| 摘要 |
There is provided a signal processing device in which its structure is simplified and a source subjected to a pull-down processing is detected at high precision. The signal processing device includes a comparison portion and a detection portion in which fields constituting a signal source are successively inputted, two fields are compared with each other, and it is judged whether or not there is a motion between the two fields, and a logic block for shifting a state on the basis of a judgement result as to whether or not there is a motion in the detection portion and for controlling judgement characteristics of the detection portion on the basis of the shifted state.
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