CH620087GA3 - - Google Patents

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Publication number
CH620087GA3
CH620087GA3 CH226779A CH226779A CH620087GA3 CH 620087G A3 CH620087G A3 CH 620087GA3 CH 226779 A CH226779 A CH 226779A CH 226779 A CH226779 A CH 226779A CH 620087G A3 CH620087G A3 CH 620087GA3
Authority
CH
Switzerland
Prior art keywords
frequency
oscillator
quartz oscillator
high frequency
quartz
Prior art date
Application number
CH226779A
Other versions
CH620087B (en
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
Publication of CH620087B publication Critical patent/CH620087B/en
Application filed filed Critical
Priority to CH226779A priority Critical patent/CH620087B/en
Priority to DE8080810066T priority patent/DE3062665D1/en
Priority to EP80810066A priority patent/EP0015873B2/en
Priority to US06/126,154 priority patent/US4344046A/en
Priority to JP2906480A priority patent/JPS55124311A/en
Publication of CH620087GA3 publication Critical patent/CH620087GA3/xx

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
    • G04G3/022—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

A signal generator includes a high frequency oscillator such as a quartz crystal oscillator at a frequency of 4.19 MHz, a low frequency quartz oscillator with a frequency of 32 kHz, a beat frequency generator for producing a correction signal which is transmitted to a programmable frequency divider, and an electronic switch for periodic switching of the high frequency quartz oscillator. By periodically switching-on the high frequency quartz oscillator, comparing its frequency curve with that of the low frequency quartz oscillator and and appropriately adjusting the programmable frequency divider, the advantages of long term stability, temperature of behavior and aging of a high frequency oscillator are combined with the low current consumption characteristics associated with the low frequency quartz oscillator, whereby the life of a battery powering the signal generator can be substantially extended.
CH226779A 1979-03-09 1979-03-09 OSCILLATOR WITH A HIGH FREQUENCY QUARTZ RESONATOR. CH620087B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH226779A CH620087B (en) 1979-03-09 1979-03-09 OSCILLATOR WITH A HIGH FREQUENCY QUARTZ RESONATOR.
DE8080810066T DE3062665D1 (en) 1979-03-09 1980-02-22 Oscillator with a low frequency quartz resonator
EP80810066A EP0015873B2 (en) 1979-03-09 1980-02-22 Oscillator with a low frequency quartz resonator
US06/126,154 US4344046A (en) 1979-03-09 1980-02-29 Signal generator including high and low frequency oscillators
JP2906480A JPS55124311A (en) 1979-03-09 1980-03-07 Oscillator having high frequency crystal resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH226779A CH620087B (en) 1979-03-09 1979-03-09 OSCILLATOR WITH A HIGH FREQUENCY QUARTZ RESONATOR.

Publications (2)

Publication Number Publication Date
CH620087B CH620087B (en)
CH620087GA3 true CH620087GA3 (en) 1980-11-14

Family

ID=4229764

Family Applications (1)

Application Number Title Priority Date Filing Date
CH226779A CH620087B (en) 1979-03-09 1979-03-09 OSCILLATOR WITH A HIGH FREQUENCY QUARTZ RESONATOR.

Country Status (5)

Country Link
US (1) US4344046A (en)
EP (1) EP0015873B2 (en)
JP (1) JPS55124311A (en)
CH (1) CH620087B (en)
DE (1) DE3062665D1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH626500B (en) 1980-01-10 Suisse Horlogerie OSCILLATOR WITH DIGITAL TEMPERATURE COMPENSATION.
CH643106B (en) * 1980-11-26 Suisse Horlogerie TIME-GUARD INCLUDING A CHAIN OF DIVIDERS WITH ADJUSTABLE DIVISION RATIO.
US4443116A (en) * 1981-01-09 1984-04-17 Citizen Watch Company Limited Electronic timepiece
JPS5843187A (en) * 1981-09-03 1983-03-12 Fuji Electric Co Ltd Variable frequency oscillation system
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
JPS6238605A (en) * 1985-08-13 1987-02-19 Nec Corp Crystal oscillator
US5179359A (en) * 1992-03-16 1993-01-12 Hughes Aircraft Company Digitally controlled frequency generator including a crystal oscillator
DE19618094C2 (en) * 1996-05-06 1999-06-02 Sgs Thomson Microelectronics Control circuit with tunable standby oscillator
JPH10190568A (en) * 1996-12-27 1998-07-21 Matsushita Electric Ind Co Ltd Wireless receiver
US5844435A (en) * 1997-03-11 1998-12-01 Lucent Technologies Inc Low power, high accuracy clock circuit and method for integrated circuits
US5831485A (en) * 1997-09-04 1998-11-03 Tektronix, Inc. Method and apparatus for producing a temperature stable frequency using two oscillators
ATE442614T1 (en) * 2000-01-10 2009-09-15 Eta Sa Mft Horlogere Suisse DEVICE FOR GENERATING A SIGNAL WHICH FREQUENCY IS SIGNIFICANTLY INDEPENDENT OF TEMPERATURE
DE60223051T2 (en) * 2001-08-29 2008-07-24 Analog Devices Inc., Norwood ARRANGEMENT AND METHOD FOR FAST SWITCHING ON A PHASE-LOCKED LOOP
US7019680B2 (en) * 2003-04-25 2006-03-28 Jackson Gregory P Hand-held, continuously variable, remote controller
FR2854992B1 (en) * 2003-05-15 2005-07-01 Suisse Electronique Microtech ARCHITECTURE FOR TIME BASE
EP2525265B1 (en) * 2011-05-14 2015-06-03 Johnson Controls Automotive Electronics GmbH Method of operation of a timepiece device
CN104143961B (en) * 2014-07-25 2018-01-19 广东大普通信技术有限公司 A kind of constant-temperature crystal oscillator transmitting frequency calibration method, apparatus and system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364439A (en) * 1966-10-07 1968-01-16 Tele Signal Corp Frequency corrected digital clock with memory in phase control loop
CH610473B5 (en) 1972-08-24 1979-04-30 Dynacore Sa Generator of isochronous reference periods which can be used for measuring time and can be readjusted, and use of this generator
JPS5071362A (en) * 1973-10-24 1975-06-13
JPS6035637B2 (en) * 1975-06-05 1985-08-15 シチズン時計株式会社 electronic clock
GB1570660A (en) * 1976-06-30 1980-07-02 Suwa Seikosha Kk Electronic timepiece
JPS5388762A (en) * 1976-12-27 1978-08-04 Seiko Epson Corp Electronic watch with temperature compensation
JPS5428178A (en) * 1977-08-04 1979-03-02 Seiko Epson Corp Electronic watch
JPS5428177A (en) * 1977-08-04 1979-03-02 Seiko Epson Corp Electronic watch
JPS5550191A (en) * 1978-10-06 1980-04-11 Citizen Watch Co Ltd Electronic timepiece

Also Published As

Publication number Publication date
JPS55124311A (en) 1980-09-25
CH620087B (en)
EP0015873B2 (en) 1986-06-11
JPS6347002B2 (en) 1988-09-20
EP0015873A1 (en) 1980-09-17
EP0015873B1 (en) 1983-04-13
US4344046A (en) 1982-08-10
DE3062665D1 (en) 1983-05-19

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Legal Events

Date Code Title Description
PL Patent ceased