JPS56129444A - Adaptive type differential pcm system and its device - Google Patents

Adaptive type differential pcm system and its device

Info

Publication number
JPS56129444A
JPS56129444A JP3366980A JP3366980A JPS56129444A JP S56129444 A JPS56129444 A JP S56129444A JP 3366980 A JP3366980 A JP 3366980A JP 3366980 A JP3366980 A JP 3366980A JP S56129444 A JPS56129444 A JP S56129444A
Authority
JP
Japan
Prior art keywords
value
forecast
adaptive type
input
output value
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.)
Granted
Application number
JP3366980A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6251542B2 (enrdf_load_stackoverflow
Inventor
Kazunori Ozawa
Taku Arazeki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP3366980A priority Critical patent/JPS56129444A/ja
Publication of JPS56129444A publication Critical patent/JPS56129444A/ja
Publication of JPS6251542B2 publication Critical patent/JPS6251542B2/ja
Granted 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
    • H03M3/04—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM]
    • H03M3/042—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM] with adaptable step size, e.g. adaptive differential pulse code modulation [ADPCM]

Landscapes

  • 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)
JP3366980A 1980-03-17 1980-03-17 Adaptive type differential pcm system and its device Granted JPS56129444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3366980A JPS56129444A (en) 1980-03-17 1980-03-17 Adaptive type differential pcm system and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3366980A JPS56129444A (en) 1980-03-17 1980-03-17 Adaptive type differential pcm system and its device

Publications (2)

Publication Number Publication Date
JPS56129444A true JPS56129444A (en) 1981-10-09
JPS6251542B2 JPS6251542B2 (enrdf_load_stackoverflow) 1987-10-30

Family

ID=12392860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3366980A Granted JPS56129444A (en) 1980-03-17 1980-03-17 Adaptive type differential pcm system and its device

Country Status (1)

Country Link
JP (1) JPS56129444A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972244A (ja) * 1982-10-18 1984-04-24 Nippon Telegr & Teleph Corp <Ntt> 適応予測符号化方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972244A (ja) * 1982-10-18 1984-04-24 Nippon Telegr & Teleph Corp <Ntt> 適応予測符号化方式

Also Published As

Publication number Publication date
JPS6251542B2 (enrdf_load_stackoverflow) 1987-10-30

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