Invention Grant
US07680650B2 Very low bit rate speech transmission system 失效
非常低的比特率语音传输系统

  • Patent Title: Very low bit rate speech transmission system
  • Patent Title (中): 非常低的比特率语音传输系统
  • Application No.: US11652814
    Application Date: 2007-01-12
  • Publication No.: US07680650B2
    Publication Date: 2010-03-16
  • Inventor: Paul Johnson
  • Applicant: Paul Johnson
  • Applicant Address: US CA San Diego
  • Assignee: Trex Enterprises Corp.
  • Current Assignee: Trex Enterprises Corp.
  • Current Assignee Address: US CA San Diego
  • Agent John R. Ross
  • Main IPC: G10L21/00
  • IPC: G10L21/00
Very low bit rate speech transmission system
Abstract:
A very low bit rate communication system. In preferred embodiments, an off-the-shelf module is adapted to convert a speaker's voice to text. A processor is provided to separate the text into individual words. The processor is programmed with a dictionary which provides pre-assigned specific 14-bit numeric values to each word in the dictionary (words used more frequently may be assigned shorter codes). The processor creates a numeric stream from 14-bit numeric values and this numeric stream is then transmitted to a receiver. Typical speech contains 4 words/second, so bit rates as low as 50 bits/second may be achieved with this technique. At the receiving end, the stream of received 14-bit numeric values, representing the speaker's words, are looked up in a dictionary identical to that at the transmitting end and the text of the words reconstructed. Text-to-speech techniques common to the industry are then used to regenerate the speech.
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