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:
Jul. 03, 2007
Filed:
Nov. 28, 2001
Gene L. Cangiani, Parsippany, NJ (US);
Peter M. Brodie, Oakland, NJ (US);
James M. Clark, Verona, NJ (US);
Dennis Mccrady, Holmdel, NJ (US);
Gene L. Cangiani, Parsippany, NJ (US);
Peter M. Brodie, Oakland, NJ (US);
James M. Clark, Verona, NJ (US);
Dennis McCrady, Holmdel, NJ (US);
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
A transmitter employing a cryptographic algorithm and key generates and transmits a staggered pulse signal that includes a plurality of high-power pulses that are part of a pseudonoise (PN) code. The high-power pulses are separated by a group of low-power chips and the time interval between the high-power pulses is varied according to the cryptographic algorithm and key. A receiver, employing a corresponding cryptographic algorithm and key receives the signal and correlates it with a locally generated code that is modified according to the cryptographic algorithm and key to detect the phase of the received PN code. The receiver also can include a matched filter configured according to the cryptographic algorithm and key to detect the sequence of high-power pulses in the received signal.