Telephone line monitoring apparatus and method
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United States of America Patent
Stats
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Sep 13, 1994
Grant Date -
N/A
app pub date -
Sep 5, 1991
filing date -
Sep 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fax monitoring apparatus comprises one or more line interface circuits to simultaneously detect and analyze audio signals produced on any given telephone line by two connected fax machines, analyzing circuitry to analyze and interpret the audio signals to form a compressed fax image, expansion circuitry to expand the compressed fax image into a bit-mapped image, memory to store the compressed fax image and/or the bit-mapped image, and display to display the bit-mapped image of the original fax transmission.
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