BE640781A - - Google Patents
Info
- Publication number
- BE640781A BE640781A BE640781A BE640781A BE640781A BE 640781 A BE640781 A BE 640781A BE 640781 A BE640781 A BE 640781A BE 640781 A BE640781 A BE 640781A BE 640781 A BE640781 A BE 640781A
- Authority
- BE
- Belgium
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
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller 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
- G11B20/1488—Digital recording or reproducing using self-clocking codes characterised by the use of three levels
- G11B20/1492—Digital recording or reproducing using self-clocking codes characterised by the use of three levels two levels are symmetric, in respect of the sign to the third level which is "zero"
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US242456A US3331079A (en) | 1962-12-05 | 1962-12-05 | Apparatus for inhibiting non-significant pulse signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE640781A true BE640781A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1964-04-01 |
Family
ID=22914848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE640781A BE640781A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1962-12-05 | 1963-12-04 |
Country Status (6)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1422148A (fr) * | 1964-10-08 | 1965-12-24 | Electronique & Automatisme Sa | Dispositif permettant d'augmenter la densité de l'écriture sur des supports magnétiques |
| US3603942A (en) * | 1969-01-13 | 1971-09-07 | Ibm | Predifferentiated recording |
| US3683288A (en) * | 1970-07-31 | 1972-08-08 | Texas Instruments Inc | Frequency modulation demodulator |
| US3828167A (en) * | 1972-10-10 | 1974-08-06 | Singer Co | Detector for self-clocking data with variable digit periods |
| NL7801042A (nl) * | 1978-01-30 | 1979-08-01 | Philips Nv | Inrichting voor het koderen/dekoderen van informatie bij gebruik van een medium. |
| GB2079566B (en) | 1980-05-16 | 1985-01-09 | Racal Recorders Ltd | Data encoding and/or decoding |
| US4475212A (en) * | 1981-09-11 | 1984-10-02 | Digital Equipment Corporation | Frequency-independent, self-clocking encoding technique and apparatus for digital communications |
| DE3150417A1 (de) * | 1981-12-19 | 1983-07-07 | Norbert Dipl.-Ing. 8520 Erlangen Bauer | Verfahren und schaltungsanordnung zur aufzeichnung binaerer information auf einen magnetischen informationstraeger |
| US4586091A (en) * | 1984-05-03 | 1986-04-29 | Kalhas Oracle, Inc. | System and method for high density data recording |
| DE4220597C1 (en) * | 1992-06-24 | 1993-05-19 | Micro Technology Gmbh, 6200 Wiesbaden, De | Digital signal coding method e.g. for computer network - generating data pulses with three or more pulse widths dependent on pulse widths and polarities of preceding pulse(s) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE494234A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1949-03-01 | |||
| US2917726A (en) * | 1955-03-25 | 1959-12-15 | Underwood Corp | Magnetic recording system |
-
0
- NL NL301351D patent/NL301351A/xx unknown
-
1962
- 1962-12-05 US US242456A patent/US3331079A/en not_active Expired - Lifetime
-
1963
- 1963-11-21 CH CH1427763A patent/CH412988A/de unknown
- 1963-11-25 GB GB46522/63A patent/GB1003210A/en not_active Expired
- 1963-11-30 DE DE19631449436 patent/DE1449436A1/de active Pending
- 1963-12-04 BE BE640781A patent/BE640781A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH412988A (de) | 1966-05-15 |
| NL301351A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| GB1003210A (en) | 1965-09-02 |
| US3331079A (en) | 1967-07-11 |
| DE1449436A1 (de) | 1969-07-31 |