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| Number | Title | Issue Date |
| 7432987 | Method of motion detection for 3D comb filter video decoder A method of motion detection for a 3D comb filter video decoder is disclosed. In this method, a plurality of sampled data FmPx,y is obtained and temporarily stored after a composite video signal is sampled, wherein FmPx,y ... | 10/07/2008 |
| 7274408 | [Method of motion detection for 3D comb filter video decoder] The invention is directed to a method of 3-dimensional (3D) comb filter video decoder. The composite video signal is sampled to obtain multiple sampling data FmPx,y, which represents the yth pixel of the Xth line in the m | 09/25/2007 |
| 7236211 | Method of inter-frame Y/C separation The present invention discloses a method of inter-frame Y/C separation. The method first samples a composite video signal for temporarily storing a plurality of sampled data FmPx,y, wherein the FmPx,y represents data of th... | 06/26/2007 |
| 7196736 | Method of YC separation of YC separation filter A YC separation filter of 3-dimensional YC separation for separating a luminance signal and a chromatic signal adaptively to motion of picture image. The YC Separation filter controls frame delay operation of an input composite video signal per clock period based on... | 03/27/2007 |
| 7113226 | Method for generating a representation of a particular signal among a plurality of signals representing lines in a display A method for generating a representation of a particular signal among video signals representing a display, the signals including a first component having a first bandwidth and a second component having a smaller second bandwidth, includes the steps of: (a) measurin... | 09/26/2006 |
| 7061548 | Filter device A filter device (1) includes a main filter unit (10), such as a 2-D comb filter, implemented in hardware, with an input for receiving a video signal (Φ) and an output for providing a filtered video signal (Φ1), a controllable temporal n... | 06/13/2006 |
| 6947060 | Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance... | 09/20/2005 |
| 6914638 | Three-dimensional enhancement processing for television broadcasting signals A method and an apparatus of decoding a television broadcasting signal are disclosed. In one embodiment, an improved video decoder converts the video signal into a digitized video signal. The improved video decoder then separates luminance information and chrominanc... | 07/05/2005 |
| 6809778 | Apparatus and method for YC separation and three-line correlation detection Disclosed are an apparatus and a method for YC separation and three-line correlation detection with high accuracy, which allow the YC separator to generate reliable Y signals. The correlation detecting apparatus includes a sub-correlation detector. The detector chec... | 10/26/2004 |
| 6674488 | Luminance and color difference signal separator for adaptively selecting color difference signals output from comb and line filters A luminance (Y) and a color difference (C) signal separator switches filters according to an image and separates a Y signal and a C signal included in a composite color picture signal to eliminate a degradation which would otherwise be involved at a trans... | 01/06/2004 |
| 6300985 | Composite video decoder for providing a high quality serial digital output A composite video decoder that separates digitized composite video signals into luminance and chrominance, demodulates the chrominance signal to its R-Y and B-Y components, removes time base errors, synchronizes the output to the station reference signal ... | 10/09/2001 |
| 6288754 | YC separation circuit A video composite signal is thinned by sub-Nyquist sampling signal to reduce a capacity of a memory, a carrier chrominance signal is separated from the thinned video composite signal by an inter-frame YC separation circuit 13, the first separated carrier ... | 09/11/2001 |
| 5990978 | Luminance/chrominance signal separating device A luminance/chrominance (Y/C) signal separating device utilizing motion estimation and compensation. According to the device, the image motion is detected in the unit of a 2×2 (sample×line) block to separate an NTSC television signal into the Y and C si... | 11/23/1999 |
| 5929938 | Motion adaptive luminance and chrominance signal separating circuit A circuit for separating composite video signals into luminance and chrominance signals in response to motion of a displayed image. A motion detecting section detects motion of an image to be displayed on a television screen according to input composite v... | 07/27/1999 |
| 5786872 | Motion detection circuit calculates difference between input video signal and one frame-period signal An apparatus and method in which a difference between lines in an input composite video signal is calculated. The difference is compared with a specified threshold to detect chrominance correlation. A difference between lines in a composite video signal w... | 07/28/1998 |
| 5589888 | YC separation and still picture reproducing circuit Two field memories for supplying a composite video signal of a previous frame to a motion detector are provided in performing a three dimensional Y/C separation. An output of the field memory connected to an input terminal is connected to a two dimensiona... | 12/31/1996 |
| 5473389 | Y/C separator using 3-D, 2-D and 1-D filters A Y/C separating filter apparatus for outputting a carrier chrominance signal and a luminance signal from a color video signal supplied thereto comprises first and second three-dimensional filters for subtracting the color video signal and signals of one ... | 12/05/1995 |
| 5457501 | Spectrum distribution adaptive luminance/color signal separating device A quadrature modulated luminance/color signal separating device applied in a color television receiver. The most suitable luminance/color signal separation is performed by determining sizes of interference components in gross, fine, and superfine structur... | 10/10/1995 |
| 5333054 | Apparatus for reducing noise in a video signal by processing a luminance and chrominance component A video signal processing apparatus capable of improving a signal to noise ratio of a video signal by providing for a first luminance/chrominance separation circuit for still pictures and a second luminance/chrominance separation circuit for moving pictur... | 07/26/1994 |
| 5155582 | Dot crawling interference elimination device and color subcarrier vertical correlation detection device A dot crawling interference elimination device and a color subcarrier vertical correlation detection device, which comprise a color subcarrier vertical correlation detection device for a video signal, an adaptive three-dimensional Y/C separation unit, and... | 10/13/1992 |
| 5150202 | Separable diamond shaped multidimensional filters for composite video encoding/decoding applications Various 2D and 3D diamond shaped filters for encoding and decoding NTSC, PAL and ATV signals are presented. The particularity of the proposed system is its separability: the desired filter configurations are composed of multiple simple 1D filters operatin... | 09/22/1992 |
| 4953009 | Signal separator having function of subsampling digital composite video signal A signal separator includes an A/D converter which samples a composite color television signal including a luminance signal component and a color difference signal component at a sampling frequency four times a frequency of a chrominance subcarrier and ou... | 08/28/1990 |
| 4864389 | Comb filter method and apparatus for chrominance and luminance separation in quadrature modulated color subcarrier television systems An improved comb filter extracts at least one of chroma and luminance from a quadrature modulated subcarrier color television input signal. The described method implemented by the described apparatus includes the steps of delaying the input signal through... | 09/05/1989 |
| 4864402 | Video memory A video memory, for use with a video tape recorder, a television receiver of the like to process a picture, is simplified and can achieve the functions of a time base corrector, a noise reducer and a comb filter, so as to considerably improve the quality ... | 09/05/1989 |
| 4833526 | Three dimensional non-adaptive decoder for a PAL color television composite signal Apparatus for decoding a luminance signal from a PAL composite signal comprising a summing one line delay for deriving the sum of corresponding pixels on adjacent lines of a field, a subtracting one line delay for driving the difference between pixels res... | 05/23/1989 |
| 4695876 | Method and apparatus for the extraction of luminance information from a video signal using a field store A method and apparatus for the extraction of luminance information from an analog composite video signal. Non-luminance information in the video signal is 180° out of phase between adjacent lines in adjacent fields of a video signal. Appropriately filter... | 09/22/1987 |
| 4684977 | Luminance/chrominance separation circuitry A frame comb type composite video decoder which does not require motion adaptive processing circuitry generates low frequency luminance signal components from one field of composite video signal. The high frequency luminance component is derived from two ... | 08/04/1987 |
| 4636841 | Field comb for luminance separation of NTSC signals A field comb filter for separating luminance signal from NTSC composite video additively combines signals separated by 263 horizontal lines. Vertical detail is restored and motion compensation provided by subtractively combining signal separated by 262 ho... | 01/13/1987 |
| 4597007 | Circuitry for correcting frame combed luminance signal for motion induced distortion A frame comb filter system includes circuitry for reducing motion induced artifacts in reproduced images. Frame comb filtered chrominance signal is line comb filtered to extract motion induced luminance cross components therein. The luminance cross compon... | 06/24/1986 |
| 4498099 | Apparatus for frame-to-frame comb filtering composite TV signal A frame-to-frame comb filter for separating chrominance and luminance signals from composite video signals produces objectionable double images around the edges of moving objects. The double images are substantially removed by low pass filtering the combe... | 02/05/1985 |
