ZA782959B - Improvements in or relating to the conversion of linear pcm representation to u-law representation - Google Patents

Improvements in or relating to the conversion of linear pcm representation to u-law representation

Info

Publication number
ZA782959B
ZA782959B ZA00782959A ZA782959A ZA782959B ZA 782959 B ZA782959 B ZA 782959B ZA 00782959 A ZA00782959 A ZA 00782959A ZA 782959 A ZA782959 A ZA 782959A ZA 782959 B ZA782959 B ZA 782959B
Authority
ZA
South Africa
Prior art keywords
representation
relating
conversion
law
linear pcm
Prior art date
Application number
ZA00782959A
Inventor
J Everard
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of ZA782959B publication Critical patent/ZA782959B/en

Links

Classifications

    • 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
    • H03M7/50—Conversion to or from non-linear codes, e.g. companding

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
ZA00782959A 1977-06-02 1978-05-23 Improvements in or relating to the conversion of linear pcm representation to u-law representation ZA782959B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23525/77A GB1597468A (en) 1977-06-02 1977-06-02 Conversion between linear pcm representation and compressed pcm

Publications (1)

Publication Number Publication Date
ZA782959B true ZA782959B (en) 1979-05-30

Family

ID=10197050

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00782959A ZA782959B (en) 1977-06-02 1978-05-23 Improvements in or relating to the conversion of linear pcm representation to u-law representation

Country Status (6)

Country Link
JP (1) JPS542648A (en)
DE (1) DE2824254A1 (en)
FR (1) FR2393479A1 (en)
GB (1) GB1597468A (en)
SE (1) SE7806260L (en)
ZA (1) ZA782959B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1089569A (en) * 1978-04-18 1980-11-11 Ernst A. Munter Binary multiplier circuit including coding circuit
DE2938984A1 (en) * 1979-09-26 1981-04-09 Siemens AG, 1000 Berlin und 8000 München METHOD FOR CONVERTING LINEAR CODED DIGITAL SIGNALS TO NON-LINEAR CODED DIGITAL SIGNALS ACCORDING TO A MULTIPLE-SEGMENT CHARACTERISTIC COMPLIANCE WITH THE A-LAW OR MY-LAW
DE3010895A1 (en) * 1980-03-21 1981-10-01 Grob, Burkhart, Dipl.-Ing. ETH, 8023 Großhesselohe METHOD FOR PRODUCING A WING WITH A FLAP
DE3028734A1 (en) * 1980-07-29 1982-03-04 Siemens AG, 1000 Berlin und 8000 München METHOD FOR CONVERTING POSITIVE LINEAR CODED DIGITAL SIGNALS AND THEIR TWO COMPLEMENT TO NONLINEAR CODED DIGITAL SIGNALS MEASURED IN A MULTIPLE SEGMENT CHARACTERISTIC COMPLIANCE WITH THE A-LAW
DE3028726C2 (en) * 1980-07-29 1986-12-11 Siemens AG, 1000 Berlin und 8000 München Method and circuit arrangement for converting linearly coded digital signals into non-linearly coded digital signals in accordance with a multiple-segment characteristic curve that obeys my law
DE3324031A1 (en) * 1983-07-04 1985-01-17 Siemens AG, 1000 Berlin und 8000 München Quantiser for DPCM encoders
BE897773A (en) * 1983-09-19 1984-03-19 Bell Telephone Mfg Cy PULSE CODE MODULATION CONVERTER
JPS6159915A (en) * 1984-08-31 1986-03-27 Fujitsu Ltd Coded correcting device
FR2612024A1 (en) * 1987-02-25 1988-09-09 Mitel Corp Circuit for compression and expansion of digital signals
JPH02288422A (en) * 1989-04-27 1990-11-28 Matsushita Electric Ind Co Ltd Data compressing method

Also Published As

Publication number Publication date
FR2393479A1 (en) 1978-12-29
GB1597468A (en) 1981-09-09
JPS542648A (en) 1979-01-10
SE7806260L (en) 1978-12-03
DE2824254A1 (en) 1978-12-14

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