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. 29, 2005
Filed:
Nov. 13, 2000
James M. Clark, Verona, NJ (US);
James M. Clark, Verona, NJ (US);
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
An apparatus and method of detecting a transmission code from a received signal, where the transmission code is composed of a plurality of dithered codes. The codes can be dithered either by varying the length of the code or varying the phase of the code according to a dither pattern and can be a stationary dither pattern that is fixed and generally known. The method includes detecting the plurality of dithered codes, and detecting the long code based on the detected dithered codes. A detection signal is generated for each detected dither code, the detection signals are combined, and the long code is detected based on the combination of detection signals. If the composite code includes M dithered codes, the correlation signals are combined by summing the M correlation sums to generate a present final sum. The long code is detected by determining a largest final sum from among the present final sum and previously generated final sums, and associating a time of the largest final sum with the time of the transmission code.