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| Number | Title | Issue Date |
| 8094237 | Signal separation apparatus applied in image transmission system and related method A signal separation apparatus applied in an image transmission system for extracting a chrominance signal from an analog composite video signal and a related method are disclosed. The signal separation apparatus includes an analog-to-digital converter for generating... | 01/10/2012 |
| 7872689 | System and method for improved composite decoding A method of composite decoding in which the input signal is converted into the frequency domain, and the symmetry of frequency components with respect to the subcarrier frequency is compared. The comparison is varied in dependence upon the frequency being processed.... | 01/18/2011 |
| 7773157 | Digital video signal processing apparatus and method for adaptive Y/C separation An adaptive digital video signal processing apparatus and method for Y/C separation. In the video signal processing apparatus, an adaptive 2D BPF carries out Y/C separation through comb filtering and bandpass filtering selected according to local characteristics of ... | 08/10/2010 |
| 7679685 | System and method for processing video signals The disclosed embodiments relate to a system (100) that processes an analog video signal (502), the analog video signal (502) comprising luminance information (408), first chrominance information (410), and second chrominance infor... | 03/16/2010 |
| 7663702 | Digital video signal processing apparatus and method for adaptive temporal and spatial Y/C separation in multiple directions A digital video signal processing apparatus and method for adaptive spatio-temporal Y/C separation in multiple directions. In the digital video signal processing apparatus, an adaptive three-dimensional band pass filter (3D BPF) performs Y/C separation using local c... | 02/16/2010 |
| 7659944 | Digital video signal processing apparatus and method for field-based adaptive spatio-temporal Y/C separation A digital video signal processing apparatus and method for field-based adaptive Y/C separation includes an adaptive 3D BPF performing Y/C separation according to local comb filtering/1D band pass filtering when the edge direction is fixed vertically/horizontally in ... | 02/09/2010 |
| 7605870 | Digital video signal processing apparatus and method for frame-based adaptive temporal and spatial Y/C separation A digital video signal processing apparatus and method for frame-based adaptive spatio-temporal Y/C separation. In the digital video signal processing apparatus, an adaptive three-dimensional bandpass filter (3D BPF) performs Y/C separation using local comb filterin... | 10/20/2009 |
| 7551233 | Image processing circuit having capability of reducing distorted/falsified phenomena of color component of decoded video data, and image processing method thereof An image processing circuit for processing a video signal includes: a separator for separating the video signal into a brightness signal and a color signal; a first filter coupled to the separator for filtering the color signal; and a second filter coupled to the se... | 06/23/2009 |
| 7545442 | Y/C separation with 3D comb filter The present invention uses a 2D comb filter 20 to output a 2D chrominance signal C2d by comparing the current scan-line signals with the signals before and after the current scan-line signals. A 3D chrominance signal C3d is then ac... | 06/09/2009 |
| 7538823 | Luminance/chrominance video data separation circuits and methods and video systems utilizing the same A method of separating a chroma data component from a video data stream includes determining a phase relationship between a color burst in digital video data samples of a composite video signal and a local clock signal which processes the digital video data samples.... | 05/26/2009 |
| 7515211 | Video signal processing circuit, video signal display apparatus, and video signal recording apparatus A video signal processing circuit that uses a prescribed clock signal to process a digitized composite video signal. A clock generating means (2) generates the prescribed clock signal; a burst phase detecting means (3) detects color subcarrier phase in... | 04/07/2009 |
| 7492415 | Method and system for data compression for storage of 3D comb filter data Methods and systems for data compression for storage of 3D comb filter data are disclosed. An incoming video signal may be band-limited during combing, where the incoming video signal may comprise a plurality of active and inactive video samples disposed within a pl... | 02/17/2009 |
| 7489364 | Y/C separation circuit and Y/C separation method A Y/C separation circuit according to the present invention includes: a pattern determination section in which video signals “a”, “b”, and “c” of three lines from which a frequency band of a chrominance subcarrier is extracted through BPFs to determine w... | 02/10/2009 |
| 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 |
| 7430020 | Separation of composite video signals using dot crawl detector The present invention relates to separation of composite video signals, such as NTSC or PAL signals. In particular, it relates to accurate decoding of chrominance and luminance components, which may reduce so-called dot crawl and false color artifacts of at least so... | 09/30/2008 |
| 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 |
| 7418625 | Deadlock detection and recovery logic for flow control based data path design Certain embodiments of the invention may be found in a method and system for handling deadlock conditions in a data processing system. Aspects of the method may comprise identifying a potential deadlock state in a distribute and merge data processing system. An actu... | 08/26/2008 |
| 7355655 | Systems and methods for separating luma and chroma information in a composite video signal Systems and method are provided for luma-chroma separation. A demodulator system demodulates a composite video signal to produce at least two baseband chroma signals. A given baseband chroma signal contains chroma information for one of a plurality of video frames c... | 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 |
| 7339630 | Method and system for a correlation sharpening filter Methods and systems for correlation sharpening filtering of a composite video signal are provided. A correlation between a current pixel and at least one adjacent pixel may be determined. A plurality of chroma video signal components of a composite video signal may ... | 03/04/2008 |
| 7336321 | Video signal processor A simplified Y/C separation circuit separates a composite video signal into a first luminance signal and a first color signal without subjecting the composite video signal to three-dimensional processing. A color demodulation circuit color-demodulates the first colo... | 02/26/2008 |
| 7336314 | Image acquiring method and image acquiring apparatus The image acquiring method and image acquiring apparatus photograph an image of a subject using stroboscopic light as external illumination. The method and apparatus compare, in terms of color change, an image acquired without using the stroboscopic light and images... | 02/26/2008 |
| 7336390 | Method and apparatus for reducing multi-bit image data Input pixels are input to a thinning processing circuit. When thinning is performed at the thinning processing circuit, minimum values are selected in order to reduce the pixel data, whereby loss of thin lines is prevented. The thinned image data are input to a bina... | 02/26/2008 |
| 7330219 | YC separator circuit A YC separator circuit which is capable of achieving YC separation at a high accuracy. The YC separator circuit comprises line memories, bandpass filters, an edge detector circuit, a color correlation determining circuit, and a YC separation filter circuit. The YC s... | 02/12/2008 |
| 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 |
| 7324163 | Sub-carrier detection (SCD) for motion threshold logic An apparatus comprising a video decoder configured to receive a composite video signal modulated on a sub-carrier signal and having a luma component and a chroma component, the video decoder configured to perform a motion detection operation on the luma component an... | 01/29/2008 |
| 7319755 | Image altering apparatus and method for providing confidential viewing of a fundamental display image An image altering apparatus which provides confidential viewing of a video display by means of time multiplexing the fundamental display image with a color-inverted image thereof on a pixel-by-pixel basis. Electronic circuitry and/or software are utilized to modify ... | 01/15/2008 |
| 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 |
| 7305141 | Contour filter for image sensor output signals The present invention relates to digital image sensors and in particular to an aliasing free contour filter for RGB Bayer sensors. The filter (ZSB, 7) prevents an amplification of back folded aliasing artefacts and further eliminates green-green differences c... | 12/04/2007 |
| 7298418 | Method and system for processing in a non-line locked system Certain embodiments of the invention disclose a method and system for processing in a non-line locked system. The phase relationship between the sub-carrier signal on consecutive video lines in a video comb filter is determined by synchronizing the two video lines. ... | 11/20/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 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 |
| 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 |
| 7268821 | Upconversion with noise constrained diagonal enhancement A method of interpolating a given output pixel value when upconverting interlaced video to progressive video includes the step of determining averages for vertically adjacent pixels, left diagonally adjacent pixels, and right diagonally adjacent pixels respectively ... | 09/11/2007 |
| 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 |
| 7224406 | Digital signal processing system and method applied for chroma transition A digital signal processing system and method applied for chroma transition, wherein the method has the acts of: performing a difference process on an original chroma signal C to obtain a first difference signal C′; calculating an absolute value |C′| of the firs... | 05/29/2007 |
| 7215822 | Image processing device and image outputting device The invention naturally enhances the sharpness of an image by performing appropriate sharpness processing. An image processing device receives input original image data, performs sharpness processing, and outputs correction image data. Specifically, the degree of th... | 05/08/2007 |
| 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 |
