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Out-of-range detector

  • US 20040000993A1
  • Filed: 06/27/2002
  • Published: 01/01/2004
  • Est. Priority Date: 06/27/2002
  • Status: Active Grant
First Claim
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1. A monitoring system comprising:

  • a monitoring device; and

    a monitored device, wherein the monitoring device is configured to receive a locator signal from the monitored device and is configured to produce a direction indication indicating the direction of a last received locator signal if the locator signal is not received.

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