JPS50125610A - - Google Patents
Info
- Publication number
- JPS50125610A JPS50125610A JP50012615A JP1261575A JPS50125610A JP S50125610 A JPS50125610 A JP S50125610A JP 50012615 A JP50012615 A JP 50012615A JP 1261575 A JP1261575 A JP 1261575A JP S50125610 A JPS50125610 A JP S50125610A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- 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
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2092—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner with digital generation of the modulated carrier (does not include the modulation of a digitally generated carrier)
-
- 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
-
- 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
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2338—Demodulator circuits; Receiver circuits using non-coherent demodulation using sampling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—Demodulator circuits; Receiver circuits
- H04L27/389—Demodulator circuits; Receiver circuits with separate demodulation for the phase and amplitude components
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)
- Dc Digital Transmission (AREA)
- Filters And Equalizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7404772A FR2260904B1 (en:Method) | 1974-02-12 | 1974-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50125610A true JPS50125610A (en:Method) | 1975-10-02 |
| JPS558069B2 JPS558069B2 (en:Method) | 1980-03-01 |
Family
ID=9134830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1261575A Expired JPS558069B2 (en:Method) | 1974-02-12 | 1975-01-31 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS558069B2 (en:Method) |
| FR (1) | FR2260904B1 (en:Method) |
| GB (1) | GB1502363A (en:Method) |
| IT (1) | IT1027871B (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3237619C2 (de) * | 1982-10-11 | 1985-04-18 | Karl Dipl.-Phys. Dr. 3550 Marburg Meinzer | Verfahren und Vorrichtung zur digitalen Datenübertragung |
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1974
- 1974-02-12 FR FR7404772A patent/FR2260904B1/fr not_active Expired
- 1974-12-20 IT IT3079574A patent/IT1027871B/it active
-
1975
- 1975-01-31 JP JP1261575A patent/JPS558069B2/ja not_active Expired
- 1975-02-05 GB GB487575A patent/GB1502363A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2260904B1 (en:Method) | 1976-11-26 |
| IT1027871B (it) | 1978-12-20 |
| DE2501324A1 (de) | 1975-08-14 |
| JPS558069B2 (en:Method) | 1980-03-01 |
| DE2501324B2 (de) | 1976-05-06 |
| GB1502363A (en) | 1978-03-01 |
| FR2260904A1 (en:Method) | 1975-09-05 |