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:
Aug. 05, 2003
Filed:
Dec. 30, 1999
Applicant:
Inventor:
Adi Shamir, Rehovot, IL;
Assignee:
Yeda Research and Development Co. Ltd., Rehovot, IL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/04 ;
U.S. Cl.
CPC ...
G09G 3/04 ;
Abstract
A method and apparatus for factoring large numbers which utilizes an optoelectronic device that has a wafer at one end that contains a plurality of LEDs. Each LED is associated with at least one period p and at least one delay d . A clock drives the plurality of LEDs responsive to clock cycles to flash for one clock cycle at times described by the processing p •r+d for r≧0. The light intensity flashed by the LEDs is controlled by a filter to be proportional to log (p ), and a photodetector positioned at the other end of the cylinder collects the light flashed by the LEDs.