Data communication apparatus having common memory for storing video and audio data
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United States of America Patent
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Dec 28, 2004
Grant Date -
Sep 5, 2002
app pub date -
Apr 3, 2002
filing date -
Jul 2, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data communication apparatus such as a facsimile apparatus having an automatic telephone message recording function, having a common memory for storing video and audio data that have been received or are to be transmitted, enables selection of a method of memory management whereby the memory space is divided at a boundary address into two regions which respectively store video data and audio data and a method whereby the memory space is not so divided, but the video data and audio data are written into addresses which successively increase from respectively opposite ends of the memory space. Remaining amounts of memory capacity which can be used to store video and/or audio data can be displayed as respective numbers of standard document pages and telephone calls, the latter representing standard-duration recording intervals. In addition, a boundary address setting mode can be established in which the respective sizes of the video and audio regions for respectively different boundary address values are displayed as numbers of standard document pages and telephone calls.
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