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Data multiplexing and separation method

  • US 5,228,033 A
  • Filed: 09/30/1991
  • Issued: 07/13/1993
  • Est. Priority Date: 10/05/1990
  • Status: Expired due to Fees
First Claim
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1. A data multiplexing method including:

  • a timing data taking step that takes a plural number of timing data from a timing data storage means that stores said plural number of timing data, said plural number of timing data being thus used to determine bit positions of the bits for a plurality of transmission signal data respectively, said bit positions being positions in frame data signals at which the bits for said plurality of transmission signal data are arranged, said frame data signals being cyclic signals and having a predetermined number of bits for each cycle thereof, anda data arrangement step that uses said timing data as the basis for arranging said plural number of transmission data on said frame data signals by successively arranging the bits for said plural number of transmission data on said frame data signals;

    wherein, with regard to transmission signal data, other than voice data, of said plural number of transmission signal data, said data arrangement step is a step that uses said plural number of timing data as the basis for producing data clock pulses from reference clock pulses by masking appropriate reference clock pulses of said reference clock pulses, said reference clock pulses occurring in sync with said frame data signals, and said data arrangement step then successively arranging the bits for said plural number of transmission signal data on said frame data signals at the bit positions of the bits for said plural number of transmission signal data, said bit positions corresponding to said data clock pulses; and

    with regard to said voice data of said plural number of transmission data, said data arrangement step uses the timing data, for said voice data, of said plural number of timing data so as to appropriately mask first bit positions in the frame data signals, bits for said voice data being thus arranged on second bit positions on the frame data signals other than said first bit positions.

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