GB1462898A – Electronic timepiece
– Google Patents
GB1462898A – Electronic timepiece
– Google Patents
Electronic timepiece
Info
Publication number
GB1462898A
GB1462898A
GB5464674A
GB5464674A
GB1462898A
GB 1462898 A
GB1462898 A
GB 1462898A
GB 5464674 A
GB5464674 A
GB 5464674A
GB 5464674 A
GB5464674 A
GB 5464674A
GB 1462898 A
GB1462898 A
GB 1462898A
Authority
GB
United Kingdom
Prior art keywords
display
circuitry
motor
date
seconds
Prior art date
1974-01-14
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
GB5464674A
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.)
Zenith Electronics LLC
Original Assignee
Zenith Radio 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.)
1974-01-14
Filing date
1974-12-18
Publication date
1977-01-26
1974-12-18
Application filed by Zenith Radio Corp
filed
Critical
Zenith Radio Corp
1977-01-26
Publication of GB1462898A
publication
Critical
patent/GB1462898A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G04—HOROLOGY
G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
G04C17/00—Indicating the time optically by electric means
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
G04C3/008—Mounting, assembling of components
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
G—PHYSICS
G04—HOROLOGY
G04G—ELECTRONIC TIME-PIECES
G04G9/00—Visual time or date indication means
G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
G04G9/087—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques provided with means for displaying at will a time indication or a date or a part thereof
Abstract
1462898 Electronic watches ZENITH RADIO CORP 18 Dec 1974 [14 Jan 1974] 54646/74 Heading G3T In a watch having a stepping motor 32 which receives pulses, e.g. from a quartz crystal oscillator 24, and drives minute and hour hands 33, 34, a two-digit electro-optical display 18 is energized via control circuitry 54 and a manually operable demand switch 66 to display a further timedependent function such as seconds or the date. The motor 32 thus receives only one pulse per minute and energization of the display 18, which is of l.e.d. type, is arranged to illuminate the hands. The display 18 may alternatively be of liquid crystal type. In the watch shown the display 18 is used for the date and an intermittently flashing marker 64 shows the seconds. Two cells 20, 22 of different size are connected in series to provide sufficient voltage for the l.e.d. display, and the larger cell 20 alone supplies the circuitry. The motor 32 may be pulsed from the cell 20 or both cells. The circuitry 54, divider 26, and counters 28, 55 are combined in an I.C. 57′.
GB5464674A
1974-01-14
1974-12-18
Electronic timepiece
Expired
GB1462898A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US432935A
US3911665A
(en)
1974-01-14
1974-01-14
Electronic timepiece having complementary electro-optical and electro-mechanical displays
Publications (1)
Publication Number
Publication Date
GB1462898A
true
GB1462898A
(en)
1977-01-26
Family
ID=23718167
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5464674A
Expired
GB1462898A
(en)
1974-01-14
1974-12-18
Electronic timepiece
Country Status (5)
Country
Link
US
(1)
US3911665A
(en)
JP
(1)
JPS50108964A
(en)
CA
(1)
CA1028156A
(en)
CH
(2)
CH594930B
(en)
GB
(1)
GB1462898A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2804041A1
(en)
*
1978-01-31
1979-08-02
Junghans Gmbh Geb
ELECTRONIC CLOCK
Families Citing this family (34)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3968641A
(en)
*
1975-05-12
1976-07-13
Hughes Aircraft Company
Digital watch with oscillator/divider power selection circuitry
US4009566A
(en)
*
1975-05-27
1977-03-01
Hughes Aircraft Company
Digital watch with liquid crystal and sequentially read out light emitting diode displays
JPS5233570A
(en)
*
1975-09-09
1977-03-14
Seiko Instr & Electronics Ltd
Drive circuit for luminous body for illumination for liquid crystal el ectronic watch
JPS52111757A
(en)
*
1976-03-16
1977-09-19
Citizen Watch Co Ltd
Electroinc watch
DE2730069A1
(en)
*
1977-07-02
1979-01-11
Braun Ag
TIMEPIECE WITH A DISPLAY DEVICE
DE2732877C3
(en)
*
1977-07-21
1984-10-25
Braun Ag, 6000 Frankfurt
Timepiece with a display device
US4264970A
(en)
*
1977-10-28
1981-04-28
Citizen Watch Company Limited
Liquid crystal display cell for an electronic timepiece
US4245338A
(en)
*
1977-11-10
1981-01-13
Citizen Watch Company Limited
Time correction system for an electronic timepiece
US4258431A
(en)
*
1977-12-09
1981-03-24
Citizen Watch Co., Ltd.
