| Patent Number |
Title Of Patent |
Date Issued |
| 5699120 |
Motion vector using a transform function identification signal |
December 16, 1997 |
| A digital picture manipulator processes a video image signal according to a transform function and outputs both a transformed vide image signal and a transform function information signal. A compressed video encoder uses the transform function information signal in simplifying its search |
| 5696849 |
Cascaded anti-aliasing filter control for sampled images |
December 9, 1997 |
| A cascaded anti-aliasing filter control circuit for sampled images has a plurality of video effects modules coupled in a chain,. each module performing a particular transform of a cascaded video effect. An input module has as inputs constants for the particular transform and a pixel |
| 5638133 |
Method of creating video effects by use of keyframes |
June 10, 1997 |
| A video effect is created with a video processing machine having a plurality of functions, each of which has a state that is selectively variable in response to change in an associated function parameter. The method comprises selecting a set of functions, specifying a starting keyfra |
| 5619198 |
Number format conversion apparatus for signal processing |
April 8, 1997 |
| A number format conversion apparatus for signal processing has as inputs an exponent value and a mantissa value, the exponent and mantissa values representing a numerical value for a signal sample. An operator inputs an exponent max/min range and an offset, depending upon what conversion |
| 5173948 |
Video image mapping system |
December 22, 1992 |
| A video mapping system includes a weighting coefficients generator and a two-dimensional resampling filter that efficiently utilize memory resources and operate fast enough to process a video image stream without introducing artifacts through temporal interpolation. This system can a |
| 4994803 |
Random number dither circuit for digital-to-analog output signal linearity |
February 19, 1991 |
| Distortion in a digital-to-analog converter (DAC) is eliminated by adding a digital random number to each sample of the digital signal, converting the sum into analog form, and subtracting from this analog sum the analog counterpart of the digital random number. The result is the analog |
