Apparatus for making, transmitting and receiving broadcasting type quasi video frequency requested program

Apparatus for making, transmitting and receiving broadcasting type quasi video frequency requested program

CN
  • CN 1,208,968 C
  • Filed: 11/21/2002
  • Issued: 06/29/2005
  • Est. Priority Date: 11/21/2002
  • Status: Active Grant
First Claim
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1. , a kind of device of making and sending and receive the broadcast type quasi video frequency request program mainly contains:

  • Video-audio program is put recording apparatus, plays video/audio signal stream;

    The programme acquisition work station, gather video-audio program put programme signal stream that recording apparatus provides and with programme signal stream by MPEG2, MPEG1, MPEG4 or H.263 standard carry out compressed encoding, form broadcast type compression program code stream;

    This programme acquisition work station also comprises looks audio compressor, the video-voice frequency flow that unpressed one tunnel vision signal and several audio signal are compressed and encoded and be fit to broadcasting to generate, this video-voice frequency flow is stored as material file, and file is carried out the time-code mark;

    The program making work station will be cut apart from the program stream of programme acquisition work station, multiplexing and insert NVOD program descriptor and dedicated segments synchronously, be packaged into again can be on corresponding network data packets for transmission;

    This program making work station comprises that also code stream splits module, and this module is divided into plurality of sections according to time-code with video/audio code stream, and this is cut apart by following formula and is undertaken;

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