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| Number | Title | Issue Date |
| 8026980 | Method and system for improving video combing decisions A system and method for improving decisions for 2D combing of a video. A 2D-comb is applied to a baseband video signal, thus producing a chroma component of the signal, and an associated combing error. A narrowband filter is applied to the chroma component to produc... | 09/27/2011 |
| 7710502 | Method and apparatus for detecting chroma field motion in a video signal A method and apparatus for blending a video signal responsive to a chroma motion result is disclosed. The method and apparatus are configured to determine whether any chroma motion exists within the video signal and providing the chroma motion result, to provide a f... | 05/04/2010 |
| 7646436 | Fuzzy logic based adaptive Y/C separation system and method We describe and claim a fuzzy logic based adaptive Y/C separation system and method. The fuzzy logic based adaptive Y/C separation system includes an adaptive Y/C separator to use fuzzy logic to separate chrominance data in a video signal, and a panel to display the... | 01/12/2010 |
| 7420625 | Fuzzy logic based adaptive Y/C separation system and method We describe and claim a fuzzy logic based adaptive Y/C separation system and method. The fuzzy logic based adaptive Y/C separation system includes an adaptive Y/C separator to use fuzzy logic to separate chrominance data in a video signal, and a panel to display the... | 09/02/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7184008 | Liquid crystal displaying method A liquid crystal displaying method includes: multiplying, a difference value of luminance information and a difference value of color-difference information each by an emphasis coefficient α (α is a positive real number); adding the luminance information in which ... | 02/27/2007 |
| 7106286 | Liquid crystal displaying method A liquid crystal displaying method includes: multiplying, a difference value of luminance information and a difference value of color-difference information each by an emphasis coefficient α (α is a positive real number); adding the luminance information in which ... | 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 |
| 7084928 | Video signal processing device and method An oblique correlation detection section detects correlation in an oblique direction (oblique correlation) of a composite video signal. A line correlation chrominance separation section extracts a first chrominance signal from the composite video signal based on ver... | 08/01/2006 |
| 7046299 | Digital video synchronizer with both decoded digital and undecoded analog outputs A digital video synchronizer for providing parallel and coordinated synchronization paths for decoded and undecoded video. Processing is added for a parallel path in a synchronization memory that bypasses the comb filter and video decoder circuitry to allow a digiti... | 05/16/2006 |
| 6995804 | Method and apparatus for separating color and luminance signals An apparatus for separating color and luminance signals from a composite video signal in consideration of the existence and degree of a motion of the video image. The apparatus includes an output section, a first filter, a second filter, a third filter, a motion det... | 02/07/2006 |
| 6956620 | Apparatus for separating a luminance signal and a chrominance signal from an NTSC composite video signal An apparatus for separating luminance and chrominance signals from an NTSC composite video signal includes first through fourth delayers connected to a digital composite video signal in series for delaying input signals each by 1, a first filter for separating a fir... | 10/18/2005 |
| 6950149 | Comb filter and a video apparatus An adaptive comb filter small in circuit scale and simple in circuit constitution is provided. The frequency band component of chrominance signal is extracted from a composite color video signal by a bandpass filter. The extracted chrominance signal is delay by a de... | 09/27/2005 |
| 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 |
| 6940560 | Method and system for performing PAL luma two line vertical combing A method and system for performing combing for PAL luma data is disclosed. The combing is performed for a display having a plurality of lines. The display is capable of depicting a frame including a horizontal boundary having a top edge and a bottom edge. A top line... | 09/06/2005 |
| 6930677 | Method and system for performing PAL chroma two-line vertical combing A method and system for performing combing for PAL chroma data for a display having a plurality of lines is disclosed. The display is capable of depicting a frame including a horizontal boundary having a top edge and a bottom edge. The top line of the plurality of l... | 08/16/2005 |
| 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 |
| 6900848 | Crosstalk reduction in a video signal selector A video signal input selector is subject to cross coupling between selectable video signals. The input selector comprises a video amplifier coupled to amplify a video signal selected from said selectable video signals. A controllable switch has first and second elem... | 05/31/2005 |
