JPS5669577A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5669577A
JPS5669577A JP14549979A JP14549979A JPS5669577A JP S5669577 A JPS5669577 A JP S5669577A JP 14549979 A JP14549979 A JP 14549979A JP 14549979 A JP14549979 A JP 14549979A JP S5669577 A JPS5669577 A JP S5669577A
Authority
JP
Japan
Prior art keywords
time
correct
value
error
pulse
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
JP14549979A
Other languages
Japanese (ja)
Inventor
Kenji Kamiya
Noboru Tonegawa
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.)
Ricoh Elemex Corp
Ricoh Co Ltd
Original Assignee
Ricoh Elemex Corp
Ricoh 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 Ricoh Elemex Corp, Ricoh Co Ltd filed Critical Ricoh Elemex Corp
Priority to JP14549979A priority Critical patent/JPS5669577A/en
Publication of JPS5669577A publication Critical patent/JPS5669577A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE: To carry out automatically the clock rate adjustmetn by detecting error between a standard correct time and a watch correct time in a constant time unit and interrupting correction pulse into a frequency dividing circuit by means of an adding data of this error and the previous corrected amount or opening an interval.
CONSTITUTION: When receiver 6 a time informing sound, after is passes through a filter 7, a wave height is discriminated 8 and the time information pattern is discriminated 9. Then, when recognizing the time informing sound, a time correcting circuit 3 corrects a second pointer of a pointer display device 5 to a correct 0sec. Also, the counting equipment 11 counts difference days between the two time informations and detects the time difference between the value of the time counter 10 and a standard correct time pulse is detected 12 and divided by a value of the equipment 11 to be fed to an accumulator 13. The accumulator 13 adds the previous error data to an error data of this time and the value is introduced into a pulse number correcting circuit 14 to carry out the correct of the frequncy dividing circuit 2.
COPYRIGHT: (C)1981,JPO&Japio
JP14549979A 1979-11-12 1979-11-12 Electronic watch Pending JPS5669577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14549979A JPS5669577A (en) 1979-11-12 1979-11-12 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14549979A JPS5669577A (en) 1979-11-12 1979-11-12 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5669577A true JPS5669577A (en) 1981-06-10

Family

ID=15386664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14549979A Pending JPS5669577A (en) 1979-11-12 1979-11-12 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5669577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07287797A (en) * 1995-04-21 1995-10-31 Matsushita Electric Ind Co Ltd Automatic meter reading system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07287797A (en) * 1995-04-21 1995-10-31 Matsushita Electric Ind Co Ltd Automatic meter reading system

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