Kabushiki Kaisha Toshiba

Masatoshi Sumiyoshi

Seiichi Tanaka

Masahiko Mawatari

Takashi Koga

Kazumasa Ikeda

Toshimasa Ohtsuki

Hitoshi Kawabata

Naoki Mazda

Kazuyuki Kazama

A television/cinema scheme identification apparatus comprising a signal common processing section which acquires a field correlation pattern, a first pull-down identifying section which acquires an identification output of a first type pull-down scheme, and a second pull-down identifying section which acquires an identification output of a second type pull-down scheme, wherein the field correlation pattern is set identical in data length to the first and second comparison patterns with which the field correlation pattern is compared, and the first and second comparison patterns have a data length such that a mutually exclusive pattern relationship between the first and second comparison patterns is established.

Television/cinema scheme identification apparatus and identification method

A video signal processor, having an input receiving unit for selectively receiving either of a baseband video signal and a composite video signal are selectively input as an input video signal thereto, a H delay unit for delaying the selected input video signal by one line period ( H), an inter-line non-correlation component extractor for extracting inter-line non-correlation components between the input video signal and the H delay signal from the H delay unit, an inter-frame non-correlation component remover for removing inter-frame non-correlation components from the selected input video signal, a first subtractor responsive to the selection of the baseband video signal for subtracting the inter-line non-correlation component from the baseband video signal processed the inter-frame non-correlation component removal at the inter-frame non-correlation component removing means to result noise-reduced baseband video signals, a second subtractor responsive to the selection of the composite video signal the inter-line non-correlation component from the input composite video signal to result a first luminance signal, and a mixer for mixing a second luminance signal resulted from the inter-frame non-correlation component removal at the inter-frame non-correlation component remover with the first luminance signal from the second subtractor at a ratio defined by a motion signal to result a motion-adaptively processed luminance signal.

Video signal processor

A Y/C separating apparatus includes a first separator for separating a stationary C component which has a demodulator for demodulating a color difference signal from the composite video signal with a color subcarrier signal, a detector for detecting a frame difference signal between two adjacent frames of the color difference signal and a modulator for modulating the frame difference signal with the color subcarrier signal so as to reproduce the stationary C component. Also included is a second separator for separating a moving C component by detecting a line difference signal between adjacent lines of the composite video signal, a motion detector for detecting a motion signal as a frame change between adjacent frames of the composite video signal, a first subtractor for subtracting the stationary C signal from the composite video signal so as to separate a stationary Y component, a second subtractor for subtracting the moving C component from the composite video signal so as to separate a moving Y component, a first mixer responsive to the motion signal for mixing the stationary C component and the moving C component with each other so as to output the C component and a second mixer responsive to the motion signal for mixing the stationary Y component and the moving Y component with each other to output the Y component.

Luminance/chrominance separating apparatus

Growing community of inventors

Kawasaki, Japan

Masatoshi Sumiyoshi