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:
Jun. 07, 2005
Filed:
Apr. 25, 2003
J. Barry Shackleford, Portola Valley, CA (US);
David Kent Cullers, Menlo Park, CA (US);
J. Barry Shackleford, Portola Valley, CA (US);
David Kent Cullers, Menlo Park, CA (US);
Other;
Abstract
A ones counter that accepts a binary input word of ones and zeros and provides a binary output word indicative of the number of ones within the input word. A two-dimensional array is built with a plurality of like cells connected in a regular manner with the first row of the array determining the least significant bit of the output word and each subsequent row determining the output word's next most significant bit. The first row of the array contains approximately one-half the number of cells as bits in the input word with each subsequent row of the array containing approximately one-half the number of cells of the preceding row with the final row containing a single cell that determines the most significant bit of the binary output word. The ones-count output word is computed asynchronously without clocking circuits or data storage elements.