DE3685520D1 - Kodier- und uebertragungseinrichtung zur ausfuehrung einer kodierung mit adaptiver quantisierung. - Google Patents

Kodier- und uebertragungseinrichtung zur ausfuehrung einer kodierung mit adaptiver quantisierung.

Info

Publication number
DE3685520D1
DE3685520D1 DE8686108782T DE3685520T DE3685520D1 DE 3685520 D1 DE3685520 D1 DE 3685520D1 DE 8686108782 T DE8686108782 T DE 8686108782T DE 3685520 T DE3685520 T DE 3685520T DE 3685520 D1 DE3685520 D1 DE 3685520D1
Authority
DE
Germany
Prior art keywords
coding
carrying
transmission device
adaptive quantization
quantization
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 - Fee Related
Application number
DE8686108782T
Other languages
English (en)
Other versions
DE3685520T2 (de
Inventor
Tomohiko Taniguchi
Kohei Iseda
Yoshihiro Tomita
Shigeyuki Unagami
Shoji Tominaga
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Priority claimed from JP14230785A external-priority patent/JPS623535A/ja
Priority claimed from JP1578486A external-priority patent/JPS62175021A/ja
Priority claimed from JP6097286A external-priority patent/JPS62222726A/ja
Priority claimed from JP8006386A external-priority patent/JPS62237813A/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE3685520D1 publication Critical patent/DE3685520D1/de
Publication of DE3685520T2 publication Critical patent/DE3685520T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/066—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM]
    • H04B14/068—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM] with adaptive feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE19863685520 1985-06-28 1986-06-27 Kodier- und uebertragungseinrichtung zur ausfuehrung einer kodierung mit adaptiver quantisierung. Expired - Fee Related DE3685520T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP14230785A JPS623535A (ja) 1985-06-28 1985-06-28 符号化伝送装置
JP1578486A JPS62175021A (ja) 1986-01-29 1986-01-29 符号化伝送装置
JP6097286A JPS62222726A (ja) 1986-03-20 1986-03-20 符号化伝送装置
JP8006386A JPS62237813A (ja) 1986-04-09 1986-04-09 高能率符号化伝送装置

Publications (2)

Publication Number Publication Date
DE3685520D1 true DE3685520D1 (de) 1992-07-09
DE3685520T2 DE3685520T2 (de) 1993-01-07

Family

ID=27456444

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863685520 Expired - Fee Related DE3685520T2 (de) 1985-06-28 1986-06-27 Kodier- und uebertragungseinrichtung zur ausfuehrung einer kodierung mit adaptiver quantisierung.

Country Status (3)

Country Link
EP (1) EP0206352B1 (de)
CA (1) CA1292071C (de)
DE (1) DE3685520T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890282A (en) * 1988-03-08 1989-12-26 Network Equipment Technologies, Inc. Mixed mode compression for data transmission
JPH0783315B2 (ja) * 1988-09-26 1995-09-06 富士通株式会社 可変レート音声信号符号化方式
ZA921988B (en) * 1991-03-29 1993-02-24 Sony Corp High efficiency digital data encoding and decoding apparatus
GB2263038B (en) * 1991-12-30 1996-01-31 Apple Computer Apparatus for manipulating streams of data
AUPM503794A0 (en) * 1994-04-13 1994-06-09 Australian National University, The Adpcm signal encoding/decoding system and method
IT1281001B1 (it) * 1995-10-27 1998-02-11 Cselt Centro Studi Lab Telecom Procedimento e apparecchiatura per codificare, manipolare e decodificare segnali audio.
EP2198426A4 (de) * 2007-10-15 2012-01-18 Lg Electronics Inc Verfahren und vorrichtung zur verarbeitung eines signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443769A2 (fr) * 1978-12-08 1980-07-04 Telediffusion Fse Compression et expansion (quantification) de signaux numeriques de television a codage differentiel
JPS59178030A (ja) * 1983-03-28 1984-10-09 Fujitsu Ltd 適応型差分符号化方式
JPS59223032A (ja) * 1983-06-01 1984-12-14 Sony Corp ディジタル信号伝送装置

Also Published As

Publication number Publication date
EP0206352A3 (en) 1988-11-23
CA1292071C (en) 1991-11-12
EP0206352A2 (de) 1986-12-30
DE3685520T2 (de) 1993-01-07
EP0206352B1 (de) 1992-06-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee