JPS55166337A - Adaptive/predictive dpcm method and its device - Google Patents

Adaptive/predictive dpcm method and its device

Info

Publication number
JPS55166337A
JPS55166337A JP7412279A JP7412279A JPS55166337A JP S55166337 A JPS55166337 A JP S55166337A JP 7412279 A JP7412279 A JP 7412279A JP 7412279 A JP7412279 A JP 7412279A JP S55166337 A JPS55166337 A JP S55166337A
Authority
JP
Japan
Prior art keywords
decoder
output
coefficient
correction
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
JP7412279A
Other languages
English (en)
Other versions
JPS635926B2 (ja
Inventor
Taku Arazeki
Kazunori Ozawa
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 JP7412279A priority Critical patent/JPS55166337A/ja
Priority to US06/156,990 priority patent/US4354273A/en
Priority to CA000353752A priority patent/CA1149289A/en
Publication of JPS55166337A publication Critical patent/JPS55166337A/ja
Publication of JPS635926B2 publication Critical patent/JPS635926B2/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)
JP7412279A 1979-06-12 1979-06-12 Adaptive/predictive dpcm method and its device Granted JPS55166337A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7412279A JPS55166337A (en) 1979-06-12 1979-06-12 Adaptive/predictive dpcm method and its device
US06/156,990 US4354273A (en) 1979-06-12 1980-06-09 ADPCM System for speech or like signals
CA000353752A CA1149289A (en) 1979-06-12 1980-06-11 Adpcm system for speech or like signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7412279A JPS55166337A (en) 1979-06-12 1979-06-12 Adaptive/predictive dpcm method and its device

Publications (2)

Publication Number Publication Date
JPS55166337A true JPS55166337A (en) 1980-12-25
JPS635926B2 JPS635926B2 (ja) 1988-02-05

Family

ID=13538078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7412279A Granted JPS55166337A (en) 1979-06-12 1979-06-12 Adaptive/predictive dpcm method and its device

Country Status (1)

Country Link
JP (1) JPS55166337A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232733U (ja) * 1988-08-22 1990-03-01
JPH03155762A (ja) * 1989-11-14 1991-07-03 Iseki Foods Eng Co Ltd 穀類の連続蒸煮処理装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5346210A (en) * 1976-10-08 1978-04-25 Matsushita Electric Ind Co Ltd Sectional dpcm system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5346210A (en) * 1976-10-08 1978-04-25 Matsushita Electric Ind Co Ltd Sectional dpcm system

Also Published As

Publication number Publication date
JPS635926B2 (ja) 1988-02-05

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