| 6853385 | Video, audio and graphics decode, composite and display system A video, audio and graphics system uses multiple transport processors to receive in-band and out-of-band MPEG Transport streams, to perform PID and section filtering as well as DVB and DES decryption and to de-multiplex them. The system processes the PES into digita... | 02/08/2005 |
| 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 |
| 6570925 | Digital still camera and image data processor The invention relates to an image data expansion processor for digital still camera. Two blocks of 8-bit luminance data and one block of 8-bit color difference data are repeatedly output from a compressing/expanding unit in the above order and are supplie... | 05/27/2003 |
| 6473091 | Image processing apparatus and method An image processing apparatus and method which can reduce the size of circuits for -blending and dithering and realize high speed processing which perform in parallel processing for finding an amount of update of present image data to be drawn with... | 10/29/2002 |
| 6459457 | Adaptive color comb filter A color comb filter (46), video decoder (40) and method for separating chroma (U,V) and luma (Y) signals from a composite video signal (41). The comb filter (46) includes circuitry (48) for generating color filter selections for filtering a chroma video s... | 10/01/2002 |
| 6175389 | Comb filtered signal separation An adaptive signal separation system and method for quadrature amplitude modulated signals that is particularly well-suited for YC separation of a composite television signal. An adaptive approach for separating overlapping signals wherein the adaptive ap... | 01/16/2001 |
| 6137532 | Color image filtering apparatus and method for use in a digital camera A color filter device of a digital camera which comprises a luminance processor, a color processor, a control unit, and a color memory for storing color data. The color memory is controlled by the control unit so as to provide user-selected color data whe... | 10/24/2000 |
| 6078357 | Image mixing circuit An image mixing circuit usable in a video camera for mixing images with a continuous gradation characteristic in both the luminance signal and color signal is provided according to the present invention. A color separation circuit separates plural image s... | 06/20/2000 |
| 6073158 | System and method for processing multiple received signal sources A system and method for time slicing multiple received data streams utilizing multiple processors in such a manner as to ensure that all processors are running at full capability and are efficiently timesharing a global memory storage area. The received d... | 06/06/2000 |
| 6055024 | Adaptive method for Y-C separation in video signals An adaptive method and system for processing luma and chroma signals from lines of a video signal. The invention includes an adaptive comb filtering algorithm that determines whether to average lines of video data based on the signal content. If two lines... | 04/25/2000 |
| 5969771 | 2-line YC separation device A 2-line YC separation device comprising a delay circuit for delaying a composite input video signal for a horizontal scanning period; a first band-pass filter which receives the composite input video signal; a second band-pass filter which receives the o... | 10/19/1999 |
| 5870153 | Adaptive comb filter that cancels hugand cross-luminance errors A comb filter for use in a video decoder is described. The comb filter includes a line memory for storing as successive pairs of U and V samples of a decoded video signal corresponding to a previous horizontal line of video information and a line memory f... | 02/09/1999 |
| 5798948 | Method and apparatus for video filtering A method and apparatus for video filtering filters video frames by determining a set of frames to be used to generate a single filtered frame. This set of frames is then combined to generate a single combined image. In one embodiment, proportions of the l... | 08/25/1998 |
| 5731845 | Method and apparatus for correcting contour of color image signal A two-dimensional contour enhancement is performed along a plurality of lines on a two-dimensional frequency characteristic chart, the line intersecting with each other at middle points between successive color cross generating regions and not passing thr... | 03/24/1998 |
| 5663771 | Adaptive video comb filter with legalized output signals A video comb filter for PAL or NTSC TV standards separates luminance and chrominance signals from a composite video signal by adaptively selecting between at least two different filtering processes, depending on whether the chroma output of the processes ... | 09/02/1997 |
| 5654770 | Luminance and chrominance signal separator using correlation detection A device that separates a luminance signal and a chrominance signal from an input composite color television signal, suppressing cross color interference and keeping a good color transient characteristic, by selecting characteristics of the color bandpass... | 08/05/1997 |
