ES441682A1 - Telecommunication type electronic switching station - Google Patents

Telecommunication type electronic switching station

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
Application number
ES441682A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES441682A1 publication Critical patent/ES441682A1/en
Expired legal-status Critical Current

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)

Abstract

A telecommunication switching equipment can interconnect a number of pairs of terminals. Each terminal is connected to a transmitter and a receiver of signals. The transmitters and the receivers are situated such that each transmitter sends to all the receivers a signal which is practically the same for each transmitter. Each transmitter can generate a pseudo-random coded signal which phase modulates the transmitted useful signal. Each receiver has a demodulator and a correlator whose local signal is phase modulated by a pseudo-random signal supplied by a generator similar to the generator of the transmitter. Each receiver can be controlled by signals such that the generator of coded signal in the transmitter and the generator in the receiver can generate similarly coded signals.
ES441682A 1974-10-11 1975-10-10 Telecommunication type electronic switching station Expired ES441682A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7434275A FR2287820A1 (en) 1974-10-11 1974-10-11 Telecommunication switching equipment - interconnects transmitters and receivers by generating pseudo random coded signals

Publications (1)

Publication Number Publication Date
ES441682A1 true ES441682A1 (en) 1977-04-01

Family

ID=9144004

Family Applications (1)

Application Number Title Priority Date Filing Date
ES441682A Expired ES441682A1 (en) 1974-10-11 1975-10-10 Telecommunication type electronic switching station

Country Status (6)

Country Link
JP (1) JPS5214305A (en)
BE (1) BE834419R (en)
BR (1) BR7506506A (en)
ES (1) ES441682A1 (en)
FR (1) FR2287820A1 (en)
IT (1) IT1043197B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146787U (en) * 1977-04-23 1978-11-18
KR870004587A (en) * 1985-10-16 1987-05-11 엘리 와이스 Wireless local area network
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS564076B2 (en) 1981-01-28
BR7506506A (en) 1976-08-17
FR2287820A1 (en) 1976-05-07
JPS5214305A (en) 1977-02-03
BE834419R (en) 1976-04-13
IT1043197B (en) 1980-02-20
FR2287820B1 (en) 1979-07-06

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