Efficient communication with passive devices
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Abstract
A system and method that provides data messages to a passive device. A passive device, for example watch, is registered together with the telephone number of a cellular telephone of a subscriber to the data message service. Since the cellular telephone periodically transmits a beacon signal, the wireless network knows its cell location. Accordingly, the system determines the cell location of the cellular telephone and establishes a communication of the subscribed data to the watch via the local cellular provider for the same cell location as that of the subscriber'"'"'s cellular telephone.
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Citations
26 Claims
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1-12. -12. (canceled)
- 13. A passive device comprising a personal article that has a display, a receiver capable of receiving data via a wireless transmission, a transmitter capable of transmitting an identity message only a short distance to an active device, and a controller for processing said data for display on said display and said transmission of said identity message by said transmitter.
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14-19. -19. (canceled)
Specification