ES8500689A1 - Un circuito para la transmision analogica de voz y la senalizacion de comunicacion - Google Patents

Un circuito para la transmision analogica de voz y la senalizacion de comunicacion

Info

Publication number
ES8500689A1
ES8500689A1 ES524385A ES524385A ES8500689A1 ES 8500689 A1 ES8500689 A1 ES 8500689A1 ES 524385 A ES524385 A ES 524385A ES 524385 A ES524385 A ES 524385A ES 8500689 A1 ES8500689 A1 ES 8500689A1
Authority
ES
Spain
Prior art keywords
comparator
pulse
pulse duration
interface circuit
interface
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
ES524385A
Other languages
English (en)
Spanish (es)
Other versions
ES524385A0 (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 ES524385A0 publication Critical patent/ES524385A0/es
Publication of ES8500689A1 publication Critical patent/ES8500689A1/es
Expired legal-status Critical Current

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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Small-Scale Networks (AREA)
  • Interface Circuits In Exchanges (AREA)
ES524385A 1982-07-22 1983-07-22 Un circuito para la transmision analogica de voz y la senalizacion de comunicacion Expired ES8500689A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0283982A AT384337B (de) 1982-07-22 1982-07-22 Schnittstellenschaltung mit zweidraht-vierdraht- umsetzung fuer fernsprechvermittlungsanlagen

Publications (2)

Publication Number Publication Date
ES524385A0 ES524385A0 (es) 1984-08-01
ES8500689A1 true ES8500689A1 (es) 1984-08-01

Family

ID=3541110

Family Applications (1)

Application Number Title Priority Date Filing Date
ES524385A Expired ES8500689A1 (es) 1982-07-22 1983-07-22 Un circuito para la transmision analogica de voz y la senalizacion de comunicacion

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) ES8500689A1 (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
AU1692883A (en) 1984-01-26
MX154966A (es) 1988-01-14
GB8319839D0 (en) 1983-08-24
FI832645A0 (fi) 1983-07-20
BE897350A (fr) 1984-01-23
ES524385A0 (es) 1984-08-01
DE3326037C2 (de) 1990-09-06
GB2126049A (en) 1984-03-14
FI79431B (fi) 1989-08-31
FI832645L (fi) 1984-01-23
ATA283982A (de) 1987-03-15
CH662023A5 (de) 1987-08-31
FI79431C (fi) 1989-12-11
GB2126049B (en) 1985-10-02
DE3326037A1 (de) 1984-01-26
AT384337B (de) 1987-10-27

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960506