JPS51123185A - Parent-child clock - Google Patents

Parent-child clock

Info

Publication number
JPS51123185A
JPS51123185A JP4707775A JP4707775A JPS51123185A JP S51123185 A JPS51123185 A JP S51123185A JP 4707775 A JP4707775 A JP 4707775A JP 4707775 A JP4707775 A JP 4707775A JP S51123185 A JPS51123185 A JP S51123185A
Authority
JP
Japan
Prior art keywords
parent
clock
child clock
child
parentchild
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
JP4707775A
Other languages
Japanese (ja)
Other versions
JPS5945953B2 (en
Inventor
Yoshio Oki
Tatsuya Tamura
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Priority to JP50047077A priority Critical patent/JPS5945953B2/en
Publication of JPS51123185A publication Critical patent/JPS51123185A/en
Publication of JPS5945953B2 publication Critical patent/JPS5945953B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: In a parent-child clock having two parent clocks that is the parent and the vice-parent clock, detection of an abnormal signal is done by the drive pulse of the child clock in order to make sure of the operation of the parentchild clock.
COPYRIGHT: (C)1976,JPO&Japio
JP50047077A 1975-04-18 1975-04-18 Parent-child clock Expired JPS5945953B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50047077A JPS5945953B2 (en) 1975-04-18 1975-04-18 Parent-child clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50047077A JPS5945953B2 (en) 1975-04-18 1975-04-18 Parent-child clock

Publications (2)

Publication Number Publication Date
JPS51123185A true JPS51123185A (en) 1976-10-27
JPS5945953B2 JPS5945953B2 (en) 1984-11-09

Family

ID=12765095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50047077A Expired JPS5945953B2 (en) 1975-04-18 1975-04-18 Parent-child clock

Country Status (1)

Country Link
JP (1) JPS5945953B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56101586A (en) * 1980-01-18 1981-08-14 Seikosha Co Ltd Master timepiece
JPS56101587A (en) * 1980-01-18 1981-08-14 Seikosha Co Ltd Master time piece

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ571874A (en) 2006-04-12 2010-11-26 Hardie James Technology Ltd A surface sealed reinforced building element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56101586A (en) * 1980-01-18 1981-08-14 Seikosha Co Ltd Master timepiece
JPS56101587A (en) * 1980-01-18 1981-08-14 Seikosha Co Ltd Master time piece
JPS6345075B2 (en) * 1980-01-18 1988-09-07 Seikosha Kk

Also Published As

Publication number Publication date
JPS5945953B2 (en) 1984-11-09

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