Extended definition television systems
First Claim
Patent Images
1. A method of adding information to a broadcast motion picture signal, the method comprising:
- decomposing sequential frames of said motion picture into luminance and chrominance values;
generating a chrominance signal from said chrominance values at a fraction of the rate of said motion picture signal frames; and
modulating the generated chrominance signal to encode additional information.
3 Assignments
0 Petitions
Accused Products
Abstract
Methods and systems for adding additional information to broadcast motion picture signals so that an advanced receiver can decode that information to provide improved picture quality, while a standard receiver will display an image with minimally visible impairments. In particular, chrominance information can be generated at a fraction of the frame rate and the alternate frames then used to encode additional data, such as high definition luminance information in the chrominance signal.
-
Citations
13 Claims
-
1. A method of adding information to a broadcast motion picture signal, the method comprising:
-
decomposing sequential frames of said motion picture into luminance and chrominance values; generating a chrominance signal from said chrominance values at a fraction of the rate of said motion picture signal frames; and modulating the generated chrominance signal to encode additional information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An extended definition television system for adding information to a broadcast motion picture signal, the system comprising:
-
decomposing means for decomposing sequential frames of said motion picture signal into luminance and chrominance values; chrominance signal-generating means for generating a chrominance signal at a fraction of the rate of said motion picture signal frames; and modulating means for modulating the generated chrominance signal to encode additional information. - View Dependent Claims (9, 10, 11, 12, 13)
-
Specification