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...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8139156 | Method and apparatus for adaptive selection of YC separation A method for adaptive selection of YC separation is provided. While a video decoder is re-sampling, a frequency of a re-sampling signal and a pixel rate of an output signal have a fixed relation, which is used to determine if a sampling frequency of the signal is de... | 03/20/2012 |
| 7595842 | 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 ... | 09/29/2009 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7323955 | Narrow-band absorptive bandstop filter with multiple signal paths An absorptive bandstop filter includes at least two frequency-dependent networks, one of which constitutes a bandpass filter, that form at least two forward signal paths between an input port and an output port and whose transmission magnitude and phase characterist... | 01/29/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6999130 | Luminance signal/chrominance signal separation device, and luminance signal/chrominance signal separation method A luminance signal/chrominance signal separation apparatus is provided with a detector for detecting diagonal components of a luminance signal from a composite video signal, wide-band pass filters, and narrow-band pass filters, wherein band pass filters to be connec... | 02/14/2006 |
| 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 |
| 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 |
| 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 |
| 6833875 | Multi-standard video decoder A video decoder for decoding a composite video signal. The decoder includes an analog-to-digital converter (ADC), an input resampler, and a Y/C separator, all coupled in series. The ADC receives and digitizes the composite video signal to generate ADC samples. The i... | 12/21/2004 |
| 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 |
| 6771321 | 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... | 08/03/2004 |
| 6765624 | Simulated burst gate signal and video synchronization key for use in video decoding A simulated burst gate signal and a video synchronization key are generated. A video decoder generates a horizontal sync pulse which is programmed to envelop a color burst, thereby simulating a burst gate signal. The offset to the horizontal sync pulse due to simula... | 07/20/2004 |
| 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 |
| 6606423 | Image format converting method and apparatus An image format converting method and apparatus are provided. The image format converter includes a pre-filter for pre-filtering the input image and for outputting a pre-filtered signal, and a format converter for bi-linear interpolating the pre-filtered ... | 08/12/2003 |
| 6504579 | Adaptive filter for processing video signals An adaptive filter is disclosed comprising a source (1) for a television signal (f), a delay device (2) for forming delay signals (v0 to v5) from the television signal, a filter combination (3) comprising at least one comb-up device and one comb-down devi... | 01/07/2003 |
| 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 |
| 6333764 | Video signal luminance and chrominance separation A video signal decoder including a comb filter characterised by means for changing the operating mode of the filter progressively. Also, a video signal decoder including a comb filter characterised by means for adjusting continuously the degree of filteri... | 12/25/2001 |
| 6243144 | Adaptive false color video filter and method An adaptive video filter and method utilizes a first filter coupled to receive a composite video signal and generate a filter luminance output signal. An amplitude detector receives the filtered luminance output signal and generates an amplitude level to ... | 06/05/2001 |
| 6052157 | System and method for separating chrominance and luminance components of a color television system A method and system for separating chrominance and luminance information from a composite spectral signal is disclosed. The method and system comprises demodulating the composite signal prior to separation of the chrominance or luminance information to pr... | 04/18/2000 |
| 5973753 | Method and circuit arrangement for separating luminance and chrominance signals of a CVBS signal In analog color television transmission methods, the transmitted CVBS signal comprises luminance and chrominance signals which have to be separated from one another in a television receiver in order to permit separate further processing. Comb filters can ... | 10/26/1999 |
| 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 |
