JPS55153183A - Magnetic recording system - Google Patents

Magnetic recording system

Info

Publication number
JPS55153183A
JPS55153183A JP6072279A JP6072279A JPS55153183A JP S55153183 A JPS55153183 A JP S55153183A JP 6072279 A JP6072279 A JP 6072279A JP 6072279 A JP6072279 A JP 6072279A JP S55153183 A JPS55153183 A JP S55153183A
Authority
JP
Japan
Prior art keywords
address information
recorded
inverter
twice
less
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
JP6072279A
Other languages
Japanese (ja)
Inventor
Takashi Aida
Akira Chuma
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 JP6072279A priority Critical patent/JPS55153183A/en
Publication of JPS55153183A publication Critical patent/JPS55153183A/en
Pending 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 make it possible to read address information correctly by recording the address information by using not less than two kinds of patterns after the address information is differently converted, when the address information is recorded on each tracks not less than twice.
CONSTITUTION: When address information is recorded not less than twice, e.g., twice, latter address information 11 is recorded in a pattern differing in magnetic recording characteristics from former address information 10 and being given the same meaning. Namely, when the former is denoted as A(1011), the latter is passed through an inverting circuit to record A'(0100). Thus recorded address information is read out by the circuit consisting of inverter N inverting either read address information, AND gate A1 for AND between the output of this inverter N and the other, and exclusive-OR gate EOR for OR between the output of inverter N and the other.
COPYRIGHT: (C)1980,JPO&Japio
JP6072279A 1979-05-17 1979-05-17 Magnetic recording system Pending JPS55153183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6072279A JPS55153183A (en) 1979-05-17 1979-05-17 Magnetic recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6072279A JPS55153183A (en) 1979-05-17 1979-05-17 Magnetic recording system

Publications (1)

Publication Number Publication Date
JPS55153183A true JPS55153183A (en) 1980-11-28

Family

ID=13150446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6072279A Pending JPS55153183A (en) 1979-05-17 1979-05-17 Magnetic recording system

Country Status (1)

Country Link
JP (1) JPS55153183A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60167165A (en) * 1984-02-10 1985-08-30 Hitachi Ltd Multitrack system pcm recorder
JPH06267195A (en) * 1992-11-20 1994-09-22 Internatl Business Mach Corp <Ibm> Disc-drive of redundant recording
JPH08241572A (en) * 1996-03-29 1996-09-17 Sony Corp Optical disk medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60167165A (en) * 1984-02-10 1985-08-30 Hitachi Ltd Multitrack system pcm recorder
JPH06267195A (en) * 1992-11-20 1994-09-22 Internatl Business Mach Corp <Ibm> Disc-drive of redundant recording
JPH08241572A (en) * 1996-03-29 1996-09-17 Sony Corp Optical disk medium

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