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
  • G11B20/1419—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 to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass

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• Physics & Mathematics (AREA)
• Nonlinear Science (AREA)
• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Synchronisation In Digital Transmission Systems (AREA)
• Signal Processing For Digital Recording And Reproducing (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=23694485

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Family Cites Families (9)

• 1965
  • 1965-01-22 US US427348A patent/US3390284A/en not_active Expired - Lifetime
• 1966
  • 1966-01-03 FR FR44580A patent/FR1462702A/fr not_active Expired
  • 1966-01-21 CH CH84566A patent/CH459297A/de unknown
  • 1966-01-21 SE SE00780/66A patent/SE335642B/xx unknown
  • 1966-01-21 NL NL666600855A patent/NL153345B/xx not_active IP Right Cessation
  • 1966-01-21 GB GB2779/66A patent/GB1073497A/en not_active Expired

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