Wireless system for the communication of audio, video and data signals over a narrow bandwidth
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United States of America Patent
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Aug 11, 1998
Grant Date -
N/A
app pub date -
Dec 29, 1995
filing date -
Dec 29, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A wireless communication unit for a wireless communication system transmits and receives video and audio signals over an RF bandwidth. The RF bandwidth is allocated among the audio and video signals to allow the audio and video signals to fit within the RF bandwidth. The allocation is performed by varying the rates of compression of the audio and video signals. The communication unit is applicable to subscriber units and base stations. Subscriber units such as cellular telephones can display the video images by using fast digital-to-analog converters and a dither technique. During a communication link, the subscriber unit receives a transmission header from another party on the communication link. The transmission header may include a request by the other party to change the allocation of the audio and video signals. If such a request is received, the subscriber unit automatically changes the allocation in response to the request.
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