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| Number | Title | Issue Date |
| 7808552 | Techniques for detecting a pulldown field sequence Techniques for distinguishing a pulldown field sequence from a normal field sequence are disclosed. According to one aspect of the techniques, the method for detecting pulldown field sequence comprises receiving a field sequence, combining two adjacent fields into o... | 10/05/2010 |
| 7800692 | System and method for detecting a non-video source in video signals A video sequence may include a modality corresponding with an embedded pattern. At least one state machine detects the modality in accordance with difference signals. A signal generator generates the difference signals responsive to decision windows that define regi... | 09/21/2010 |
| 7612828 | Progressive video detection with aggregated block SADS A method for detecting progressive material in a video sequence is disclosed. The method generally includes the steps of (A) calculating a plurality of block statistics for each of a plurality of blocks in a current field of the video sequence, (B) calculating a plu... | 11/03/2009 |
| 7602441 | 3:2 pull-down film mode detection using fuzzy logic Fuzzy logic based system and method for 3:2 pull-down film mode detection that detects whether a stream of NTSC video fields originate from film source via 3:2 pull-down technique. Fuzzy logic is used to generate a reference sequence of symbols from the stream of NT... | 10/13/2009 |
| 7395031 | Mobile device and method for receiving and processing program-accompanying data Mobile device (3) and method for receiving and processing program-accompanying digital data, which are transmitted by a radio transmitter (1), for example a DAB transmitter, and of which at least certain comprise location parameters. The mobile device ... | 07/01/2008 |
| 7349029 | Method and apparatus for de-interlacing interlaced video fields originating from a progressive video source A method for de-interlacing an interlaced video signal includes generating a per-field motion pattern set for a subject video field, where the motion pattern set comprises a same-parity motion pattern and an opposite-parity motion pattern pair, providing a plurality... | 03/25/2008 |
| 7312830 | Decoding information for interlaced to progressive scan conversion A method of converting interlaced video to progressive video can include a series of steps. The method can include receiving a video signal representative of at least one picture and determining whether the picture is progressive. If the picture is progressive, a ve... | 12/25/2007 |
| 7301666 | Image processing apparatus and method, image synthesizing system and method, image synthesizer and client computer which constitute image synthesizing system, and image separating method An image processing apparatus and method are disclosed. The system includes an image area designating device that designates an area to be extracted of an original image displayed on a display screen. A color changing device changes the color of an area, excluding t... | 11/27/2007 |
| 7274404 | Motion object video on film detection and adaptive de-interlace method based on fuzzy logic A method and system for performing fuzzy logic based de-interlacing on film source fields that might be mixed with video on film. An embodiment of the invention comprises an adaptive de-interlacer by weighing between merge operation and interpolation operation in th... | 09/25/2007 |
| 7268828 | Television receiver and control method thereof for displaying video signals based on different television modes A television receiver includes a switching portion which receives each of a video signal received and obtained by an antenna and a video signal read from a storage medium, and selectively outputs one of the video signals in response to an instruction signal for outp... | 09/11/2007 |
| 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 |
| 7215380 | Method for detecting video frame types with median filtering The invention relates to a method for detecting video frame types with median filtering, which proceeds a denoising step after calculating the comb factor of each pixel, to avoid incorrect judgment of the frame type resulting from excessive field difference and impr... | 05/08/2007 |
| 7212246 | Image signal format detection apparatus and method An image signal format detection apparatus and method. The image signal format detection apparatus includes a first summed absolute difference (SAD) value calculation unit for calculating, from a previous field, a current field, and a next field of a time-consecutiv... | 05/01/2007 |
| 7176977 | Frame rate conversion of interlaced and progressive video streams A method and system for deinterlacing an interlaced video stream is presented. The method and system determines whether an interlaced video stream is a normal mode video stream or a special mode video stream. Special mode video streams, which interlaced video stream... | 02/13/2007 |
| 7129990 | System and method for detecting a non-video source in video signals A system detects a non-video source embedded in a video sequence and provides direction to a deinterlacing algorithm accordingly. The system comprises a signal generator for generating a plurality of signals. The signals are generated in accordance with pixels input... | 10/31/2006 |
| 7110450 | Moving picture encoding apparatus Deterioration of picture quality is prevented even in a transmission environment in which errors easily occur. A block significance determining section produces block significance for each block as an encoding unit according to predetermined evaluation indices. A ma... | 09/19/2006 |
| 7095902 | Image processing apparatus, image processing method, and program product An image signal output from a CCD is input to an edge emphasis adjusting unit. A scene determining unit determines a scene of an image to be processed on the basis of an operation of selecting a shooting mode or the like. A tone characteristic control unit performs ... | 08/22/2006 |
| 7075580 | Edge adaptive spatial temporal deinterlacing Embodiments of the present invention provide an edge adaptive spatial temporal deinterlacing filter that evaluates multiple edge angles and groups them into left-edge and right-edge groups for reconstructing desired pixel values. A leading edge is selected from each... | 07/11/2006 |
| 7016407 | Pre-processing of bit rate allocation in a multi-channel video encoder A method and apparatus for bit rate allocation, or statistical multiplexing, in a multi-channel video data encoder. A pre-processor in each channel determines a bit rate need prior to compression and encoding. A control processes the bit rate need in each channel to... | 03/21/2006 |
