Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Reexamination Certificate
2009-07-29
2010-06-15
Tran, Trang U (Department: 2622)
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
C348S620000, C348S622000, C348S731000
Reexamination Certificate
active
07738043
ABSTRACT:
According to one embodiment, a noise reducing circuit includes a frame memory configured to frame-delay a video signal, a first arithmetic unit configured to subtract the frame-delayed video signal given by the frame memory from the video signal to output a first frame difference signal, a first rectangular wave removing unit configured to remove a rectangular wave component from the first frame difference signal to generate a second frame difference signal, a first pulse discriminating unit configured to receive the second frame difference signal, remove a continuous pulse component from the second frame difference signal, and output a single pulse component, and a second arithmetic unit configured to subtract the single pulse component from the video signal.
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Blakely , Sokoloff, Taylor & Zafman LLP
Kabushiki Kaisha Toshiba
Tran Trang U
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