Appeal No. 1999-0353
Application No. 08/368,291
without loss or error or, if a loss or error should occur, the original modem software is not
overwritten by the incomplete or faulty code.
Representative independent claim 6 is reproduced as follows:
6. A modem which communicates with a remote computer over a telephone
line, the modem operating under control of operating code to whic h periodic
updates are made, comprising:
storage means in the modem for storing the existing operating code, for
storing a boot program and for receiving and storing updated operating code;
data pump means in the modem for receiving the updated operating code
from the remote computer over the telephone line; and
control means connected to the storage means and the data pump means
for programming the updated operating code into the storage means, said
control means including:
receive means for receiving the updated operating code from the remote
computer;
protocol means for transferring the updated operating code from the
remote computer to the modem over the telephone line according to a
predetermined communications protocol and using a packet format;
check means for verifying that the updated operating code was accurately
transferred;
programming means for overwriting the existing operating code if the
updated operating code was accurately received; and
conversion means for converting the packet of the updated operating code
from a first format to a second, binary format.
The examiner relies on the following references:
Izumi et al. (Izumi) 4,725,977 Feb. 16, 1988
Tjahjadi et al. (Tjahjadi) 5,001,729 Mar. 19, 1991
Herh et al. (Herh) 5,268,928 Dec. 07, 1993
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