GB1524752A - Digital electronic watch - Google Patents

Digital electronic watch

Info

Publication number
GB1524752A
GB1524752A GB41755/76A GB4175576A GB1524752A GB 1524752 A GB1524752 A GB 1524752A GB 41755/76 A GB41755/76 A GB 41755/76A GB 4175576 A GB4175576 A GB 4175576A GB 1524752 A GB1524752 A GB 1524752A
Authority
GB
United Kingdom
Prior art keywords
alarm
display
circuit
time
counter
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
GB41755/76A
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 JP50123012A external-priority patent/JPS5246865A/ja
Priority claimed from JP12301075A external-priority patent/JPS5246863A/ja
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of GB1524752A publication Critical patent/GB1524752A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0047—Details electrical, e.g. selection or application of the operating voltage
    • G04G9/0052—Details electrical, e.g. selection or application of the operating voltage using means to adjust the display in accordance with the ambient light, e.g. switching or controlling a supplementary light source
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
GB41755/76A 1975-10-13 1976-10-07 Digital electronic watch Expired GB1524752A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP50123012A JPS5246865A (en) 1975-10-13 1975-10-13 Digital electronic clock
JP12301075A JPS5246863A (en) 1975-10-13 1975-10-13 Digital alarm clock

Publications (1)

Publication Number Publication Date
GB1524752A true GB1524752A (en) 1978-09-13

Family

ID=26460030

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41755/76A Expired GB1524752A (en) 1975-10-13 1976-10-07 Digital electronic watch

Country Status (9)

Country Link
US (1) US4091611A (https=)
BR (1) BR7606834A (https=)
CA (1) CA1086967A (https=)
CH (1) CH622159GA3 (https=)
DE (1) DE2646222A1 (https=)
FR (1) FR2328238A1 (https=)
GB (1) GB1524752A (https=)
HK (1) HK88679A (https=)
IT (1) IT1074715B (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5473081A (en) * 1977-11-22 1979-06-12 Seiko Epson Corp Fully electronic watch with lamp
JPS55142273A (en) * 1979-04-24 1980-11-06 Citizen Watch Co Ltd Electronic watch
DE3247021A1 (de) * 1982-12-18 1984-06-20 Wehrle Uhrenfabrik GmbH, 7741 Schönwald Uhr mit weck- und schlagwerk
KR960009878B1 (ko) * 1992-09-03 1996-07-24 요시무라 시로 알람 시계

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1367247A (en) * 1971-02-18 1974-09-18 Suwa Seikosha Kk Electronic timepieces
US3727395A (en) * 1972-05-19 1973-04-17 R Baylor Clock actuated awakening device
US3898790A (en) * 1972-11-09 1975-08-12 Citizen Watch Co Ltd Battery-driven watch with battery consumption display alarm
JPS50133864A (https=) * 1974-04-08 1975-10-23

Also Published As

Publication number Publication date
DE2646222A1 (de) 1977-04-21
CA1086967A (en) 1980-10-07
US4091611A (en) 1978-05-30
IT1074715B (it) 1985-04-20
CH622159GA3 (https=) 1981-03-31
FR2328238A1 (fr) 1977-05-13
BR7606834A (pt) 1977-08-30
HK88679A (en) 1980-01-04
FR2328238B1 (https=) 1980-06-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19961006