FR2667745B1 - Procede de synthese de filtres sous bandes a coefficients quantifies et structures de filtres obtenus par ce procede. - Google Patents

Procede de synthese de filtres sous bandes a coefficients quantifies et structures de filtres obtenus par ce procede.

Info

Publication number
FR2667745B1
FR2667745B1 FR9012447A FR9012447A FR2667745B1 FR 2667745 B1 FR2667745 B1 FR 2667745B1 FR 9012447 A FR9012447 A FR 9012447A FR 9012447 A FR9012447 A FR 9012447A FR 2667745 B1 FR2667745 B1 FR 2667745B1
Authority
FR
France
Prior art keywords
filters
structures
synthesizing
quantified coefficients
under bands
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
FR9012447A
Other languages
English (en)
Other versions
FR2667745A1 (fr
Inventor
Stephane Daniel
Michel Pecot
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR9012447A priority Critical patent/FR2667745B1/fr
Publication of FR2667745A1 publication Critical patent/FR2667745A1/fr
Application granted granted Critical
Publication of FR2667745B1 publication Critical patent/FR2667745B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H04N19/635—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by filter definition or implementation details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0283—Filters characterised by the filter structure
    • H03H17/0285—Ladder or lattice filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
FR9012447A 1990-10-09 1990-10-09 Procede de synthese de filtres sous bandes a coefficients quantifies et structures de filtres obtenus par ce procede. Expired - Fee Related FR2667745B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9012447A FR2667745B1 (fr) 1990-10-09 1990-10-09 Procede de synthese de filtres sous bandes a coefficients quantifies et structures de filtres obtenus par ce procede.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9012447A FR2667745B1 (fr) 1990-10-09 1990-10-09 Procede de synthese de filtres sous bandes a coefficients quantifies et structures de filtres obtenus par ce procede.

Publications (2)

Publication Number Publication Date
FR2667745A1 FR2667745A1 (fr) 1992-04-10
FR2667745B1 true FR2667745B1 (fr) 1996-09-20

Family

ID=9401066

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9012447A Expired - Fee Related FR2667745B1 (fr) 1990-10-09 1990-10-09 Procede de synthese de filtres sous bandes a coefficients quantifies et structures de filtres obtenus par ce procede.

Country Status (1)

Country Link
FR (1) FR2667745B1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738966B1 (fr) * 1995-09-14 1997-10-24 France Telecom Banc de filtres en treillis a reconstruction parfaite
US6501860B1 (en) 1998-01-19 2002-12-31 Canon Kabushiki Kaisha Digital signal coding and decoding based on subbands
FR2773927B1 (fr) * 1998-01-19 2001-10-26 Canon Kk Codage et decodage de signal numerique
FR2773926B1 (fr) * 1998-01-19 2001-10-26 Canon Kk Dispositif et procede de codage de signal numerique
EP1032216A1 (fr) 1999-02-24 2000-08-30 Canon Kabushiki Kaisha Dispositif et procédé pour la transformation d'un signal numérique
FR2790172A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique
FR2790168A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique
FR2790171A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique
FR2790173A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique

Also Published As

Publication number Publication date
FR2667745A1 (fr) 1992-04-10

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse

Effective date: 20090630