NL6508451A - - Google Patents
Info
- Publication number
- NL6508451A NL6508451A NL6508451A NL6508451A NL6508451A NL 6508451 A NL6508451 A NL 6508451A NL 6508451 A NL6508451 A NL 6508451A NL 6508451 A NL6508451 A NL 6508451A NL 6508451 A NL6508451 A NL 6508451A
- Authority
- NL
- Netherlands
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
- G11B20/1419—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)
- Digital Magnetic Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US381121A US3404391A (en) | 1964-07-08 | 1964-07-08 | Binary digit discriminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6508451A true NL6508451A (xx) | 1966-01-10 |
Family
ID=23503765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6508451A NL6508451A (xx) | 1964-07-08 | 1965-07-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3404391A (xx) |
| DE (1) | DE1474317A1 (xx) |
| GB (1) | GB1051518A (xx) |
| NL (1) | NL6508451A (xx) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3719934A (en) * | 1967-09-18 | 1973-03-06 | Burroughs Corp | System for processing signals having peaks indicating binary data |
| FR1584497A (xx) * | 1968-03-22 | 1969-12-26 | ||
| US3711843A (en) * | 1970-04-27 | 1973-01-16 | Olivetti & Co Spa | Self-adapting synchronization system for reading information from a moving support |
| US3761906A (en) * | 1971-01-08 | 1973-09-25 | Cogar Corp | Tape system |
| US3735372A (en) * | 1971-07-02 | 1973-05-22 | Mohawk Data Sciences Corp | Seven or nine channel readout with adjustable threshold |
| US3870870A (en) * | 1971-07-29 | 1975-03-11 | Potter Instrument Co Inc | Decoder for high density decoding system |
| US4012785A (en) * | 1976-02-13 | 1977-03-15 | Shugart Associates, Inc. | Magnetic recording playback circuit |
| US4152731A (en) * | 1977-12-20 | 1979-05-01 | Motorola, Inc. | Read circuit for distinguishing false peaks in an alternating current playback signal |
| FR2432246A1 (fr) * | 1978-07-26 | 1980-02-22 | Cit Alcatel | Procede et circuit de decodage d'un signal binaire code en cmi |
| GB2057226B (en) * | 1979-07-10 | 1984-02-22 | Mfe Ltd | Decoding mfm data signals |
| JPS57124954A (en) * | 1981-01-26 | 1982-08-04 | Victor Co Of Japan Ltd | Data playback circuit |
| JPS58158039A (ja) * | 1982-03-15 | 1983-09-20 | Toshiba Corp | 光ディスクの記録再生装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3243580A (en) * | 1960-12-06 | 1966-03-29 | Sperry Rand Corp | Phase modulation reading system |
| US3164815A (en) * | 1962-06-29 | 1965-01-05 | Ibm | Digital data detection circuitry |
-
0
- GB GB1051518D patent/GB1051518A/en not_active Expired
-
1964
- 1964-07-08 US US381121A patent/US3404391A/en not_active Expired - Lifetime
-
1965
- 1965-07-01 NL NL6508451A patent/NL6508451A/xx unknown
- 1965-07-07 DE DE19651474317 patent/DE1474317A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1051518A (xx) | 1900-01-01 |
| DE1474317A1 (de) | 1969-07-10 |
| US3404391A (en) | 1968-10-01 |