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Patent Searching and Data


Matches 451 - 500 out of 8,622

Document Document Title
WO/2001/071650A1
New and improved methods and apparatus (500) for run-length encoding video data. These techniques are especially suited to digital video applications, in which input to a video decoder (534) is generated in order to determine run lengths...  
WO/2001/065858A1
A video signal is compressed by alternately removing predetermined arrangements of pixels, e.g. odd and even lines. In the case of an interlaced video signal, this may comprise removing the even fields of odd frames and odd fields of eve...  
WO/2001/065847A1
An enhancing information generating unit (11) generates a plurality of types of enhancing information for enhancing the quality of images (broadcasting images) aired as a program. An integrating unit (12) embeds at least one of a plurali...  
WO/2001/061648A2
This invention identifies the most significant features in visual scenes, without prior training, by measuring the difficulty in finding similarities between neighbourhoods in the scene. Pixels in an area that is similar to much of the r...  
WO/2001/052550A1
A method and a device are provided, in which a signal is encoded to obtain a bit-stream. Blocks of quantized transform coefficients are provided. Transform coefficients corresponding to higher frequencies are attenuated more than coeffic...  
WO/2001/047260A1
The present invention improves the performance of data receivers used for demodulating the data signals described in the international application WO 99/55087 by employing a novel method of spectrum processing to synthesize a full double...  
WO/2001/043432A1
A command packet (C2) including a version command for checking a profile is sent from a data transmitter (STB) to a data receiver (printer), and a response packet (R2) including the resulting profile information is sent from the data rec...  
WO/2001/039511A1
An image compressing device for encoding an image efficiently without causing apparent color misregistration compresses blocks of luminance component image data and blocks of color difference component data, comprising a resolution deter...  
WO/2001/031497A1
A method of generating an object oriented interactive multimedia file, including encoding data comprising at least one of video, text, audio, music and/or graphics elements as a video packet stream, text packet stream, audio packet strea...  
WO/2001/008418A1
Data elements, preferably representative of video data, are logically divided into blocks. In a bit-wise fashion, each block is inspected to determine whether the data elements for that block may be represented in a highly compact format...  
WO/2000/072588A1
The color signal reproducing apparatus of the invention is composed of multipliers (104, 105) for issuing X- and Y-axis signals by multiplying the color subcarrier signal of SECAM composite video signal by SIN component or COS component ...  
WO/2000/060856A1
The present invention is a method and apparatus for converting scan rates of image data in a memory (140). A buffer (240) stores a source image data. A scaling filter (210) is coupled to the buffer (240) to scale the source image data.  
WO/2000/057649A1
The present invention compresses image data using a predetermined compression technique such as the Microsoft S3 compression scheme. The compressed image is then decompressed and difference values derived between the original image and t...  
WO/2000/052891A1
An interface, e.g., a modem-like interface for converting a digital information signal into an analog signal for use within an analog television studio infrastructure. Namely, the present invention employs a novel modulator (210) that co...  
WO/2000/052937A1
The frequencies of occurrence of the entire items of image information to be encoded are determined. Short code words out of the code words corresponding to the leaves of a binary tree having a prefixed structure are allocated to the ite...  
WO/2000/046749A1
A color image processing method and apparatus thereof are provided. The color image processing method includes the steps of (a) sorting image pixels according to the color distance between the image pixels and a central pixel, (b) groupi...  
WO2000008862A9
An image processing circuit includes a processor that receives a value of an original pixel of an original first video image and a value of an original pixel of an original second video image. The processor generates a first pixel-value ...  
WO/2000/035189A1
A transmission method for transmitting signals in one sequence, wherein a total number of bits of luminance signals in HDTV signals to be transmitted in one frame period of HDTV signals are divided into blocks each corresponding to a tot...  
WO/2000/033583A1
The coded block parameters used to code blocks of image samples into structures called macroblocks are compressed more efficiently by exploiting the correlation between chrominance and luminance blocks in each macroblock. In particular, ...  
WO/2000/028518A2
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, a graphics input and an audio input simultaneously. The chip incorpora...  
WO/2000/027110A1
An electronic, programmable filter is disclosed which selectively removes interference, noise or distortion components from a frequency band without perturbing any of the other signals of the band. An input frequency band such as a telev...  
WO/2000/027066A2
A television receiver system capable of receiving and demodulating television signal information content that has been modulated and transmitted in accordance with a variety of modulation formats is disclosed. In particular, the system i...  
WO/2000/025523A1
A horizontal difference calculating section (21) finds the difference in pixel level between adjacent pixels abutting the border between horizontally adjacent decoded blocks and belonging to the respective blocks and that between pixels ...  
WO/2000/023978A1
A method and system in accordance with the present invention relates to encoding an RGB signal, generated by a computer for display on either a CRT or LCD. In accordance with an important aspect of the invention, an RGB signal is encoded...  
WO/2000/021035A1
The invention concerns a method for encoding a digital image for producing a bit stream representing said image, the bit stream length depending on the quality of the desired representation, characterised in that it consists in: a) defin...  
WO/2000/021207A1
In a video compression processing, such as MPEG-2 compression processing, the quantization (Q) matrix used to quantize discrete cosine transform (DCT) coefficients is updated from frame to frame based on a parameterized Q matrix adaptati...  
WO/2000/019722A1
A method and computer program for operating an interactive themed attraction (12) accessible by computer users (16) is disclosed. The method includes the steps of videotaping at least a portion of a themed attraction to create a video fi...  
WO/2000/019728A1
Method defining a scaling region by indicating in a CFA (Color Filter Array) (Fig. 2) a starting location (510), and generating a super-pixel which is a downscaled version of the scaling region (515), the super-pixel fully color interpol...  
WO/2000/018128A1
The segmenting and actively tracking of semantic video objects from a sequence of frames of digital video information involves receiving an initial frame of video image data and at least one succeeding frame of video image data from a se...  
WO/2000/018126A1
Conventionally, it is necessary to allocate a certain amount of information to an edge portion so as to code a digital image signal, and hence there is a limitation of reduction of the amount of information, degrading the coding efficien...  
WO/2000/017730A2
A method of compressing and decompressing graphics images. The compression method operates on uncompressed bitmap image data to generate a compressed representation of the image. To compress an image, all 8 pixel by 8 pixel blocks of the...  
WO/2000/018133A1
Conventionally, to encode a digital image signal, an appropriate amount of information is allocated to an edge portion. Therefore, the reduction of the amount of information is limited, and accordingly the encoding efficiency is low. An ...  
WO/2000/016562A1
An efficient chroma key-based coding technique for digital video with an optimized switching threshold. An optimized binary keying threshold (T) is provided for switching between a first image region (such as a background region) (B) and...  
WO/2000/014685A1
A generic spatially scalable shape encoding apparatus (210) and method for deriving shape information for chrominance components from luminance component. The present generic spatially-scalable shape encoding applies a series of subband ...  
WO/2000/008586A2
An apparatus and method for detecting a moving object in a sequence of color frame images is provided. The apparatus comprises a color normalizer (100) for normalizing color components of the color frame image to produce a normalized fra...  
WO/2000/007372A1
A method of personalizing a broadcast channel, comprising: receiving an input from a user (110); and personalizing the broadcast channel; and transmitting the personalized broadcast channel to the user using a compressed video transport ...  
WO/2000/007083A2
Providing a plurality of display commands which represent display (104). Generating a plurality of quantized transformed coefficients (106) from display command, wherein quantization is different for different display commands. Creating ...  
WO/2000/007091A1
A computer may be remotely accessed. At a first location, display commands are generated. The display commands are covered into a compressed video data stream. Each display element (50) is checked if it is encoded (52). If object is enco...  
WO/2000/005900A1
A luminance notch filter for preventing color crosstalk adaptively attenuates a SECAM luminance signal depending on the strength of the luminance signal using digital filtering techniques. The adaptive luminance notch filter includes a b...  
WO/1999/060744A1
A decision directed phase detector that uses the quantized data output from a slicer to aid the phase error detection process to determine a phase error of a complex signal such as a vestigial sideband (VSB) signal containing in phase (I...  
WO/1999/060746A1
A method and apparatus for performing phase detection and timing recovery for a vestigial sideband (VSB) signal by processing a complex valued passband VSB signal using a high order non-linearity to detect the phase of the VSB signal. As...  
WO/1999/060745A1
A phase detector that uses symbol sign information to aid the phase error detection process to determine a phase error of a complex signal such as a vestigial sideband (VSB) signal. The phase detector comprises a subtractor having one in...  
WO/1999/060781A1
A passband equalizer that performs blind equalization upon a complex signal, e.g., a vestigial sideband (VSB) signal, without using a training sequence. The passband equalizer contains a decision directed equalizer (DFE) that operates up...  
WO/1999/060793A1
A coding method and apparatus that include splitting raw image data (200) into a plurality of channels (R, G1, G2, B) including color plane difference channels (R-G1, B-G2), and then compressing separately each of these channels using a ...  
WO/1999/059329A2
A technique (200) for compressing video images (102) 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 blo...  
WO/1999/057909A1
Color video data is compressed by storing only the most frequently occurring colors in a block of pixel data. A minimum number of colors for the block is determined determining when colors in a block are the same or comparatively close t...  
WO/1999/055013A2
A method and apparatus of supporting a video protocol in a network environment. Video processing and hardware requirements associated with a receiver are minimized by specifying a single video protocol for transmission of video data betw...  
WO/1999/055094A1
A waveform generator provides chrominance identification waveforms for insertion into a SECAM encoded signal and includes a timing circuit which determines a sequence of identification line intervals within vertical blanking intervals fr...  
WO/1999/052294A1
An encoding/decoding method and apparatus encode an input data stream for compression purposes, and decode the compressed data stream for use. The encoding process identifies trends in the data stream, and stores information about the tr...  
WO/1999/050819A2
A technique for encoding pixel colour values for a full or partial digital video image frame has each different colour within the image being assigned a colour value. The most common one of the colours (0) within the frame or frame segme...  

Matches 451 - 500 out of 8,622