Wireless communication device using adaptive beamforming

  • US 7,904,117 B2
  • Filed: 08/12/2005
  • Issued: 03/08/2011
  • Est. Priority Date: 08/12/2005
  • Status: Active Grant
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First Claim
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1. An apparatus comprising:

  • a processor;

    a radio frequency (RF) transmitter having a digitally controlled phased array antenna coupled to and controlled by the processor to transmit content using adaptive beamforming over a first wireless communication channel to a receiver of the content; and

    an interface to a second wireless communication channel coupled to the processor to communicate antenna information relating to the use of the phased array antenna to enable the processor to select a direction for the phased array antenna of the RF transmitter based on antenna location information of a phased array antenna of the receiver and performance information corresponding to the antenna location of the phased array antenna of the receiver, and to communicate information to facilitate playing the content, being wirelessly transferred on the first communication channel, at another location, including content protection information transmitted from the processor to the receiver through the second wireless communication channel, wherein the processor receives from the receiver through the interface to the second wireless communication channel an indication of the status of the first communication channel when the phased array antenna is operating in a mode during which the content may be transferred, and wherein the indication of the status comprises an indication from the receiver that prompts the processor to steer the beam of the digitally controlled phased array antenna in another direction in response to interference with transmission of portions of the content; and

    wherein the content protection information comprises one or more of encryption keys sent by the processor and one or more acknowledgments sent from a receiver of one or more encryption keys from the processor.

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