[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

FR2339924A1 - Systeme de compression de bande - Google Patents

Systeme de compression de bande

Info

Publication number
FR2339924A1
FR2339924A1 FR7702261A FR7702261A FR2339924A1 FR 2339924 A1 FR2339924 A1 FR 2339924A1 FR 7702261 A FR7702261 A FR 7702261A FR 7702261 A FR7702261 A FR 7702261A FR 2339924 A1 FR2339924 A1 FR 2339924A1
Authority
FR
France
Prior art keywords
compression system
band compression
band
compression
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.)
Withdrawn
Application number
FR7702261A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2339924A1 publication Critical patent/FR2339924A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR7702261A 1976-01-30 1977-01-27 Systeme de compression de bande Withdrawn FR2339924A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7600932A NL7600932A (nl) 1976-01-30 1976-01-30 Bandcompressie systeem.

Publications (1)

Publication Number Publication Date
FR2339924A1 true FR2339924A1 (fr) 1977-08-26

Family

ID=19825535

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702261A Withdrawn FR2339924A1 (fr) 1976-01-30 1977-01-27 Systeme de compression de bande

Country Status (6)

Country Link
US (1) US4086431A (fr)
JP (1) JPS5294004A (fr)
DE (1) DE2701814C3 (fr)
FR (1) FR2339924A1 (fr)
GB (1) GB1563628A (fr)
NL (1) NL7600932A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070949A1 (fr) * 1981-07-28 1983-02-09 International Business Machines Corporation Procédé de transmission voix et données numériques et dispositif de mise en oeuvre dudit procédé

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7908213A (nl) * 1979-11-09 1981-06-01 Philips Nv Spraaksynthese inrichting met tenminste twee vervormingsketens.
US4374304A (en) * 1980-09-26 1983-02-15 Bell Telephone Laboratories, Incorporated Spectrum division/multiplication communication arrangement for speech signals
DE3138523A1 (de) * 1981-09-28 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Verfahren zur abhoersicheren frequenzbandkomprimierten uebertragung von sprachsignalen
DE3270212D1 (en) * 1982-04-30 1986-05-07 Ibm Digital coding method and device for carrying out the method
JP3219093B2 (ja) * 1986-01-03 2001-10-15 モトロ−ラ・インコ−ポレ−テッド 外部のボイシングまたはピッチ情報を使用することなく音声を合成する方法および装置
US4868868A (en) * 1986-09-30 1989-09-19 Oki Electric Industry Co., Ltd. Sub-band speech analyzing and synthesizing device
JPH01118900A (ja) * 1987-11-01 1989-05-11 Ricoh Co Ltd 雑音抑圧装置
US4979188A (en) * 1988-04-29 1990-12-18 Motorola, Inc. Spectrally efficient method for communicating an information signal
US5754127A (en) * 1994-02-05 1998-05-19 Sony Corporation Information encoding method and apparatus, and information decoding method and apparatus
US5524397A (en) * 1995-03-27 1996-06-11 Byers; Gary L. Framing system for wood frame buildings
US20030002576A1 (en) * 2001-06-29 2003-01-02 Whitehead David E. Apparatus and method for compression of data in protection and control communications between protective relays in a power system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122581B (de) * 1960-11-30 1962-01-25 Telefunken Patent Verfahren und Schaltungsanordnung zur angenaeherten Nachbildung der Kurzzeitspektren von nach dem Vocoderverfahren uebertragenen Sprachsignalen
NL272809A (fr) * 1960-12-27
US3471648A (en) * 1966-07-28 1969-10-07 Bell Telephone Labor Inc Vocoder utilizing companding to reduce background noise caused by quantizing errors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070949A1 (fr) * 1981-07-28 1983-02-09 International Business Machines Corporation Procédé de transmission voix et données numériques et dispositif de mise en oeuvre dudit procédé

Also Published As

Publication number Publication date
GB1563628A (en) 1980-03-26
DE2701814C3 (de) 1979-10-18
JPS5294004A (en) 1977-08-08
DE2701814B2 (de) 1979-02-15
US4086431A (en) 1978-04-25
NL7600932A (nl) 1977-08-02
DE2701814A1 (de) 1977-08-04

Similar Documents

Publication Publication Date Title
FR2346025A1 (fr) Systeme respiratoire
FR2392712B1 (fr) Systeme extracteur-melangeur
BE859268A (fr) Systeme de radiocommunications
SE428583B (sv) Dubbelkylsystem
IT1076629B (it) Trasemttitore/ricevitore
FI782400A (fi) Anordning foer framstaellning foer foeraedlade band saerskilt wellpappband
BE861595A (fr) Recepteur de fac-similes
FR2274177A1 (fr) Systeme de radiotelephonie
DK97477A (da) Radarmodtager
AT360090B (de) Digitaler korrelationsempfaenger
SE7713582L (sv) Faksimilmottagare
FR2299773A1 (fr) Systeme
FR2344849A1 (fr) Systeme de radio-interferometrie
FR2352452A1 (fr) Systeme de transmission unilaterale
BE846777A (fr) Systeme de refrigeration ameliore
FR2341468A1 (fr) Systeme de freinage pneumatique
FR2339924A1 (fr) Systeme de compression de bande
BE861695A (fr) Systeme de calculateur
FR2347550A1 (fr) Systeme de pompage
BE862540A (fr) Systeme de radiotelephonie
SE7705981L (sv) Suprheterodynmottagare
SE7700802L (sv) Fergtelevisionsmottagare
BE856800A (fr) Systeme aqueux chimioluminescents
BE851924A (fr) Systeme haut-parleur
FR2333210A1 (fr) Systeme de refrigeration

Legal Events

Date Code Title Description
ST Notification of lapse