Video processing circuits and methods using same buffer for video decoder and cross color suppressor
AssigneeMediatek Inc.
InventorsPo-Wei Chao, I-Hong Chen
Life of this patent
Estimating the term…
Abstract
A video processing circuit capable of processing a composite signal and a non-composite signal, includes: a line buffer; a frame buffer; a video decoder for decoding the composite signal by utilizing the line buffer and the frame buffer as temporary buffers of the video decoder; a cross color suppressor for performing color suppression on the non-composite signal by utilizing the line buffer and the frame buffer as temporary buffers of the cross color suppressor; and a path controller, coupled to the video decoder and the cross color suppressor, for coupling the line buffer and the frame buffer to the video decoder or the cross color suppressor when utilizing the line buffer and the frame buffer is required.
Claims27
A video processing circuit capable of processing a composite signal and a non-composite signal, comprising:
- a line buffer;
- a frame buffer;
- a video decoder for decoding the composite signal by utilizing the line buffer and the frame buffer as temporary buffers of the video decoder;
- a cross color suppressor for performing color suppression on the non-composite signal by utilizing the line buffer and the frame buffer as temporary buffers of the cross color suppressor;
- and
- a path controller, coupled to the video decoder and the cross color suppressor, for coupling the line buffer and the frame buffer to the video decoder or the cross color suppressor when utilization of the line buffer and the frame buffer is required.
A video processing method capable of processing a composite signal and a non-composite signal, comprising:
- providing a line buffer;
- providing a frame buffer;
- decoding the composite signal by utilizing the line buffer and the frame buffer as temporary buffers of a video decoder;
- performing color suppression on the non-composite signal by utilizing the line buffer and the frame buffer as temporary buffers of a cross color suppressor;
- and
- coupling the line buffer and the frame buffer to the video decoder or the cross color suppressor when utilization of the line buffer and the frame buffer is required.
Dependencies are inferred from the claim text.