H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/34
H04N 7/08 (2006.01) H04N 11/24 (2006.01)
Patent
CA 2018398
Abstract of the Disclosure This invention relates to an additional signal multiplexing device for multiplexing an additional signal on the vertical scanning area of a main signal and an additional signal separation device for separating the additional signal from the main signal on which the additional signal is multiplexed. In an addi- tional signal multiplexing system, the main signal is output at a field repetition rate, and the additional signal is output at the field repetition rate after the phase of the additional signal is inverted for every other field, and the thus output signals are multiplexed on each other. In an additional signal separation system, the addition signal is separated by deriving the difference of the multiplexed signals between fields.
Kawai Kiyoyuki
Yasuki Seijiro
Kabushiki Kaisha Toshiba
Kawai Kiyoyuki
Marks & Clerk
Yasuki Seijiro
LandOfFree
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