JPS5437707A - Index clock supervising circuit - Google Patents

Index clock supervising circuit

Info

Publication number
JPS5437707A
JPS5437707A JP10355977A JP10355977A JPS5437707A JP S5437707 A JPS5437707 A JP S5437707A JP 10355977 A JP10355977 A JP 10355977A JP 10355977 A JP10355977 A JP 10355977A JP S5437707 A JPS5437707 A JP S5437707A
Authority
JP
Japan
Prior art keywords
supervising circuit
index clock
index
clock signal
clock supervising
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
JP10355977A
Other languages
Japanese (ja)
Other versions
JPS5831668B2 (en
Inventor
Yoshinobu Maeda
Sunao Hirata
Morihiko Takashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10355977A priority Critical patent/JPS5831668B2/en
Publication of JPS5437707A publication Critical patent/JPS5437707A/en
Publication of JPS5831668B2 publication Critical patent/JPS5831668B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE: To obtain a supervising circuit which judges index clock signal to be anomalous when the index clock signal becomes "1" where the counter output is at a value other than N or the sector clock signal becomes "1" where the counter output is N.
COPYRIGHT: (C)1979,JPO&Japio
JP10355977A 1977-08-31 1977-08-31 Index clock supervisory circuit Expired JPS5831668B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10355977A JPS5831668B2 (en) 1977-08-31 1977-08-31 Index clock supervisory circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10355977A JPS5831668B2 (en) 1977-08-31 1977-08-31 Index clock supervisory circuit

Publications (2)

Publication Number Publication Date
JPS5437707A true JPS5437707A (en) 1979-03-20
JPS5831668B2 JPS5831668B2 (en) 1983-07-07

Family

ID=14357160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10355977A Expired JPS5831668B2 (en) 1977-08-31 1977-08-31 Index clock supervisory circuit

Country Status (1)

Country Link
JP (1) JPS5831668B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63236283A (en) * 1987-03-25 1988-10-03 エヌオーケー株式会社 Panel heater
US5670259A (en) * 1995-12-29 1997-09-23 Heat System Research & Industry, Inc. Water soluble pyrolytic paint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63236283A (en) * 1987-03-25 1988-10-03 エヌオーケー株式会社 Panel heater
US5670259A (en) * 1995-12-29 1997-09-23 Heat System Research & Industry, Inc. Water soluble pyrolytic paint

Also Published As

Publication number Publication date
JPS5831668B2 (en) 1983-07-07

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