Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8049820 | Video processing circuits and methods using same buffer for video decoder and cross color suppressor A video processing circuit capable of processing a composite signal and a non-composite signal, includes: a line buffer; a frame buffer; a video decoder for decoding the composite signal by utilizing the line buffer and the frame buffer as temporary buffers of the v... | 11/01/2011 |
| 7535515 | Motion detection in video signals Methods and apparatus, including computer program products, implementing and using techniques for distinguishing false motion from true motion, in a video signal that is received by a television set. The video signal is received at the television set. The video sign... | 05/19/2009 |
| 7443454 | Method for treating inter-frame motion in a composite video signal A method for treating inter-frame motion in a series of consecutive signal frames of a composite video signal includes the steps of, for an evaluation pixel position in each frame of a test frame-set including three successive signal frames: (a) determining whether ... | 10/28/2008 |
| 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 |
| 7408992 | Detection and repair of MPEG-2 chroma upconversion artifacts A method for removing MPEG-2 chroma upconversion artifacts in a video stream includes detecting a presence of artifacts in an incorrectly upsampled MPEG-2 video stream and removing the presence of artifacts resulting in an artifact free video stream. ... | 08/05/2008 |
| 7366238 | Noise filter for video processing A noise filter for a video processing system includes a block selector, a cost calculator, a cost table, a cost comparator, and a coefficient filter. The block selector is coupled to receive data from the quantization unit and selects blocks for additional filtering... | 04/29/2008 |
| 7349033 | Systems and methods for correcting color phase error in video systems Systems and methods are provided for correcting color phase error in a video decoder system. A demodulator system demodulates the composite input signal and the at least one delayed signal to produce sets of baseband chroma components based on a phase correction val... | 03/25/2008 |
| 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 |
| 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 |
| 7305126 | Photo dazzle color temperature correction A method for calculating and adjusting the color temperature of an image includes calculating an average color temperature and adjusting the chromaticity of each pixel of the image according to the average color temperature. The adjustment may be linear across all p... | 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 |
| 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 |
| 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 |
| 7227585 | Luminance and chrominance separation system 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... | 06/05/2007 |
| 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 |
| 7088399 | Signal processing apparatus signal processing method program and recording medium for detecting a position in a pattern corresponding to noise A dot detection section of a dot-interference detection section detects a portion where pixels are arranged as “dark-bright-dark” or “bright-dark-bright” in the horizontal direction, within a Y signal containing dot interference, separated by a YC separation... | 08/08/2006 |
| 7076113 | Apparatus and method for adaptive spatial segmentation-based noise reducing for encoded image signal An efficient and non-iterative post processing method and system is proposed for mosquito noise reduction in DCT block-based decoded images. The post-processing is based on a simple classification that segments a picture in multiple regions such as Edge, Near Edge, ... | 07/11/2006 |
| 7046306 | Processing a video signal using motion estimation to separate luminance information from chrominance information in the video signal In one embodiment, a method for processing a video signal includes: (1) receiving and storing luminance and chrominance information for each pixel in a first portion of the signal; (2) receiving luminance and chrominance information for each pixel in a second portio... | 05/16/2006 |
| 7012651 | Video signal processing method and apparatus A video signal processing method and apparatus eliminates dot crawls and cross color interferences from a component video signal that has been subjected to Y/C separation. Components at a horizontal frequency of 3.58 MHz and a temporal frequency of 15 Hz are extract... | 03/14/2006 |
| 6967692 | Apparatus for processing luminance signal A luminance signal processing apparatus that detects an average luminance level, adaptively to various video signal formats. This luminance signal processing apparatus includes a window pulse generation unit 101 for generating a window pulse signal S110 | 11/22/2005 |
| 6961094 | Image-signal processing apparatus and method An image signal output from a first delay circuit is taken out from an image interpolation filter and from a second delay circuit corresponding to an image-quality adjustment filter, and an image signal selected by a first selector is output through a second selecto... | 11/01/2005 |
| 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 |
| 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 |
| 6888578 | Method and system for cross-luminance reduction in multi-standard television decoders A method and system for correcting luma data and chroma data from a composite signal for a plurality of lines are disclosed. The method and system include correlating line data of the composite signal from a portion of the plurality of lines to provide a plurality o... | 05/03/2005 |
| 6832007 | Method and system for compensating for scaling artifacts in mixed raster content (MRC) representations An image processing method and system compensates for artifacts in scaling operations of mixed raster content data representations. In such data representations, a document is segmented into data portions generally segregated by data types. At least one of the segme... | 12/14/2004 |
| 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 |
| 6774954 | Apparatus and method for adaptive three dimensional television Y/C separation comb filter bank An apparatus and method for a three-dimensional luminance/chrominance (Y/C) seperation comb filter bank. The method and system consider the effect of motions in the temporal domain as the effect of edges in the spatial domain. The method and system apply a temporal ... | 08/10/2004 |
| 6774937 | Image processing system and camera system In the case where an output signal of an image pickup device is compressed and is transmitted through a transmission path with band limitation, when a conventional compression and expansion technique is directly applied, there is a lot of waste and a circuit scale b... | 08/10/2004 |
| 6717623 | Color separator circuit and chrominance signal processing device provided therewith In a color separator circuit, edge detection filters detect an edge encountered in the horizontal direction. When the image signals corresponding to the thus detected edge are processed, selector circuits 12a to 12c select outputs from sm... | 04/06/2004 |
| 6496227 | System with chrominance delay lines A system with chrominance delay lines has a first sampled channel including at least one smoothing filter, and has a second unsampled channel. A continuous bypass filter is placed in the second channel to balance the pulse response from these two channels... | 12/17/2002 |
| 6469745 | Image signal processor for detecting duplicate fields An image signal processor is provided which accurately detects duplicate fields of a telecinema signal. The image signal processor includes a duplicate field detecting means for detecting duplicate fields of the telecinema signal and a duplicate field rem... | 10/22/2002 |
| 6424384 | Method and apparatus for improved signal filtering A method and apparatus for separating a signal uses a low pass filtering in a first direction to produce a signal with a low component and a alias component and then uses a filtering in a second direction to produce a component of a separated signal. The ... | 07/23/2002 |
| 6411713 | Method of adaptive control of the presence of a copy protection signal A method and apparatus for adaptively controlling the presence of copy protection signals in a video signal depends upon the scene content of the video signal during an upper portion of a display of the video signal. Thus, in the upper portion of the scen... | 06/25/2002 |
| 6392714 | Color television signal processing A color television decoder or other signal processor has a gate controlling the passage of a notch filtered chrominance signal. A filter circuit produces a further chrominance signal which serves as the control signal for the gate.... | 05/21/2002 |
| 6384873 | Vector magnitude control of a comb filter Adaptive comb filter circuitry is responsive to chrominance vector absolute values to inhibit hanging dots. Chrominance vector absolute values are calculated by delaying bandpass filtered video signal to concurrently provide a plurality of sample absolute... | 05/07/2002 |
