GB1445600A - Method of and system for determining the rate of an electronic timepiece - Google Patents

Method of and system for determining the rate of an electronic timepiece

Info

Publication number
GB1445600A
GB1445600A GB5973873A GB5973873A GB1445600A GB 1445600 A GB1445600 A GB 1445600A GB 5973873 A GB5973873 A GB 5973873A GB 5973873 A GB5973873 A GB 5973873A GB 1445600 A GB1445600 A GB 1445600A
Authority
GB
United Kingdom
Prior art keywords
divider
watch
output
frequency
display
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.)
Expired
Application number
GB5973873A
Other languages
English (en)
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
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of GB1445600A publication Critical patent/GB1445600A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • G04D7/1214—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/002—Electrical measuring and testing apparatus
    • G04D7/003—Electrical measuring and testing apparatus for electric or electronic clocks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
GB5973873A 1973-01-10 1973-12-27 Method of and system for determining the rate of an electronic timepiece Expired GB1445600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP579173A JPS5331631B2 (US06330241-20011211-M00004.png) 1973-01-10 1973-01-10

Publications (1)

Publication Number Publication Date
GB1445600A true GB1445600A (en) 1976-08-11

Family

ID=11620897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5973873A Expired GB1445600A (en) 1973-01-10 1973-12-27 Method of and system for determining the rate of an electronic timepiece

Country Status (7)

Country Link
US (1) US3946591A (US06330241-20011211-M00004.png)
JP (1) JPS5331631B2 (US06330241-20011211-M00004.png)
CH (1) CH619102B (US06330241-20011211-M00004.png)
DE (1) DE2400603C3 (US06330241-20011211-M00004.png)
FR (1) FR2324043A1 (US06330241-20011211-M00004.png)
GB (1) GB1445600A (US06330241-20011211-M00004.png)
HK (1) HK44777A (US06330241-20011211-M00004.png)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5098368A (US06330241-20011211-M00004.png) * 1973-12-26 1975-08-05
JPS50127667A (US06330241-20011211-M00004.png) * 1974-03-27 1975-10-07
JPS5144961A (ja) * 1974-10-16 1976-04-16 Seiko Instr & Electronics Denkaikudogatahyojisochino hyojijikokusokuteisochi
JPS5170569U (US06330241-20011211-M00004.png) * 1974-10-25 1976-06-03
CH586932B5 (US06330241-20011211-M00004.png) * 1974-10-30 1977-04-15 Suisse Horlogerie
JPS5188257A (en) * 1975-01-31 1976-08-02 Denshidokeino kankyuchoseisochi
JPS528863A (en) * 1975-07-09 1977-01-24 Ricoh Elemex Corp Pace detector for an electronic clock
US4078420A (en) * 1976-02-27 1978-03-14 Time Computer, Inc. Digital watch analyzer
JPS52157862U (US06330241-20011211-M00004.png) * 1976-05-24 1977-11-30
JPS53107366A (en) * 1977-03-01 1978-09-19 Citizen Watch Co Ltd Electronic watch having matrix drive display
JPS5475768U (US06330241-20011211-M00004.png) * 1978-10-27 1979-05-29
JPS55116291A (en) * 1979-02-28 1980-09-06 Seiko Epson Corp Electronic wrist watch with alarm
US4403869A (en) * 1980-08-18 1983-09-13 Timex Corporation Electro-optic identifiction code system in a timepiece
WO2021146596A1 (en) * 2020-01-16 2021-07-22 Matthew Hartensveld Capacitive control of electrostatic field effect optoelectronic device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049315B (US06330241-20011211-M00004.png) * 1952-04-09 1959-01-22
US2931217A (en) * 1955-10-27 1960-04-05 William K Squires Electronic timing apparatus
GB1033824A (en) * 1961-07-26 1966-06-22 Altair Electronics Ltd Improvements in devices for checking the accuracy of watches, clocks and like timepieces
DE1548092A1 (de) * 1966-10-13 1970-04-02 Reinhard Fabian Zeitwaage
US3756013A (en) * 1970-05-06 1973-09-04 Hmw Industries Solid state watch
US3809994A (en) * 1972-06-19 1974-05-07 Texas Instruments Inc Low power dc-dc converter employing intermittent bursts of blocking oscillations
US3811314A (en) * 1972-09-06 1974-05-21 A Anouchi Time-interval rate meter for time measuring devices and method for checking time pieces

Also Published As

Publication number Publication date
JPS4994363A (US06330241-20011211-M00004.png) 1974-09-07
US3946591A (en) 1976-03-30
CH619102GA3 (US06330241-20011211-M00004.png) 1980-09-15
DE2400603A1 (de) 1974-07-11
DE2400603C3 (de) 1978-06-22
DE2400603B2 (de) 1977-11-03
FR2324043A1 (fr) 1977-04-08
CH619102B (de)
JPS5331631B2 (US06330241-20011211-M00004.png) 1978-09-04
FR2324043B1 (US06330241-20011211-M00004.png) 1979-06-29
HK44777A (en) 1977-09-09

Similar Documents

Publication Publication Date Title
GB1445600A (en) Method of and system for determining the rate of an electronic timepiece
GB1342164A (en) Solid state watch
GB1464976A (en) Electronically controlled timepiece using liquid crystal display elements
US3802182A (en) Timepiece with flickering digital display
GB1525520A (en) Electro-optical display device using a liquid crystal cel
GB2009975A (en) Alarm electronic timepieces
GB1523692A (en) Electro-optical display apparatus
JPS5732469B2 (US06330241-20011211-M00004.png)
GB1409006A (en) Electronic timepiece
CH607603B (fr) Piece d'horlogerie electronique.
GB1515400A (en) Electronic timepieces
GB1445811A (en) Display device transport system including a track and a megnetically guided suspended vehicle
US4242681A (en) Driving system for display
GB2047442A (en) Electronic timepiece
US4060974A (en) Method and apparatus for driving electrochromic display device
US3937049A (en) Monitoring system for digital electronic timepiece
GB1595842A (en) Guest-host liquid crystal display device system and its application
GB1479643A (en) Liquid-crystal display device
US3903473A (en) Phase locking circuits utilizing bridge controlled clock with feedback
JPS539174A (en) Battery life display device in electronic watch
JPS5481878A (en) Electronic watch
US4201038A (en) Alarm electronic watch
GB1534330A (en) Electronic timepieces with digital displays
JP2959002B2 (ja) 時計表示装置
JPH0224144Y2 (US06330241-20011211-M00004.png)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee