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ES8201385A1 - Improvements in or relating to circuit arrangements for restoring overload channels in digital voice interpolation systems of TDMA systems - Google Patents

Improvements in or relating to circuit arrangements for restoring overload channels in digital voice interpolation systems of TDMA systems

Info

Publication number
ES8201385A1
ES8201385A1 ES496602A ES496602A ES8201385A1 ES 8201385 A1 ES8201385 A1 ES 8201385A1 ES 496602 A ES496602 A ES 496602A ES 496602 A ES496602 A ES 496602A ES 8201385 A1 ES8201385 A1 ES 8201385A1
Authority
ES
Spain
Prior art keywords
overload
bit
channel
systems
restoring
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
ES496602A
Other languages
Spanish (es)
Other versions
ES496602A0 (en
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.)
Italtel SpA
Original Assignee
Italtel SpA
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 Italtel SpA filed Critical Italtel SpA
Publication of ES8201385A1 publication Critical patent/ES8201385A1/en
Publication of ES496602A0 publication Critical patent/ES496602A0/en
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/212—Time-division multiple access [TDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/177—Freeze-out systems, e.g. taking away active sources from transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Radio Relay Systems (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

A circuit arrangement ME is provided for restoring overload channels in the receiving section of an earth digital voice interpolation- type interface module. A binary configuration indicating a given signal sample, which includes a bit for an overload channel, is transferred to a respective line in a random access memory RAM1-RAM6 during the first half of the channel time. A bit for an overload channel is stored in the second half of the channel time. When the next following binary configuration is received, the overload channel bit is shifted to the left by one position and a second bit is stored in the position previously occupied by it. Upon receiving further binary configurations, the previously stored bits are further shifted to the left until reception of the bits relating to the overload channel has finished.
ES496602A 1979-12-03 1980-11-06 IMPROVEMENTS IN CIRCUITAL PROVISIONS ABLE TO REBUILD OVERLOAD CHANNELS Granted ES496602A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7927778A IT1209150B (en) 1979-12-03 1979-12-03 SATELLITE TDMA, SUITABLE FOR RECONSTRUCTING THE CIRCUIT ARRANGEMENT OF THE OVERLOAD CHANNELS. PARTICULAR APPLICATION IN THE RECEIVING SECTION OF A TERRESTRIAL INTERFACE MODULE, PART OF A VIA TRANSMISSION SYSTEM

Publications (2)

Publication Number Publication Date
ES8201385A1 true ES8201385A1 (en) 1981-12-16
ES496602A0 ES496602A0 (en) 1981-12-16

Family

ID=11222311

Family Applications (1)

Application Number Title Priority Date Filing Date
ES496602A Granted ES496602A0 (en) 1979-12-03 1980-11-06 IMPROVEMENTS IN CIRCUITAL PROVISIONS ABLE TO REBUILD OVERLOAD CHANNELS

Country Status (14)

Country Link
JP (1) JPS56100535A (en)
AR (1) AR225327A1 (en)
AU (1) AU6498780A (en)
BE (1) BE886442A (en)
BR (1) BR8007836A (en)
DE (1) DE3045627A1 (en)
ES (1) ES496602A0 (en)
FR (1) FR2485302A1 (en)
GB (1) GB2065423A (en)
GR (1) GR71006B (en)
IT (1) IT1209150B (en)
PT (1) PT72137B (en)
SE (1) SE8008443L (en)
TR (1) TR20926A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH577253A5 (en) * 1974-05-17 1976-06-30 Ibm
US4009344A (en) * 1974-12-30 1977-02-22 International Business Machines Corporation Inter-related switching, activity compression and demand assignment
US4009347A (en) * 1974-12-30 1977-02-22 International Business Machines Corporation Modular branch exchange and nodal access units for multiple access systems
US4009345A (en) * 1974-12-30 1977-02-22 International Business Machines Corporation External management of satellite linked exchange network
US4095052A (en) * 1977-08-02 1978-06-13 Bell Telephone Laboratories, Incorporated Digital speech interpolation trunk priority rotator

Also Published As

Publication number Publication date
DE3045627A1 (en) 1981-08-27
AU6498780A (en) 1981-06-11
GR71006B (en) 1983-03-31
ES496602A0 (en) 1981-12-16
IT7927778A0 (en) 1979-12-03
PT72137A (en) 1980-12-31
FR2485302A1 (en) 1981-12-24
TR20926A (en) 1983-01-11
JPS56100535A (en) 1981-08-12
BR8007836A (en) 1981-06-16
IT1209150B (en) 1989-07-10
PT72137B (en) 1982-01-05
SE8008443L (en) 1981-06-04
BE886442A (en) 1981-04-01
AR225327A1 (en) 1982-03-15
GB2065423A (en) 1981-06-24

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