NO923788D0 - Sending og mottaking i omgivelser med sterke forstyrrelser - Google Patents

Sending og mottaking i omgivelser med sterke forstyrrelser

Info

Publication number
NO923788D0
NO923788D0 NO1992923788A NO923788A NO923788D0 NO 923788 D0 NO923788 D0 NO 923788D0 NO 1992923788 A NO1992923788 A NO 1992923788A NO 923788 A NO923788 A NO 923788A NO 923788 D0 NO923788 D0 NO 923788D0
Authority
NO
Norway
Prior art keywords
interference
receiver
ofdm
pct
carriers
Prior art date
Application number
NO1992923788A
Other languages
English (en)
Other versions
NO923788L (no
NO180789C (no
NO180789B (no
Inventor
Arthur Gordon Mason
Jeffrey John Gledhill
Original Assignee
Nat Transcommunications Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27265019&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO923788(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB909007141A external-priority patent/GB9007141D0/en
Priority claimed from GB909020170A external-priority patent/GB9020170D0/en
Application filed by Nat Transcommunications Ltd filed Critical Nat Transcommunications Ltd
Publication of NO923788D0 publication Critical patent/NO923788D0/no
Publication of NO923788L publication Critical patent/NO923788L/no
Publication of NO180789B publication Critical patent/NO180789B/no
Publication of NO180789C publication Critical patent/NO180789C/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • H04L27/2691—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation involving interference determination or cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/0803—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division using frequency interleaving, e.g. with precision offset

Landscapes

  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
  • Television Systems (AREA)
  • Telephone Function (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Details Of Television Systems (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
NO923788A 1990-03-30 1992-09-29 Sending og mottaking i omgivelser med sterke forstyrrelser NO180789C (no)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB909007141A GB9007141D0 (en) 1990-03-30 1990-03-30 Broadcasting data
GB909020169A GB9020169D0 (en) 1990-03-30 1990-09-14 Broadcasting in a hostile environment
GB909020170A GB9020170D0 (en) 1990-09-14 1990-09-14 Orthogonal frequency division multiplexing
PCT/GB1991/000513 WO1991015925A1 (en) 1990-03-30 1991-04-02 Transmission and reception in a hostile interference environment

Publications (4)

Publication Number Publication Date
NO923788D0 true NO923788D0 (no) 1992-09-29
NO923788L NO923788L (no) 1992-11-27
NO180789B NO180789B (no) 1997-03-10
NO180789C NO180789C (no) 1997-06-18

Family

ID=27265019

Family Applications (1)

Application Number Title Priority Date Filing Date
NO923788A NO180789C (no) 1990-03-30 1992-09-29 Sending og mottaking i omgivelser med sterke forstyrrelser

Country Status (12)

Country Link
US (1) US5488632A (no)
EP (1) EP0521995B1 (no)
JP (1) JPH05505290A (no)
KR (1) KR100186803B1 (no)
AT (1) ATE139660T1 (no)
AU (1) AU651818B2 (no)
CA (1) CA2078445A1 (no)
DE (1) DE69120401T2 (no)
FI (1) FI924373A0 (no)
HK (1) HK1004312A1 (no)
NO (1) NO180789C (no)
WO (1) WO1991015925A1 (no)

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Also Published As

Publication number Publication date
WO1991015925A1 (en) 1991-10-17
EP0521995A1 (en) 1993-01-13
FI924373A7 (fi) 1992-09-29
JPH05505290A (ja) 1993-08-05
NO923788L (no) 1992-11-27
DE69120401D1 (de) 1996-07-25
NO180789C (no) 1997-06-18
FI924373A0 (fi) 1992-09-29
HK1004312A1 (en) 1998-11-20
US5488632A (en) 1996-01-30
KR100186803B1 (ko) 1999-05-01
EP0521995B1 (en) 1996-06-19
ATE139660T1 (de) 1996-07-15
CA2078445A1 (en) 1991-10-17
AU7584591A (en) 1991-10-30
DE69120401T2 (de) 1997-01-02
AU651818B2 (en) 1994-08-04
NO180789B (no) 1997-03-10

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