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| Number | Title | Issue Date |
| 7391836 | System and method for synchronous clock re-generation from a non-synchronous interface A system and method transmits data received at varying frequencies at a fixed data rate. The frequency dependent data and associated data clock signal are received and the frequency dependent data is converted to frequency independent data. A ratio of a number of da... | 06/24/2008 |
| 7304656 | Device for digital display of a video image The present invention relates to a device for digital display of a video image using time-division modulation. This device is intended to display a video image during a video frame comprising a plurality of consecutive subfields distributed within at least two separ... | 12/04/2007 |
| 7227582 | Graphics display system with video synchronization feature A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, graphics input and audio input simultaneously. The system includes a video decoder having a chroma-... | 06/05/2007 |
| 7216074 | System for bandwidth extension of narrow-band speech A system, computer-readable medium and generated signal are disclosed for extending the bandwidth of a first signal (i.e., a narrowband signal) such as a speech signal. The system produces a second signal from a first signal by computing first area coefficients from... | 05/08/2007 |
| 7167208 | Digital broadcasting receiver and method for compensating color reproduction error of the same Digital broadcasting receiver, and method for compensating a color reproduction error therein, the digital broadcasting receiver including a channel decoder, a TP part for demultiplexing a TP stream from the channel decoder for being provided with a PCR (Program Clo... | 01/23/2007 |
| 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 |
| 6836294 | Method of decreasing delay through frame based format converters An apparatus converts an input video signal having a first format into an output video signal having a second format. A formatter receives the first video signal and divides each field or frame into an active video top and bottom half. Two format converters receive ... | 12/28/2004 |
| 6751256 | Transmission of digital images within the NTSC analog format HDTV and NTSC compatible image communication is done in a single NTSC channel bandwidth. Luminance and chrominance image data of a scene to be transmitted is obtained. The image data is quantized and digitally encoded to form digital image data in HDTV transmission ... | 06/15/2004 |
| 6646684 | Image conversion device and method One of an output picture signal with a field double speed of AABB type and an output picture signal with a field double speed of ABAB type is selectively generated with selection signals SL1 and SL2. In the AABB type, among first, second, third, and fourt... | 11/11/2003 |
| 6323907 | Frequency converter A frequency converter is disclosed, which improves processing time and reduces hardware costs, in converting input data sampled at a first frequency into output data compatible with a system operating at a second frequency. The frequency converter has fir... | 11/27/2001 |
| 6172713 | Color television system determination circuit A color system determination circuit for use with an input video signal having a frequency component is disclosed. The circuit includes a color trap filter for attenuating the frequency component in the input video signal with the color trap filter provid... | 01/09/2001 |
| 5943100 | Circuit arrangement for frequency conversion of a color signal For purposes of simple construction and universal application, a circuit arrangement for frequency conversion of a color signal to a second carrier frequency, this color signal being present in picture lines and including a color burst and a chrominance i... | 08/24/1999 |
| 5844619 | Flicker elimination system A system and method for eliminating flicker in an interlaced video-display image using an input-video processor, a feature-video processor, a frame buffer, an RGB-output processor, an output-video processor, a control processor, and a synchronized-clock d... | 12/01/1998 |
| 5844617 | Method and apparatus for enhancing the vertical resolution of a television signal having degraded vertical chrominance transitions A received 4-2-0 format, 2-1 interlaced digital component video signal is upconverted to a 4-2-2 format, 2-1 interlaced digital component video signal and a vertical chrominance bandwidth expansion enhancement signal is combined with the chrominance compo... | 12/01/1998 |
| 5757436 | Image processor system An image-processor system for compensating for accumulated phase-and-gain errors incurred during transmission of a video signal over a communications channel. The image-processor system comprises an initial-video processor, an input-video processor, a fea... | 05/26/1998 |
| 5444495 | Muse-NTSC converter having two oscillators A MUSE-NTSC converter of a relatively simple and small scale circuit design. An oscillation signal from a 28.63636 MHz oscillator (20) is eight times as large as a subcarrier frequency fsc. A Y image processing circuit (17) and a chroma encoder (18) can p... | 08/22/1995 |
| 5218429 | High-definition television signal converter A high-definition signal is band-compressed and is supplied to a simple MUSE processor. The simple MUSE processor generates a simple high-definition television signal. A scanning line processor converts said simple high-definition television signal into a... | 06/08/1993 |
| 5032902 | Playback color processing circuit A playback color processing circuit for a video tape recorder includes an automatic phase control loop and has two comb filters. A first comb filter. A contains a single 1H delay line for canceling adjacent-track crosstalk in the automatic phase control l... | 07/16/1991 |
| 4466022 | Color video signal reproducing apparatus which transforms the recorded signal of one signal format into signals of another format upon reproduction A color video signal reproducing apparatus comprises a reproducing circuit for picking up and reproducing a recorded signal from a recording medium in which a carrier chrominance signal and a color burst signal within a PAL system color video signal are c... | 08/14/1984 |
| 4359756 | Chrominance signal limiter A filter separates a composite video input signal into luminance and chrominance signal components. DC signals are combined with the luminance signal to produce four control signals, first and fourth ones of which have an AC component inversely proportion... | 11/16/1982 |
| 4323915 | Method and an apparatus for video tape recording A method and an apparatus for the recordation and reproduction of standard color-television signals, the apparatus including an encoder having circuitry for separating into separate signals the luminance and chrominance portions of a standard color-televi... | 04/06/1982 |
| 4318120 | Color TV buried subcarrier system A system including an encoder for translating a standard color TV video signal to a buried subcarrier video signal for transmission, and a decoder for translating the received buried subcarrier video signal back to a standard video signal. A cross-hatch p... | 03/02/1982 |
| 4316213 | Video processor employing variable amplitude compression of the chrominance component A composite video signal is separated into luminance and chrominance components which are processed in separate channels having transfer functions which differ in terms of frequency response and large signal amplitude response. The luminance channel subje... | 02/16/1982 |
| 4217603 | Method and apparatus for processing color television signals Methods and apparatus for processing color television signals for recording and playback on a magnetic tape and for subsequent display on a conventional Phase Alternation Line (PAL)-type color television receiver. A number of embodiments of the invention ... | 08/12/1980 |
| 4051517 | Hybrid sequential and carrier encoded color television transmission method and circuits A method and circuits for encoding a color video signal for processing, preferably recording and/or playback of said signal within a limited bandwidth of not more than 3MHz without a separate channel for color information such that one half the sum of two... | 09/27/1977 |
