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US 6,191,824 B1Granted
Video signal processing apparatus
AssigneeKabushiki Kaisha Toshiba
InventorYoshihiko Ogawa
Life of this patent
Estimating the term…
Abstract
When both a progressive scanning video signal (for example, telecine signal) and an interlace scanning signal are present, the telecine signal is processed with pulldown information. The interlace scanning signal is processed without the pulldown information. Thus, even if both a telecine signal and a conventional interlace scanning signal are present, the pulldown information can be effectively used.
Claims7
A video signal processing apparatus, comprising:
- means for determining whether an input signal is a progressive scanning first video signal or an interlace scanning second video signal and generating a determination signal corresponding to the determined result;
- first converting means for converting said first video signal into an interlace scanning third video signal when said first video signal has been input;
- means for outputting a fourth video signal, said fourth video signal corresponding to said second video signal when said determination signal represents that said second video signal has been input and corresponding to said third video signal when said determination signal represents that said first video signal has been input;
- second converting means for converting said fourth video signal into a progressive scanning signal corresponding to motion information of said fourth video signal when said fourth video signal corresponds to said second video signal;
- third converting means for converting said fourth video signal into a progressive scanning signal corresponding to said first converting means when said fourth video signal corresponds to said third video signal;
- and
- means for selecting an output signal of said second converting means and outputting a fifth video signal when said determination signal represents that said second video signal has been input and for selecting an output signal of said third converting means and outputting a fifth video signal when said determination signal represents that said first video signal has been input.
4 more elements
A video signal processing apparatus, comprising:
- means for determining whether an input signal is a progressive scanning first video signal or an interlace scanning second video signal and generating a determination signal corresponding to the determined result;
- first converting means for converting said first video signal into an interlace scanning third video signal when said first video signal has been input;
- means for generating a field determination signal that represents that the next field of said third video signal are generated with the same frame as said first video signal;
- means for outputting a fourth video signal, said fourth video signal corresponding to said second video signal when said determination signal represents that said second video signal has been input and corresponding to said third video signal when said determination signal represents that said first video signal has been input;
- means for generating a control signal with said determination signal and said field determination signal, the control signal containing the information of both said determination signal and said field determination signal;
- second converting means for converting said fourth video signal into a progressive scanning signal corresponding to motion information of said fourth video signal when said fourth video signal corresponds to said second video signal;
- third converting means for converting said fourth video signal into a progressive scanning signal corresponding to said first converting means with said field determination signal contained in said control signal when said fourth video signal corresponds to said third video signal;
- and
- means for selecting an output signal of said second converting means and outputting a fifth video signal when said determination signal contained in said control signal represents that said second video signal has been input and for selecting an output signal of said third converting means and outputting a fifth video signal when said determination signal contained in said control signal represents that the said first video signal has been input.
6 more elements
A video signal processing apparatus, comprising:
- means for determining whether an input signal is a progressive scanning first video signal or an interlace scanning second video signal and generating a determination signal corresponding to the determined result;
- first converting means for converting said first video signal into an interlace scanning third video signal when said first video signal has been input;
- means for generating a field determination signal that represents that the next field of said third video signal are generated with the same frame as said first video signal;
- means for outputting a fourth video signal, said fourth video signal corresponding to said second video signal when said determination signal represents that said second video signal has been input and corresponding to said third video signal when said determination signal represents that said first video signal has been input;
- means for generating a control signal containing the information of both said determination signal and said field determination signal;
- and
- means for processing the fourth video signal with said field determination signal contained in said control signal when said determination signal contained in said control signal represents that said first video signal has been input.
4 more elements
Dependencies are inferred from the claim text.