Low power subscriber unit transmitting voice messages in a two-way communication system
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United States of America Patent
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-
Aug 4, 1998
Issued Date -
N/A
app pub date -
Sep 29, 1994
filing date -
Oct 26, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An interactive data appliance (IDA) having a receiver and transmitter for sending voice packet messages in a two-way interactive broadcast data service communication system. The IDA contains a receiver into which a user recites a spoken message. The voice message is then transmitted by the IDA to a local remote receiver and then to a central transmitting station. In one embodiment of the invention, the IDA digitizes the voice message recited by the user. Additionally, in one embodiment, the IDA operates on a carrier frequency band in the order of approximately 218 MHz, is a battery operated portable unit, and has a maximum power output in the milliwatt range.
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