FR1262124A - Code pulse transmission device with reversal of every other pulse - Google Patents

Code pulse transmission device with reversal of every other pulse

Info

Publication number
FR1262124A
FR1262124A FR829578A FR829578A FR1262124A FR 1262124 A FR1262124 A FR 1262124A FR 829578 A FR829578 A FR 829578A FR 829578 A FR829578 A FR 829578A FR 1262124 A FR1262124 A FR 1262124A
Authority
FR
France
Prior art keywords
pulse
reversal
transmission device
code
pulse transmission
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
FR829578A
Other languages
French (fr)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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
Priority claimed from US820307A external-priority patent/US3038029A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to FR829578A priority Critical patent/FR1262124A/en
Application granted granted Critical
Publication of FR1262124A publication Critical patent/FR1262124A/en
Expired 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
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • 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
    • H04N7/24—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
FR829578A 1959-06-15 1960-06-09 Code pulse transmission device with reversal of every other pulse Expired FR1262124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR829578A FR1262124A (en) 1959-06-15 1960-06-09 Code pulse transmission device with reversal of every other pulse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US820307A US3038029A (en) 1959-06-15 1959-06-15 Pulse transmission of alternate interchange code
FR829578A FR1262124A (en) 1959-06-15 1960-06-09 Code pulse transmission device with reversal of every other pulse

Publications (1)

Publication Number Publication Date
FR1262124A true FR1262124A (en) 1961-05-26

Family

ID=26186340

Family Applications (1)

Application Number Title Priority Date Filing Date
FR829578A Expired FR1262124A (en) 1959-06-15 1960-06-09 Code pulse transmission device with reversal of every other pulse

Country Status (1)

Country Link
FR (1) FR1262124A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993013611A1 (en) * 1991-12-23 1993-07-08 Compfax Corporation Scanless tv transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993013611A1 (en) * 1991-12-23 1993-07-08 Compfax Corporation Scanless tv transmission system

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