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| Number | Title | Issue Date |
| 7411622 | Video signal processor The video signal processor of the present invention comprises a CCD for storing an inputted image by converting it into an electric charge through photoelectrical conversion to be stored by each field and then outputting the stored electric charge by each field; a s... | 08/12/2008 |
| 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 |
| 7260523 | Sub-band speech coding system An improved sub-band speech coding system is provided by subdividing signals into a lower an higher subband, downsampling the lower subband before coding and coding the higher subband without downsampling. The decoder includes decoding and upsampling of the lower su... | 08/21/2007 |
| 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 |
| 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 |
| 6862278 | System and method using a packetized encoded bitstream for parallel compression and decompression A system and method are disclosed for parallel compression and decompression of a bitstream. For compression, the bitstream is separated into a plurality of components, and the components are encoded using a compression algorithm. Packets are then constructed from t... | 03/01/2005 |
| 6496229 | TV receiver using read-only memory shared during VSB and QAM reception for synchrodyning I-F signal to baseband In a digital TV receiver a single digital complex multiplier is used for digitally synchrodyning digital intermediate-frequency signal to baseband both during the reception of VSB digital television signals and during the reception of QAM digital televisi... | 12/17/2002 |
| 6253022 | Video signal encoded with additional detail information In video tape recording apparatus composite video signals are separated into their luminance and chrominance components for processing prior to recording. The luminance components are digitized, adaptively temporal and spatial filtered, and folded into a ... | 06/26/2001 |
| 6246827 | Deemphasis and subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal A system for reproducing a luminance signal from a medium containing a previously recorded luminance signal with a high-frequency portion thereof compressed in dynamic range includes a circuit for recovering that luminance signal from the medium. Filterin... | 06/12/2001 |
| 6104863 | Video signal encoded with additional detail information In video tape recording apparatus composite video signals are separated into their luminance and chrominance components for processing prior to recording. The luminance components are digitized, adaptively temporal and spatial filtered, and folded into a ... | 08/15/2000 |
| 5914752 | Band-division signal processing system A band-division signal processing system includes a coding unit and a decoding unit. The coding unit includes: an extracting unit for extracting a part of an original signal to produce a partial band signal; a first quantizer for quantizing the partial ba... | 06/22/1999 |
| 5596418 | Deemphasis and subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal A system for reproducing a luminance signal from a medium containing a previously recorded luminance signal with a high-frequency portion thereof compressed in dynamic range includes a circuit for recovering that luminance signal from the medium. Filterin... | 01/21/1997 |
| 5523850 | Picture signal recording device having adaptive processing circuit for adding color signal and sub-sampled color signal in response to motion signal A picture signal recording device for recording color video signals having a color signal detection circuit detects the quantity of motion of chroma signals from an inter-frame difference between a color difference signal from a chroma recording processin... | 06/04/1996 |
| 5515111 | Method and system for producing enhanced output signals There is provided a system and a method thereof for producing enhanced signals from an irreversible compression first processor in which there were performed irreversible compression encoding of signals and subsequently a compression decoding thereof. The... | 05/07/1996 |
| 5450214 | Video signal processing device A video signal processing device is designed to input selectively a first video signal or a sub-sampled second video signal. These inputs are input to a common filter. The output of the filter is output after being sub-sampled, when the first video signal... | 09/12/1995 |
| 5426465 | Television systems To increase the horizontal bandwith of the Weston PAL chrominance signal spectrum folding techniques are used. Spectral components with high horizontal frequency and low vertical and/or temporal frequency are carried as components with low horizontal freq... | 06/20/1995 |
| 5386235 | Motion signal detecting circuit The motion signal detecting circuit is adapted to an image reproducing system having a frequency unfolding circuit for generating an unfolded luminance signal by unfolding a high frequency component folded into low frequency component into the original fr... | 01/31/1995 |
| 5365274 | Video signal converting apparatus with reduced processing for aliasing interference A video signal conversion apparatus for converting high definition television signals band-width compressed by offset sub-sampling to a conventional standard television signal while removing aliasing interference caused by offset sub-sampling and using le... | 11/15/1994 |
| 5200821 | Arrangement for processing signals before and after transmission and/or storage with flow rate reduction, and signal transmission and/or storage systems including such arrangements In a signal transmission and/or storage system including a transmission stage and, after transmission and/or storage of the signals transmitted on a passband-limited information carrier which implies a processing operation for reducing the quantity of inf... | 04/06/1993 |
| 5174641 | Video encoding method for television applications Continuously monitoring successive frames of a video signal and deciding, based on the similarity between the frames, whether to encode one of them with low or high information content, i.e., as a "low-resolution" frame or a "high-resolution" frame, and w... | 12/29/1992 |
| 5126843 | Interpolation signal producing circuit with improved amplitude interpolation In an interpolation signal producing circuit, amplitudes of a plurality of proximate pixel signals are compared and the order of magnitudes of such pixel signals is determined, whereupon an interpolation signal is derived which is intermediate the largest... | 06/30/1992 |
| 5031030 | Video signal encoded with additional detail information In a system for encoding and decoding high frequency video information, an input video signal includes a high frequency band containing information to be encoded, and a lower frequency band. The frequency spectrum of the input video signal is folded aroun... | 07/09/1991 |
| 4933766 | Interpolation filter and receiver provided with such an interpolation filter A simple and reliable interpolation filter can be provided by a median filter 9 to which signals of the pixels x1, x2 and x3 are applied and which can supply incorrect output values at high spatial frequencies perpendicula... | 06/12/1990 |
| 4912556 | Apparatus for compensating contour of television signal There is provided an apparatus for compensating a contour of a television signal in a TV signal processing apparatus in which a predetermined control signal including a field interpolation control signal to control an interpolating method when reconstruct... | 03/27/1990 |
| 4800427 | Method of compatibly increasing resolution in a color television system Method of compatibly increasing the resolution in a color television system employing offset modulation at the transmitter and offset demodulation at the receiver and transmitting a reference signal during the vertical blanking interval. The reference sig... | 01/24/1989 |
| 4779144 | Image storage using separately scanned luminance-detail and narrowband color-component variables Computer main memory is used for storing relatively densely sampled luminance detail information concerning a television display and for storing relatively sparsely sampled narrowband color-component information concerning the same television display. The... | 10/18/1988 |
| 4723157 | Method for a compatible increase in resolution in color television systems In the transmission of a television signal containing a luminance signal between a transmitting station and a receiving station of a television system, the picture resolution at the receiving station is compatibly increased by: effecting planar prefilteri... | 02/02/1988 |
| 4670773 | Method for compatible increase in resolution for color television transmission systems with reduction of cross-talk noise in motion adaptive picture processing A method for transmitting a color television signal between a transmitting station and a receiving station of a television system and for compatibly increasing picture resolution at the receiving station. In order to reduce crosstalk noise during motion a... | 06/02/1987 |
| 4661850 | Progressive scan television system with interlaced inter-field sum and difference components A progressively scanned video signal is encoded into temporal sum and difference components for transmission. The sum signal is temporally filtered, decimated and time expended to be compatible with interlaced receivers. The difference signal, also tempor... | 04/28/1987 |
| 4551753 | Picture signal processing system including spatio-temporal filter A picture signal processing for converting a wideband high quality picture signal between interlace and sequential scanning systems is effected through a spatio-temporal filter based on multi-dimensional coordinates consisting of at least vertical frequen... | 11/05/1985 |
