METHOD AND APPARATUS FOR TRANSMITTING AND USING PICTURE DESCRIPTIVE INFORMATION IN A FRAME RATE CONVERSION PROCESSOR
First Claim
1. A method of frame rate conversion, the method comprising:
- using descriptive information derived from an input video signal to create new frames based on original frames in the input video signal; and
combining the new frames with the input video signal to produce an output video signal with a different frame rate than the input video signal.
8 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus of frame rate conversion where descriptive information relating to an input video signal is transmitted to the frame rate converter along with the input signal. The descriptive information is used to interpolate frames, allowing the interpolator to make pixel analysis using the descriptive information relating to the original signal. The descriptive information is derived by a compositor/scaler and is transmitted to the frame rate converter with the composited/scaled signal. There may be multiple input signals that are composited to make a final composited video output such as a picture-in-picture display. The information may be transmitted in-band with the video signal received by the frame rate converter. Alternatively, the descriptive information may be transmitted in a separate stream in a side-band manner. In another embodiment, the descriptive information may be transmitted to the frame rate converter separate from the video input source as commands or packets.
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Citations
23 Claims
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1. A method of frame rate conversion, the method comprising:
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using descriptive information derived from an input video signal to create new frames based on original frames in the input video signal; and combining the new frames with the input video signal to produce an output video signal with a different frame rate than the input video signal. - View Dependent Claims (2, 3)
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4. A method of compositing a video image, the method comprising:
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maintaining descriptive information derived from an input video signal while the input video signal is composited; and transmitting a composited video signal and the descriptive information to a frame rate converter. - View Dependent Claims (5, 6, 7)
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8. A method of frame interpolation in a frame rate converter, the method comprising:
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receiving an input video signal and descriptive information associated with the input video signal; and using the descriptive information to create new video frames based on frames that are temporally near a new frame being created.
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9. A frame rate converter comprising:
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a frame interpolater configured to use descriptive information related to a composited video signal to create new frames based on the composited video signal; and a combiner for inserting the new frames in the composited video signal to create an output video signal. - View Dependent Claims (10, 11, 12)
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13. A frame interpolator configured to receive an input signal and descriptive information relating to the input signal, and wherein new frames are created based on the data contained in the input signal and based in part on the descriptive information.
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14. A compositor/scaler comprising:
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a processor capable of converting a plurality of input video streams into a composited video stream; and a transmitter capable of providing said composited video stream and descriptive information related to each input video stream in said plurality of input streams as outputs of said compositor/scaler. - View Dependent Claims (15, 16, 17)
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18. A video processing system comprising:
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a compositor/scaler capable of receiving a plurality of video input streams and maintaining descriptive information about said plurality of video input streams, wherein said compositor/scaler outputs a single video output stream and transmits said descriptive information; and a frame rate converter that receives said single video output stream and said descriptive information, wherein said descriptive information is used by said frame rate conversion processor to make frame rate conversion decisions.
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19. A machine readable storage medium having a stored set of instructions executable by a machine, the instructions comprising:
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instructions to create a composited video stream from a plurality of input video streams; instructions to maintain descriptive information relating to and for each input video stream in the plurality of input video streams; and instructions to create a final video output stream having a different frame rate than the composited video stream using the descriptive information. - View Dependent Claims (20, 21, 22)
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23. A computer-readable medium containing a set of instructions adapted to create a processor, wherein the processor is configured to:
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create a composited video stream from a plurality of input video streams; maintain descriptive information for each input video stream in the plurality of input video streams; and create a final video output stream using the descriptive information and having a different frame rate than the composited video stream.
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Specification