CH626500GA3 - - Google Patents

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Publication number
CH626500GA3
CH626500GA3 CH15880A CH15880A CH626500GA3 CH 626500G A3 CH626500G A3 CH 626500GA3 CH 15880 A CH15880 A CH 15880A CH 15880 A CH15880 A CH 15880A CH 626500G A3 CH626500G A3 CH 626500GA3
Authority
CH
Switzerland
Prior art keywords
frequency
oscillator
circuit
temperature
compensation circuit
Prior art date
Application number
CH15880A
Other versions
CH626500B (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 CH626500B publication Critical patent/CH626500B/en
Application filed filed Critical
Priority to CH15880A priority Critical patent/CH626500B/en
Priority to DE8080810399T priority patent/DE3068916D1/en
Priority to EP80810399A priority patent/EP0032359B1/en
Priority to US06/221,384 priority patent/US4427952A/en
Priority to JP200581A priority patent/JPS56104505A/en
Publication of CH626500GA3 publication Critical patent/CH626500GA3/xx

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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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

The oscillator circuit comprises a digital temperature compensation circuit connected to a low and a high frequency quartz oscillator. The two quartz oscillators have the same inversion temperature points and a different temperature behaviour. In the temperature compensation circuit a beat frequency is produced between the divided signal of the high frequency oscillator and the frequency of the low frequency oscillator and then fed to a correction circuit and multiplied therein with a correction factor which has been stored in a PROM. The obtained correction signal is fed into the frequency divider chain for obtaining a temperature compensated outgoing signal for use in a timer circuit. The temperature compensation circuit is simply designed and allows high accuracy, which is particularly well suited for a wristwatch or a photo camera.
CH15880A 1980-01-10 1980-01-10 OSCILLATOR WITH DIGITAL TEMPERATURE COMPENSATION. CH626500B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH15880A CH626500B (en) 1980-01-10 1980-01-10 OSCILLATOR WITH DIGITAL TEMPERATURE COMPENSATION.
DE8080810399T DE3068916D1 (en) 1980-01-10 1980-12-17 Oscillator with digital temperature compensation
EP80810399A EP0032359B1 (en) 1980-01-10 1980-12-17 Oscillator with digital temperature compensation
US06/221,384 US4427952A (en) 1980-01-10 1980-12-30 Oscillator circuit with digital temperature compensation
JP200581A JPS56104505A (en) 1980-01-10 1981-01-09 Oscillator having digital temperature compensating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH15880A CH626500B (en) 1980-01-10 1980-01-10 OSCILLATOR WITH DIGITAL TEMPERATURE COMPENSATION.

Publications (2)

Publication Number Publication Date
CH626500B CH626500B (en)
CH626500GA3 true CH626500GA3 (en) 1981-11-30

Family

ID=4180576

Family Applications (1)

Application Number Title Priority Date Filing Date
CH15880A CH626500B (en) 1980-01-10 1980-01-10 OSCILLATOR WITH DIGITAL TEMPERATURE COMPENSATION.

Country Status (5)

Country Link
US (1) US4427952A (en)
EP (1) EP0032359B1 (en)
JP (1) JPS56104505A (en)
CH (1) CH626500B (en)
DE (1) DE3068916D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761771A (en) * 1984-08-09 1988-08-02 Seiko Epson Corporation Electronic timekeeping apparatus with temperature compensation and method for compensating same

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869125A (en) * 1981-10-20 1983-04-25 Fuji Electric Co Ltd Variable frequency oscillator using crystal oscillator
CH650122GA3 (en) * 1981-12-17 1985-07-15
DE3425662A1 (en) * 1984-07-12 1986-01-23 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for the temperature compensation of crystal oscillators
US4712078A (en) * 1985-03-27 1987-12-08 The United States Of America As Represented By The Secretary Of The Air Force Dielectric resonator oscillators with digital temperature compensation
ATE114812T1 (en) * 1989-04-27 1994-12-15 Guthrie Res Ass INCLUSION SENSOR FOR METAL METAL FOR CONTINUOUS USE.
ATE114813T1 (en) * 1989-04-27 1994-12-15 Guthrie Res Ass SINGLE USE DISPOSABLE SENSOR FOR DETECTING INCLUSIONS IN MOLTEN METAL.
US5216389A (en) * 1992-01-31 1993-06-01 Motorola, Inc. Temperature compensation of a crystal reference using direct digital synthesis
US5438694A (en) * 1993-08-09 1995-08-01 Motorola, Inc. Distortion compensation for a pulsewidth-modulated circuit
US5831485A (en) * 1997-09-04 1998-11-03 Tektronix, Inc. Method and apparatus for producing a temperature stable frequency using two oscillators
US6693443B2 (en) 1999-04-02 2004-02-17 Worcester Polytechnic Institute Systems for detecting and measuring inclusions
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
DE10221904A1 (en) * 2002-05-16 2003-12-04 Bsh Bosch Siemens Hausgeraete Freezer with defrost function and operating procedure therefor
US7113051B2 (en) * 2004-01-07 2006-09-26 Schlumberger Technology Corporation Frequency characterization of quartz crystals

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH453223A (en) * 1965-11-05 1968-06-14 Centre Electron Horloger Vibration generator for timing device with a mixer and quartz crystals
JPS5840155B2 (en) * 1973-11-26 1983-09-03 シチズン時計株式会社 densid cay
US4071797A (en) * 1976-01-20 1978-01-31 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Quartz piezo-electric element vibrating in a coupled mode
JPS5325341A (en) * 1976-08-23 1978-03-09 Seiko Epson Corp Electronic watch
JPS5441773A (en) * 1977-09-09 1979-04-03 Seiko Instr & Electronics Ltd Electronic watch
JPS5476261A (en) * 1977-11-30 1979-06-18 Seiko Instr & Electronics Ltd Electronic wristwatch
CH620087B (en) * 1979-03-09 Suisse Horlogerie OSCILLATOR WITH A HIGH FREQUENCY QUARTZ RESONATOR.
CH621680B (en) * 1979-05-22 Suisse Horlogerie OSCILLATOR WITH TEMPERATURE COMPENSATION.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761771A (en) * 1984-08-09 1988-08-02 Seiko Epson Corporation Electronic timekeeping apparatus with temperature compensation and method for compensating same

Also Published As

Publication number Publication date
US4427952A (en) 1984-01-24
EP0032359A1 (en) 1981-07-22
CH626500B (en)
JPS56104505A (en) 1981-08-20
EP0032359B1 (en) 1984-08-08
DE3068916D1 (en) 1984-09-13

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