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GB1338983A - Electronic watches - Google Patents

Electronic watches

Info

Publication number
GB1338983A
GB1338983A GB417272A GB417272A GB1338983A GB 1338983 A GB1338983 A GB 1338983A GB 417272 A GB417272 A GB 417272A GB 417272 A GB417272 A GB 417272A GB 1338983 A GB1338983 A GB 1338983A
Authority
GB
United Kingdom
Prior art keywords
cos
mos
pairs
inverters
input
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
GB417272A
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB1338983A publication Critical patent/GB1338983A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/15—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors
    • H03K5/15013—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs
    • H03K5/15026—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with asynchronously driven series connected output stages
    • H03K5/15033—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with asynchronously driven series connected output stages using a chain of bistable devices
    • 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
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electric Clocks (AREA)

Abstract

1338983 Semi-conductor circuits SUWA SEIKOSHA KK 28 Jan 1972 [10 Feb 1971] 4172/72 Heading H3T [Also in Division G3] An electronic watch includes binary counters, for dividing the output frequency, composed of COS/MOS integrated circuits having dual ORNAND gates and two inverters I 1 , I 2 . Fig. 2(a) shows a gate composed of COS/MOS with input and output voltages as in Fig. 2(b). In Fig. 3(a) three pairs of N channel MOS transistors, three pairs of P channel MOS transistors and two COS/MOS inverters I 1 , I 2 form a binary counter having input and output voltages as in Fig. 3(b).
GB417272A 1971-02-10 1972-01-28 Electronic watches Expired GB1338983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP522071 1971-02-10

Publications (1)

Publication Number Publication Date
GB1338983A true GB1338983A (en) 1973-11-28

Family

ID=11605098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB417272A Expired GB1338983A (en) 1971-02-10 1972-01-28 Electronic watches

Country Status (2)

Country Link
US (1) US3760580A (en)
GB (1) GB1338983A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH730874A4 (en) * 1974-05-29 1977-01-31
CH583483A5 (en) * 1975-09-17 1976-12-31 Centre Electron Horloger
CH607461A5 (en) * 1975-12-10 1978-12-29 Centre Electron Horloger
US4097764A (en) * 1977-03-18 1978-06-27 General Signal Corporation Fail-safe solid state logic
US7538590B2 (en) * 2005-07-18 2009-05-26 Micron Technology, Inc. Methods and apparatus for dividing a clock signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560998A (en) * 1968-10-16 1971-02-02 Hamilton Watch Co Electronically controlled timepiece using low power mos transistor circuitry
CH483754A (en) * 1968-11-11 1969-12-31 Centre Electron Horloger Frequency divider circuit
BE757117R (en) * 1969-10-31 1971-03-16 Centre Electron Horloger DIVIDER CIRCUIT
US3672155A (en) * 1970-05-06 1972-06-27 Hamilton Watch Co Solid state watch

Also Published As

Publication number Publication date
US3760580A (en) 1973-09-25

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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