H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/08 (2006.01) H04N 7/081 (2006.01) H04N 17/00 (2006.01) H04H 9/00 (2006.01)
Patent
CA 2106486
2106486 9219073 PCTABS00017 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 (18), program identification, remote machine control, broadcast verification, and signal quality detection and measurement.
Bronfin Kenneth A.
Davenport Francis A.
Mahrer Stephen M.
Wilson Robin W.
National Broadcasting Company
Osler Hoskin & Harcourt Llp
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