The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 03, 1996

Filed:

Oct. 11, 1994
Applicant:
Inventors:

Shiang-Jhy Lai, Taipei, TW;

Hwai-Tsu Chang, Nantou, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
3647365 ;
Abstract

Parallel processing architecture is used for an adder and its 'look-ahead' zero-flag generator, which generates a flag signal for the most significant bit of the sum of the adder. The look-ahead zero-flag is generated with combinatorial logic circuits, which are fed from the addends and augents of the different bits for the adder and then decoded. The combinatorial logic circuits may comprise AND gates and XOR gates in a gate-array, and the decoder may be a programmable logic array (PLA). The computation time for the zero-flag thus generated is shorter than the computation time for the sum of the adder.


Find Patent Forward Citations

Lai, Shiang-Jhy. (1996). Zero-flag generator for adder (U.S. Patent No. 5581496). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5581496

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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