Data modem with remote firmware update
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 7, 1993
Grant Date -
N/A
app pub date -
Oct 15, 1991
filing date -
Oct 15, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data modem is provided with a boot ROM having a set of instructions for a programmable processor to perform its basic functions within the modem. Enhancements and firmware updates are downloaded over a telephone line through the modem's inherent communications abilities and stored in a battery backed RAM. This permits firmware updates and enhancements to be implemented remotely without need for replacement of ROM or opening of the modem housing.
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Family
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