DK163627C - DIGITAL SIGNAL TRANSMISSION SYSTEM, NAME FOR SATELLITE RADIO - Google Patents

DIGITAL SIGNAL TRANSMISSION SYSTEM, NAME FOR SATELLITE RADIO

Info

Publication number
DK163627C
DK163627C DK309185A DK309185A DK163627C DK 163627 C DK163627 C DK 163627C DK 309185 A DK309185 A DK 309185A DK 309185 A DK309185 A DK 309185A DK 163627 C DK163627 C DK 163627C
Authority
DK
Denmark
Prior art keywords
subframe
digital signal
synchronization word
transmission system
signal transmission
Prior art date
Application number
DK309185A
Other languages
Danish (da)
Other versions
DK309185D0 (en
DK163627B (en
DK309185A (en
Inventor
Otto Klank
Dieter Rottmann
Original Assignee
Telefunken Fernseh & Rundfunk
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 Telefunken Fernseh & Rundfunk filed Critical Telefunken Fernseh & Rundfunk
Publication of DK309185D0 publication Critical patent/DK309185D0/en
Publication of DK309185A publication Critical patent/DK309185A/en
Publication of DK163627B publication Critical patent/DK163627B/en
Application granted granted Critical
Publication of DK163627C publication Critical patent/DK163627C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

1. A digital signal transmission system, particularly for satellite broadcasting, wherein data sequences are transmitted successively in time over two simultaneous transmission channels (I, Q) within a subframe (A, B) in each case and at the beginning of a subframe (A, B), a synchronization word with a plurality of bits is transmitted, wherein the subframes (A, B) can appear transposed in relation to the transmission channels (I, Q) due to different approaches in the up-conversion and/or down-conversion of the D-PSK-modulated r.f. signals, characterised in that means are provided in such a manner that a first synchronization word is used for the first subframe (A) and another synchronization word is used for the second subframe (B), that, in the receiver, during a search operation with a synchronization word decoding circuit (1, 2, 3; 4, 5, 6), a control signal distinguishing the appurtenance to a channel is generated, and that a channel switch (23; 24) is provided via which the subframes (A, B) are fed to the appurtenant following digital signal processing stages.
DK309185A 1984-07-07 1985-07-05 DIGITAL SIGNAL TRANSMISSION SYSTEM, NAME FOR SATELLITE RADIO DK163627C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843425069 DE3425069A1 (en) 1984-07-07 1984-07-07 DIGITAL SIGNAL TRANSMISSION SYSTEM, IN PARTICULAR FOR SATELLITE BROADCASTING
DE3425069 1984-07-07

Publications (4)

Publication Number Publication Date
DK309185D0 DK309185D0 (en) 1985-07-05
DK309185A DK309185A (en) 1986-01-08
DK163627B DK163627B (en) 1992-03-16
DK163627C true DK163627C (en) 1992-08-17

Family

ID=6240079

Family Applications (1)

Application Number Title Priority Date Filing Date
DK309185A DK163627C (en) 1984-07-07 1985-07-05 DIGITAL SIGNAL TRANSMISSION SYSTEM, NAME FOR SATELLITE RADIO

Country Status (5)

Country Link
EP (1) EP0167849B1 (en)
JP (1) JPS6135041A (en)
AT (1) ATE57805T1 (en)
DE (2) DE3425069A1 (en)
DK (1) DK163627C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3522859A1 (en) * 1985-06-26 1987-01-08 Siemens Ag Narrowband transmission method for a digital mobile radio system
DE3642982A1 (en) * 1986-12-17 1988-06-30 Thomson Brandt Gmbh TRANSMISSION SYSTEM
GB2187066A (en) * 1987-02-20 1987-08-26 Plessey Co Plc Time division multiplexed signalling
ES2068872T3 (en) * 1988-11-28 1995-05-01 Motorola As METHOD FOR DETERMINING THE INSTANT OF RECEPTION OF A SIGNAL THROUGH A CORRELATION TECHNIQUE.
KR100251641B1 (en) * 1996-05-13 2000-04-15 김영환 Circuit for arranging channels

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136833A (en) * 1981-02-17 1982-08-24 Sony Corp Time-division multiplex data transmitting method
US4370648A (en) * 1981-03-31 1983-01-25 Siemens Corporation Synchronizing circuit for use with a telecommunication system
JPS5851193A (en) * 1981-09-22 1983-03-25 Mitsubishi Paper Mills Ltd Duplicate material for thermal recording
US4599720A (en) * 1982-07-06 1986-07-08 International Business Machines Corporation Satellite communications system
JPS61130198A (en) * 1984-11-29 1986-06-18 三菱重工業株式会社 Distributing material hanger

Also Published As

Publication number Publication date
ATE57805T1 (en) 1990-11-15
EP0167849A3 (en) 1987-09-16
JPS6135041A (en) 1986-02-19
DK309185D0 (en) 1985-07-05
DE3425069A1 (en) 1986-02-06
EP0167849B1 (en) 1990-10-24
DK163627B (en) 1992-03-16
DE3580202D1 (en) 1990-11-29
DK309185A (en) 1986-01-08
EP0167849A2 (en) 1986-01-15
JPH0219667B2 (en) 1990-05-02

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