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Device with passive receiver

  • US 7,103,344 B2
  • Filed: 11/01/2002
  • Issued: 09/05/2006
  • Est. Priority Date: 06/08/2000
  • Status: Expired due to Term
First Claim
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1. A wireless communications apparatus, comprising:

  • (a) a wake-up receiver adapted to receive a wake-up signal over a secondary network;

    (b) an initially powered-off, sleeping wireless communications transceiver communicating over a primary network and adapted to be powered on by the wake-up receiver when the wake-up receiver receives the wake-up signal;

    (c) wherein the wake-up receiver receives data other than the wake-up signal; and

    (d) wherein the data is an activation signal causing the secondary network to take over the function of the primary network.

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