DSP unit for multi-level global accumulation

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United States of America Patent

PATENT NO 6601077
SERIAL NO

09541148

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In one embodiment, a digital signal processor (DSP) is described for multi-level global accumulation. The DSP includes a plurality of absolute difference determinators in a first stage. The absolute difference determinators may include arithmetic logic units (ALUs) in combination with multiplexers. By using multiple absolute difference determinators, the throughput of the DSP is increased. An existing multiplier may be reconfigured into an adder tree to process the absolute difference results obtained in the first stage. To further increase throughput, multiple DSPs with multiple absolute difference determinators may be operated in parallel.

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Patent Owner(s)

Patent OwnerAddress
ANALOG DEVICES INCONE ANALOG WAY WILMINGTON MA 01887

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aldrich, Bradley C Austin, TX 47 458
Kolagotla, Ravi Austin, TX 22 646

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