ES441682A1 - Un centro de conmutacion electronica para un sistema de co- municaciones. - Google Patents
Un centro de conmutacion electronica para un sistema de co- municaciones.Info
- Publication number
- ES441682A1 ES441682A1 ES441682A ES441682A ES441682A1 ES 441682 A1 ES441682 A1 ES 441682A1 ES 441682 A ES441682 A ES 441682A ES 441682 A ES441682 A ES 441682A ES 441682 A1 ES441682 A1 ES 441682A1
- Authority
- ES
- Spain
- Prior art keywords
- transmitter
- signal
- receiver
- generator
- signals
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7434275A FR2287820A1 (fr) | 1974-10-11 | 1974-10-11 | Centre de commutation electronique pour systeme de telecommunication |
Publications (1)
Publication Number | Publication Date |
---|---|
ES441682A1 true ES441682A1 (es) | 1977-04-01 |
Family
ID=9144004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES441682A Expired ES441682A1 (es) | 1974-10-11 | 1975-10-10 | Un centro de conmutacion electronica para un sistema de co- municaciones. |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5214305A (ja) |
BE (1) | BE834419R (ja) |
BR (1) | BR7506506A (ja) |
ES (1) | ES441682A1 (ja) |
FR (1) | FR2287820A1 (ja) |
IT (1) | IT1043197B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53146787U (ja) * | 1977-04-23 | 1978-11-18 | ||
KR870004587A (ko) * | 1985-10-16 | 1987-05-11 | 엘리 와이스 | 무선 근거리 통신 장치 |
GB8700458D0 (en) * | 1987-01-09 | 1987-02-11 | Unvala Ltd | Communications systems |
GB9523002D0 (en) * | 1995-11-09 | 1996-01-10 | Raychem Ltd | Flame-retarded adhesive composition |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3475558A (en) * | 1964-09-01 | 1969-10-28 | Magnavox Co | Time gated pseudonoise multiplexing system |
US3715508A (en) * | 1967-09-15 | 1973-02-06 | Ibm | Switching circuits employing orthogonal and quasi-orthogonal pseudo-random code sequences |
-
1974
- 1974-10-11 FR FR7434275A patent/FR2287820A1/fr active Granted
-
1975
- 1975-10-06 BR BR7506506*A patent/BR7506506A/pt unknown
- 1975-10-08 IT IT28066/75A patent/IT1043197B/it active
- 1975-10-08 JP JP50120849A patent/JPS5214305A/ja active Granted
- 1975-10-10 ES ES441682A patent/ES441682A1/es not_active Expired
- 1975-10-13 BE BE2054616A patent/BE834419R/xx active
Also Published As
Publication number | Publication date |
---|---|
FR2287820A1 (fr) | 1976-05-07 |
JPS5214305A (en) | 1977-02-03 |
BR7506506A (pt) | 1976-08-17 |
FR2287820B1 (ja) | 1979-07-06 |
IT1043197B (it) | 1980-02-20 |
JPS564076B2 (ja) | 1981-01-28 |
BE834419R (fr) | 1976-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1318952A (en) | Remote control system for a pcm transmission system | |
US2861257A (en) | Power line relaying | |
US1742902A (en) | Multichannel radio communication system | |
ES441682A1 (es) | Un centro de conmutacion electronica para un sistema de co- municaciones. | |
US1592940A (en) | Secret signaling | |
GB1129882A (en) | Communication system | |
US2438902A (en) | Pulse multiplex system employing fixed pulse-time displacement for signaling | |
GB1499232A (en) | Telephone set and system | |
US1464565A (en) | Call system for radiotelephony | |
GB1509244A (en) | High voltage current converters | |
GB970315A (en) | Circuit arrangement for sending and receiving code signals | |
GB1493869A (en) | Circuit arrangements including amplifiers | |
DE3069003D1 (en) | Communication equipment | |
JPS56157150A (en) | Composite digital communication system | |
GB851810A (en) | Improvements in or relating to amplitude compression and expansion arrangements in communication systems | |
JPS6486722A (en) | Power line communication equipment | |
JPS5449002A (en) | Secret communication system | |
GB351991A (en) | Improvements in or relating to carrier wave signalling systems | |
ES371179A1 (es) | Metodo de transmision de datos. | |
JPS51112210A (en) | Mobile communication equipment | |
GB753645A (en) | Improvements in or relating to electric pulse modulating and demodulating circuits | |
FR2232155A1 (en) | Four gate hybrid duplexer - for transmitters and receivers using the same antennae | |
SU1840150A1 (ru) | Система спутниковой связи | |
Smith | A medium-haul carrier telephone system | |
JPS51112211A (en) | Mobile communication equipment |