Ultra short range communication with sensing device and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 23, 2004
Grant Date -
N/A
app pub date -
Jun 30, 2000
filing date -
Jun 30, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of communicating of the present invention includes broadcasting a signal from a transmission point. The power of the signal is limited such that the signal will attenuate within a predetermined distance from the transmission point. The signal is received by a receiver. A communication system includes a transmitter and a receiver. The transmitter is adapted to broadcast a first signal which attenuates within a predetermined distance from the transmitter. The receiver is adapted to receive the first signal. The method and system can be used to imperceptibly transmit voice data.
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