IT952693B - ELECTRONIC WATCH MOVEMENT - Google Patents

ELECTRONIC WATCH MOVEMENT

Info

Publication number
IT952693B
IT952693B IT49684/72A IT4968472A IT952693B IT 952693 B IT952693 B IT 952693B IT 49684/72 A IT49684/72 A IT 49684/72A IT 4968472 A IT4968472 A IT 4968472A IT 952693 B IT952693 B IT 952693B
Authority
IT
Italy
Prior art keywords
electronic watch
watch movement
movement
electronic
watch
Prior art date
Application number
IT49684/72A
Other languages
Italian (it)
Original Assignee
Ebauches Sa
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 Ebauches Sa filed Critical Ebauches Sa
Application granted granted Critical
Publication of IT952693B publication Critical patent/IT952693B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
    • 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
    • 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
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Electric Clocks (AREA)
IT49684/72A 1971-04-22 1972-04-17 ELECTRONIC WATCH MOVEMENT IT952693B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH585271A CH540520A (en) 1971-04-22 1971-04-22 Electronic clock movement

Publications (1)

Publication Number Publication Date
IT952693B true IT952693B (en) 1973-07-30

Family

ID=4300378

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49684/72A IT952693B (en) 1971-04-22 1972-04-17 ELECTRONIC WATCH MOVEMENT

Country Status (7)

Country Link
US (1) US3812669A (en)
JP (1) JPS5625636B1 (en)
CH (2) CH540520A (en)
DE (1) DE2219493C3 (en)
FR (1) FR2133872B1 (en)
GB (1) GB1370564A (en)
IT (1) IT952693B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967442A (en) * 1973-02-01 1976-07-06 Berney Jean Claude Electric watch having an electromechanical movement including a correction mechanism for small errors
CH585426B5 (en) * 1973-02-27 1977-02-28 Ebauches Sa
US4062178A (en) * 1973-04-19 1977-12-13 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
JPS5751079B2 (en) * 1973-04-25 1982-10-30
JPS5031864A (en) * 1973-07-20 1975-03-28
GB1488914A (en) * 1973-12-19 1977-10-19 Citizen Watch Co Ltd Electronic timepiece
JPS50145269A (en) * 1974-05-14 1975-11-21
US4162608A (en) * 1974-06-05 1979-07-31 Kabushiki Kaisha Suwa Seikosha Electronic timepiece frequency regulating circuit
JPS5113279A (en) * 1974-07-11 1976-02-02 Suwa Seikosha Kk
JPS5614007B2 (en) * 1974-08-19 1981-04-01
JPH0310916B2 (en) * 1974-10-31 1991-02-14 Citizen Watch Co Ltd
JPS5170676A (en) * 1974-12-17 1976-06-18 Casio Computer Co Ltd
JPS6024433B2 (en) * 1975-08-01 1985-06-12 シチズン時計株式会社 clock circuit
DE2728525C3 (en) * 1976-06-24 1981-03-19 Casio Computer Co., Ltd., Tokyo Electronic clock
CH621036B (en) * 1977-02-28 Berney Sa Jean Claude INTEGRATED CIRCUIT FOR WATCHMAKING PART.
JPS6039193B2 (en) * 1977-10-18 1985-09-04 セイコーエプソン株式会社 electronic clock
JPS54105580A (en) * 1978-02-07 1979-08-18 Seiko Epson Corp Crystal oscillation type wristwatch
JPS554556A (en) * 1978-06-27 1980-01-14 Seiko Instr & Electronics Ltd Switch structure of electronic watche
JPS6344872Y2 (en) 1980-06-03 1988-11-21
DE3021863C2 (en) * 1980-06-11 1985-03-21 Vdo Adolf Schindling Ag, 6000 Frankfurt Electronic clock with a time base and temperature compensation circuitry
US4608706A (en) * 1983-07-11 1986-08-26 International Business Machines Corporation High-speed programmable timing generator
FR2669791B1 (en) * 1990-11-27 1994-12-09 Met METHOD FOR CORRECTING THE SYSTEMIC DRIFT OF PILOT CLOCKS BY AN OSCILLATOR AND ITS IMPLEMENTING DEVICE.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230383A (en) * 1962-03-12 1966-01-18 Bunker Ramo Clock pulse counter
NL150631B (en) * 1965-02-16 1976-08-16 Philips Nv ADJUSTABLE FREQUENCY DIVIDER.
JPS4123747Y1 (en) * 1966-05-26 1966-12-02
US3581066A (en) * 1968-03-06 1971-05-25 Lear Siegler Inc Programmable counting circuit
US3541779A (en) * 1968-03-19 1970-11-24 Corning Glass Works Electronic timepiece
CH501959A (en) * 1968-12-20 1970-08-31 Ebauches Sa Electronic frequency converter

Also Published As

Publication number Publication date
JPS5625636B1 (en) 1981-06-13
US3812669A (en) 1974-05-28
GB1370564A (en) 1974-10-16
FR2133872B1 (en) 1976-10-29
CH585271A4 (en) 1973-02-15
DE2219493B2 (en) 1974-01-24
FR2133872A1 (en) 1972-12-01
CH540520A (en) 1973-02-15
DE2219493C3 (en) 1974-08-15
DE2219493A1 (en) 1972-11-02

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