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System and method for automatically muting cellular telephone devices in noise sensitive areas

  • US 6,675,002 B1
  • Filed: 08/27/1999
  • Issued: 01/06/2004
  • Est. Priority Date: 08/27/1999
  • Status: Expired due to Fees
First Claim
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1. A system for selectively restricting the ringing of a cellular telephone within a noise sensitive area, comprising:

  • a transmitter for generating a control signal at an entrance to the noise sensitive area, said control signal not being coextensive with the noise sensitive area;

    the cellular telephone including a ringer for audibly signaling the receipt of a call;

    a receiver subsystem within the cellular telephone responsive to said control signal for generating a muting signal upon receipt of said control signal; and

    a muting subsystem within the cellular telephone responsive to said muting signal for inhibiting the operation of said ringer for a predetermined period of time in response to said control signal to inhibit ringing of the telephone within the noise sensitive area.

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