BE706177A - - Google Patents
Info
- Publication number
- BE706177A BE706177A BE706177DA BE706177A BE 706177 A BE706177 A BE 706177A BE 706177D A BE706177D A BE 706177DA BE 706177 A BE706177 A BE 706177A
- 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
- G11B20/1407—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)
- Digital Magnetic Recording (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59245866A | 1966-11-07 | 1966-11-07 | |
| US67990267A | 1967-11-01 | 1967-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE706177A true BE706177A (xx) | 1968-03-18 |
Family
ID=27081455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE706177D BE706177A (xx) | 1966-11-07 | 1967-11-07 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US3518648A (xx) |
| BE (1) | BE706177A (xx) |
| CH (1) | CH492270A (xx) |
| DE (1) | DE1524922C3 (xx) |
| GB (1) | GB1213011A (xx) |
| NL (1) | NL167257C (xx) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU415174B1 (en) * | 1967-08-04 | 1971-07-15 | THE COMMONWEALTH OF AUSTRALIA Actual Inventor PJ) PAULO'NEILL GILLARD | High density and for high frequency digital recording |
| US3603945A (en) * | 1969-04-21 | 1971-09-07 | Ibm | Signal recovery system utilizing amplitude comparison at the beginning and end of a bit period |
| US3648265A (en) * | 1969-12-30 | 1972-03-07 | Ibm | Magnetic data storage system with interleaved nrzi coding |
| US3699556A (en) * | 1971-04-30 | 1972-10-17 | Singer Co | Digital encoding system wherein information is indicted by transition placement |
| US3733579A (en) * | 1972-04-25 | 1973-05-15 | Hitachi Ltd | Sensing device for digital magnetic memory |
| US4088879A (en) * | 1975-08-04 | 1978-05-09 | Burroughs Corporation | Credit card reader amplifier |
| DE3545601A1 (de) * | 1985-12-21 | 1987-07-02 | Gen Service Electronics Gmbh | Verfahren zur uebertragung von bitsignalen, bitsignalgeber und bitsignalempfaenger zur durchfuehrung des verfahrens sowie nach dem verfahren bespielter aufzeichnungstraeger |
| US6396877B1 (en) * | 1998-01-27 | 2002-05-28 | Agere Systems Guardian Corp. | Method and apparatus for combining serial data with a clock signal |
| US7250815B2 (en) * | 2004-02-25 | 2007-07-31 | Intel Corporation | Amplifier distortion management apparatus, systems, and methods |
| JP2019046523A (ja) * | 2017-09-04 | 2019-03-22 | 株式会社東芝 | 磁気ディスク装置及びライト処理方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3067422A (en) * | 1958-12-24 | 1962-12-04 | Ibm | Phase distortion correction for high density magnetic recording |
| NL283021A (xx) * | 1961-09-11 | 1900-01-01 | ||
| FR1387879A (fr) * | 1963-11-05 | 1965-02-05 | Bull Sa Machines | Arrangement de commande d'écriture en modulation de phase |
| US3356934A (en) * | 1964-11-20 | 1967-12-05 | Ibm | Double frequency recording system |
| US3405391A (en) * | 1964-12-21 | 1968-10-08 | Ibm | Double frequency detection system |
-
1966
- 1966-11-07 US US592458A patent/US3518648A/en not_active Expired - Lifetime
-
1967
- 1967-11-01 US US679902A patent/US3573770A/en not_active Expired - Lifetime
- 1967-11-06 GB GB50276/67A patent/GB1213011A/en not_active Expired
- 1967-11-07 DE DE1524922A patent/DE1524922C3/de not_active Expired
- 1967-11-07 BE BE706177D patent/BE706177A/xx unknown
- 1967-11-07 NL NL6715121.A patent/NL167257C/xx not_active IP Right Cessation
- 1967-11-07 CH CH1554867A patent/CH492270A/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US3573770A (en) | 1971-04-06 |
| NL167257B (nl) | 1981-06-16 |
| DE1524922A1 (de) | 1970-11-26 |
| CH492270A (de) | 1970-06-15 |
| US3518648A (en) | 1970-06-30 |
| GB1213011A (en) | 1970-11-18 |
| NL6715121A (xx) | 1968-05-08 |
| DE1524922B2 (de) | 1978-11-02 |
| DE1524922C3 (de) | 1979-07-05 |
| NL167257C (nl) | 1981-11-16 |