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:
Sep. 28, 1999
Filed:
Jul. 10, 1997
Daniel Duponteil, Vanves, FR;
Julie Yuan-Wu, Versailles, FR;
France Telecom, Paris, FR;
Abstract
A method of digital differential demodulation if which the signal to be demodulated is over sampled at a rate double the rate of the elements of the spread sequence, the products of a current sample and the preceding conjugated sample are calculated and these products are summed, possibly weighting them, in a window covering at least a part of the period of the information symbols, the real part of this sum is taken in order to obtain a decision sample used to reconstruct the information. The method is applicable to multiple access type transmissions with code division.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile