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:
Mar. 04, 2008
Filed:
Apr. 15, 2004
Avi Peer, Rehovot, IL;
Barak Dayan, Tel Aviv, IL;
Yaron Silberberg, Lehavim, IL;
Asher a Friesem, Rehovot, IL;
Avi Peer, Rehovot, IL;
Barak Dayan, Tel Aviv, IL;
Yaron Silberberg, Lehavim, IL;
Asher A Friesem, Rehovot, IL;
Yeda Research and Development Company Ltd., Rehovot, IL;
Abstract
A method and device are provided for automatically generating a key and a conjugate key to be used in an optical code division multiple access system. The method comprises applying a down conversion process to pump input light to thereby produce down converted broadband signal and idler fields that are complex conjugates of each other. The signal and idler fields thus serve as the key and its conjugate. Also provided according to the invention is a method for use in coding/decoding a signal in an optical code division multiple access system.