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)
• Manipulation Of Pulses (AREA)
• Signal Processing For Digital Recording And Reproducing (AREA)
• Digital Magnetic Recording (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10409178

Family Applications (1)

Country Status (9)

Families Citing this family (2)

• 1967
  • 1967-08-26 GB GB39369/67A patent/GB1126160A/en not_active Expired
• 1968
  • 1968-06-04 US US734287A patent/US3567960A/en not_active Expired - Lifetime
  • 1968-07-23 NL NL6810378A patent/NL6810378A/xx not_active Application Discontinuation
  • 1968-07-29 FR FR1576122D patent/FR1576122A/fr not_active Expired
  • 1968-08-05 BE BE719073D patent/BE719073A/xx unknown
  • 1968-08-23 CH CH1270568A patent/CH499240A/de not_active IP Right Cessation
  • 1968-08-26 AT AT830068A patent/AT283783B/de active
  • 1968-08-26 SE SE6811471A patent/SE384591B/xx unknown
• 1969
  • 1969-09-26 ES ES356622A patent/ES356622A1/es not_active Expired

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