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AR007765A1 - Una disposición de transmisión, el transmisor, el codificador y el método para transmitir la senal. - Google Patents

Una disposición de transmisión, el transmisor, el codificador y el método para transmitir la senal.

Info

Publication number
AR007765A1
AR007765A1 ARP970100566A ARP970100566A AR007765A1 AR 007765 A1 AR007765 A1 AR 007765A1 AR P970100566 A ARP970100566 A AR P970100566A AR P970100566 A ARP970100566 A AR P970100566A AR 007765 A1 AR007765 A1 AR 007765A1
Authority
AR
Argentina
Prior art keywords
signal
excitation sequences
synthesis
excitation
encoder
Prior art date
Application number
ARP970100566A
Other languages
English (en)
Original Assignee
Koninkl Philips Electronics 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8223672&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AR007765(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of AR007765A1 publication Critical patent/AR007765A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech 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
    • G10L19/04—Speech 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms

Landscapes

  • 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)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

En un codificador CELP se ha hecho una comparación entre una senal de objetivo y una pluralidad de senal de síntesis. La senal de síntesis esderivada filtrando una pluralidad de secuencias de excitación desde un libro de códigos dimensionalpor un filtro de síntesis teniendo parámetros derivados dela senal de objetivo. Se selecciona la senal de excitación que resulta en un error mínimo entre la senal de objetivo y la senal de síntesis. La búsqueda dela mejor senal de excitaciónrequiere una complejidad de computadora considerable. Para reducir la complejidad se hace una preselección de un númeropequeno de secuencias de excitación seleccionando solo cada Lth entrada de libro de código para preseleccionar unapluralid ad de secuencias de excitación.Se ha hecho con este número pequeno de secuencias de excitación una búsqueda de complejidad completa en que todas las secuencias de excitación que circundanlas preseleccionadas se encuentran involucradas enla selecc ión.
ARP970100566A 1996-02-15 1997-02-13 Una disposición de transmisión, el transmisor, el codificador y el método para transmitir la senal. AR007765A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96200370 1996-02-15

Publications (1)

Publication Number Publication Date
AR007765A1 true AR007765A1 (es) 1999-11-24

Family

ID=8223672

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP970100566A AR007765A1 (es) 1996-02-15 1997-02-13 Una disposición de transmisión, el transmisor, el codificador y el método para transmitir la senal.

Country Status (10)

Country Link
US (1) US5920832A (es)
EP (1) EP0821848B1 (es)
JP (1) JP3970327B2 (es)
KR (1) KR100455970B1 (es)
CN (1) CN1146129C (es)
AR (1) AR007765A1 (es)
BR (1) BR9702072B1 (es)
CA (1) CA2218217C (es)
DE (1) DE69732746C5 (es)
WO (1) WO1997030524A1 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3261691B2 (ja) * 1997-11-28 2002-03-04 沖電気工業株式会社 符号帳予備選択装置
TW439368B (en) * 1998-05-14 2001-06-07 Koninkl Philips Electronics Nv Transmission system using an improved signal encoder and decoder
US7548787B2 (en) 2005-08-03 2009-06-16 Kamilo Feher Medical diagnostic and communication system
US6470055B1 (en) 1998-08-10 2002-10-22 Kamilo Feher Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems
US7079584B2 (en) 1998-08-10 2006-07-18 Kamilo Feher OFDM, CDMA, spread spectrum, TDMA, cross-correlated and filtered modulation
US7593481B2 (en) 1998-08-31 2009-09-22 Kamilo Feher CDMA, W-CDMA, 3rd generation interoperable modem format selectable (MFS) systems with GMSK modulated systems
US6182030B1 (en) * 1998-12-18 2001-01-30 Telefonaktiebolaget Lm Ericsson (Publ) Enhanced coding to improve coded communication signals
US9373251B2 (en) 1999-08-09 2016-06-21 Kamilo Feher Base station devices and automobile wireless communication systems
US9307407B1 (en) 1999-08-09 2016-04-05 Kamilo Feher DNA and fingerprint authentication of mobile devices
US7260369B2 (en) 2005-08-03 2007-08-21 Kamilo Feher Location finder, tracker, communication and remote control system
EP1199812A1 (en) * 2000-10-20 2002-04-24 Telefonaktiebolaget Lm Ericsson Perceptually improved encoding of acoustic signals
US6766289B2 (en) * 2001-06-04 2004-07-20 Qualcomm Incorporated Fast code-vector searching
US6789059B2 (en) * 2001-06-06 2004-09-07 Qualcomm Incorporated Reducing memory requirements of a codebook vector search
JP4304360B2 (ja) * 2002-05-22 2009-07-29 日本電気株式会社 音声符号化復号方式間の符号変換方法および装置とその記憶媒体
US7529664B2 (en) * 2003-03-15 2009-05-05 Mindspeed Technologies, Inc. Signal decomposition of voiced speech for CELP speech coding
JP4781272B2 (ja) 2004-09-17 2011-09-28 パナソニック株式会社 音声符号化装置、音声復号装置、通信装置及び音声符号化方法
US7280810B2 (en) 2005-08-03 2007-10-09 Kamilo Feher Multimode communication system
EP4629237A3 (en) 2014-04-17 2025-12-17 VoiceAge EVS LLC Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1223365A (en) * 1984-02-02 1987-06-23 Shigeru Ono Method and apparatus for speech coding
US4944013A (en) * 1985-04-03 1990-07-24 British Telecommunications Public Limited Company Multi-pulse speech coder
US4907276A (en) * 1988-04-05 1990-03-06 The Dsp Group (Israel) Ltd. Fast search method for vector quantizer communication and pattern recognition systems
US5384891A (en) * 1988-09-28 1995-01-24 Hitachi, Ltd. Vector quantizing apparatus and speech analysis-synthesis system using the apparatus
US5293448A (en) * 1989-10-02 1994-03-08 Nippon Telegraph And Telephone Corporation Speech analysis-synthesis method and apparatus therefor
GB2235354A (en) * 1989-08-16 1991-02-27 Philips Electronic Associated Speech coding/encoding using celp
WO1992005541A1 (en) * 1990-09-14 1992-04-02 Fujitsu Limited Voice coding system
US5451951A (en) * 1990-09-28 1995-09-19 U.S. Philips Corporation Method of, and system for, coding analogue signals
US5195137A (en) * 1991-01-28 1993-03-16 At&T Bell Laboratories Method of and apparatus for generating auxiliary information for expediting sparse codebook search
JP3254687B2 (ja) * 1991-02-26 2002-02-12 日本電気株式会社 音声符号化方式
US5651090A (en) * 1994-05-06 1997-07-22 Nippon Telegraph And Telephone Corporation Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor

Also Published As

Publication number Publication date
DE69732746D1 (de) 2005-04-21
WO1997030524A1 (en) 1997-08-21
DE69732746T2 (de) 2006-04-06
KR100455970B1 (ko) 2004-12-31
EP0821848B1 (en) 2005-03-16
JP3970327B2 (ja) 2007-09-05
CA2218217C (en) 2004-12-07
CN1189264A (zh) 1998-07-29
BR9702072A (pt) 1998-05-26
CN1146129C (zh) 2004-04-14
CA2218217A1 (en) 1997-08-21
JPH11504491A (ja) 1999-04-20
EP0821848A1 (en) 1998-02-04
KR19990007818A (ko) 1999-01-25
BR9702072B1 (pt) 2009-01-13
DE69732746C5 (de) 2020-11-19
US5920832A (en) 1999-07-06

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