Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7667779 | Image-displaying device and pixel control method therefor An image-displaying device and a pixel control method therefore are provided. The image-displaying device includes a luminance information extraction unit which is configured to extract luminance information from an image; an image enhancement decision unit which is... | 02/23/2010 |
| 7289681 | Method of sharpening image using luminance channel A method for sharpening an image, the method including the steps of: (a) receiving a data set including at least one colour plane indicative of the image; and (b) extracting an initial luminance channel from the data set, the initial luminance channel being in a col... | 10/30/2007 |
| 7283179 | Liquid crystal television apparatus Disclosed herein is a video signal process circuit that includes a control circuit having a level detection circuit and a dynamic range switch circuit. In the control circuit and a microcomputer, an average luminance of an image displayed on a liquid crystal panel v... | 10/16/2007 |
| 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 |
| 7187807 | Apparatus for sharpening an image using a luminance channel An apparatus for sharpening an image, the apparatus including a processor adapted to receive a data set including at least one color plane indicative of the image; and the processor extracting an initial luminance channel from the data set, the initial luminance cha... | 03/06/2007 |
| 7176983 | Adaptive coring for video peaking A processor for enhancing an input luminance signal including: a circuit for calculating a chroma edge value associated with the input luminance signal; a circuit for measuring a luminance gradient associated with the input luminance signal; a peaking filter for pro... | 02/13/2007 |
| 7151576 | Method and apparatus for modulating video signals A luminance component of a video signal is modulated in a first frequency band. A first chrominance component of the video signal is modulated in a second frequency band and is mixed with an audio component. A second chrominance component of the video signal is modu... | 12/19/2006 |
| 7145605 | Synchronization of chroma and luma using handshaking An apparatus for synchronizing chroma and luma data includes a first handshake block for luma data, a second handshake block for chroma data, and a means for providing a handshake signal to the first block and to the second block based at least in part on a determin... | 12/05/2006 |
| 7136112 | Method and apparatus for modulating video signals A luminance component of a video signal is modulated in a first frequency band. A first chrominance component of the video signal is modulated in a second frequency band and is mixed with an audio component. A second chrominance component of the video signal is modu... | 11/14/2006 |
| 7113227 | Gradation correcting apparatus gradation correcting method and video display apparatus The present invention has an object to provide a gradation correcting apparatus for correcting the gradation of the white side of a video luminance signal. The gradation correcting apparatus is provided with a maximum value detector 101 for detecting a... | 09/26/2006 |
| 7095438 | Image signal processing device for minimizing false signals at color boundaries An image signal processing device of the present invention includes an RGB-YC conversion for converting color component signals output from a CCD (Charge Coupled Device) image sensor to luminance signals and components thereof lying in a high frequency range. The lu... | 08/22/2006 |
| 7095451 | Image processing system, projector, information storage medium and black and white extension processing method To provide an image processing system, projector, information storage medium and black and white extension processing method which can improve the quality of image when at least one of white extension and black extension is performed to video signals, a extension de... | 08/22/2006 |
| 7075054 | Optical position detecting device and recording medium including a detection of dust on a light retro-reflector The position of a light blocking object is detected not only within a display screen, but also outside the display screen. With the use of the function of detecting the position in a region outside the display screen, it becomes possible to provide virtual buttons i... | 07/11/2006 |
| 7034896 | Gradation correction apparatus The present invention provides a gradation correction device which can perform gradation correction using digital feedback processing, and furthermore, can control the digital feedback processing with high accuracy. The gradation correction device is provided with a... | 04/25/2006 |
| 6975337 | Projection type image display device A projection type image display device includes a plurality of image display elements that perform modulation of light rays in accordance with an image signal, a color synthesizing optical element for synthesizing light rays having mutually different wavelength rang... | 12/13/2005 |
| 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 |
| 6956622 | Method and apparatus for modulating video signals A luminance component of a video signal is modulated in a first frequency band. A chrominance component of the video signal is modulated in a second frequency band. The modulated luminance component and the modulated chrominance component are then transmitted across... | 10/18/2005 |
| 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 |
| 6937294 | Multiplexed video signal interface signal, system and method A multiplexed video signal interface in accordance with the present invention provides a multiplexed component video signal which includes component video signals with OSD data and user-controllable contrast and video gain, along with the ability to individually con... | 08/30/2005 |
| 6927386 | Optical position detecting device and recording medium including an operational defect judgment The position of a light blocking object is detected not only within a display screen, but also outside the display screen. With the use of the function of detecting the position in a region outside the display screen, it becomes possible to provide virtual buttons i... | 08/09/2005 |
| 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 |
| 6816193 | Image processing apparatus An image processing apparatus includes: an image pickup section for converting an object light into image signals of Bayer RGB array; a color information detecting section for obtaining color information of the object from the image signals obtained by the image pic... | 11/09/2004 |
| 6807315 | Method and apparatus for sharpening an image A method and apparatus for sharpening an image. An initial luminance channel is extracted from a data set that includes at least one color plane indicative of the image. The initial luminance channel is in a color space different to that of the at least one color pl... | 10/19/2004 |
| 6603452 | Color shading correction device and luminance shading correction device A correction circuit 50 is provided to correct the luminance shading caused by uneven thickness of the liquid crystal layer in the LCD panel. The correction circuit 50 generates a correction signal obtained by modulating the gradually changing signal with... | 08/05/2003 |
| 6495978 | CRT display device and cutoff adjustment method A cutoff adjustment method of a CRT using a Hi-Gm tube is proposed as well as a problem that luminance of a display screen is changed by a fluctuation of a Gm voltage to be applied to a Gm electrode in relation to fluctuations of currents flowing into the... | 12/17/2002 |
| 6483550 | Video signal level converting device and video signal analog-to-digital converter An analog-to-digital converter for converting an analog television signal to a signal in compliance with a digital encoding standard is provided. The analog-to-digital converter according to the invention comprises an A-D converter circuit for converting ... | 11/19/2002 |
| 6480241 | S-video signal loss compensation processing apparatus and method In an S-video signal processor, the luminance signal is amplified and adjusted over selected frequency ranges using a parallel signal for shaping the S-video signal response and permitting the S-video signal to be transmitted over exceptionally long trans... | 11/12/2002 |
| 6433838 | Video signal processing method for improving the picture of dim area A method of video signal processing that reduces computational and circuit costs. The method of processing a video signal of the present invention comprises the following steps: First, receiving a video input signal including an input luminance signal and... | 08/13/2002 |
| 6420076 | Method and apparatus of inspecting foreign substance on substrate surface This invention comprises an inspection method conducted by rotary-coating a photoresist on the surface of a semiconductor substrate, irradiating ultraviolet rays using an exposure instrument such as a stepper, exposing the entire photoresist, removing the... | 07/16/2002 |
| 6400412 | Video signal processing apparatus with time adjustment of digital chrominance signal A video signal processing apparatus having first and second analog/digital converters for converting imputted analog luminance and chrominance component signals into digital luminance and chrominance component signal. Frequency band limiting filters, disp... | 06/04/2002 |
| 6377313 | Sharpness enhancement circuit for video signals Techniques for enhancing edges in video signals while reducing the amounts of undershoots and overshoots. A video signal is processed to generate a first signal indicative of detected edges in the video signal. The first signal can be generated by lowpass... | 04/23/2002 |
| 6313883 | Method and apparatus for finite local enhancement of a video display reproduction of images A method and apparatus for electronically processing video signals representing images of an object or scene so that details of some portion or all of the object or scene are enhanced in the video display reproduction of the images. Video image signals fr... | 11/06/2001 |
| 6288756 | Luminance correction circuit and video display monitor thereof A luminance correction circuit to correct areas of unevenness in luminance or color of a video image and smoothes gaps between correction blocks. The luminance correction circuit comprises a memory for storing correction data for correcting unevenness in ... | 09/11/2001 |
| 6288755 | Video signal processing apparatus A video signal processing apparatus is provided that includes a gate pulse generator and a luminance signal processing unit. The gate pulse generator detects a high frequency band in accordance with a luminance signal separated from a composite video sign... | 09/11/2001 |
| 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 |
| 6201583 | Image signal input apparatus In an image signal input apparatus that performs high-speed input processing of an image signal and, in particular, a brightness signal, a video signal is processed by a clamping circuit so as to achieve a constant reference level, and then input to an A/... | 03/13/2001 |
| 6188444 | Apparatus and methods for synthesizing foreground and background images An apparatus and method for improving the clarity of a picture produced from a video signal. A differentiation circuit is provided that produces a responsive correction signal. Mechanisms for adjusting the shape (width, amplitude, etc.) of the correction ... | 02/13/2001 |
| 6172716 | Video processing circuit Improved circuitry for adjusting the video gain, black level, chroma gain and burst phase of a video signal includes composite to Y/C splitter, luminance processing section, sync separator and chroma processor. Unity and split mode selection is provided. ... | 01/09/2001 |
