Watermark communication and control systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
May 30, 2002
app pub date -
Nov 20, 2001
filing date -
Nov 22, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An enhanced television system (e.g., ATVEF-based) conveys enhancement data using an in-band, video watermark, channel. The system desirably is implemented using a layered architecture, so that the watermark nature of the communications channel is transparent to other layers that employ the enhancement data. Due to the in-picture nature of the communications channel, systems employing the detailed technology are not subject to some of the compatibility issues that are present with prior art techniques.
First Claim
Family
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Cited Art Landscape
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