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Code division multiple access communication system and code division multiple access transmitting apparatus

  • US 6,714,582 B2
  • Filed: 11/27/2002
  • Issued: 03/30/2004
  • Est. Priority Date: 07/11/2000
  • Status: Expired due to Term
First Claim
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1. A spread signal transmitting apparatus in a code division multiple access communication system for spread-spectrum modulating a plurality of transmit signals using different spreading-code sequences, and simultaneously communicating a plurality of spread-spectrum modulated signals, comprising:

  • a cross-correlation detector for calculating a cross-correlation value of spreading-code sequences each of which is assigned to each transmit signal;

    a discriminator for discriminating an interference interval of the spreading-code sequences from the cross-correlation value calculated; and

    a switch for halting transmission of at least one of said plurality of transmit signals with regard to all or part of a spreading-code sequence discriminated to be an interference interval.

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