Electronic timepiece having an analog display device and a digital display device
US4246602A
(en)
*
1977-12-09
1981-01-20
Citizen Watch Company Limited
Electronic timepiece
DE2804013C2
(en)
*
1978-01-31
1980-03-13
Gebrueder Junghans Gmbh, 7230 Schramberg
Electronic clock
DE2910736C3
(en)
*
1978-03-29
1982-02-18
Société Suisse pour l’Industrie Horlogère Management Services S.A., Biel
Clock with analog and digital display
JPS54130163A
(en)
*
1978-03-31
1979-10-09
Citizen Watch Co Ltd
Electronic watch
US4290131A
(en)
*
1978-04-06
1981-09-15
Citizen Watch Company Limited
Electronic timepiece
DE2821619C3
(en)
*
1978-05-18
1981-05-21
Gebrüder Junghans GmbH, 7230 Schramberg
Electronic clock with analog display and hands and liquid crystal display unit
US4228648A
(en)
*
1978-10-11
1980-10-21
Societe Suisse Pour L’industrie Horlogere Management Services S.A.
Hour hand corrector for dual display timepiece
US4320479A
(en)
*
1978-12-29
1982-03-16
Citizen Watch Co., Ltd.
Analogue electronic timepiece with an alarm device
US4312056A
(en)
*
1979-01-17
1982-01-19
Citizen Watch Company Limited
Composite display type electronic timepiece
CH625387B
(en)
*
1979-06-01
Ebauches Electroniques Sa
ELECTRONIC WATCH.
CH630219B
(en)
*
1979-06-01
Ebauches Electroniques Sa
ELECTRONIC WATCH.
CH631320B
(en)
*
1979-06-13
Suisse Horlogerie
DISPLAY PROCESS FOR A PIECE OF WATCHMAKING INCLUDING THEIMULTANEOUS EXCITATION OF TWO SUPERIMPOSED CELLS.
CH629064B
(en)
*
1979-06-28
Ebauches Sa
ELECTRONIC WATCH WITH DIGITAL AUXILIARY DISPLAY.
US4236239A
(en)
*
1979-07-06
1980-11-25
Societe Suisse Pour L’industrie Horlogere Management Services S.A.
Electronic timepiece comprising two different displays
US4253173A
(en)
*
1979-10-15
1981-02-24
Societe Suisse Pour L’industrie Horlogere Management Services S.A.
Dual display synchronization system for a timepiece
CH649189GA3
(en)
*
1981-12-28
1985-05-15
CH668350GA3
(en)
*
1987-05-22
1988-12-30
Electric timepiece with inter module connection driving seconds hand – has gearing for centre second-hand wheel in one module rotated by motor in other module
DE9200950U1
(en)
*
1992-01-28
1993-05-27
Junghans Uhren Gmbh, 7230 Schramberg, De
US6084828A
(en)
*
1998-11-05
2000-07-04
Fossil, Inc.
Timepiece and chronometer with overlapping, separately driven analog and digital displays
TR200001808T1
(en)
1998-11-05
2001-07-23
Fossil Inc.
Overlapping individually operated analog and digital display clock and stopwatch.
WO2000062132A1
(en)
1999-04-12
2000-10-19
Quartex
Clockworks, timepiece and method for operating the same
MXPA02003689A
(en)
*
2002-03-01
2004-04-05
Fossil Inc
Improved timepiece.
DE05405440T1
(en)
*
2005-07-15
2007-09-06
Rolex Sa
Gearing with error compensation for precision mechanisms
US20080013409A1
(en)
*
2006-07-11
2008-01-17
Bland Diarmuid John St Cullom
Timepiece with overlapping, separately driven analog and mechanical functionality
KR20170039388A
(en)
*
2015-10-01
2017-04-11
엘지전자 주식회사
Electronic device
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2542021A
(en)
*
1946-07-16
1951-02-20
Fox Benjamin
Electronic display system
US3668861A
(en)
*
1970-11-17
1972-06-13
Suwa Seikosha Kk
Solid state electronic watch
GB1349209A
(en)
*
1971-02-25
1974-04-03
Suwa Seikosha Kk
Electronic timepiece
US3747322A
(en)
*
1971-05-20
1973-07-24
Hmw Industries
Light control for timing displays
1974
1974-01-14
US
US432935A
patent/US3911665A/en
not_active
Expired – Lifetime
1974-11-21
CA
CA214,384A
patent/CA1028156A/en
not_active
Expired
1974-12-18
GB
GB5464674A
patent/GB1462898A/en
not_active
Expired
1975
1975-01-13
CH
CH35475A
patent/CH594930B/en
not_active
IP Right Cessation
1975-01-13
JP
JP50006211A
patent/JPS50108964A/ja
active
Pending
1975-01-13
CH
CH35475D
patent/CH35475A4/xx
unknown
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2804041A1
(en)
*
1978-01-31
1979-08-02
Junghans Gmbh Geb
ELECTRONIC CLOCK
Also Published As
Publication number
Publication date
CH35475A4
(en)
1977-02-15
US3911665A
(en)
1975-10-14
JPS50108964A
(en)
1975-08-27
CH594930B
(en)
1978-01-31
CA1028156A
(en)
1978-03-21
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Legal Events
Date
Code
Title
Description
1977-06-10
PS
Patent sealed [section 19, patents act 1949]
1979-07-18
PCNP
Patent ceased through non-payment of renewal fee
