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.
Patent No.:
Date of Patent:
Apr. 08, 2003
Filed:
Jan. 10, 2000
Weng Fook Lee, Santa Clara, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
Adder circuitry is provided based on a reduced mathematical method to provide high-speed hexadecimal addition. A first adder adds the least significant binary digits of two hexadecimal numbers to provide a Digit and a Dot , and a second adder adds the second least significant binary digits to provide a Digit plus a Dot as a Sum and a CarryA. A secondary adder adds the Dot and the Sum to provide the sum of Digit plus Dot and Dot as a SumA. A generator generates a Dot of hexadecimal “1” for certain values of the Sum and the CarryA, and a detector triggers an output device, which outputs a hexadecimal “0”, to output the Dot in response to a certain pattern of hexadcecimal numbers in the Dot and the Sum . Thus, the least signifigant digit of the added hexadecimal numbers is Digit , the second least significant digit is SumA, and the third least significant digit is the output of the output device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile