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| Number | Title | Issue Date |
| 8189112 | Luminance signal/carriage color signal separating circuit and method An embodiment has a C separating circuit which separates a carriage color signal and which outputs a reference, a lead, and a delayed composite video signals, a filter that extracts a high-frequency carriage color component with a significant variation in hue from t... | 05/29/2012 |
| 8179479 | Method for separating luminance and chrominance of composite TV analog signal A method for separating luminance and chrominance of a composite TV analog signal includes the steps of: measuring first differences between horizontal neighbor pixels, second differences between vertical neighbor pixels and third differences between temporal neighb... | 05/15/2012 |
| 8102472 | Image processing apparatus and method for Y/C separation An image processing apparatus includes: a cross-color detecting module for detecting whether at least one pixel carried by a composite signal has cross-color effect; and an image processing module, coupled to the cross-color detecting module, for performing a first ... | 01/24/2012 |
| 8072547 | Comb filter that utilizes host memory A comb filter system that utilizes host memory is disclosed. The comb filter system that utilizes host memory may include a comb filter. The comb filter system that utilizes host memory may include an allocated host memory. The comb filter system that utilizes host ... | 12/06/2011 |
| 7742110 | Comb filter system and method I describe and claim a temporal comb filtering system and method. The temporal comb filter system includes a comb filter to temporally process separated luminance and chrominance components from an image field responsive to image data from at least one other image f... | 06/22/2010 |
| 7728910 | 2D YC separation device and YC separation system The invention relates to a 2D YC separation device and YC separation system for separating a composite signal into a luma signal (Y) and a chroma signal (C). Firstly, the 2D YC separation device utilizes a low-pass filter to separate the composite signal into a low-... | 06/01/2010 |
| 7688387 | 2-D combing in a video decoder Separation of luma and chroma in a video. In an embodiment, values on a current line of the sampled video signal, at ¼-period intervals, are compared with values on a previous line of the sampled video signal, at ¼-period intervals. Values on the current line of t... | 03/30/2010 |
| 7474357 | Decoding video signals to separate luma and chroma components Provided are decoding methods and decoders for separating luminance and chrominance components of a video signal. In one aspect, a reference subcarrier of a first line of the video signal is used for subsequent lines by applying an appropriate rotation to the refere... | 01/06/2009 |
| 7439986 | Pixel filtering using shared filter resource between overlay and texture mapping engines A configurable filter module for providing shared filter resource between an overlay engine and a texture mapping engine of a graphics system. The configurable filter may comprise a plurality of linear blend units each of which receives data input from one of the ov... | 10/21/2008 |
| 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 |
| 7420624 | Three-dimensional video composite signal demodulating method and system capable of inhibiting pseudo-color noises A three-dimensional video composite signal demodulating method and system capable of inhibiting pseudo-color noises. The system has a two-dimensional luminance and chroma signal separator, a three-dimensional luminance and chroma signal separator, a luminance weight... | 09/02/2008 |
| 7394502 | Method and system for 2D comb filtering of a PAL video signal Methods and systems for 2D comb filtering of a PAL video signal are provided. The method may comprise generating a plurality of interpolated pixels for corresponding video samples in non-adjacent pixel lines for a video frame. At least one direction of least bandwid... | 07/01/2008 |
| 7391478 | Method and system for 3D comb filtering of a video signal Methods and systems for 3D comb filtering of a video signal are provided. Aspects of the method may include generating a plurality of interpolated pixels for corresponding video samples for a first video frame, determining at least one direction of least bandwidth a... | 06/24/2008 |
| 7391479 | Method and system for 3D bidirectional comb filtering Methods and systems for 3D bidirectional comb filtering of a video signal are provided. Aspects of the method may include generating a plurality of interpolated pixels for a current line, a next line and a previous line in a current frame. A plurality of interpolate... | 06/24/2008 |
| 7355653 | Video signal processing circuit and video signal processing method When an A/D-converted composite video signal is directly outputted while a system clock frequency is switched so as to execute the determination of a signal system, a digital chroma demodulation system prevents the images displayed by the composite video signals fro... | 04/08/2008 |
| 7355652 | Inverse tracking over two different clock domains A video decoder in which the video source clock is generated entirely in the digital domain is disclosed herein. By creating a virtual version of the source clock in a numeric oscillator, the amount of noise in the system is substantially reduced. Furthermore, by tr... | 04/08/2008 |
| 7339629 | Method and system for time constant for a 3D comb filter Methods and systems for time constant for a 3D comb filter of a video signal are provided. Aspects of the method may include assigning a weight to a 3D comb mesh value. Combing may be blended according to the assigned weight of the 3D comb mesh value. The weighted 3... | 03/04/2008 |
| 7339628 | Method and apparatus to improve decoding of composite video signals Video decoder systems in which both the analog-to-digital converter and the composite decoder are driven by the stable sample clock, such as a crystal source. The outputs of the composite decoder are provided to a source rate converter, having an output that is prov... | 03/04/2008 |
| 7327405 | Systems and methods for improved video comb filtering with dynamic chroma bandwidth control The invention provides improved video comb filtering. One aspect of the invention considers detected motion of an object between a reference signal and a comparison signal in determining whether to comb and if combing is indicate, what portion of each of the signals... | 02/05/2008 |
| 7310119 | Adaptive circuit for Y-C separation An adaptive circuit and method for separating luminance and chrominance components from a composite video signal by deriving three input lines from the composite video signal, determining whether any luminance similarity exists among the three input lines, and then ... | 12/18/2007 |
| 7304688 | Adaptive Y/C separator The present invention provides an apparatus and method for an adaptive Y/C separator that selects between input filters responsive to features of video signals. The adaptive Y/C separator can monitor the results of numerous filters and choose a combination of separa... | 12/04/2007 |
| 7280159 | Method and apparatus for cross color and/or cross luminance suppression A method and apparatus for cross color and/or cross luminance suppression. The apparatus checks for three conditions in determining the stillness of an image. Similarity between two frames, which are one frame apart, is examined. Similarity between two adjacent fram... | 10/09/2007 |
| 7277134 | Chrominance signal demodulation apparatus An NTSC system chrominance signal demodulation apparatus is provided with a clock timing change circuit for burst-locking an input signal under the state where the phase is shifted by 90 degrees for every line, and phase axis rotation circuits for performing phase a... | 10/02/2007 |
| 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 |
| 7271850 | Method and apparatus for cross color/cross luminance suppression According to embodiments of the present invention, a method for processing an image in a video data is disclosed. The video data comprises at least a first frame and a second frame. The first frame is composed of a first even field and a first odd field, while the s... | 09/18/2007 |
| 7250984 | VDT stress mitigating device and method, VDT stress risk quantifying device and method, and recording medium The aim of the present invention is to provide a VDT stress mitigating device and method capable of mitigating VDT stress caused by a regular spatial pattern and VDT stress caused by flicker generated by an interlaced format, a VDT stress risk quantifying device and... | 07/31/2007 |
| 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 |
| 7227587 | System and method for three dimensional comb filtering A system and method for determining whether to process a signal using three-dimensional comb filtering. Various aspects of the present invention may comprise method steps and system components that generate an inter-frame chroma signal. Various aspects may generate ... | 06/05/2007 |
| 7224407 | Color demodulation device, color demodulation method and image display device A color demodualation device having an AD converter, a phase signal generator, a burst data generator and a multiplier. The AD converter produces digital samples of chrominance signal at a frequency four times a color subcarrier frequency, and the phase signal gener... | 05/29/2007 |
| 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 |
| 7190718 | Method and apparatus for determining a receiver sampling phase for use in diagnosing a channel An apparatus for processing a received signal includes an analog-to-digital converter (ADC) configured to produce a sampled signal from a received signal using a candidate sampling phase. An adaptive filter includes adaptive filter coefficients and is configured to ... | 03/13/2007 |
| 7176984 | Video signal separating method and related apparatus A method and/or apparatus for separating a video signal into a luminance signal and a chrominance signal is disclosed. The method first generates a target video signal and a plurality of reference video signals by delaying the video signal, then generates a pluralit... | 02/13/2007 |
| 7167213 | Comb filter design for separating luminance and chrominance in video signals Provided are decoding methods and decoders for calculating comb filter error and performing comb filter calculation used for decoding video signals. In one aspect, a method of calculating comb filter error used for decoding a video signal comprises storing a plurali... | 01/23/2007 |
| 7161636 | Vertical sharpness adjustment device and TV receiver therewith A vertical sharpness adjustment device with which a viewer of a TV receiver can choose a degree of vertical sharpness adjustment to enhance a contour of a picture in vertical direction is offered. The vertical sharpness adjustment device includes a terminal to which... | 01/09/2007 |
| 7151574 | Optimized structure for digital separation of composite video signals A device and method are provided for implementing digital baseband separation of composite video signals with reduced memory requirements. The method and device require that only the composite signal be stored in a large delay element. Multiple quadrature demodulato... | 12/19/2006 |
| 7123560 | Apparatus for enabling PLL to lock on to a correct frequency and phase during the reproduction of a continuous-wave-corresponding signal and repetition of a specific pattern In a PLL circuit, a phase error of a reproduced signal is extracted in either a way based on a zero-cross timing or a way based on a self-running timing. A decision is made as to whether the reproduced signal is in a continuous-wave interval where an inversion perio... | 10/17/2006 |
| 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 |
| 7110045 | Y/C separator and Y/C separating method A Y/C separator improving characteristics of dot crawl elimination and cross-color interference elimination even at a sampling frequency unequal to an integer multiple of a color subcarrier frequency of an NTSC television signal. A received composite color televisio... | 09/19/2006 |
| 7106385 | Apparatus and method for reducing the visual effects of artifacts present in a line scanned video display On a line scanned video display, the frequency of an artifact producing signal within the video passband is selected to be an odd harmonic of one half the horizontal line scan frequency so that adjacent scan lines of the artifact are 180 degrees out of phase with ea... | 09/12/2006 |
| 7092038 | Adaptive Y/C separation circuit The present invention provides an adaptive Y/C separation circuit for video signal processing that is capable of correcting previous color discrepancy in separating the luminance (Y) and chrominance (C) signals from the color video signals. In the process, the corre... | 08/15/2006 |
