CH631315B - Piece d'horlogerie electronique, notamment montre-bracelet electronique. - Google Patents

Piece d'horlogerie electronique, notamment montre-bracelet electronique.

Info

Publication number
CH631315B
CH631315B CH949778A CH949778A CH631315B CH 631315 B CH631315 B CH 631315B CH 949778 A CH949778 A CH 949778A CH 949778 A CH949778 A CH 949778A CH 631315 B CH631315 B CH 631315B
Authority
CH
Switzerland
Prior art keywords
frequency
temperature
watch
electronic
oscillations
Prior art date
Application number
CH949778A
Other languages
English (en)
French (fr)
Other versions
CH631315GA3 (enrdf_load_stackoverflow
Inventor
Satoaki Kato
Original Assignee
Seiko Instr & Electronics
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 of CH631315B publication Critical patent/CH631315B/fr
Application filed by Seiko Instr & Electronics filed Critical Seiko Instr & Electronics
Publication of CH631315GA3 publication Critical patent/CH631315GA3/fr

Links

Classifications

    • 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
    • G04G3/027—Circuits for deriving low frequency timing pulses from pulses of higher frequency by combining pulse-trains of different frequencies, e.g. obtained from two independent oscillators or from a common oscillator by means of different frequency dividing ratios
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Laminated Bodies (AREA)
  • Adornments (AREA)
CH949778A 1977-09-09 1978-09-11 Piece d'horlogerie electronique, notamment montre-bracelet electronique. CH631315B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10849477A JPS5441773A (en) 1977-09-09 1977-09-09 Electronic watch

Publications (2)

Publication Number Publication Date
CH631315B true CH631315B (fr)
CH631315GA3 CH631315GA3 (enrdf_load_stackoverflow) 1982-08-13

Family

ID=14486188

Family Applications (1)

Application Number Title Priority Date Filing Date
CH949778A CH631315B (fr) 1977-09-09 1978-09-11 Piece d'horlogerie electronique, notamment montre-bracelet electronique.

Country Status (3)

Country Link
JP (1) JPS5441773A (enrdf_load_stackoverflow)
CH (1) CH631315B (enrdf_load_stackoverflow)
GB (1) GB2004155B (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH621680B (de) * 1979-05-22 Suisse Horlogerie Oszillator mit temperaturkompensation.
EP0047320A4 (en) * 1979-12-20 1982-05-10 Ricoh Watch LINEARIZATION CIRCUIT AND ELECTRONIC CLOCK THAT IS EQUIPPED WITH IT.
CH626500B (de) 1980-01-10 Suisse Horlogerie Oszillator mit digitaler temperaturkompensation.
CH625670B (de) 1980-01-10 Suisse Horlogerie Oszillator mit digitaler temperaturkompensation.
JPS57578A (en) * 1980-06-03 1982-01-05 Seiko Epson Corp Electronic timepiece
CH650122GA3 (enrdf_load_stackoverflow) * 1981-12-17 1985-07-15
US5428315A (en) * 1985-01-22 1995-06-27 The United States Of America As Represented By The Secreatry Of The Army Method of making radiation hardened quartz crystal oscillators

Also Published As

Publication number Publication date
CH631315GA3 (enrdf_load_stackoverflow) 1982-08-13
JPS5441773A (en) 1979-04-03
GB2004155A (en) 1979-03-21
GB2004155B (en) 1982-03-17

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Legal Events

Date Code Title Description
PL Patent ceased