FR1443431A - Système numérique de transmission d'information - Google Patents
Système numérique de transmission d'informationInfo
- Publication number
- FR1443431A FR1443431A FR18314A FR18314A FR1443431A FR 1443431 A FR1443431 A FR 1443431A FR 18314 A FR18314 A FR 18314A FR 18314 A FR18314 A FR 18314A FR 1443431 A FR1443431 A FR 1443431A
- Authority
- FR
- France
- Prior art keywords
- transmission system
- information transmission
- digital information
- digital
- transmission
- 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
- H04L25/4904—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 self-synchronising codes, e.g. split-phase codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
- H04L27/2021—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained
- H04L27/2025—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained in which the phase changes in a piecewise linear manner within each symbol period
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US371429A US3335369A (en) | 1964-06-01 | 1964-06-01 | System for data communication by phase shift of square wave carrier |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1443431A true FR1443431A (fr) | 1966-06-24 |
Family
ID=23463958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR18314A Expired FR1443431A (fr) | 1964-06-01 | 1965-05-25 | Système numérique de transmission d'information |
Country Status (2)
Country | Link |
---|---|
US (1) | US3335369A (fr) |
FR (1) | FR1443431A (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3659202A (en) * | 1970-05-21 | 1972-04-25 | Nippon Electric Co | Data transmission system |
US3659053A (en) * | 1970-11-13 | 1972-04-25 | Nasa | Method and apparatus for frequency-division multiplex communications by digital phase shift of carrier |
GB1381338A (en) * | 1972-05-12 | 1975-01-22 | Post Office | Signal receivers |
GB1368068A (en) * | 1971-10-20 | 1974-09-25 | Post Office | Digital communication systems |
DE2822871A1 (de) * | 1978-05-26 | 1980-02-07 | Bosch Gmbh Robert | Schaltungsanordnung zur phasenmodulation |
US4547738A (en) * | 1983-06-10 | 1985-10-15 | American Standard Inc. | Phase shift demodulator |
US4627073A (en) * | 1984-09-28 | 1986-12-02 | Myriad Concepts, Inc. | Binary data transmission method |
US4908626A (en) * | 1987-01-13 | 1990-03-13 | Itt Corporation | Communication system for radar ground systems |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3142723A (en) * | 1961-11-29 | 1964-07-28 | Bell Telephone Labor Inc | Frequency shift keying system |
US3160812A (en) * | 1961-11-09 | 1964-12-08 | Scantlin Electronics Inc | Composite transmission system utilizing phase shift and amplitude modulation |
-
1964
- 1964-06-01 US US371429A patent/US3335369A/en not_active Expired - Lifetime
-
1965
- 1965-05-25 FR FR18314A patent/FR1443431A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3335369A (en) | 1967-08-08 |
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