GB2155282B - Multi-function data signal processing method and apparatus - Google Patents
Multi-function data signal processing method and apparatusInfo
- Publication number
- GB2155282B GB2155282B GB08502576A GB8502576A GB2155282B GB 2155282 B GB2155282 B GB 2155282B GB 08502576 A GB08502576 A GB 08502576A GB 8502576 A GB8502576 A GB 8502576A GB 2155282 B GB2155282 B GB 2155282B
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal processing
- processing method
- data signal
- function data
- function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
-
- 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
-
- 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)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50219883A | 1983-06-08 | 1983-06-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8502576D0 GB8502576D0 (en) | 1985-03-06 |
GB2155282A GB2155282A (en) | 1985-09-18 |
GB2155282B true GB2155282B (en) | 1987-02-18 |
Family
ID=23996781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08502576A Expired GB2155282B (en) | 1983-06-08 | 1984-05-10 | Multi-function data signal processing method and apparatus |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS60501533A (en) |
CA (1) | CA1226067A (en) |
GB (1) | GB2155282B (en) |
WO (1) | WO1984005002A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6180932A (en) * | 1984-09-28 | 1986-04-24 | Nec Corp | Msk type modulating method |
JPH0685535B2 (en) * | 1985-10-26 | 1994-10-26 | 日本電気株式会社 | Quadrature phase modulation encoder |
NL8601114A (en) * | 1986-05-01 | 1987-12-01 | Philips Nv | TRANSMISSION SYSTEM FOR THE TRANSFER OF DATA BITS. |
JPH02143740A (en) * | 1988-11-25 | 1990-06-01 | Nec Corp | Modulator |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3183442A (en) * | 1959-10-09 | 1965-05-11 | Westinghouse Electric Corp | Phaseproof pulse signal transmission system utilizing binary to quaternary conversion means |
US3048784A (en) * | 1959-10-09 | 1962-08-07 | Westinghouse Electric Corp | Binary input-a. c. wave output selector using bipolar generator, integrator, and low pass filter |
US3962647A (en) * | 1974-09-27 | 1976-06-08 | The Bendix Corporation | Biphase waveform generator using shift registers |
JPS53108358A (en) * | 1977-03-04 | 1978-09-21 | Fujitsu Ltd | Generation system of optional wavefor |
JPS5799851A (en) * | 1980-12-13 | 1982-06-21 | Usac Electronics Ind Co Ltd | Signal transmission system |
US4410955A (en) * | 1981-03-30 | 1983-10-18 | Motorola, Inc. | Method and apparatus for digital shaping of a digital data stream |
-
1984
- 1984-05-10 WO PCT/US1984/000700 patent/WO1984005002A1/en unknown
- 1984-05-10 JP JP50200084A patent/JPS60501533A/en active Pending
- 1984-05-10 GB GB08502576A patent/GB2155282B/en not_active Expired
- 1984-05-31 CA CA000455564A patent/CA1226067A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS60501533A (en) | 1985-09-12 |
GB8502576D0 (en) | 1985-03-06 |
WO1984005002A1 (en) | 1984-12-20 |
CA1226067A (en) | 1987-08-25 |
GB2155282A (en) | 1985-09-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20030510 |