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US 7,353,244 B2Granted
Dual-multiply-accumulator operation optimized for even and odd multisample calculations
AssigneeMarvell International Ltd.
InventorsBradley C. Aldrich, Nigel C. Paver, William T. Maghielse
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Abstract
According to some embodiments, a dual multiply-accumulate operation optimized for even and odd multisample calculations is disclosed.
Claims15
A method of processing a signal, the method comprising:
- calculating, in parallel, a first multiplication product of a first coefficient and a first sample, and a second multiplication product of the first coefficient and a second sample,
- wherein the first sample is an (n)th sample and the second sample is an (n+2)th sample in a plurality of sequential samples;
- accumulating subsequent multiplication products with the first multiplication product into a final product;
- and
- producing a digitally filtered output signal based on the final product.
2 more elements
An article comprising a storage medium having instructions stored thereon, the instructions operable to perform dual multiply-accumulate operations by causing a data processing system to:
- calculate, in parallel, a first multiplication product of a first coefficient and a first sample, and a second multiplication product of the first coefficient and a second sample,
- wherein the first sample is an (n)th sample and the second sample is an (n+2)th sample in the plurality of sequential sample;
- calculate, in parallel, a third multiplication product of a second coefficient and a third sample and a fourth multiplication product of the second coefficient and a fourth sample,
- wherein the third sample is an (n+1)th sample and the fourth sample is an (n+3)th sample in the plurality of sequential samples;
- and
- produce a digitally filtered output signal based on the first, second, third and fourth multiplication products.
3 more elements
Dependencies are inferred from the claim text.