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7391808 |
System and method for upgrading processing capabilities of a media center
Video data encoded according to new compression standards may be processed by an existing client terminal using an adaptive module that transcodes the video data into a format compatible with the...
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7386049 |
Predictive interpolation of a video signal
A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of generating an interpolated base frame image; receiving a first previously decoded difference...
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7369614 |
MPEG decoder of images from multiple sequences
A circuit for controlling an MPEG decoder rated by a signal of given period likely to decode several coded images, receiving at each period beginning an order to decode several images of a first or...
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7369612 |
Video decoder and method for using the same
A video decoder and a method for using the same are provided. Selected frames of a video stream are trimmed during the decoding of the video stream. The video stream is received. The video stream...
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7366240 |
Decoder and method of decoding using pseudo two pass decoding and one pass encoding
A method of processing video frame data includes the steps of: receiving a video frame; partially decoding the video frame; fully decoding the video frame to produce macroblocks; determining video...
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7362804 |
Graphical symbols for H.264 bitstream syntax elements
An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a decoded video signal and syntax elements in response to an encoded bitstream. The...
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7359441 |
Packet data processing determination apparatus
In a packet data processing determination apparatus (DBA 1 ) for respectively and sequentially determining a plurality of packet data (P) composing an inputted transport stream (TS), a packet data...
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7356082 |
Video/audio signal processing method and video-audio signal processing apparatus
A metadata extraction unit has a feature point selection and motion estimation unit 62 for extracting at least one feature point representing characteristics of the video/audio signals in a...
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7356078 |
Image encoding device and image decoding device
Multiplexing means of an image encoding device multiplexes object display speed information or image display absolute time information, and an image decoding device performs image processing on the...
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7352813 |
PVR-support video decoding system
An MPEG video decoding system with a PVR (Personal Video Recorder) function is disclosed. By applying the PVR function to an MPEG-2 decoder chip, which is the standard recommendation of the digital...
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7349473 |
Method and system for selecting interpolation filter type in video coding
A method and system for coding a video sequence based on motion compensated prediction, wherein an interpolation filter is used to generate predicted pixel values for picture blocks in the video...
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7346112 |
Method of and apparatus for decoding and displaying video that improves quality of the video
The frame-memory control-section partitions a frame memory into a plurality of sectors and stores decoded video data of frames not used as predictive video in the frame memory. The frame-memory...
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7342967 |
System and method for enhancing performance of personal video recording (PVR) functions on hits digital video streams
A system, method, and apparatus for reducing the video decoder processing requirements for rewinding a HITS stream are presented herein. During rewind of a HITS stream, the video decoder builds a...
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7339992 |
System and method for extracting text captions from video and generating video summaries
Caption boxes which are embedded in video content can be located and the text within the caption boxes decoded. Real time processing is enhanced by locating caption box regions in the compressed...
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7333545 |
Digital video decoding, buffering and frame-rate converting method and apparatus
A decoder decodes full frame MPEG-2 video by a single method that applies regardless of buffer memory and frame rate conversion considerations. A display control module handles frame rate and field...
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7330510 |
Method for displaying base frames during video data decompression
A method for displaying base frames during video data decompression. A tuner selects a base frame of a compressed digital video data steam. The tuner decompresses the selected base frame prior to...
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7327792 |
Digital video system and control method thereof
A digital video system for wirelessly transmitting a signal to a display device, including a receiver that analyzes a packet of the signal wirelessly received through a first transmitting/receiving...
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7327789 |
Decoding apparatus, decoding method, decoding program, and decoding program storage medium
A decoding apparatus is provided with a decoder for receiving plural bit streams and decoding the respective bit streams to output decoded bit streams, and a decoding state holder for saving and...
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7324597 |
Transcoding of video signals
A method of transcoding from H.263 coded video frames to H.261 coded video frames, the method comprising for each INTER coded macro block (MB) of each frame, determining whether a component of the...
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7319415 |
Chroma deblocking filter
An encoder, decoder, and corresponding method are disclosed for deblocking pixel data processed with block transformations, the encoder including a conditional deblocking filter for filtering only...
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7313186 |
Method and apparatus for implementing wavelet filters in a digital system
A digital data system ( 100 ) provides 1-D, 2-D and 3-D capability and multi-band channel capability. Improved filter banks are created by generating a filter bank having an analysis portion and...
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7308146 |
Digital video compression
A method of compressing a current image of a sequence of images is disclosed. Firstly, the current image is transformed with a predetermined transform such as the DWT to provide a set of transform...
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7308028 |
Apparatus and method for generating mosaic images
The present invention relates to an apparatus and method for generating mosaic images, wherein photographed content is displayed as a still image by a digital TV display or video monitor for an...
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7305036 |
System and method for entropy code preprocessing
A system and method for preprocessing a bitstream of compressed video data is presented herein. The bitstream of compressed video data can include, for example, a bitstream in accordance with the...
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7302005 |
Efficient coding of side information in a lossless encoder
For "Super Audio CD" (SACD) the DSD signals are losslessly coded, using framing, prediction and entropy coding. Besides the efficiently encoded signals, a large number of parameters, i.e. the...
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7295614 |
Methods and apparatus for encoding a video signal
The present invention relates to systems and methods for compressing, decompressing, and transmitting video data. The systems and methods include pixel by pixel motion estimation and compensation...
