BE897350A - Arrangement de circuit pour la transmission analogique de signaux de conversation et de commande, - Google Patents

Arrangement de circuit pour la transmission analogique de signaux de conversation et de commande, Download PDF

Info

Publication number
BE897350A
BE897350A BE2/60166A BE2060166A BE897350A BE 897350 A BE897350 A BE 897350A BE 2/60166 A BE2/60166 A BE 2/60166A BE 2060166 A BE2060166 A BE 2060166A BE 897350 A BE897350 A BE 897350A
Authority
BE
Belgium
Prior art keywords
circuit
wire
under
duration
modulated
Prior art date
Application number
BE2/60166A
Other languages
English (en)
French (fr)
Inventor
E Naiwirt
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of BE897350A publication Critical patent/BE897350A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/587—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using opto-couplers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0096—Trunk circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/50—Conversion between different kinds of signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Amplifiers (AREA)
  • Small-Scale Networks (AREA)
  • Interface Circuits In Exchanges (AREA)
BE2/60166A 1982-07-22 1983-07-22 Arrangement de circuit pour la transmission analogique de signaux de conversation et de commande, BE897350A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT283982A AT384337B (de) 1982-07-22 1982-07-22 Schnittstellenschaltung mit zweidraht-vierdraht- umsetzung fuer fernsprechvermittlungsanlagen

Publications (1)

Publication Number Publication Date
BE897350A true BE897350A (fr) 1984-01-23

Family

ID=3541110

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60166A BE897350A (fr) 1982-07-22 1983-07-22 Arrangement de circuit pour la transmission analogique de signaux de conversation et de commande,

Country Status (9)

Country Link
AT (1) AT384337B (de)
AU (1) AU1692883A (de)
BE (1) BE897350A (de)
CH (1) CH662023A5 (de)
DE (1) DE3326037A1 (de)
ES (1) ES524385A0 (de)
FI (1) FI79431C (de)
GB (1) GB2126049B (de)
MX (1) MX154966A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3841814C2 (de) * 1988-12-12 1995-05-24 Ferenc J Horvath Verbindungsschaltung
ES2048683B1 (es) * 1992-11-19 1997-07-01 Univ Cordoba Sistema de optoacoplamiento de señales digitales electricas para proteccion y aislamiento de aparatos electronicos de sobretensiones estacionarias y transitorias.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305080A1 (fr) * 1975-03-20 1976-10-15 Jeumont Schneider Termineur electronique
US4150260A (en) * 1975-06-18 1979-04-17 Hitachi, Ltd. Subscriber's circuit for four-wire-system local switch
CH599731A5 (de) * 1976-03-02 1978-05-31 Ibm
US4142075A (en) * 1977-10-11 1979-02-27 Burr-Brown Research Corporation Interface circuit and method for telephone extension lines
NL7802423A (nl) * 1978-03-06 1979-09-10 Philips Nv Voedingsinrichting voor een lijnstroomloop.
CH641299A5 (de) * 1978-11-13 1984-02-15 Landis & Gyr Ag Impulsdauer-pausendauer-modulator fuer messzwecke.

Also Published As

Publication number Publication date
FI79431B (fi) 1989-08-31
ES8500689A1 (es) 1984-08-01
CH662023A5 (de) 1987-08-31
GB2126049A (en) 1984-03-14
FI832645A0 (fi) 1983-07-20
ES524385A0 (es) 1984-08-01
GB2126049B (en) 1985-10-02
FI832645A (fi) 1984-01-23
DE3326037A1 (de) 1984-01-26
AT384337B (de) 1987-10-27
AU1692883A (en) 1984-01-26
ATA283982A (de) 1987-03-15
DE3326037C2 (de) 1990-09-06
MX154966A (es) 1988-01-14
GB8319839D0 (en) 1983-08-24
FI79431C (fi) 1989-12-11

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: ALCATEL N.V.

Effective date: 19880731