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:
Nov. 08, 2011
Filed:
Feb. 15, 2007
Akshay Adhikari, Basking Ridge, NJ (US);
Sachin Garg, Green Brook, NJ (US);
Anjur Sundaresan Krishnakumar, Rocky Hill, NJ (US);
Navjot Singh, Denville, NJ (US);
Akshay Adhikari, Basking Ridge, NJ (US);
Sachin Garg, Green Brook, NJ (US);
Anjur Sundaresan Krishnakumar, Rocky Hill, NJ (US);
Navjot Singh, Denville, NJ (US);
Avaya Inc., Basking Ridge, NJ (US);
Abstract
A method is disclosed that enables the transmission of a digital message along with a corresponding information signal, such as audio or video. The supplemental information contained in digital messages can be used for a variety of purposes, such as enabling or enhancing packet authentication. In particular, a telecommunications device that is processing an information signal from its user, such as a speech signal, encrypts the information signal by performing a bitwise exclusive-or of an encryption key stream with the information signal stream. The device, such as a telecommunications endpoint, then intersperses the bits of the digital message throughout the encrypted signal in place of those bits overwritten, in a process referred to as 'watermarking.' The endpoint then transmits the interspersed digital message bits as part of a composite signal that also comprises the encrypted information bits. No additional bits are appended to the packet to be transmitted, thereby addressing compatibility issues.