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Proximity regulation system for use with a portable cell phone and a method of operation thereof

DC
  • US 7,039,435 B2
  • Filed: 09/28/2001
  • Issued: 05/02/2006
  • Est. Priority Date: 09/28/2001
  • Status: Expired due to Term
First Claim
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1. A portable cell phone, comprising:

  • a power circuit that provides a network adjusted transmit power level as a function of a position to a communications tower; and

    a proximity regulation system, including;

    a location sensing subsystem that determines a location of said portable cell phone proximate a user; and

    a power governing subsystem, coupled to said location sensing subsystem, that determines a proximity transmit power level of said portable cell phone based on said location and determines a transmit power level for said portable cell phone based on said network adjusted transmit power level and said proximity transmit power level.

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