Patent
Television signal frame number converter
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TLDR
In this paper, a frame interpolation process is used to convert an input television signal having a first frame number per second into an output television signal with a second frame number in accordance with an interpolation coefficient.Abstract:
In a television signal frame number converter for converting an input television signal having a first frame number per second into an output television signal having a second frame number per second in accordance with an interpolation coefficient, a processing unit (11) processes two successive frames on the input television signal by a frame interpolation process to produce a processed signal. A memory unit (12) memorizes the processed signal in synchronism with a write-in address signal (141) given by a first frame synchronizing signal (13) of the input television signal and is read out by a read-out address signal (171) given by a second frame synchronizing signal (16) of a reference television signal having the second frame number per second. The converter determines (15) the interpolation coefficient in accordance with a time interval between a write-in start timing of the memory unit and a read-out start timing of the memory unit.read more
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Patent
Method and apparatus for scaling and reducing flicker with dynamic coefficient weighting
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Patent
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TL;DR: An image data conversion processing device includes an issue unit (8), plural line storing units (3) and a generating unit (4) for converting to a television signal as mentioned in this paper. But this device is limited to image data of various formats held in a Video RAM.
Patent
Television standard conversion apparatus
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TL;DR: In this article, a digital field memory was used to convert a signal from the 625/50 standard to the 525/60 standard, followed by a scanning line interpolator, which converted the spatial positions of the scanning lines, and finally a digital line memory for converting the number of scanning lines from 625 to 525.
Patent
Circuit arrangement for converting the data block rate.
TL;DR: In this article, a random access memory with the storage capacity for one data block is used for converting the repetition rate of data blocks of an input signal into an output signal having a data block repetition rate f 2.
References
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Patent
Motion vector estimation in television images
TL;DR: In this article, an approach for motion vector estimation in a television image using a digitized signal representing the image, comprises a vector filter (36) and a vector calculator (37) for determining motion in the image at points spaced a predetermined number of pixels horizontally and vertically by a block matching technique, thereby to derive motion vectors.
Patent
Television standards converters
TL;DR: In this paper, a television standards converter comprises three field stores (14,15,16) and four 4-line stores (17 to 20) for receiving an input digital television signal of one standard and deriving therefrom arrays of sixteen lines.