05995540 is referenced by 23 patents and cites 14 patents.

The computational load imposed by a software modem executed on a general purpose processor can be significantly reduced by exploiting periods during an active connection when no data is being received by the software modem. In particular, execution of many receive path signal processing algorithms can be disabled when no data is being received by the software modem. The transmit path continues output modulation as with a normal connection, so as to trick the remote modem (which may or may not be a software modem) into believing the connection is still normal. However, substantial portions of the software modem's receive path can be disabled, thereby reducing computational load on the general purpose processor and freeing additional compute cycles for application and/or operating system program use.

Title
System and method for reducing processing requirements of modem during idle receive time
Application Number
8/780611
Publication Number
5995540
Application Date
January 8, 1997
Publication Date
November 30, 1999
Inventor
Zarko Draganic
Menlo Park
CA, US
Agent
Zagorin O Brien & Graham
Assignee
Altocom
CA, US
IPC
H04B 1/38
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