Data watermarks created by using an uneven sampling period

Details Data watermarks created by using an uneven sampling period Data watermarks created by using an uneven sampling period

2005-05-05

2010-02-23

Lau, Tung S (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

Reexamination Certificate

active

07668673

ABSTRACT:
Input signals are electronically watermarked using an uneven or non-uniform sampling rate. The uneven or non-uniform sampling may be pseudo-random. The uneven or non-uniform sampling meets the Nyquist criterion so that aliasing and loss of content are avoided. The resulting sampling pattern in the sampled data is detectable by a comparison with the original source data.

REFERENCES:
patent: 4773092 (1988-09-01), Huang
patent: 5245661 (1993-09-01), Lee et al.
patent: 5687236 (1997-11-01), Moskowitz et al.
patent: 5822432 (1998-10-01), Moskowitz et al.
patent: 5889868 (1999-03-01), Moskowitz et al.
patent: 7051203 (2006-05-01), Smith

Affiliated with

Also associated with

Rating

Data watermarks created by using an uneven sampling period does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data watermarks created by using an uneven sampling period, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data watermarks created by using an uneven sampling period will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4199995