GB1210405A - Method and apparatus for forming tdm signal bursts for a time division multiple access satellite communications system - Google Patents

Method and apparatus for forming tdm signal bursts for a time division multiple access satellite communications system

Info

Publication number
GB1210405A
GB1210405A GB5149867A GB5149867A GB1210405A GB 1210405 A GB1210405 A GB 1210405A GB 5149867 A GB5149867 A GB 5149867A GB 5149867 A GB5149867 A GB 5149867A GB 1210405 A GB1210405 A GB 1210405A
Authority
GB
United Kingdom
Prior art keywords
station
sampling
time
ground
satellite
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
GB5149867A
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.)
Comsat Corp
Original Assignee
Comsat 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 Comsat Corp filed Critical Comsat Corp
Publication of GB1210405A publication Critical patent/GB1210405A/en
Expired 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
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Glass Compositions (AREA)
  • Peptides Or Proteins (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

1,210,405. Multiplex pulse signalling. COMMUNICATIONS SATELLITE CORP. 13 Nov., 1967 [16 Nov., 1966], No. 51498/67. Heading H4L. In a communication system comprising a plurality of earth stations co-operating with an orbiting satellite relay station, the signals from the channels at the ground stations are arranged to be combined in time division multiplex to form satellite time frames without the use of the usual storage devices at the ground stations. Each ground station includes a sampling switch 18 in which the total number of sampling positions N is equal to the number of channel time slots in a satellite frame. As shown, the ground station is allotted Y positions corresponding to the incoming channels of which only y may be in use, the remaining N-Y time positions being shared by the other ground stations by appropriate connection of their corresponding sampling switches. By this means the signals from each station are transmitted as bursts after coding at 24. The time at which sampling is initiated is synchronized with a master station reference signal. The allotment of channels may be changed as required.
GB5149867A 1966-11-16 1967-11-13 Method and apparatus for forming tdm signal bursts for a time division multiple access satellite communications system Expired GB1210405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59481766A 1966-11-16 1966-11-16

Publications (1)

Publication Number Publication Date
GB1210405A true GB1210405A (en) 1970-10-28

Family

ID=24380528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5149867A Expired GB1210405A (en) 1966-11-16 1967-11-13 Method and apparatus for forming tdm signal bursts for a time division multiple access satellite communications system

Country Status (5)

Country Link
BE (1) BE706552A (en)
DE (1) DE1591069C3 (en)
GB (1) GB1210405A (en)
NL (1) NL159838B (en)
SE (1) SE348344B (en)

Also Published As

Publication number Publication date
DE1591069A1 (en) 1970-08-20
BE706552A (en) 1968-03-18
SE348344B (en) 1972-08-28
NL159838B (en) 1979-03-15
DE1591069B2 (en) 1979-05-10
DE1591069C3 (en) 1980-01-03
NL6715148A (en) 1968-05-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee