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Class 348/391.1 - Specified color signal


Subclass of Class 348 - Television
Definition: Subject matter wherein the signals compressed are the
No. of patents: 49
Last issue date: 07/15/2008


1    
NumberTitleIssue Date
7400727Information embedding method, information extracting method, information embedding apparatus, information extracting apparatus, and recording media
An apparatus for embedding secret information in an image signal transmitted with a shape signal showing the shape of an object is described. This apparatus comprises an embedding position decision unit for deciding a position in the object where the secret informat...
07/15/2008
7310353Compression of overhead in layered data communication links
An apparatus, system and method for converting data in a first packet format, having overhead data in the form of headers and/or trailer padding, into a second, variable-length packet format, in which some of the header and/or trailer overhead is removed during conv...
12/18/2007
7213142System and method to initialize registers with an EEPROM stored boot sequence
A system and method to initialize registers with an EEPROM stored boot sequence is described. The method includes reading configuration records from an EEPROM coupled to an ASIC upon system reset. The configuration records specify target configuration registers and ...
05/01/2007
7199735Method and apparatus for entropy coding
A method for performing entropy coding comprising the steps of (A) receiving an input stream and side information, (B) analyzing the side information to determine all constraints associated with the side information and (C) replacing the input stream with an index t...
04/03/2007
7184797Data transfer rate display selection
A device for displaying data transfer rates on a display. The device includes a system for displaying the transfer rates in an alphanumeric mode or an alternative graphics mode; and a system for switching between displaying the transfer rates in the alphanumeric mod...
02/27/2007
7170552Digital imaging system and file format for storage and selective transmission of processed and unprocessed image data
An electronic still imaging system employs an image sensor comprised of discrete light sensitive picture elements overlaid with a color filter array (CFA) pattern to produce color image data corresponding to the CFA pattern, an A/D converter for producing digital CF...
01/30/2007
7162092System and method for processing image data
A method of decompressing a set of subsampled image data is disclosed. The method includes reading a first subset of the subsampled image data into a cache memory and into a buffer, wherein the buffer has an amount of memory equal to or less than the cache memory, c...
01/09/2007
7149906Communication device
A communication device which transmits/receives data to/from a host device connected thereto via a bus having a signal line and a power line. A communication controller which is always supplied with power as long as a bus is connected thereto and a MCU are so arrang...
12/12/2006
7130423Threshold encoding of frame buffers
A method for encoding and decoding frames by generating a key bitstream such that the key bitstream never has to be stored is disclosed. The method consists of a key generation algorithm using a threshold matrix to generate a key that is very similar to original bit...
10/31/2006
7103103Segmenting encoding system encoding video data using segment-by-segment kinetic data including change information in addition to translation information
Video data is compressed with nonkey frames encoded with reference to segmentation of reference frames, where the encoded video data includes kinetic information relating segments of a reference frame to pixels of a nonkey frame and the kinetic information includes ...
09/05/2006
7095398Display driver and driving method
A display driver has a data input (18) for compressed data and a plurality of output (41) for driving respective column lines of a display. By accepting compressed data, the necessary data rate provided to the display driver can be reduced. A plurality...
08/22/2006
7082166Decoder for decoding segment-based encoding of video data using segmentation performed at a decoder
A decoder decodes compressed video data wherein nonkey frames are decoded with reference to other frames from the video data that are reference frames. The decoder generates at least a part of a segmentation of the reference frames for use in decoding nonkey frames....
07/25/2006
7081919Green reconstruction for image sensors
The present invention relates to interpolating a missing color value of a given pixel in an array of pixels. The missing color value is determined from color values of neighboring pixels using a median-based technique in which the median is taken of the four pixels ...
07/25/2006
7031514Image compression method
Bitmap digital image data having one or more color channels is divided into image sizes corresponding to an optimum processing unit set according to computer's processing capability and requested image quality. Each unit image data is further divided according to th...
04/18/2006
7031541System, method and program for improved color image signal quantization
A system and method of processing a component color image signal extracted from image signals are disclosed, including a quantizing unit for quantizing the component color image signal over a plurality of quantization regions of the component color image signal, suc...
04/18/2006
6947060Image 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
6944339MPEG-4 binary shape transmission
The present invention relates to a method of processing a digital video data signal (DVS) in order to insert binary shape data into the digital video data signal. Such a method is used for processing the digital video data signal containing data relating to rectangu...
09/13/2005
6847682Method, system, device and computer program product for MPEG variable bit rate (VBR) video traffic classification using a nearest neighbor classifier
A method, system, device and computer program product for moving pictures experts group (MPEG) variable bit rate (VBR) video traffic classification using a nearest neighbor classifier, including determining I, P and B frame sizes for an input MPEG VBR video sequence...
01/25/2005
6760036Extended precision visual system
A method for extending the data width of a graphics processing channel in a computer graphics system. The method includes the first step of providing a plurality of graphics processing channels having pre-defined output data widths or capacities. The next step is co...
07/06/2004
6690731Method and apparatus for diagonal processing of video data
A method for diagonal processing of video data includes separating diagonally arranged data from rectilinearly arranged data in a video stream, rotating the diagonally arranged data to a rectilinear position; and compressing the rotated diagonally arrange...
02/10/2004
6614483Apparatus and method for compressing image data received from image sensor having bayer pattern
Method and apparatus for image data compression that greatly reduces implementational complexity and cost, and improves error correction. These improvements are achieved at various implementational blocks which include a color extraction unit that can per...
09/02/2003
6429900Transmission of wideband chroma signals
A method of transmission of wide bandwidth chroma signals converts a component video signal having a luminance and two half-bandwidth chroma components into a 0:4:4 video signal having no luminance component and two wide bandwidth chroma components. Half ...
08/06/2002
6396948Color rotation integrated with compression of video signal
A technique for compressing video images uses temporary compression of blocks during compression, integrated color rotation of compressed images, direct compression of a composite video signal, and border filters to allow blocks to be compressed independe...
05/28/2002
6347151Image signal converting/encoding method and apparatus
An image signal expressing pel values and a significance signal declaring for each pel whether the pel value is significant are supplied as input signals. By referring to the input significance signal values for the pels proximal to the pel being processe...
02/12/2002
6332041Feature-region extraction method and feature-region extraction circuit
The present invention is intended to exactly extract a feature-region along its contour line without erroneously extracting any moving object other than the feature-region. An extraction signal from a feature-region main-portion extracting circuit is sent...
12/18/2001
6198508Method of encoding picture data and apparatus therefor
A method for encoding picture data using scan interleaving pixels and an apparatus and method for encoding the picture data includes the steps of determining whether pixels of a present scanning line in a predetermined frame of an image should be encoded ...
03/06/2001
6184936Multi-function USB capture chip using bufferless data compression
A method and system for capturing live video signal data using bufferless data compression is disclosed. Live video signal data is vertically scaled. A 4:2:2 to 4:2:0 color format conversion is performed simultaneous with the vertical scaling step. A one-...
02/06/2001
5953691Processing system with graphics data prescaling
A method and apparatus for prescaling graphics data for use in a graphics overlay operating mode of a set top box processing system. RGB pixel data for a given pixel are first converted to luminance and chrominance data for that pixel. The luminance and c...
09/14/1999
5930526System for progressive transmission of compressed video including video data of first type of video frame played independently of video data of second type of video frame
Different data sets are parsed from a video clip for sequential transmission from one computer system to another computer system over a communications link. The receiving node is able to play back a version of the video clip after receiving each successiv...
07/27/1999
5838394Picture storage device separates luminance signal into even number and odd number data and separates two channel color signal into former half pixels and latter half pixels
A picture storage device conveniently employed in conjunction with an electronic still camera or a video camera has an input data converting unit for separating luminance signals of input color picture data having a non-interlaced data format with the sam...
11/17/1998
5793427Processing system with delta-based video data encoding
A method and apparatus for differential video data encoding which utilizes a reduced number of bits per pixel to encode chroma and luma components of a video data stream. A 4-bit absolute code is determined for a given 8-bit luma or chroma component in th...
08/11/1998
5786855Method and apparatus for coding segmented regions in video sequences for content-based scalability
A method and apparatus for generating region frames from video frames are disclosed which employs an industry standard encoder to lessen the negative impact on the quality of the transmitted video sequence while consuming fewer bits. The method and appara...
07/28/1998
5748242Color video vector quantization with chrominance codebook bypass
A method and apparatus for low bit rate coding of color video signals in which the use of the codebook entry identified by the codebook index may be bypassed in the coding of chrominance information when it is determined that it is advantageous to do so. ...
05/05/1998
5731988Method and apparatus for reversible color conversion
A method and apparatus for performing color conversion on image data provided as a plurality of vectors representing a datum of the image. The present invention provides a forward transform that performs reversible color conversion on the plurality of vec...
03/24/1998
5684895Method for decoding a compressed image
A decoding technique that allows a compressed image to be constructed into a full color page for printing is disclosed. The technique employs a split-level image buffer. The image is divided into small blocks which can be individually compressed and decom...
11/04/1997
5654773Picture storage device separates luminance signal into even number and odd number data and separates two channel color signal into former half pixels and latter half pixels
A picture storage device conveniently employed in conjunction with an electronic still camera or a video camera has an input data converting unit for separating luminance signals of input color picture data having a non-interlaced data format with the sam...
08/05/1997
5583794System for compressing and decompressing multidimensional images, capable of efficiently decompressing images without assurance of equivalence in pixel or frame
A multidimensional image compression and decompression system wherein, during compression, regardless of how high or low the pixel density is in an image used as an object for processing image data, compressed image data is obtained by extracting only cha...
12/10/1996
5463702Perceptual based color-compression for raster image quantization
A method and apparatus for performing color compression uses human factors to weight a distance metric in order to select a set of k presentation colors to represent n colors in an original image, where n>k. This same distance metric is used as part of a ...
10/31/1995
5450130Method and system for cell based image data compression
A method and system for compressing color video or other image data for transmission over a low cost, low bandwidth bus (or other transmission link). Preferred embodiments implement lossless compression and include a frame buffer for storing data compress...
09/12/1995
5432554Method and apparatus for decoding images using a specified data format
A method and apparatus for decoding image data. Before decoding, the image data has an OPERATING SYSTEM header, a BITSTREAM header, a Y-COMPONENT DATA field, a U-COMPONENT DATA field, and a V-COMPONENT DATA field. Each of the DATA fields has a four-byte M...
07/11/1995
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