| 6970206 | Method for deinterlacing interlaced video by a graphics processor A method for deinterlacing interlaced video using a graphics processor includes receiving at least one instruction for a 2D/3D engine to facilitate creation of an adaptively deinterlaced frame image from at least a first interlaced field. The method also includes pe... | 11/29/2005 |
| 6967687 | Display control apparatus and method A display control apparatus and a display control method are provided in which a resolution of an input image signal is judged, a change in the image signal is detected, and the image signal is adaptatively interpolated in accordance with the judgement and detection... | 11/22/2005 |
| 6965414 | Apparatus for detecting telecine conversion method of video signal A telecine conversion method detecting apparatus which determines that an input video signal is a telecine converted video signal generated from a movie film in accordance with a 2-3 pull-down method when detecting that an inter-frame difference accumulated value of... | 11/15/2005 |
| 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 |
| 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 |
| 6930729 | Apparatus and method for deleting sawtooth wave An apparatus and method for processing a video signal, and particularly, an apparatus and method for deleting a sawtooth wave are provided in which a sawtooth wave component is detected and with consideration of direction the sawtooth wave is deleted. The sawtooth w... | 08/16/2005 |
| 6870568 | Progressive/interlace and redundant field detection for encoder A method of processing video data to detect field characteristics of the data, including processing pixel values of the data to obtain differences between the values of two successive fields of the data, processing the difference values to detect interlace patterns ... | 03/22/2005 |
| 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 |
| 6791621 | Image processing apparatus and method and signal switching output device A line doubling processing system has an input signal switching output section for receiving sequential input fields and for outputting, based on the sequential input fields, a plurality of fields obtained from the same image, and a line doubling device for generati... | 09/14/2004 |
| 6704055 | 3:2 pull-down film mode detection using fuzzy logic Fuzzy logic based system and method for 3:2 pull-down film mode detection that detects whether a stream of NTSC video fields originate from film source via 3:2 pull-down technique. Fuzzy logic is used to generate a reference sequence of symbols from the s... | 03/09/2004 |
| 6657675 | Method and apparatus for converting non-standard video broadcast signals to display capable video signals Non-standard broadcast television signals are processed and converted for proper reception and display. Extra or missing horizontal lines are processed using modulo or digital phase lock loop-type circuit to change clock output signal proportionately acco... | 12/02/2003 |
| 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 |
| 6580461 | Line-quadrupler in home theater uses line-doubler of AV-part and scaler in graphics controller of PC-part A home theater comprises a video processing sub-system and a PC capable of controlling the sub-system. The sub-system has a de-interlacer/line doubler and the PC has a graphics controller with scaling capability. The combination of the line doubler and th... | 06/17/2003 |
| 6563550 | Detection of progressive frames in a video field sequence A progressive video frame is detected in a sequence of video fields, wherein the sequence of video fields includes a target video field. Detection includes generating one or more metrics by comparing the target video field with an immediately preceding an... | 05/13/2003 |
| 6545725 | Apparatus for identifying standard and non-standard video signals In order that such a signal as is conventionally determined to be a standard signal in the unit of one field and determined to be a non-standard signal in the unit of a plurality of fields can be determined to be a non-standard signal, the following are p... | 04/08/2003 |
| 6529205 | Image data display apparatus in which image data are displayed on terminal display unit and NTSC system display unit An image data display apparatus includes a terminal display unit, an NTSC display unit, and a frame memory having a first port and a second port, for storing an image data. A display timing control unit generates a terminal display timing signal and an NT... | 03/04/2003 |
| 6437828 | Line-quadrupler in home theater uses line-doubler of AV-part and scaler in graphics controller of PC-part A home theater comprises a video processing sub-system and a PC capable of controlling the sub-system. The sub-system has a de-interlacer/line doubler and the PC has a graphics controller with scaling capability. The combination of the line doubler and th... | 08/20/2002 |
| 6433832 | Image display apparatus and personal computer for displaying personal computer signals and broadcast signals When a video signal is double-speed processed by the first device, a slight vertical deflection process is performed for redundant similar scan lines by the second device, and any slight deflection in the second device is controlled by the first device to... | 08/13/2002 |
| 6340990 | System for deinterlacing television signals from camera video or film A method and apparatus is disclosed for converting an interlaced television display to a progressive, scan, or non-interlaced display where artifacts are removed if the source of the signal is from a movie film to television converter, a video recording o... | 01/22/2002 |
| 6297847 | Removal of interpolation artifacts in a non-interlaced video stream Visible artifacts introduced into a digitally sampled video signal are removed from a non-interlaced version of the video signal. The non-interlaced version of the video signal is generated by a converter that converts a digitally sampled interlaced video... | 10/02/2001 |
| 6268887 | Image display apparatus and personal computer for displaying personal computer signals and broadcast signals When a video signal is double-speed processed by the first device, a slight vertical deflection process is performed for redundant similar scan lines by the second device, and any slight deflection in the second device is controlled by the first device to... | 07/31/2001 |
