CA1200331A - Codeur-decodeur analogique-numerique mic a insertion des bits de signalisation - Google Patents

Codeur-decodeur analogique-numerique mic a insertion des bits de signalisation

Info

Publication number
CA1200331A
CA1200331A CA000442025A CA442025A CA1200331A CA 1200331 A CA1200331 A CA 1200331A CA 000442025 A CA000442025 A CA 000442025A CA 442025 A CA442025 A CA 442025A CA 1200331 A CA1200331 A CA 1200331A
Authority
CA
Canada
Prior art keywords
signal
adpcm
signalling
bit
frames
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
CA000442025A
Other languages
English (en)
Inventor
Andreas H. Weirich
Leo Strawczynski
Ernst A. Munter
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA000442025A priority Critical patent/CA1200331A/fr
Application granted granted Critical
Publication of CA1200331A publication Critical patent/CA1200331A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/066—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM]
    • H04B14/068—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM] with adaptive feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
    • H04J3/1688—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers the demands of the users being taken into account after redundancy removal, e.g. by predictive coding, by variable sampling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA000442025A 1983-11-25 1983-11-25 Codeur-decodeur analogique-numerique mic a insertion des bits de signalisation Expired CA1200331A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000442025A CA1200331A (fr) 1983-11-25 1983-11-25 Codeur-decodeur analogique-numerique mic a insertion des bits de signalisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000442025A CA1200331A (fr) 1983-11-25 1983-11-25 Codeur-decodeur analogique-numerique mic a insertion des bits de signalisation

Publications (1)

Publication Number Publication Date
CA1200331A true CA1200331A (fr) 1986-02-04

Family

ID=4126610

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000442025A Expired CA1200331A (fr) 1983-11-25 1983-11-25 Codeur-decodeur analogique-numerique mic a insertion des bits de signalisation

Country Status (1)

Country Link
CA (1) CA1200331A (fr)

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Legal Events

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