ES8703072A1 - Un aparato para la transmision y recepcion de datos digitales sobre un canal de banda limitada. - Google Patents

Un aparato para la transmision y recepcion de datos digitales sobre un canal de banda limitada.

Info

Publication number
ES8703072A1
ES8703072A1 ES542848A ES542848A ES8703072A1 ES 8703072 A1 ES8703072 A1 ES 8703072A1 ES 542848 A ES542848 A ES 542848A ES 542848 A ES542848 A ES 542848A ES 8703072 A1 ES8703072 A1 ES 8703072A1
Authority
ES
Spain
Prior art keywords
transceiver
synchronization
digital
precompensation
transmitted signal
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
ES542848A
Other languages
English (en)
Other versions
ES542848A0 (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.)
DAVID Systems Inc
Original Assignee
DAVID Systems Inc
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 DAVID Systems Inc filed Critical DAVID Systems Inc
Publication of ES8703072A1 publication Critical patent/ES8703072A1/es
Publication of ES542848A0 publication Critical patent/ES542848A0/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
    • H04B1/62—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 for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H04L5/1484—Two-way operation using the same type of signal, i.e. duplex using time-sharing operating bytewise
    • H04L5/1492—Two-way operation using the same type of signal, i.e. duplex using time-sharing operating bytewise with time compression, e.g. operating according to the ping-pong technique
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H04L25/4923—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using ternary codes
    • H04L25/4925—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using ternary codes using balanced bipolar ternary codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Dc Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

APARATO PARA LA TRANSMISION Y RECEPCION DE DATOS DIGITALES SOBRE UN CANAL DE BANDA LIMITADA. COMPRENDE UN TRANSCEPTOR DIGITAL (10) CON UNA ENTRADA QUE COMPRENDE OCHO LINEAS DE DATOS Y TRES LINEAS DE CONTROL ACOPLADAS A OTROS TANTOS REGISTRADORES (12) DE TRANSMISION, QUE ESTAN ACOPLADOS A SU VEZ A UN CONVERTIDOR (14) CUYA SALIDA DE PARALELO EN SERIE SE APLICA A UN CIRCUITO MODULADOR Y PRECOMPENSADOR (16) QUE ES OPERATIVO PARA CONVERTIR SEÑALES DIGITALES EN IMPULSOS DIGITALES, SIENDO GENERADO CADA IMPULSO CON SUFICIENTE ENERGIA PARA OPTIMIZAR LA RELACION DE SEGUIMIENTO ENTRE IMPULSOS CONSECUTIVOS. TIENE UTILIDAD EN SISTEMAS TELEFONICOS DIGITALES.
ES542848A 1984-05-07 1985-05-06 Un aparato para la transmision y recepcion de datos digitales sobre un canal de banda limitada. Expired ES8703072A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/607,998 US4584690A (en) 1984-05-07 1984-05-07 Alternate Mark Invert (AMI) transceiver with switchable detection and digital precompensation

Publications (2)

Publication Number Publication Date
ES8703072A1 true ES8703072A1 (es) 1987-01-16
ES542848A0 ES542848A0 (es) 1987-01-16

Family

ID=24434611

Family Applications (2)

Application Number Title Priority Date Filing Date
ES542848A Expired ES8703072A1 (es) 1984-05-07 1985-05-06 Un aparato para la transmision y recepcion de datos digitales sobre un canal de banda limitada.
ES556900A Expired ES8800551A1 (es) 1984-05-07 1986-07-16 Un aparato para transmitir y recibir datos digitales sobre un canal de banda limitada

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES556900A Expired ES8800551A1 (es) 1984-05-07 1986-07-16 Un aparato para transmitir y recibir datos digitales sobre un canal de banda limitada

Country Status (10)

Country Link
US (1) US4584690A (es)
EP (1) EP0181346A4 (es)
JP (1) JPS60240249A (es)
KR (1) KR890005366B1 (es)
AU (1) AU570111B2 (es)
BR (1) BR8506718A (es)
ES (2) ES8703072A1 (es)
IL (1) IL75068A (es)
WO (1) WO1985005234A1 (es)
ZA (1) ZA853012B (es)

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Also Published As

Publication number Publication date
AU4214685A (en) 1985-11-28
IL75068A (en) 1989-06-30
BR8506718A (pt) 1986-09-23
EP0181346A4 (en) 1986-07-29
JPS60240249A (ja) 1985-11-29
EP0181346A1 (en) 1986-05-21
KR890005366B1 (ko) 1989-12-23
KR850008072A (ko) 1985-12-11
IL75068A0 (en) 1985-09-29
US4584690A (en) 1986-04-22
ZA853012B (en) 1985-12-24
AU570111B2 (en) 1988-03-03
WO1985005234A1 (en) 1985-11-21
ES8800551A1 (es) 1987-10-16
ES542848A0 (es) 1987-01-16
ES556900A0 (es) 1987-10-16

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960401