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Voice coding communication system and apparatus therefor 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-001/10
출원번호 US-0349485 (1994-12-02)
발명자 / 주소
  • Sasaki Seishi (Sendai JPX)
출원인 / 주소
  • Kokusai Electric Co. Ltd. (Tokyo JPX 03)
인용정보 피인용 횟수 : 33  인용 특허 : 0

초록

A low-delay code excited linear prediction (LD-CELP) voice coding systemapplied to a scheme, in which the transmitting side interrupts transmission during the voice-nonactive period and the receiving side generates and outputs a comfort noise during the voice-nonactive period. At the transmitting si

대표청구항

A voice coding communication system which, with a view to reducing the transmitting power of a voice coding apparatus, interrupts transmission during a voice-nonactive period and uses as the reproduced output in the voice-nonactive period a comfort noise generated at the receiving side, characterize

이 특허를 인용한 특허 (33)

  1. Aoyagi Hiromi,JPX ; Yang Xuedong,JPX ; Yokoyama Atsushi,JPX, Coding device and decoding device of speech signal, coding method and decoding method.
  2. Thyssen,Jes; Chen,Juin Hwey, Efficient excitation quantization in a noise feedback coding system using correlation techniques.
  3. Thyssen,Jes; Chen,Juin Hwey, Efficient excitation quantization in noise feedback coding with general noise shaping.
  4. Stephens,James Allen; Barron,David L.; You,Sean S., Low-complexity comfort noise generator.
  5. Deisher,Michael E; Morris,Robert W, Low-power noise characterization over a distributed speech recognition channel.
  6. Lagerqvist Tomas,SEX ; Wahlstrom Peter,SEX, Method and apparatus for controlling the use of discontinuous transmission in a cellular telephone.
  7. Makinen, Jari; Vainio, Janne; Mikkola, Hannu, Method and apparatus for encoding speech.
  8. Yip, Philip Chu Wah, Method and apparatus for generating comfort noise.
  9. Benyassine Adil ; Shlomot Eyal, Method and apparatus for generating frame voicing decisions of an incoming speech signal.
  10. Chen,Juin Hwey, Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals.
  11. Chen,Juin Hwey, Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals.
  12. Sumner Terence Edward, Method and apparatus for reducing transmission time required to communicate a silent portion of a voice message.
  13. Hofmann Rudi,DEX, Method and apparatus in coding digital information.
  14. Johansson Ingemar,SEX, Method and arrangement for producing comfort noise in a linear predictive speech decoder.
  15. Nayak,Vasudev S., Method and system for implementing a low complexity spectrum estimation technique for comfort noise generation.
  16. Rao Ajit V. ; LeBlanc Wilfrid P., Method and system for improved discontinuous speech transmission.
  17. Rao Ajit V. ; LeBlanc Wilfrid P., Method and system for improved discontinuous speech transmission.
  18. Rao Ajit V. ; Leblanc Wilfrid P., Method and system for improved discontinuous speech transmission.
  19. Saikaly Madeleine,CAX ; Rabipour Rafi,CAX, Methods and apparatus for generating noise signals from speech signals.
  20. Massingill Larry William ; Reinhold Stan L. ; Weiss Richard E. ; Solve Torbjorn Wilson, Methods and systems for reduced power operation of cellular mobile terminals.
  21. Elofsson Richard K.,SEX ; Svensson Hans Fredrik,SEX, Muting a microphone in radiocommunication systems.
  22. Chen,Juin Hwey, Noise feedback coding method and system for efficiently searching vector quantization codevectors used for coding a speech signal.
  23. Thyssen, Jes, Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure.
  24. Massaloux Dominique,FRX, Process and device for creating comfort noise in a digital speech transmission system.
  25. Galyas, Peter; Westberg, Lars, Reduced delay priority for comfort noise.
  26. Sano Hideo,JPX, Speech encoding communication system.
  27. Hassan Amer ; Wan Yongbing ; Karabinis Peter D., Systems and methods for communicating desired audio information over a communications medium.
  28. Gass, Raymond; Le Creff, Michel, Telephone terminal with control of voice reproduction quality in the receiver.
  29. Harada Ryoichi,JPX, Transmitting and receiving system compatible with data of both the silence compression and non-silence compression type.
  30. Benyassine Adil (Costa Mesa CA) Su Huan-Yu (San Clemente CA), Usage of voice activity detection for efficient coding of speech.
  31. Yajima Hisashi,JPX ; Kawano Noriaki,JPX ; Naito Yushi,JPX ; Suzuki Shigeaki,JPX, Voice coding-and-transmission system with silent period elimination.
  32. Wake Yasuhiro,JPX, Voice coding/decoding system including short and long term predictive filters for outputting a predetermined signal as.
  33. Hayata Toshihiro,JPX ; Unno Yoshihiro,JPX, Voice encoder with a function of updating a background noise.
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