ATE50386T1 - Kodierer fuer woerter variabler laenge. - Google Patents

Kodierer fuer woerter variabler laenge.

Info

Publication number
ATE50386T1
ATE50386T1 AT85308006T AT85308006T ATE50386T1 AT E50386 T1 ATE50386 T1 AT E50386T1 AT 85308006 T AT85308006 T AT 85308006T AT 85308006 T AT85308006 T AT 85308006T AT E50386 T1 ATE50386 T1 AT E50386T1
Authority
AT
Austria
Prior art keywords
prom
magnitude
word
multiplexer
output
Prior art date
Application number
AT85308006T
Other languages
English (en)
Inventor
Osama Abu El-Kheir Huss Bahgat
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
Application granted granted Critical
Publication of ATE50386T1 publication Critical patent/ATE50386T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/14—Code representation, e.g. transition, for a given bit cell depending on the information in one or more adjacent bit cells, e.g. delay modulation code, double density code
    • H03M5/145—Conversion to or from block codes or representations thereof
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
    • 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)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Vehicle Body Suspensions (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
AT85308006T 1983-11-08 1985-11-04 Kodierer fuer woerter variabler laenge. ATE50386T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000440742A CA1207911A (en) 1983-11-08 1983-11-08 Variable word length encoder
EP85308006A EP0222943B1 (de) 1983-11-08 1985-11-04 Kodierer für Wörter variabler Länge

Publications (1)

Publication Number Publication Date
ATE50386T1 true ATE50386T1 (de) 1990-02-15

Family

ID=39615624

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85308006T ATE50386T1 (de) 1983-11-08 1985-11-04 Kodierer fuer woerter variabler laenge.

Country Status (4)

Country Link
EP (1) EP0222943B1 (de)
AT (1) ATE50386T1 (de)
CA (1) CA1207911A (de)
DE (1) DE3576027D1 (de)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396906A (en) * 1980-10-31 1983-08-02 Sri International Method and apparatus for digital Huffman encoding

Also Published As

Publication number Publication date
DE3576027D1 (de) 1990-03-15
EP0222943A1 (de) 1987-05-27
EP0222943B1 (de) 1990-02-07
CA1207911A (en) 1986-07-15

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee