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
• • 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
  • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
  • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof

Landscapes

• 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 (2)

Family

ID=5934093

Family Applications (1)

Country Status (8)

Families Citing this family (1)

• 1974
  • 1974-12-20 DE DE19742460534 patent/DE2460534B2/de active Granted
• 1975
  • 1975-11-07 AT AT848075A patent/AT353515B/de not_active IP Right Cessation
  • 1975-12-05 CH CH1582475A patent/CH597724A5/xx not_active IP Right Cessation
  • 1975-12-16 IT IT3032275A patent/IT1051045B/it active
  • 1975-12-17 GB GB5154175A patent/GB1518700A/en not_active Expired
  • 1975-12-17 FR FR7538640A patent/FR2295514A1/fr active Granted
  • 1975-12-18 NL NL7514781A patent/NL7514781A/xx not_active Application Discontinuation
  • 1975-12-19 BE BE162942A patent/BE836875A/xx unknown

Also Published As

Similar Documents