System and method for video processing
First Claim
1. Video processing apparatus for processing video conforming to at least a first and a second video standards, each video standard having a fixed standard number of frames per second and a fixed standard data rate, the first and second video standards having the same standard number of frames per second and respectively different standard data rates, the apparatus comprisinginput storage for storing video data, capable of being written to in each of a plurality of video standards;
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Accused Products
Abstract
A video processing apparatus can receive video at two different rates, which may be High Definition video and Standard Definition Video. The input video is stored and read into a processor at a fixed internal rate for processing at that rate. Processed video is output to a further store from which it can be read at either of the input rates.
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Citations
22 Claims
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1. Video processing apparatus for processing video conforming to at least a first and a second video standards, each video standard having a fixed standard number of frames per second and a fixed standard data rate, the first and second video standards having the same standard number of frames per second and respectively different standard data rates, the apparatus comprising
input storage for storing video data, capable of being written to in each of a plurality of video standards; - and
a video processor for reading stored video data from the input storage and processing the video data at the standard number of frames per second and at an internal data rate which is greater than the standard data rate of the first video standard and less than the standard data rate of the second video standard, such that first video data written to the input storage in a first video standard can be processed in the video processor at the same internal data rate as second video data written to the input storage in a second video standard. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Video processing apparatus for processing video data conforming to at least a first and a second video standards, each video standard having a fixed standard number of frames per second and a fixed standard data rate, the first and second video standards having the same standard number of frames per second and respectively different standard data rates, the apparatus comprising:
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input storage for storing video data; video processor for reading stored video data from the input storage and processing the video data at the standard number of frames per second and at an internal data rate which is greater than the standard data rate of the first video standard and less than the standard data rate of the second video standard; and output storage for storing processed video data generated by the video processor at said internal data rate.
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13. A video mixer comprising a video processing apparatus for processing video conforming to any one of a plurality of video standards, each video standard having a fixed standard number of frames per second and a fixed standard data rate, the plurality of video standards having the same standard number of frames per second and respectively different standard data rates, the apparatus comprising
input storage for storing video data, capable of being written to in each of a plurality of video standards; - and
a plurality of video processors for reading, stored video data from the input storage and processing the video data at the standard number of frames per second and at an internal data rate independent of the standard data rate associated with the video data, such that first video data written to the input storage in a first video standard can be processed in the video processor at the same internal data rate as a second video data written to the input storage in a second video standard, the mixer being adapted to process simultaneously video conforming to at least two different standards.
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14. A method of simultaneously processing video data conforming to a first video standard with video data conforming to a second video standard, each video standard having a fixed standard number of frames per second and a fixed standard data rate, the first and second video standards having the same standard number of frames per second and respectively different standard data rates, comprising the steps:
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storing video data in video data storage in each of a plurality of video standards; reading stored video data; and processing in a video data processor the read video data at the standard number of frames per second and at an internal data rate which is the same for video data conforming to the first video standard as for video data conforming to the second video standard. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification