Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
• • 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

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Signal Processing For Digital Recording And Reproducing (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22787992

Family Applications (1)

Country Status (5)

Families Citing this family (5)

• 0
  • BE BE634316D patent/BE634316A/xx unknown
  • NL NL295627D patent/NL295627A/xx unknown
• 1962
  • 1962-07-23 US US211699A patent/US3191013A/en not_active Expired - Lifetime
• 1963
  • 1963-07-11 GB GB27490/63A patent/GB1010639A/en not_active Expired
  • 1963-07-19 DE DE1449427A patent/DE1449427C3/de not_active Expired

Also Published As

Similar Documents