Patent ID: 6742188
Filing Date: 2004-05-25
Classification: A63H,G06F,G08C,G10H,G10L,H04L,H04W

Abstract:
A method for encoding control data in a video signal defining a plurality of frames, each frame comprising a plurality of lines, comprising the steps of:concatenating encoded data with the lines of the video signal to create an encoded video signal, such that the encoded data are included within the plurality of frames that define the video signal, and are not concatenated with either of: portions of the video signal corresponding to a vertical blanking interval, and portions of the video signal corresponding to a visible raster; and configuring the encoded data to define signal detection data comprising a plurality of data bits and content data in association with each frame, the content data comprising a plurality of content words, each content word comprising a plurality of data bits and a plurality of error correction bits defining a correction sequence that enables errors in the data bits to be detected and corrected, the content data defining: a first address associated with a first device; device-specific control data for the first device; a second address associated with a second device; and device-specific control data for the second device.