Signal processing device and signal processing method

Details Signal processing device and signal processing method Signal processing device and signal processing method

2005-01-04

2005-01-04

Lee, Michael H. (Department: 2614)

Television

Format conversion

Changing number of fields for standard conversion

C348S443000

Reexamination Certificate

active

06839089

ABSTRACT:
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.

REFERENCES:
patent: 4296434 (1981-10-01), Drewery et al.
patent: 4881125 (1989-11-01), Krause
patent: 4982280 (1991-01-01), Lyon et al.
patent: 5742351 (1998-04-01), Guede
patent: 6072542 (2000-06-01), Wilcox et al.

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