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Battery saving synchronization method in a communcation apparatus

  • US 5,881,055 A
  • Filed: 11/14/1996
  • Issued: 03/09/1999
  • Est. Priority Date: 11/14/1995
  • Status: Expired due to Term
First Claim
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1. A communication apparatus which is provided with transmission and reception processing means for transmitting and receiving data by wireless communication, and time counting means for measuring a lapse of time, the apparatus comprising:

  • control means for repeating an intermittent receipt control wherein the transmission and reception processing means is in operation at intervals of a predetermined period, transmits a beacon indicating that the transmission and reception processing means is set in a state of being capable of receiving the data, and is continued to operate in response to an output from the time counting means after the transmission of the beacon so that the transmission and reception processing means is capable of receiving the data during a guarantee period, and the operation of the transmission and reception processing means is suspended when the guarantee period is expired;

    wherein the predetermined period is defined so that the average electric power consumed by the intermittent receipt control will be smaller than the electric power consumed in the case where the transmission and reception processing means does not transmit beacon and do keep alive all the time.

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