Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output data buffering
Reexamination Certificate
2005-09-01
2009-11-17
Tsai, Henry W. H. (Department: 2184)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output data buffering
C710S055000
Reexamination Certificate
active
07620752
ABSTRACT:
A method of processing data input to a first-in first-out memory is disclosed. The method comprises steps of receiving input data words from a pipeline stage at an input of the first-in first-out memory; receiving data valid bits associated with the pipeline stage; generating a count associated with the data valid bits; and coupling the count to the first-in first-out memory. The step of generating a count associated with the data valid bits may comprise encoding the data valid bits to generate a valid data word representing the number of pipeline stages having valid data. The method of further comprises a step of generating an almost full signal based upon the count, and in particular generating an almost full signal when a read pointer incremented by the count of valid bits in the pipeline stages equals a write pointer. A circuit for processing data is also disclosed.
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King John J.
Roche John B
Tsai Henry W. H.
Xilinx , Inc.
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