Video processor for handling irregular input
AssigneeNovatek Microelectronics Corp.
InventorsChih Chang, I-Feng Lin, Hsiao-En Chang
Life of this patent
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Abstract
A video processor is configured to perform the following steps: receiving a series of input frames; calculating a buffer stage value according to the series of input frames, wherein the buffer stage value corresponds to a status of the input frames stored in a frame buffer of the video processor; and selecting a frame set from the input frames stored in the frame buffer for generating an interpolated frame as an output frame to be output by the video processor according to the buffer stage value.
Claims21
A method of a video processor, configured to perform the following steps:
- receiving a series of input frames;
- calculating a buffer stage value according to the series of input frames, wherein the buffer stage value corresponds to a status of the input frames stored in a frame buffer of the video processor;
- and
- selecting a frame set from the input frames stored in the frame buffer for generating an interpolated frame as an output frame to be output by the video processor according to the buffer stage value.
A method of a video processor, configured to perform the following steps:
- receiving a series of input frames;
- determining an expected input gap value according to a relativity of an input frame rate of the series of input frames and an output frame rate of a series of output frames output by the video processor;
- determining whether an actual input gap value is different from the expected input gap value;
- calculating a phase step when the actual input gap value is determined to be different from the expected input gap value to obtain the phase step which is different from a regular phase step determined based on the relativity of the input frame rate and the output frame rate;
- and
- generating an interpolated frame to be output as an output frame among the series of output frames based on a selected frame set by using the calculated phase step.
Dependencies are inferred from the claim text.