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Wireless control system for periodic noise sources

  • US 6,349,198 B1
  • Filed: 01/25/2000
  • Issued: 02/19/2002
  • Est. Priority Date: 01/25/2000
  • Status: Expired due to Fees
First Claim
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1. A wireless control apparatus for use in a system having a plurality of periodic noise sources, comprising:

  • a) an antenna;

    b) an RF receiver connected to the antenna for receiving RF noise from an external periodic noise source;

    c) a phase synchronization circuit connected to the RF receiver for generating a clock signal that is in phase with the external periodic noise; and

    d) a noise source control circuit connected to the phase synchronization circuit for receiving the clock signal and controlling an internal periodic noise source, whereby the periodic noise sources in the system are synchronized to emit their periodic noise in phase with each other.

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