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| Number | Title | Issue Date |
| 7417687 | Video synchronization signal removal circuitry A video synchronization signal removal circuit in which a synchronization signal component of an incoming video signal is detected whereupon a reference signal corresponding to a black video level is substituted substantially during the synchronization signal interv... | 08/26/2008 |
| 7397484 | Method for displaying an image A method of displaying an image including receiving a plurality of corresponding to an image data, wherein each of the plurality of frames includes a plurality of color sub-frames; sequentially displaying the color sub-frames corresponding to a first frame in a firs... | 07/08/2008 |
| 7321397 | Composite color frame identifier system and method A color frame identifier circuit generates a pseudo-subcarrier signal and compares the pseudo-subcarrier signal to a sliced color burst of at least one selected line in a video frame. Based on this comparison, a processing circuit determines the color frame. ... | 01/22/2008 |
| 7268825 | Digital synchronizing generator A sync generator (genlock) (10) for frequency and phase locking an incoming video signal to a system clock (12) includes a digitizer (16, 22) for digitizing the incoming video signal to yield a digitized color sub-carrier burst component. A nume... | 09/11/2007 |
| 7027102 | Software decoding of composite video without a phase-locked loop A software decoder for converting standard composite video to RGB color components without a phase-locked loop. Subcarrier phase recovery for each video line is accomplished by performing a single DFT computation on the color burst samples for the frequency closest ... | 04/11/2006 |
| 6992727 | Method for detecting video frame types with adaptive thresholds A method for detecting dynamic video pixels by using adaptive counter threshold values according to field difference value of the frame in the video, thereby to determine whether the frame is an interlaced frame or a progressive frame and to eliminate incorrect judg... | 01/31/2006 |
| 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 |
| 6839094 | Method and apparatus for eliminating motion artifacts from video A method and apparatus for detecting and correcting motion artifacts in interlaced video signal converted for progressive video display. A correction is applied where interlaced video material is determined to originate from film source, thereby having been converte... | 01/04/2005 |
| 6536965 | Calendar producing system, producing method, selling system and selling method A calendar selling system comprises a server that stores information of a plurality of pictures and a terminal that receives information of the plurality of pictures from the server and shows the information to a user, and the user selects pictures for a ... | 03/25/2003 |
| 6104440 | Prompter eliminating phase shift in sub-carriers The image signal processing apparatus for a prompter is intended to improve ease in viewing an image when using clock frequencies synchronized to the sub-carriers of the four-field sequence. That is, the sub-carriers with different phases are separated fr... | 08/15/2000 |
| 5539472 | Waveform analyzer for separating an eight field sequence of a PAL video signal An input signal is inputted to an A/D converter through an amplifier and is converted into a digital input signal. A vertical synchronizing pulse and a horizontal synchronizing pulse are taken out of the output signal of the amplifier by means of a TV syn... | 07/23/1996 |
| 5101265 | SECAM color signal processing device A SECAM chroma signal is filtered and supplied to a single axis demodulator, which demodulates first and second chroma signal components modulated with two carriers having frequencies above and below a center frequency, as well as an identification signal... | 03/31/1992 |
| 5068717 | Method and apparatus for synchronization in a digital composite video system In a digital composite video processing system where the video signal has a color subcarrier Fsc, horizontal and vertical sync signals and produces multiple color fields, and where the system has system clock of frequency nFsc for di... | 11/26/1991 |
| 5012327 | Circuit for and method of detecting a color field sequence of a color video signal A color field 1 detector includes analog and digital processor sections, wherein the analog processor section receives a video signal input and provides the digital signals necessary to drive the digital processor section. A timing generator receives a fr... | 04/30/1991 |
| 4975767 | NTSC/PAL subcarrier based H-lock with color framing and detection A NTSC/PAL subcarrier based H-lock with color framing method is disclosed which makes possible color frame detection and a digital lock to horizontal sync on a NTSC or PAL video signal, using timing from a sync separator and an oscillator which is phase l... | 12/04/1990 |
| 4970581 | Circuit for and method of detecting color field sequence in a color video signal A multi-standard color field sequence detector includes an analog and a digital processor section, wherein the analog processor section receives a reference video input and provides the signals necessary to drive the digital processor section. A correlato... | 11/13/1990 |
| 4912550 | Composite sync color frame encoder and decoder A method and system for encoding color frame polarity information into composite sync signals. Also, a method and system for detecting color frame polarity information which has been encoded into composite sync signals and for restoring the encoded compos... | 03/27/1990 |
| 4562457 | Sync generator, video processor A single compact multi-function video processing unit of a color video system has a sync generator for driving a video source and a video processor for providing video functions. A bus system interconnects the sync generator and video processor.... | 12/31/1985 |
| 4454530 | Color framing signal generator A color framing signal generator having a LED (light emitting diode) indicator is disclosed, wherein phase relations between a color burst signal and a horizontal sync (synchronizing) pulse of an incoming composite color video signal are indicated by the ... | 06/12/1984 |
