Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2008-03-18
2008-03-18
Tan, Vibol (Department: 2819)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
C708S505000, C708S650000, C326S038000
Reexamination Certificate
active
11465252
ABSTRACT:
A programmable logic integrated circuit device (“PLD”) includes programmable logic and a dedicated (i.e., at least partly hard-wired) digital signal processing region for performing or at least helping to perform digital signal processing tasks that are unduly inefficient to implement in the more general-purpose programmable logic and/or that, if implemented in the programmable logic, would operate unacceptably or at least undesirably slowly. The digital signal processing region may include multiple digital signal processing stages. The digital signal processing region may include a multiplier stage and one or more stages that can operate in combination with the multiplier stage. The digital signal processing region has a plurality of modes such as for providing multiply-and-accumulate operation, multiply-and-add operation, etc.
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Hwang Chiao Kai
Langhammer Martin
Starr Gregory
Altera Corporation
Ingerman Jeffrey H.
Tan Vibol
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