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:
Dec. 05, 2006
Filed:
Mar. 26, 2002
James David Johnston, Morristown, NJ (US);
Shyh-shiaw Kuo, Basking Ridge, NJ (US);
Schuyler Reynier Quackenbush, Westfield, NJ (US);
William Turin, East Brunswick, NJ (US);
James David Johnston, Morristown, NJ (US);
Shyh-Shiaw Kuo, Basking Ridge, NJ (US);
Schuyler Reynier Quackenbush, Westfield, NJ (US);
William Turin, East Brunswick, NJ (US);
AT&T Corp., New York, NY (US);
Abstract
A system and method of generating a watermarked signal are disclosed. The system segments the signal into overlapping blocks using a window function and processes the overlapping blocks according to whether each block is odd- or even-numbered. The system windows the odd-numbered blocks, modulates the phase of each block in the frequency domain, transforms each modulated block in the time domain, windows each block transformed into the time domain and overlap-adds each odd-numbered block with each even-numbered block to generate the watermarked signal.