Kabushiki Kaisha Toshiba

Toshimasa Ohtsuki

Masatoshi Sumiyoshi

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 digital chroma signal processing apparatus wherein control signals represent the burst period, the image period and the remaining period of a digital chrominance signal. A multiplier receives a selected one of an ACC signal and the chrominance signal, multiplies it with a second signal and outputs the resultant produced. A matrix coefficient section includes a generator to generate a plurality of matrix coefficients; a cyclic arrangement of dynamic shift registers to store selected matrix coefficients; and a multiplexer to input to the dynamic shift registers, in accordance with the control signal, a selected one of the product signal and the output signal of the dynamic shift registers. The second signal is generated by a selection between the ACC signal and the output signal of the shift registers. The resultant chrominance signal processing circuit is thus controlled by a small number of simple control signals.

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Saitama, Japan

Toshimasa Ohtsuki