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Detection apparatus and method

  • US 7,813,414 B2
  • Filed: 06/24/2004
  • Issued: 10/12/2010
  • Est. Priority Date: 06/24/2003
  • Status: Expired due to Fees
First Claim
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1. A transceiver apparatus comprising:

  • first means for detecting over a first detection period and providing a first output indicating a beginning of a message with first detection probability,second means for detecting over a second detection period being greater than the first detection period and providing a second output indicating the detection of the beginning of the message with a second detection probability, and said second detection period is shorter than the time from the beginning of the message to the time where reception of the message must be started in order to successfully receive the message,wherein said second detection probability is higher than said first detection probability, andsaid transceiver apparatus is arranged to receive the message if said second means for detecting indicates detection of the beginning of the message.

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