Appeal No. 96-3238
Application No. 08/137,590
telephone lines) during a given transmission time interval.
During the transmission time interval, each terminal repeatedly
tries to establish a connection with the remote management
apparatus, which can connect with only one terminal at a time.
In other words, the retry time period of a terminal is shorter
than the transmission time interval. The remote management
apparatus includes a timer which measures the length of each
period during which the apparatus is not connected to any
terminal during the transmission time interval. When a measured
period of inactivity exceeds the retry period, the remote
management apparatus concludes that no terminal is attempting to
establish contact and identifies any terminal that was not heard
from as a failed terminal (as opposed to a terminal that was
attempting to establish communication when the transmission time
interval ended).
Apparatus claim 1 reads as follows:
1. A terminal device management system including
a plurality of terminal devices and a remote management
apparatus for remotely managing said plurality of
terminal devices, said remote management apparatus
being connected to said plurality of terminal devices
via a line, each of said plurality of terminal devices
comprising:
data storing means for storing data to be
transmitted;
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Last modified: November 3, 2007