patent Office
Prior art keywords
watch
radio signal
correction function
signal controlled
controlled correction
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
EP96300466A
Other languages
German (de)
French (fr)
Other versions
EP0724205B1 (en
EP0724205A2 (en
Inventor
Tadashi Yasuoka
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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
Priority claimed from JP1165095A external-priority patent/JPH08201546A/en
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of EP0724205A2 publication Critical patent/EP0724205A2/en
Publication of EP0724205A3 publication Critical patent/EP0724205A3/en
Application granted granted Critical
Publication of EP0724205B1 publication Critical patent/EP0724205B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP96300466A 1995-01-27 1996-01-24 Watch with a radio signal controlled correction function Expired - Lifetime EP0724205B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP11650/95 1995-01-27
JP1165095 1995-01-27
JP1165095A JPH08201546A (en) 1995-01-27 1995-01-27 Clock with radio-wave correction function
JP317725/95 1995-12-06
JP31772595 1995-12-06
JP31772595 1995-12-06

Publications (3)

Publication Number Publication Date
EP0724205A2 EP0724205A2 (en) 1996-07-31
EP0724205A3 true EP0724205A3 (en) 1997-05-02
EP0724205B1 EP0724205B1 (en) 2000-04-05

Family

ID=26347122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96300466A Expired - Lifetime EP0724205B1 (en) 1995-01-27 1996-01-24 Watch with a radio signal controlled correction function

Country Status (2)

Country Link
EP (1) EP0724205B1 (en)
DE (1) DE69607499T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1168114A3 (en) * 2000-06-13 2004-07-28 Max Co., Ltd. Time recorder
JP2004069679A (en) * 2002-06-14 2004-03-04 Seiko Epson Corp Radio controlled timepiece, and control method thereof
HK1195444A2 (en) * 2014-03-06 2014-12-19 Yip Kin Lee Rds time display device
JP7143708B2 (en) * 2018-09-28 2022-09-29 セイコーエプソン株式会社 electronic clock

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008898A1 (en) * 1990-03-20 1991-10-10 Forschungsgesellschaft Fuer Fe Electronic time indicating hands position memory - retains number of forwarding steps if working voltage drops or fails in radio-controlled clock
JPH06174864A (en) * 1992-12-03 1994-06-24 Seikosha Co Ltd Clock corrected by radio wave
EP0657794A2 (en) * 1993-12-07 1995-06-14 Casio Computer Company Limited Time date receiving apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008898A1 (en) * 1990-03-20 1991-10-10 Forschungsgesellschaft Fuer Fe Electronic time indicating hands position memory - retains number of forwarding steps if working voltage drops or fails in radio-controlled clock
JPH06174864A (en) * 1992-12-03 1994-06-24 Seikosha Co Ltd Clock corrected by radio wave
EP0657794A2 (en) * 1993-12-07 1995-06-14 Casio Computer Company Limited Time date receiving apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 510 (P - 1804) 26 September 1994 (1994-09-26) *

Also Published As

Publication number Publication date
EP0724205B1 (en) 2000-04-05
EP0724205A2 (en) 1996-07-31
DE69607499T2 (en) 2000-10-19
DE69607499D1 (en) 2000-05-11

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