Patents Examined by Matthew Haney
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Patent number: 7042944Abstract: A video coding technique having motion compensation for bi-directional predicted frames (B-frames) and predicted frames (P-frames). The video coding technique involves a single-loop prediction-based base layer which includes base layer B- and/or P-frames that are generated from “extended” or “enhanced” base layer reference frames during base layer coding.Type: GrantFiled: June 21, 2001Date of Patent: May 9, 2006Assignee: Koninklijke Philips Electronics N.V.Inventors: Mihaela van der Schaar, Hayder Radha
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Patent number: 6950469Abstract: A method of interpolation in video coding in which an image comprising pixels arranged in rows and columns and represented by values having a specified dynamic range, the pixels in the rows residing at unit horizontal locations and the pixels in the columns residing at unit vertical locations, is interpolated to generate values for sub-pixels at fractional horizontal and vertical locations, the method comprising: a) when values for sub-pixels at half unit horizontal and unit vertical locations, and unit horizontal and half unit vertical locations are required, interpolating such values directly using weighted sums of pixels residing at unit horizontal and unit vertical locations; b) when values for sub-pixels at half unit horizontal and half unit vertical locations are required, interpolating such values directly using a weighted sum of values for sub-pixels residing at half unit horizontal and unit vertical locations calculated according to step (a); and c) when values for sub-pixels at quarter unit horizType: GrantFiled: September 17, 2001Date of Patent: September 27, 2005Assignee: Nokia CorporationInventors: Marta Karczewicz, Antti Olli Hallapuro
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Patent number: 6917652Abstract: Device and method for decoding a plurality of video bitstreams on the same time by using one decoder by making time multiplexing decoding of bitstreams in different frame rates and film modes in frames, which facilitates simultaneous processing of multiple video bitstreams for PIP, POP, multi-channel broadcasting, and the like by using, not numerous video decoder, but only one HD class video decoded, a required memory size can be reduced significantly, and an IC size can be reduced further if the present invention is applied to an ASIC, that enhances competitiveness.Type: GrantFiled: January 11, 2001Date of Patent: July 12, 2005Assignee: LG Electronics, Inc.Inventor: Hwa Young Lyu
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Patent number: 6898240Abstract: One embodiment comprises a method for image processing. The method includes identifying an uncovered region in an image, determining at least one trivalent point, and extrapolating from the trivalent point to extend an edge of at least one of the image segments into the uncovered region. Another embodiment comprises an apparatus for image processing. The apparatus includes a predictor for predicting higher-frequency boundary information in newly uncovered regions. Another embodiment comprises a system for efficiently communicating video information. The system includes an encoder that encodes a video frame into an encoded frame, and a decoder that receives and decodes the encoded frame, wherein the encoder and decoder are both configured to identify uncovered regions and to extend edges from neighboring image segments into the uncovered region.Type: GrantFiled: March 7, 2002Date of Patent: May 24, 2005Assignee: PTS CorporationInventors: Adityo Prakash, Eniko F. Prakash, Edward Ratner, John S. Chen
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Patent number: 6895056Abstract: The present invention provides a data processing apparatus and method for performing an adaptive filter operation on an input data sample to generate an output data sample. In accordance with an adaptive filter operation, a logical computation is performed on a logical data item to determine whether a filtering computation should be applied to the input data sample.Type: GrantFiled: January 30, 2002Date of Patent: May 17, 2005Assignee: Arm LimitedInventor: John Stansfield Graley
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Patent number: 6859497Abstract: A command frame according to the invention comprises at least one last command with a continue bit, and a number of padding bits so that the frame occupies an integer number of words. It is designed to allow the position of the continue bit of last command to be determined. A method according to the invention of concatenating a first and a second command frame comprises the following steps: a) determination of the position of the continue bit of the last command of the first frame, b) modification of the continue bit of the last command of the first frame, c) suppression of the non-significant bits of the first frame, d) insertion of at least one command from the second frame after the modified continue bit, e) addition of a number of padding bits in order to form a new frame that occupies an integer number of words.Type: GrantFiled: February 12, 2002Date of Patent: February 22, 2005Assignee: Koninklijke Philips Electronics N.V.Inventor: Laurent Michel Olivier Duquesnois