FI116180B - Förfarande och anordning för gruppkodning av signaler - Google Patents

Förfarande och anordning för gruppkodning av signaler Download PDF

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Publication number
FI116180B
FI116180B FI954622A FI954622A FI116180B FI 116180 B FI116180 B FI 116180B FI 954622 A FI954622 A FI 954622A FI 954622 A FI954622 A FI 954622A FI 116180 B FI116180 B FI 116180B
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FI
Finland
Prior art keywords
encoders
encoder
rate
speech
coding
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Application number
FI954622A
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English (en)
Finnish (fi)
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FI954622A0 (sv
FI954622A (sv
Inventor
Kenneth Stewart
Michael Kotzin
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Motorola Inc
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Publication of FI954622A0 publication Critical patent/FI954622A0/sv
Publication of FI954622A publication Critical patent/FI954622A/sv
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Publication of FI116180B publication Critical patent/FI116180B/sv

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Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00Speech recognition
    • G10L15/02Feature extraction for speech recognition; Selection of recognition unit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16Vocoder architecture
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16Vocoder architecture
    • G10L19/18Vocoders using multiple modes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0014Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Claims (9)

1. Förfarande för utförande av signalkodning i ett trädlöst kommunikationssystem, kanne tacknat av att för-farandet omfattar följande steg: 5. kvalitetsinformation mottas frän ätminstone tvä kodare, - en kodares kodningskrav bestäms pä basis av de ätminstone tvä kodarnas kvalitetsinformation, och - kodarens kodningshastighet regleras pä basis av de be-stämda kodningskraven. 10
2. Förfarande i enlighet med patentkrav 1, kännetecknat av att det förutbestämda kriteriet vidare innehäller antingen totalutgängseffekten för den sektor/cell tili vilken kodarna är tilldelade, en angränsande sektors/granncells totalutgängseffekt, en betjänande basstations ifrägavar-15 ande sändningseffektnivä, de nämnda ätminstone tvä . . kodarnas ifrägavarande datahastighet, det minnesutrymme ,·. ; som är tillgängligt i minnesorganen, den processeffekt som . är tillgänglig i processorganen eller den i ett förut- bestämt frekvensomräde tillgängliga bandbredden. « • · · · • 1 1 • · · ''J/ 20
3. Anordning för utförande av signalkodning, kannetecknad av att anordningen omfattar: * « 1 » · · - organ för mottagning av kvalitetsinformation frän ätminstone tvä kodare, » » t • · 1 T - organ, vilka är kopplade tili nämnda mottagningsorgan, * 1·· 25 för att bestämma en kodares kodningskrav pä basis av den 116180 21 kvalitetsinformation som erhälls frän de nämnda ätminstone tvä kodarna, och - organ, vilka är kopplade tili nämnda bestämningsorgan, för att reglera kodarens kodningshastighet pä basis av de 5 nämnda bestämda kodningskraven.
4. Anordning i enlighet med patentkrav 3, kannetecknad av att de nämnda ätminstone tvä kodarna vidare omfattar analys/syntes-kodare (analysis-by-synthesis encoders).
5. Anordning i enlighet med patentkrav 3, kannetecknad av 10 att kvalitetsinformationen vidare omfattar observations- vägda felmätetal (perceptual weighting error metrics) genererade av de nämnda analys/syntes-kodarna, ett signal-brusförhällande (S/N, signal-to-noise ratio), en segment-specifik S/N, en cepstrumdistans (cepstral distance), ett 15 lineärt förutsägande kodnings-(LPC)-distansmätvärde (linear predictive coding (LPC) distance measurement), och • · ett Bark-spektrumdistansmätvärde (BARK spectral distance t t < * / measurement) .
"*· 6. Anordning i enlighet med patentkrav 3, kanne tecknad av t · « ·;;/ 20 att organen för bestämning av den nämnda ätminstone ena I I · kodarens kodningskrav pä basis av den kvalitetsinformation , , som erhälls frän de nämnda ätminstone tvä kodarna, vidare * · · * » » omfattar organ för bestämning av ätminstone en kodares kodningskrav pä basis av de ätminstone tvä kodarnas nämnda • t > :··’ : 25 kvalitetsinformation och tröskelkriterium.
: 7. Anordning i enlighet med patentkrav 6, kanne tecknad av 116180 22 att tröskelkriteriet vidare innehäller antingen total-utgängseffekten för den sektor/cell till vilken kodarna är tilldelade, en angränsande sektors/granncells total-utgängseffekt, en betjänande basstations ifrägavarande 5 sändningseffektnivä, de nämnda ätminstone tvä kodarnas ifrägavarande datahastighet, det minnesutrymme som är tillgängligt i minnesorganen, den processeffekt som är tillgänglig i processorganen eller den i ett förutbestämt frekvensomräde tillgängliga bandbredden.
8. Anordning i enlighet med patentkrav 3, kannetecknad av att de nämnda ätminstone tvä kodarna vidare omfattar ätminstone tvä kodare med variabel hastighet.
9. Anordning i enlighet med patentkrav 3, kännetecknad av att signalerna vidare omfattar antingen talsignaler, 15 videosignaler eller datasignaler. « · • · • · • « I • * » • · · ' i i · » « * • » * * * t 1 t t • » I · > » I » »
FI954622A 1994-02-17 1995-09-29 Förfarande och anordning för gruppkodning av signaler FI116180B (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US19875094A 1994-02-17 1994-02-17
US19875094 1994-02-17
US9414775 1994-12-22
PCT/US1994/014775 WO1995022818A1 (en) 1994-02-17 1994-12-22 Method and apparatus for group encoding signals

Publications (3)

Publication Number Publication Date
FI954622A0 FI954622A0 (sv) 1995-09-29
FI954622A FI954622A (sv) 1995-09-29
FI116180B true FI116180B (sv) 2005-09-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
FI954622A FI116180B (sv) 1994-02-17 1995-09-29 Förfarande och anordning för gruppkodning av signaler

Country Status (11)

Country Link
US (1) US5761634A (sv)
EP (1) EP0699334B1 (sv)
JP (1) JP3779320B2 (sv)
KR (1) KR100193196B1 (sv)
CN (1) CN1129263C (sv)
CA (1) CA2157024C (sv)
DE (1) DE69429917T2 (sv)
FI (1) FI116180B (sv)
IL (1) IL112165A0 (sv)
RU (1) RU2129737C1 (sv)
WO (1) WO1995022818A1 (sv)

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Also Published As

Publication number Publication date
WO1995022818A1 (en) 1995-08-24
FI954622A0 (sv) 1995-09-29
JP3779320B2 (ja) 2006-05-24
EP0699334A4 (en) 1998-09-30
IL112165A0 (en) 1995-03-15
KR960702146A (ko) 1996-03-28
CA2157024A1 (en) 1995-08-24
RU2129737C1 (ru) 1999-04-27
JPH08509348A (ja) 1996-10-01
DE69429917D1 (de) 2002-03-28
KR100193196B1 (ko) 1999-06-15
FI954622A (sv) 1995-09-29
CA2157024C (en) 1999-08-10
EP0699334A1 (en) 1996-03-06
CN1121375A (zh) 1996-04-24
EP0699334B1 (en) 2002-02-20
CN1129263C (zh) 2003-11-26
US5761634A (en) 1998-06-02
DE69429917T2 (de) 2002-07-18

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