Video signal processing apparatus

Details Video signal processing apparatus Video signal processing apparatus

2006-11-21

2006-11-21

Hsia, Sherrie (Department: 2622)

Television

Format conversion

C348S459000

Reexamination Certificate

active

07139030

ABSTRACT:
A video signal processing apparatus in which an input video signal is written in a frame memory on a line sequential scanning frame unit base in synchronism with a first vertical synchronizing signal and which the line sequential scanning video signal written in the frame memory is read out in synchronism with a second vertical synchronizing signal. The second vertical synchronizing signal having a frequency different from a frequency of a first vertical synchronizing signal is generated in synchronism with the first vertical synchronizing signal of a starting frame of five frames forming a pattern after the conversion in the 2-3 pulldown conversion system when it is judged that the input video signal is based on a telecine-converted video signal.

REFERENCES:
patent: 6111610 (2000-08-01), Faroudja
patent: 6154257 (2000-11-01), Honda et al.
patent: 6222589 (2001-04-01), Faroudja et al.
patent: 2002/0036603 (2002-03-01), Nagakubo et al.
patent: 99/34597 (1999-07-01), None

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