JPS558631A - Error indicator - Google Patents

Error indicator

Info

Publication number
JPS558631A
JPS558631A JP7962178A JP7962178A JPS558631A JP S558631 A JPS558631 A JP S558631A JP 7962178 A JP7962178 A JP 7962178A JP 7962178 A JP7962178 A JP 7962178A JP S558631 A JPS558631 A JP S558631A
Authority
JP
Japan
Prior art keywords
code
circuit
error detection
added
vtr
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
JP7962178A
Other languages
Japanese (ja)
Inventor
Satoshi Kunii
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7962178A priority Critical patent/JPS558631A/en
Publication of JPS558631A publication Critical patent/JPS558631A/en
Pending legal-status Critical Current

Links

Landscapes

  • Detection And Prevention Of Errors In Transmission (AREA)
  • Debugging And Monitoring (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE: To perform tracking adjustment accurately by providing a code error detection circuit where a digital code with an error detection code added is inputted to detects whether a code error exists in the input digital doce or not.
CONSTITUTION: An error detection code is added to the digital code of the output of AD converter circuit 13 by error detection code adding circuit 14, and synchronizing signals are added to them, and they are inputted to video tape recorder (VTR) 4 and are recorded. In respect to signals reproduced in the reproducing mode of VTR 4, whether a code error exists in the input digital code or not is detected by code error detection circuit 20, and a DC current proportional to the detected frequency is generated by a DC circuit which is constituted by flip flop 23 and smoothing circuit 24. The output of this DC circuit is indiacted on indiactor 25.
COPYRIGHT: (C)1980,JPO&Japio
JP7962178A 1978-06-29 1978-06-29 Error indicator Pending JPS558631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7962178A JPS558631A (en) 1978-06-29 1978-06-29 Error indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7962178A JPS558631A (en) 1978-06-29 1978-06-29 Error indicator

Publications (1)

Publication Number Publication Date
JPS558631A true JPS558631A (en) 1980-01-22

Family

ID=13695127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7962178A Pending JPS558631A (en) 1978-06-29 1978-06-29 Error indicator

Country Status (1)

Country Link
JP (1) JPS558631A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5788584A (en) * 1980-11-21 1982-06-02 Omron Tateisi Electronics Co Discrimination device for abnormal data recording in magnetic recording medium
JPS60101844U (en) * 1983-12-14 1985-07-11 株式会社ケンウッド PCM broadcast receiver
JPS60138754A (en) * 1983-12-09 1985-07-23 ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Method and apparatus for detecting tracking deviation in reproduction of digitally coded video signal recorded on magnetic tape
JPS61104358A (en) * 1984-10-23 1986-05-22 Sony Corp Tracking control device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5788584A (en) * 1980-11-21 1982-06-02 Omron Tateisi Electronics Co Discrimination device for abnormal data recording in magnetic recording medium
JPS60138754A (en) * 1983-12-09 1985-07-23 ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Method and apparatus for detecting tracking deviation in reproduction of digitally coded video signal recorded on magnetic tape
JPS60101844U (en) * 1983-12-14 1985-07-11 株式会社ケンウッド PCM broadcast receiver
JPS61104358A (en) * 1984-10-23 1986-05-22 Sony Corp Tracking control device

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