| 摘要 |
<p>POWER-SCAVENGING RECEIVERS (160) TO GENERATE SIGNALS THAT CONTROL THE OPERATIONAL STATE OF A WIRELESS TRANSCEIVER (170) ARE DISCLOSED. THE WIRELESS TRANSCEIVER CIRCUITRY PROVIDES WIRELESS COMMUNICATION FOR A HOST ELECTRONIC DEVICE (150). THE POWER- SCAVENGING RECEIVER (160) IS COUPLED WITH THE WIRELESS TRANSCEIVER CIRCUITRY TO INVOKE A SIGNAL TO CAUSE THE WIRELESS TRANSCEIVER CIRCUITRY TO CHANGE OPERATIONAL STATE IN RESPONSE TO A SIGNAL RECEIVED BY THE POWER-SCAVENGING RECEIVER (160). THE POWER-SCAVENGING RECEIVER (160) CAUSES THE WIRELESS TRANSCEIVER (170) TO TRANSITION TO A LOW-POWER STATE WHEN EXITING AN ENVIRONMENT IN WHICH SELECTED WIRELESS COMMUNICATIONS ARE ENABLED AS DETECTED BY THE POWER-SCAVENGING RECEIVER (160) AND CAUSES THE WIRELESS TRANSCEIVER (170) TO TRANSITION OUT OF A LOW-POWER STATE WHEN ENTERING THE ENVIRONMENT AS DETECTED BY THE POWER-SCAVENGING RECEIVER. (FIGURE 2)</p> |
