JPS54115031A - Recording method of information - Google Patents

Recording method of information

Info

Publication number
JPS54115031A
JPS54115031A JP2246878A JP2246878A JPS54115031A JP S54115031 A JPS54115031 A JP S54115031A JP 2246878 A JP2246878 A JP 2246878A JP 2246878 A JP2246878 A JP 2246878A JP S54115031 A JPS54115031 A JP S54115031A
Authority
JP
Japan
Prior art keywords
information
tracks
recording
rad
rows
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
JP2246878A
Other languages
Japanese (ja)
Other versions
JPS6360398B2 (en
Inventor
Yutaka Kaneko
Mitsuhisa Fukuda
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 Co Ltd
Original Assignee
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 Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2246878A priority Critical patent/JPS54115031A/en
Priority to US06/016,101 priority patent/US4298244A/en
Publication of JPS54115031A publication Critical patent/JPS54115031A/en
Priority to US06/197,203 priority patent/US4368946A/en
Publication of JPS6360398B2 publication Critical patent/JPS6360398B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1803—Error detection or correction; Testing, e.g. of drop-outs by redundancy in data representation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To enable to shorten the access time at read in freely, by recording a series of information equally through the provision of required position shift to each track of dual lines on the media disc. CONSTITUTION:To the video information 14,15 arranged on the tracks 4,5 of two rows of the media disc 13, a series of information ABC...LMN... which are entirely equal one another is recorded, and the location of recording of information at the tracks 4 and 5 is shifted by piRad. Althogh one information is recorded on two parts for the disc 13, in retrieval of the address mark, if the control system is set so that closer video information 14 or 15 can be selected, the maximum rotational angle is pi/2 Rad at accessing. The reduction characteristics of the access rotational angle, can be maximized freely by increasing the number of rows of tracks, and by recording a series of information equall each other on the tracks of n rows and shifting the recording location of each row by 2pi/ Rad., the maximum access rotational angle can be reduced to pi/n Rad.
JP2246878A 1978-02-28 1978-02-28 Recording method of information Granted JPS54115031A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2246878A JPS54115031A (en) 1978-02-28 1978-02-28 Recording method of information
US06/016,101 US4298244A (en) 1978-02-28 1979-02-28 Information recording method and apparatus
US06/197,203 US4368946A (en) 1978-02-28 1980-10-15 Information recording method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2246878A JPS54115031A (en) 1978-02-28 1978-02-28 Recording method of information

Publications (2)

Publication Number Publication Date
JPS54115031A true JPS54115031A (en) 1979-09-07
JPS6360398B2 JPS6360398B2 (en) 1988-11-24

Family

ID=12083531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2246878A Granted JPS54115031A (en) 1978-02-28 1978-02-28 Recording method of information

Country Status (1)

Country Link
JP (1) JPS54115031A (en)

Also Published As

Publication number Publication date
JPS6360398B2 (en) 1988-11-24

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