Method and apparatus for synchronizing a software buffer...

Details Method and apparatus for synchronizing a software buffer... Method and apparatus for synchronizing a software buffer...

2002-02-06

2010-06-22

Lee, Chun-Kuan (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C710S053000, C710S054000, C710S055000, C710S056000, C710S057000

Reexamination Certificate

active

07743182

ABSTRACT:
Method and apparatus for synchronizing a software buffer index with an unknown hardware buffer index. Specifically, a method of processing data is disclosed comprising synchronizing a software buffer index to a hardware buffer index. The method sequentially searches through a plurality of buffers containing data to find a second buffer with unprocessed data. The method is implemented when the software buffer index points to a first buffer containing processed data. Thereafter, the software buffer index is reset to the next available buffer having processed data following the second buffer.

REFERENCES:
patent: 4637023 (1987-01-01), Lounsbury et al.
patent: 5860001 (1999-01-01), Cromer et al.
patent: 6134607 (2000-10-01), Frink
patent: 6470463 (2002-10-01), Chen et al.
“Wikipedia: Device Driver”, http://en.wikipedia.org/wiki/Device—driver.
“Introduction to Computer Systems,” May 3, 2001.

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