JPS5557182A - Oscillator device with temperature compensation for electronic watch - Google Patents

Oscillator device with temperature compensation for electronic watch

Info

Publication number
JPS5557182A
JPS5557182A JP12923878A JP12923878A JPS5557182A JP S5557182 A JPS5557182 A JP S5557182A JP 12923878 A JP12923878 A JP 12923878A JP 12923878 A JP12923878 A JP 12923878A JP S5557182 A JPS5557182 A JP S5557182A
Authority
JP
Japan
Prior art keywords
circuit
signal
signals
timer
frequency
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.)
Pending
Application number
JP12923878A
Other languages
Japanese (ja)
Inventor
Fuminori Suzuki
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
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP12923878A priority Critical patent/JPS5557182A/en
Publication of JPS5557182A publication Critical patent/JPS5557182A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the accuracy of the crystal watch by switching the two output signals based on the detection information on the difference and the scale of the frequencies of the two crystal oscillator circuits featuring the different temperature- frequency characteristics.
CONSTITUTION: Rectangular wave signals P1 and P2 featuring the temperature- frequency characteristics f1 and f2 of crystal oscillator circuit 1 and 2 are changed into output signal P3 the frequency of which is equal to beat frequency fB of f1 and f2 in case the phase difference is zero at phase detector circuit 3 and then supplied to compensation control circuit 9 to undergo 1/n by divider circuit 4 and then to be changed into signal P4. Then α timer 6 counts the units of signal P3 and transmits signal P5 to signal switch circuit 8. And the transmission of P5 is stopped when the number of the signals reaches α to start β timer 7. Timer 7 transmits signal P6 to circuit 8 only for the time of β=n.B to fixed time B second. And circuit 9 transmits signal P8 to circuit 8 so that the output period of signals P5 and P6 may be the correction time and at the same time performs the switching between signals P1 and P2 through the count unit designation of timer 6 plus circuit 8 and by signal P7 sent from speed decision circuit 5 which desides the scale of the frequencies of signals P1 and P2.
COPYRIGHT: (C)1980,JPO&Japio
JP12923878A 1978-10-20 1978-10-20 Oscillator device with temperature compensation for electronic watch Pending JPS5557182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12923878A JPS5557182A (en) 1978-10-20 1978-10-20 Oscillator device with temperature compensation for electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12923878A JPS5557182A (en) 1978-10-20 1978-10-20 Oscillator device with temperature compensation for electronic watch

Publications (1)

Publication Number Publication Date
JPS5557182A true JPS5557182A (en) 1980-04-26

Family

ID=15004593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12923878A Pending JPS5557182A (en) 1978-10-20 1978-10-20 Oscillator device with temperature compensation for electronic watch

Country Status (1)

Country Link
JP (1) JPS5557182A (en)

Similar Documents

Publication Publication Date Title
JPS553238A (en) Reception frequency display system
JPS5557182A (en) Oscillator device with temperature compensation for electronic watch
JPS5550191A (en) Electronic timepiece
JPS5357914A (en) Synchronous oscillator
JPS55121180A (en) Electronic watch
JPS5436101A (en) Automatic channel selection unit
JPS5616330A (en) Synthesizer tuner
JPS5410621A (en) Detection circuit for normal tuning frequency
JPS54124611A (en) Communication unit
JPS51141615A (en) Automatic tuning apparatus for electronic musical instrument
JPS55127735A (en) Phase synchronizing oscillator
JPS5335466A (en) Variable frequency oscillator circuit
JPS5620337A (en) Oscillator with temperature compensation
JPS5539084A (en) Fast and slow adjusting circuit for electronic watch
JPS5542001A (en) Electronic clock
JPS54114917A (en) Radio unit for relay
JPS5549029A (en) Automatic channel selector of am receiver
JPS54162247A (en) Electronic range
JPS55135448A (en) Extracting system for manchester code clock
SU618701A1 (en) Meter of relative resonance interval of resonance elements
JPS57175276A (en) Delayed time measuring circuit
JPS5453901A (en) Channel selector
JPS53148946A (en) Voltage control oscillation circuit
JPS5723330A (en) Phase detector
JPS54136102A (en) Electronic tuning type receiver