05200822 is referenced by 403 patents and cites 21 patents.
Data are added invisibly to the active video component of a television signal by a modulated carrier. The data, upon recovery, may be used for numerous purposes, including network signaling, data transmission, program identification, remote machine control, broadcast verification, and signal quality detection and measurement.
- Title
-
Arrangement for and method of processing data, especially for identifying and verifying airing of television broadcast programs
- Application Number
-
7/690111
- Publication Number
-
5200822
- Application Date
-
April 23, 1991
- Publication Date
-
April 6, 1993
- Inventor
-
Francis A Davenport
Haddonfield
NJ, US
W Robin Wilson
New York
NY, US
Stephen M Mahrer
Mt. Holly
NJ, US
Kenneth A Bronfin
New York
NY, US
- Agent
-
Rosenman & Colin
- Assignee
-
National Broadcasting Company
NY, US
- IPC
-
H04N 7/08