H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/32 (2006.01) H04L 9/28 (2006.01)
Patent
CA 2619811
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.
Adhikari Akshay
Garg Sachin
Krishnakumar Anjur Sundaresan
Singh Navjot
Avaya Inc.
Avaya Technology Llc
Kirby Eades Gale Baker
LandOfFree
Signal watermarking in the presence of encryption does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal watermarking in the presence of encryption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal watermarking in the presence of encryption will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1978706