FR2276745A2 - Systeme pour la conversion numerique de signaux de canaux en bande de base en un signal multiplex a repartition en frequence et inversement - Google Patents
Systeme pour la conversion numerique de signaux de canaux en bande de base en un signal multiplex a repartition en frequence et inversementInfo
- Publication number
- FR2276745A2 FR2276745A2 FR7422641A FR7422641A FR2276745A2 FR 2276745 A2 FR2276745 A2 FR 2276745A2 FR 7422641 A FR7422641 A FR 7422641A FR 7422641 A FR7422641 A FR 7422641A FR 2276745 A2 FR2276745 A2 FR 2276745A2
- Authority
- FR
- France
- Prior art keywords
- signals
- digital
- frequency
- coefficients
- inputs
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J4/00—Combined time-division and frequency-division multiplex systems
- H04J4/005—Transmultiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
- H04J1/05—Frequency-transposition arrangements using digital techniques
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Complex Calculations (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7422641A FR2276745A2 (fr) | 1972-06-15 | 1974-06-28 | Systeme pour la conversion numerique de signaux de canaux en bande de base en un signal multiplex a repartition en frequence et inversement |
GB26317/75A GB1517172A (en) | 1974-06-28 | 1975-06-20 | Telecommunication system |
US05/588,854 US4312062A (en) | 1974-06-28 | 1975-06-20 | System for digitally converting baseband channel signals into a frequency-division multiplex signal and vice versa |
SE7507273A SE424797B (sv) | 1974-06-28 | 1975-06-25 | Kopplingsanordning for digital behandling av ett givet antal kanalsignaler |
JP50079478A JPS5119433A (en) | 1974-06-28 | 1975-06-27 | Tansokuhataihoshiki |
DE2528946A DE2528946C3 (de) | 1974-06-28 | 1975-06-28 | Anordnung zur digitalen Umwandlung von Basisbandkanalsignalen in ein Frequenzmultiplexsignal und umgekehrt |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7221646A FR2188920A5 (ja) | 1972-06-15 | 1972-06-15 | |
FR7422641A FR2276745A2 (fr) | 1972-06-15 | 1974-06-28 | Systeme pour la conversion numerique de signaux de canaux en bande de base en un signal multiplex a repartition en frequence et inversement |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2276745A2 true FR2276745A2 (fr) | 1976-01-23 |
FR2276745B2 FR2276745B2 (ja) | 1978-01-13 |
Family
ID=26217165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7422641A Granted FR2276745A2 (fr) | 1972-06-15 | 1974-06-28 | Systeme pour la conversion numerique de signaux de canaux en bande de base en un signal multiplex a repartition en frequence et inversement |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2276745A2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2408253A1 (fr) * | 1977-11-07 | 1979-06-01 | Communications Satellite Corp | Transmultiplexeur notamment pour communications par satellite |
EP0280161A2 (en) * | 1987-02-17 | 1988-08-31 | Nec Corporation | FDM demultiplexer using oversampled digital filters |
-
1974
- 1974-06-28 FR FR7422641A patent/FR2276745A2/fr active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2408253A1 (fr) * | 1977-11-07 | 1979-06-01 | Communications Satellite Corp | Transmultiplexeur notamment pour communications par satellite |
EP0280161A2 (en) * | 1987-02-17 | 1988-08-31 | Nec Corporation | FDM demultiplexer using oversampled digital filters |
EP0280161A3 (en) * | 1987-02-17 | 1990-12-12 | Nec Corporation | Fdm demultiplexer using oversampled digital filters |
Also Published As
Publication number | Publication date |
---|---|
FR2276745B2 (ja) | 1978-01-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS554691A (en) | Tree-type coupled logic circuit | |
FR2276745A2 (fr) | Systeme pour la conversion numerique de signaux de canaux en bande de base en un signal multiplex a repartition en frequence et inversement | |
JPS5537099A (en) | A-d converter | |
GB1437205A (en) | Digital equipment for forming a frequency multiplex system | |
JPS5231630A (en) | Test ethod of digital equipment | |
GB1412010A (en) | Electrical filter | |
JPS5558644A (en) | Data transmission system | |
JPS5457947A (en) | Digital binary-ternary converter circuit | |
FR2253333A2 (en) | Equal side-band system for digital working | |
JPS5646320A (en) | Digital filter | |
JPS5444816A (en) | Converter for multiple modulation signal | |
JPS562730A (en) | Analogue input device | |
SU731602A1 (ru) | Устройство дл коррекции канала св зи | |
SE7317374L (ja) | ||
JPS5377438A (en) | Digital filter | |
SU575784A1 (ru) | Детектор частотно-модулированных сигналов | |
JPS51143181A (en) | Process controller | |
JPS53139968A (en) | A-d convertor | |
JPS5542477A (en) | Modulator for single-side-band frequency-division multiple signal | |
JPS5439532A (en) | Input and output circuit of isolation type | |
JPS56128019A (en) | Parallel analog-digital converting circuit | |
JPS5566131A (en) | Integrated circuit | |
FR2436397A2 (fr) | Montage comportant un organe de transmission non lineaire possedant une zone morte pour la suppression de la composante parasite de signaux de mesure parasites | |
JPS56125131A (en) | Digital processing type transceiver for quadrature multiplex signal | |
ES8306551A1 (es) | Perfeccionamientos en un demodulador digital de senales moduladas en frecuencia. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licenses |