GB2277659B - Transmitting digital signals - Google Patents

Transmitting digital signals

Info

Publication number
GB2277659B
GB2277659B GB9307803A GB9307803A GB2277659B GB 2277659 B GB2277659 B GB 2277659B GB 9307803 A GB9307803 A GB 9307803A GB 9307803 A GB9307803 A GB 9307803A GB 2277659 B GB2277659 B GB 2277659B
Authority
GB
United Kingdom
Prior art keywords
digital signals
transmitting digital
transmitting
signals
digital
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 - Lifetime
Application number
GB9307803A
Other versions
GB2277659A (en
GB9307803D0 (en
Inventor
Barry Donald Ruberry Miles
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.)
MILES CONSULTANTS Ltd
Original Assignee
MILES CONSULTANTS 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
Application filed by MILES CONSULTANTS Ltd filed Critical MILES CONSULTANTS Ltd
Priority to GB9307803A priority Critical patent/GB2277659B/en
Publication of GB9307803D0 publication Critical patent/GB9307803D0/en
Publication of GB2277659A publication Critical patent/GB2277659A/en
Application granted granted Critical
Publication of GB2277659B publication Critical patent/GB2277659B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/462—Testing group delay or phase shift, e.g. timing jitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H04L1/244—Testing correct operation by comparing a transmitted test signal with a locally generated replica test sequence generators
    • 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 MPEG 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
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • H04N7/54—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous
    • H04N7/56—Synchronising systems therefor
GB9307803A 1993-04-15 1993-04-15 Transmitting digital signals Expired - Lifetime GB2277659B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9307803A GB2277659B (en) 1993-04-15 1993-04-15 Transmitting digital signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9307803A GB2277659B (en) 1993-04-15 1993-04-15 Transmitting digital signals

Publications (3)

Publication Number Publication Date
GB9307803D0 GB9307803D0 (en) 1993-06-02
GB2277659A GB2277659A (en) 1994-11-02
GB2277659B true GB2277659B (en) 1998-01-21

Family

ID=10733893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9307803A Expired - Lifetime GB2277659B (en) 1993-04-15 1993-04-15 Transmitting digital signals

Country Status (1)

Country Link
GB (1) GB2277659B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129748A (en) * 1975-09-10 1978-12-12 Idr, Inc. Phase locked loop for providing continuous clock phase correction
EP0144979A2 (en) * 1983-12-07 1985-06-19 Siemens Aktiengesellschaft Method of measuring the bit error rate of binary digital signals
GB2199470A (en) * 1986-12-31 1988-07-06 Racal Recorders Ltd Phase jitter detection and reduction, clock extraction
US4821287A (en) * 1987-10-21 1989-04-11 F. L. Jennings Apparatus and method for detecting digital carrier synchronization problems
US4953181A (en) * 1987-10-21 1990-08-28 Lear Siegler Jennings Corp. Apparatus and method for detecting digital carrier synchronization problems
GB2271492A (en) * 1992-03-26 1994-04-13 Motorola Inc Apparatus for and method of synchronizing a clock signal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129748A (en) * 1975-09-10 1978-12-12 Idr, Inc. Phase locked loop for providing continuous clock phase correction
EP0144979A2 (en) * 1983-12-07 1985-06-19 Siemens Aktiengesellschaft Method of measuring the bit error rate of binary digital signals
GB2199470A (en) * 1986-12-31 1988-07-06 Racal Recorders Ltd Phase jitter detection and reduction, clock extraction
US4821287A (en) * 1987-10-21 1989-04-11 F. L. Jennings Apparatus and method for detecting digital carrier synchronization problems
US4953181A (en) * 1987-10-21 1990-08-28 Lear Siegler Jennings Corp. Apparatus and method for detecting digital carrier synchronization problems
GB2271492A (en) * 1992-03-26 1994-04-13 Motorola Inc Apparatus for and method of synchronizing a clock signal

Also Published As

Publication number Publication date
GB2277659A (en) 1994-11-02
GB9307803D0 (en) 1993-06-02

Similar Documents

Publication Publication Date Title
EP0498617A3 (en) Digital signal transmitting method
HU9601499D0 (en) Digital video transmitting system
EP0616471A3 (en) Coding of digital signals.
HUT61860A (en) Signal transmission system
AU8663891A (en) Signal coding
SG46376A1 (en) A multi-channel digital transmitter and receiver
EP0506400A3 (en) Signal transmission system
GB9113515D0 (en) Speech signal transmission
AU2139992A (en) Digital fsk receiver
SG44761A1 (en) Signal transmission system
GB9206495D0 (en) Receiving data signals
GB9514956D0 (en) Transmission of digital signals
EP0558259A3 (en) Video signal transmission
GB2279519B (en) Transmitter/receiver
GB2267417B (en) Digital class receiver
GB2241850B (en) Signal transmission system
EP0652659A3 (en) Digital signal transmission circuit.
GB9300712D0 (en) Receiver
AU119354S (en) Receiver
GB2277659B (en) Transmitting digital signals
EP0977386A4 (en) Digital signal receiver
GB2285898B (en) Video signal transmission
GB2266213B (en) Digital signal coding
GB2250656B (en) Video signal transmission
GB9605177D0 (en) Transmitting digital signals