SE336248B - - Google Patents
Info
- Publication number
- SE336248B SE336248B SE02724/66A SE272466A SE336248B SE 336248 B SE336248 B SE 336248B SE 02724/66 A SE02724/66 A SE 02724/66A SE 272466 A SE272466 A SE 272466A SE 336248 B SE336248 B SE 336248B
- Authority
- SE
- Sweden
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US436764A US3405403A (en) | 1965-03-03 | 1965-03-03 | Readback circuits for information storage systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE336248B true SE336248B (US20020095090A1-20020718-M00002.png) | 1971-06-28 |
Family
ID=23733740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE02724/66A SE336248B (US20020095090A1-20020718-M00002.png) | 1965-03-03 | 1966-03-02 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3405403A (US20020095090A1-20020718-M00002.png) |
| GB (1) | GB1141704A (US20020095090A1-20020718-M00002.png) |
| SE (1) | SE336248B (US20020095090A1-20020718-M00002.png) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3631424A (en) * | 1969-07-22 | 1971-12-28 | Honeywell Inc | Binary data detecting apparatus responsive to the change in sign of the slope of a waveform |
| US3659276A (en) * | 1970-07-08 | 1972-04-25 | Ampex | Angle modulated wave demodulation apparatus |
| US4244008A (en) * | 1979-07-30 | 1981-01-06 | Siemens Corporation | Read back compensation circuit for a magnetic recording device |
| EP0059559A1 (en) * | 1981-02-20 | 1982-09-08 | Elcomatic Limited | Improvements in digital magnet recording |
| US4510536A (en) * | 1982-07-16 | 1985-04-09 | Discovision Associates | Signal conditioning method and apparatus for FM code signal |
| GB8328641D0 (en) * | 1983-10-26 | 1983-11-30 | Elcomatic Ltd | Digital magnetic recording |
-
1965
- 1965-03-03 US US436764A patent/US3405403A/en not_active Expired - Lifetime
-
1966
- 1966-02-11 GB GB6102/66A patent/GB1141704A/en not_active Expired
- 1966-03-02 SE SE02724/66A patent/SE336248B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1141704A (en) | 1969-01-29 |
| DE1499839B2 (de) | 1972-12-14 |
| US3405403A (en) | 1968-10-08 |
| DE1499839A1 (de) | 1970-04-30 |