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7295609 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
An image information coding apparatus codes an input image signal in a manner optimized on the basis of the visual characteristics. In quantization, an input image signal is divided into blocks, an...
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7289562 |
Adaptive filter to improve H-264 video quality
A method for reducing or eliminating coding artifacts in video pictures processed using intra block prediction methods, for example, according to the H.264 standard. The causes of the coding...
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7280595 |
Post-inverse-quantization AC prediction with a unified variable-length-decoding and inverse-quantization stage
A motion-picture-experts group (MPEG) decoder performs AC prediction to decode first-column or first-row coefficients that are coded as differences from corresponding coefficients in a prior block...
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7277099 |
Video and graphics system with an MPEG video decoder for concurrent multi-row decoding
A video and graphics system processes video data including both analog video, e.g., NTSC/PAL/SECAM/S-video, and digital video, e.g., MPEG-2 video in SDTV or HDTV format. The video and graphics...
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7274738 |
System for improving performance of compression and decompression algorithms in a telecommunication system
In a telecommunications system, an arithmetic logic unit (ALU) that receives an input signal. The input signal includes a digital signal representative of an analog signal. The ALU selectively...
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7272186 |
Loop filtering method in video coder
Disclosed is a loop filtering method in a video coder enabling to provide an easy real-time processing by reducing a calculation quantity of a video coder in realizing a H.26L standard system and...
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7272185 |
Moving picture encoding apparatus
Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through...
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7269221 |
Encoding system using motion vectors to represent frame-to-frame changes, including motion vector grouping for coding or processing
Motion vectors encode for differences between segments of a reference frame and pixels of a current frame being encoded when the current frame is a nonkey frame. The motion vectors are encoded by...
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7266148 |
Video transcoding apparatus
Disclosed is a video transcoding apparatus converting a specific bit rate of an MPEG (moving pictures experts group) bit stream into a different rate thereof for transportation. The present...
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7263129 |
Predictive encoding and data decoding control
A shortest cut duration is a minimum required period between an edit point set on a stream of pictures such as an MPEG stream and the next edit point set on the stream. Restrictions are made on the...
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7263128 |
Triple-buffering method for overlapped motion compensation in a video decoder
A method of improving performance within video decoders subject to the execution of overlapped motion compensation. The method utilizes a triple-buffering approach to achieve rapid data transfers...
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7260150 |
Systems and methods for decoding of partially corrupted reversible variable length code (RVLC) intra-coded macroblocks and partial block decoding of corrupted macroblocks in a video decoder
The invention is related to methods and apparatus that recover usable video data from partially corrupted data. Embodiments inspect corrupted data packets and identify the location or locations of...
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7257162 |
Hypothetical reference decoder for compressed image and video
One method for analyzing a bitstream having a plurality of compressed pictures comprises computing an initial arrival time and a final arrival time of a compressed picture, wherein the initial...
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7257161 |
Frequency thinning apparatus for thinning out frequency components of signal and frequency thinning apparatus
An analyzer transforms a digital signal into a spectrum representing the digital signal. A spectrum analyzing unit specifies a predetermined number of sets of the bands in decreasing order of the...
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7257160 |
Method and apparatus of picture display
A method and an apparatus of picture display. The invention displays the first picture and the second picture and displaying at least one virtual picture in between the first and the second...
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7254175 |
Frame-accurate seamless splicing of information streams
A method and apparatus for generating universal splice point adapters, where during a splicing operation an “out-point splicing adapter” is used to transition from an exit stream, while an...
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7248633 |
Image decoding device and image decoding method
This invention is an MPEG decoding apparatus ( 10 ) for decoding a compression-coded image data stream, the apparatus including a motion compensation circuit ( 15 ) and error map table holding...
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7248631 |
Method for reducing processing power requirements of a video decoder
A system and method dynamically process video data received by a video decoder by determining a throttling amount, at a decoder throttling device, based on a measure of computational processing...
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7242713 |
2-D transforms for image and video coding
A set of one and two-dimensional transforms is constructed subject to certain range limited constraints to provide a computationally efficient transform implementation, such as for use in image and...
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7236530 |
Variable-length decoding apparatus and decoding method
Encoded data using reversible variable length code words is input to a forward decoder ( 123 ) to be decoded in the forward direction. When an error is detected in the encoded data in the forward...
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7236525 |
Reconfigurable computing based multi-standard video codec
A circuit generally comprising a multiport memory, a direct memory access engine and a programmable gate array is disclosed. The direct memory access engine may be configured to transfer a first...
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7230987 |
Multiple time-base clock for processing multiple satellite signals
An integrated receiver with multiple, independently synchronized clock signals for multiple channel transport stream decoding and delivery substantially implemented on a single CMOS integrated...
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7227898 |
Digital signal conversion method and digital signal conversion device
An inputted digital signal of a first format (DV video signal) is restored to a variable-length code by having its framing cancelled by a de-framing section 11 , then decoded by a variable-length...
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7227589 |
Method and apparatus for video decoding on a multiprocessor system
A method and apparatus for decoding compressed video. The method includes reading a stream of compressed video into a memory. The video includes multiple pictures, with each picture having one or...
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