FR2378403A1 - Time-keeping adjustment for quartz timepiece - using variable capacitor in oscillator circuit to adjust oscillator frequency - Google Patents

Time-keeping adjustment for quartz timepiece - using variable capacitor in oscillator circuit to adjust oscillator frequency

Info

Publication number
FR2378403A1
FR2378403A1 FR7801804A FR7801804A FR2378403A1 FR 2378403 A1 FR2378403 A1 FR 2378403A1 FR 7801804 A FR7801804 A FR 7801804A FR 7801804 A FR7801804 A FR 7801804A FR 2378403 A1 FR2378403 A1 FR 2378403A1
Authority
FR
France
Prior art keywords
time
frequency
oscillator circuit
oscillator
variable capacitor
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.)
Withdrawn
Application number
FR7801804A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 JP578677A external-priority patent/JPS5391781A/en
Priority claimed from JP1708277A external-priority patent/JPS53102782A/en
Priority claimed from JP13330777A external-priority patent/JPS5474467A/en
Application filed by Individual filed Critical Individual
Publication of FR2378403A1 publication Critical patent/FR2378403A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

The time-keeping adjustment is used in a quartz timepiece having a quartz-oscillator circuit and a frequency divider (11) providing hours minutes and seconds signals for a time display (10). It employs a tuning capacitor (5, 6) which can be switched between two different valves. This capacitor (5, 6) is incorporated in the oscillator circuit, with each valve varying its frequency from the standard valve in the positive or negative sense respectively. The capacitance valve is selected according to a time-sharing principle with average oscillator frequency for the two adjusted oscillation frequencies coinciding with the standard value.
FR7801804A 1977-01-24 1978-01-23 Time-keeping adjustment for quartz timepiece - using variable capacitor in oscillator circuit to adjust oscillator frequency Withdrawn FR2378403A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP578677A JPS5391781A (en) 1977-01-24 1977-01-24 Speed adjustment system in electronic timepiece
JP1708277A JPS53102782A (en) 1977-02-21 1977-02-21 Speed adjustment system in electronic timepiece
JP13330777A JPS5474467A (en) 1977-11-07 1977-11-07 System for advancing or delaying electronic watch

Publications (1)

Publication Number Publication Date
FR2378403A1 true FR2378403A1 (en) 1978-08-18

Family

ID=27276894

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7801804A Withdrawn FR2378403A1 (en) 1977-01-24 1978-01-23 Time-keeping adjustment for quartz timepiece - using variable capacitor in oscillator circuit to adjust oscillator frequency

Country Status (2)

Country Link
DE (1) DE2802841A1 (en)
FR (1) FR2378403A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063603B (en) * 1979-10-05 1983-10-05 Seikosha Kk Frequency controlled oscillator circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1539891A (en) * 1967-08-08 1968-09-20 Lannionnais Electronique High stability oscillator frequency correction device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1539891A (en) * 1967-08-08 1968-09-20 Lannionnais Electronique High stability oscillator frequency correction device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV2124/74 *

Also Published As

Publication number Publication date
DE2802841A1 (en) 1978-07-27

Similar Documents

Publication Publication Date Title
GB2054215B (en) Temperature compensating circuit
GB2102199B (en) Piezo-electric resonator
HK53081A (en) Electronic timepiece
CH619832GA3 (en)
ES8506952A1 (en) Controlled oscillator circuit.
FR2378403A1 (en) Time-keeping adjustment for quartz timepiece - using variable capacitor in oscillator circuit to adjust oscillator frequency
CH642514GA3 (en)
JPS53108478A (en) Integrated circuit for timepiece
JPS5420689A (en) Crystal vibrator
CH624820GA3 (en)
JPS5333667A (en) Time regulating element for electronic watches
GB2163575B (en) Improvements in or relating to electronic timepieces
JPS5616330A (en) Synthesizer tuner
JPS5352463A (en) Electronic watch
FR2399761A2 (en) Piezoelectric oscillator with crystal resonator - has mechanical device controlling variable capacitor, to compensate frequency drift due to acceleration
AU515562B2 (en) The tuning ofthe resonance frequency on resonators
FR2361774A1 (en) Piezoelectric oscillator with crystal resonator - has mechanical device controlling variable capacitor, to compensate frequency drift due to acceleration
JPS5345190A (en) Thickness slide crystal vibrator
JPS5353367A (en) Electronic watch
JPS6120557Y2 (en)
JPS5279751A (en) Period adjustment of oscillator circuit for crystal watch
JPS57141136A (en) Phase synchronous tracking device
JPS5357872A (en) Electronic watch
JPS55124088A (en) Compensating method for temperature of crystal watch
JPS5539084A (en) Fast and slow adjusting circuit for electronic watch

Legal Events

Date Code Title Description
ST Notification of lapse