| 摘要 |
<p>A transceiver (101) preferably embedded within a wearable security watch (100 or 200), PDA, or other device which achieves a variety of wireless ultrasonic and/or radio-frequency based functions, including identification and proximity and sensation monitoring assets, individuals, pets, and the like. The portable or wearable device (100 or 200) realizes these functions by periodically polling and receiving information tags within the transmitting distance of the device (100 or 200). The invention can help reduce the likelihood of theft, loss, or misplacement by detecting that a tag (120, 210 or 220) associated with or attached to an entity has left an individual's proximity and sounding an alarm (106). The device (100 or 200) can also assist individuals with sensory impairments, including persons who are deaf, diabetic, and the like, by detecting a tagged entity as it enters the space around an individual, or by detecting environmental stimuli, such as excessive heat in an individual's proximity or vital sign changes, and sounding an alarm (106).</p> |
