GB1481336A - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
GB1481336A
GB1481336A GB44376/74A GB4437674A GB1481336A GB 1481336 A GB1481336 A GB 1481336A GB 44376/74 A GB44376/74 A GB 44376/74A GB 4437674 A GB4437674 A GB 4437674A GB 1481336 A GB1481336 A GB 1481336A
Authority
GB
United Kingdom
Prior art keywords
pulse generator
counter
clock pulse
signal
oscillating circuit
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
GB44376/74A
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 JP48119605A external-priority patent/JPS5071362A/ja
Priority claimed from JP12199473A external-priority patent/JPS5073673A/ja
Priority claimed from JP48128549A external-priority patent/JPS5757674B2/ja
Priority claimed from JP48132379A external-priority patent/JPS5840155B2/en
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of GB1481336A publication Critical patent/GB1481336A/en
Expired 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
    • 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
    • H03L1/026—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 by using a memory for digitally storing correction values
    • 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
    • H03L1/027—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 by using frequency conversion means which is variable with temperature, e.g. mixer, frequency divider, pulse add/substract logic circuit
    • 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
    • H03L1/028—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only of generators comprising piezoelectric resonators

Abstract

In addition to an oscillating circuit constructed as a clock pulse generator (91) and having a temperature frequency response as low as possible, the time-measuring instrument has a further oscillating circuit (92) which has a temperature frequency response deviating therefrom and preferably higher. A counter (98) counts the pulses of this further oscillating circuit and a temperature-dependent signal is formed by arranging for the counter results to be stored in a memory during a period which is essentially determined by a time counter (912) driven essentially by the clock pulse generator (91). Said signal is transmitted periodically to a frequency converter (91) whose output signal is used to correct the signal transmitted by the clock pulse generator to a reduction mechanism (911) which drives the time counter (912). At least some of the said circuit parts consist of CMOS integrated circuits. <IMAGE>
GB44376/74A 1973-10-24 1974-10-14 Electronic timepiece Expired GB1481336A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP48119605A JPS5071362A (en) 1973-10-24 1973-10-24
JP12199473A JPS5073673A (en) 1973-10-30 1973-10-30
JP48128549A JPS5757674B2 (en) 1973-11-15 1973-11-15
JP48132379A JPS5840155B2 (en) 1973-11-26 1973-11-26 densid cay

Publications (1)

Publication Number Publication Date
GB1481336A true GB1481336A (en) 1977-07-27

Family

ID=27470610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44376/74A Expired GB1481336A (en) 1973-10-24 1974-10-14 Electronic timepiece

Country Status (4)

Country Link
CH (1) CH615559GA3 (en)
DE (1) DE2450348C3 (en)
FR (1) FR2249377B1 (en)
GB (1) GB1481336A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432432A (en) * 2005-11-16 2007-05-23 Polymeters Response Internat L Correcting timekeeper with oscillating signal

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498677A (en) * 1978-01-11 1979-08-03 Citizen Watch Co Ltd Electronic watch
CH625670B (en) * 1980-01-10 Suisse Horlogerie OSCILLATOR WITH DIGITAL TEMPERATURE COMPENSATION.
FR2552954B1 (en) * 1983-10-04 1985-11-08 Cepe COMPONENT FOR A TEMPERATURE COMPENSATED OSCILLATOR AND OSCILLATOR COMPRISING SAME
FR2723275B1 (en) * 1994-08-01 1996-10-25 Detaint Jacques FREQUENCY GENERATION DEVICE (S)
DE102019212669A1 (en) * 2019-08-23 2021-02-25 Continental Automotive Gmbh Method for the synchronization of at least two communication devices, communication device, vehicle and communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432432A (en) * 2005-11-16 2007-05-23 Polymeters Response Internat L Correcting timekeeper with oscillating signal
GB2432432B (en) * 2005-11-16 2009-04-15 Polymeters Response Internat L Timekeeping apparatus

Also Published As

Publication number Publication date
DE2450348B2 (en) 1980-03-20
DE2450348C3 (en) 1980-12-11
DE2450348A1 (en) 1975-05-07
FR2249377B1 (en) 1977-07-08
FR2249377A1 (en) 1975-05-23
CH615559GA3 (en) 1980-02-15
CH615559B (en)

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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

Effective date: 19941013