CA1019843A - Read/write circuits for reliable digital recording - Google Patents

Read/write circuits for reliable digital recording

Info

Publication number
CA1019843A
CA1019843A CA211,613A CA211613A CA1019843A CA 1019843 A CA1019843 A CA 1019843A CA 211613 A CA211613 A CA 211613A CA 1019843 A CA1019843 A CA 1019843A
Authority
CA
Canada
Prior art keywords
read
digital recording
write circuits
reliable digital
reliable
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.)
Expired
Application number
CA211,613A
Other languages
English (en)
Other versions
CA211613S (en
Inventor
Joseph A. Weisbecker
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Priority to CA275,787A priority Critical patent/CA1026009A/en
Application granted granted Critical
Publication of CA1019843A publication Critical patent/CA1019843A/en
Expired 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1415—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol conversion to or from pulse frequency coding
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1411—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol conversion to or from pulse width coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CA211,613A 1973-10-25 1974-10-17 Read/write circuits for reliable digital recording Expired CA1019843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA275,787A CA1026009A (en) 1973-10-25 1977-04-07 Read/write circuits for reliable digital recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US409614A US3881183A (en) 1973-10-25 1973-10-25 Read/write circuits for reliable digital recording

Publications (1)

Publication Number Publication Date
CA1019843A true CA1019843A (en) 1977-10-25

Family

ID=23621260

Family Applications (1)

Application Number Title Priority Date Filing Date
CA211,613A Expired CA1019843A (en) 1973-10-25 1974-10-17 Read/write circuits for reliable digital recording

Country Status (6)

Country Link
US (1) US3881183A (de)
JP (1) JPS50113208A (de)
CA (1) CA1019843A (de)
DE (1) DE2450823A1 (de)
FR (1) FR2249400B1 (de)
GB (1) GB1484317A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112501A (en) * 1976-06-09 1978-09-05 Data General Corporation System and method for loading computer diagnostic programs
US4183028A (en) * 1978-09-29 1980-01-08 Buckeye International, Inc. High speed data recording arrangement
FR2576122A1 (fr) * 1985-01-16 1986-07-18 Gorbachev Oleg Dispositif d'interface reliant un magnetophone a cassette a un micro-ordinateur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303486A (en) * 1963-11-12 1967-02-07 Ampex Digital frequency shift magnetic recording system
US3573766A (en) * 1969-02-17 1971-04-06 Radiation Inc Apparatus and process for recording binary data in compact form
US3732364A (en) * 1971-04-21 1973-05-08 Hitachi Ltd Magnetic tape recording and reproducing system

Also Published As

Publication number Publication date
GB1484317A (en) 1977-09-01
US3881183A (en) 1975-04-29
JPS50113208A (de) 1975-09-05
DE2450823A1 (de) 1975-05-22
FR2249400B1 (de) 1980-06-06
FR2249400A1 (de) 1975-05-23

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