GB1445959A - Delte modulation decoding apparatus - Google Patents

Delte modulation decoding apparatus

Info

Publication number
GB1445959A
GB1445959A GB550975A GB550975A GB1445959A GB 1445959 A GB1445959 A GB 1445959A GB 550975 A GB550975 A GB 550975A GB 550975 A GB550975 A GB 550975A GB 1445959 A GB1445959 A GB 1445959A
Authority
GB
United Kingdom
Prior art keywords
decoder
bits
output
memory
shift register
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
GB550975A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1445959A publication Critical patent/GB1445959A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • H03M3/022—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB550975A 1974-04-08 1975-02-10 Delte modulation decoding apparatus Expired GB1445959A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US458936A US3916314A (en) 1974-04-08 1974-04-08 Non-linear filter for delta modulator output using shift register and table lookup

Publications (1)

Publication Number Publication Date
GB1445959A true GB1445959A (en) 1976-08-11

Family

ID=23822695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB550975A Expired GB1445959A (en) 1974-04-08 1975-02-10 Delte modulation decoding apparatus

Country Status (7)

Country Link
US (1) US3916314A (https=)
JP (1) JPS5429336B2 (https=)
CA (1) CA1033067A (https=)
DE (1) DE2506627C2 (https=)
FR (1) FR2266984B1 (https=)
GB (1) GB1445959A (https=)
IT (1) IT1031806B (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133238A (en) * 1982-12-10 1984-07-18 Marconi Co Ltd Coder/decoder arrangements
GB2137037A (en) * 1983-03-24 1984-09-26 Labo Cent Telecommunicat Transcoding Process and Device For Parallel Transcoding of a Digital PCM Signal
GB2178577A (en) * 1985-07-27 1987-02-11 Plessey Co Plc A signal converter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971987A (en) * 1975-02-07 1976-07-27 International Business Machines Corporation Gain method and apparatus for a delta modulator
US4097753A (en) * 1976-04-02 1978-06-27 International Business Machines Corporation Comparator circuit for a C-2C A/D and D/A converter
NL7801909A (nl) * 1978-02-21 1979-08-23 Philips Nv Inrichting voor het decoderen van een met adap- tieve deltamodulatie gecodeerd signaal.
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
JPH0330521A (ja) * 1989-06-27 1991-02-08 Sony Corp ディジタル信号デコード装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393364A (en) * 1965-10-23 1968-07-16 Signatron Statistical delta modulation system
JPS4831139B1 (https=) * 1969-03-11 1973-09-27
US3628148A (en) * 1969-12-23 1971-12-14 Bell Telephone Labor Inc Adaptive delta modulation system
JPS4860570A (https=) * 1971-11-19 1973-08-24
US3763433A (en) * 1972-01-13 1973-10-02 Univ Iowa State Res Found Inc System and method for differential pulse code modulation of analog signals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133238A (en) * 1982-12-10 1984-07-18 Marconi Co Ltd Coder/decoder arrangements
GB2137037A (en) * 1983-03-24 1984-09-26 Labo Cent Telecommunicat Transcoding Process and Device For Parallel Transcoding of a Digital PCM Signal
GB2178577A (en) * 1985-07-27 1987-02-11 Plessey Co Plc A signal converter

Also Published As

Publication number Publication date
DE2506627A1 (de) 1975-10-09
CA1033067A (en) 1978-06-13
US3916314A (en) 1975-10-28
IT1031806B (it) 1979-05-10
JPS5429336B2 (https=) 1979-09-22
DE2506627C2 (de) 1983-04-07
FR2266984B1 (https=) 1977-07-15
JPS50137065A (https=) 1975-10-30
FR2266984A1 (https=) 1975-10-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee