JPS5587986A - Electronic watch system - Google Patents

Electronic watch system

Info

Publication number
JPS5587986A
JPS5587986A JP16006378A JP16006378A JPS5587986A JP S5587986 A JPS5587986 A JP S5587986A JP 16006378 A JP16006378 A JP 16006378A JP 16006378 A JP16006378 A JP 16006378A JP S5587986 A JPS5587986 A JP S5587986A
Authority
JP
Japan
Prior art keywords
adder
output
signal
frequency divider
waveform shaper
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.)
Granted
Application number
JP16006378A
Other languages
Japanese (ja)
Other versions
JPS6161282B2 (en
Inventor
Toshitake Kato
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 JP16006378A priority Critical patent/JPS5587986A/en
Publication of JPS5587986A publication Critical patent/JPS5587986A/en
Publication of JPS6161282B2 publication Critical patent/JPS6161282B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To provide a stable time standard signal at low power consumption in an electronic watch system by providing an intermittent waveform shaper controlled by the output signal from second signal source between first signal source continuously operated by a relatively low level and a logic processor for the output signal from the first signal source.
CONSTITUTION: The output from a high frequency oscillator 10 continuously operated by a relatively low level is applied through a linearly amplifying intermittent waveform shaper 20 to a phase comparator 40. The output from a low frequency oscillator 12 controls through a control signal generator 30 the waveform shaper 20, and is, on the other hand, applied through a delay circuit 35 to both the phase comparator 40 and an adder 46. After the output from the comparator 40 is divided by 1/N frequency divider 44, it is applied to the adder 46, and also to an L/M frequency divider 50 to an adder 47. The adder 47 adds the outputs from the frequency divider 50 and the adder 46 to display it through a frequency divider 50 and a counter 62 on a display unit 64. Thus, it can provide precise and stable time standard signal with low power consumption.
COPYRIGHT: (C)1980,JPO&Japio
JP16006378A 1978-12-27 1978-12-27 Electronic watch system Granted JPS5587986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16006378A JPS5587986A (en) 1978-12-27 1978-12-27 Electronic watch system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16006378A JPS5587986A (en) 1978-12-27 1978-12-27 Electronic watch system

Publications (2)

Publication Number Publication Date
JPS5587986A true JPS5587986A (en) 1980-07-03
JPS6161282B2 JPS6161282B2 (en) 1986-12-25

Family

ID=15707088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16006378A Granted JPS5587986A (en) 1978-12-27 1978-12-27 Electronic watch system

Country Status (1)

Country Link
JP (1) JPS5587986A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000174621A (en) * 1998-11-27 2000-06-23 Asulab Sa High frequency signal generator by time reference of clock

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165973A (en) * 1974-12-05 1976-06-08 Citizen Watch Co Ltd DENSHIDOKEI
JPS51144267A (en) * 1975-06-05 1976-12-11 Citizen Watch Co Ltd Electronic clock

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165973A (en) * 1974-12-05 1976-06-08 Citizen Watch Co Ltd DENSHIDOKEI
JPS51144267A (en) * 1975-06-05 1976-12-11 Citizen Watch Co Ltd Electronic clock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000174621A (en) * 1998-11-27 2000-06-23 Asulab Sa High frequency signal generator by time reference of clock

Also Published As

Publication number Publication date
JPS6161282B2 (en) 1986-12-25

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