Boots – shoes – and leggings
Patent
1988-09-16
1990-05-15
Lall, Parshotam S.
Boots, shoes, and leggings
358167, 358 36, H04N 521
Patent
active
049263617
ABSTRACT:
A digital noise reducer includes an addition circuit for adding a digital input video signal supplied at one input thereof and a signal supplied at the other input thereof and for outputting a resultant sum signal, a delay circuit for delaying the output signal of the addition circuit by an input unit period of the digital input video signal, a subtraction circuit supplied with the digital input video signal and an output signal of the delay circuit, the subtraction circuit forming and outputting a difference component signal for the digital input video signal and the output signal of the delay circuit, and a characteristic adjustment circuit for manipulating a signal characteristic of the difference component output of the subtraction circuit in accordance with the characteristic of the difference component signal outputted from the subtraction circuit and/or a characteristic of a digital output video signal outputted from the addition circuit and for outputting a resultant manipulated signal to the other input of the addition circuit.
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Masuda Michio
Minabe Kohji
Nishijima Hideo
Ohtsubo Hiroyasu
Owashi Hitoaki
Hitachi , Ltd.
Lall Parshotam S.
Mattson Brian M.
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