Host to modem interface
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 10, 2004
Grant Date -
N/A
app pub date -
Feb 14, 2000
filing date -
Feb 14, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for and a method of interfacing a host to a modem. Data is transferred between the host and the modem via a serial interface. The modem provides the physical layer implementation functions (i.e., transmission and reception functions) in addition to providing low level MAC layer function processing. Functions provided include collision detection, back-off algorithm according to a programmed back-off time, conditional transmission, automatic retransmissions and ACK/NACK packet generation and processing. This serves to eliminate any stringent access timing constraints usually placed on the host processor resulting in reduced cost and complexity of the host.
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