Patents by Inventor Robert Lewis Schmidt
Robert Lewis Schmidt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8374447Abstract: A method and apparatus prioritizing video information during coding and decoding. Video information is received and an element of the video information, such as a visual object, video object layer, video object plane or keyregion, is identified. A priority is assigned to the identified element and the video information is encoded into a bitstream, such as a visual bitstream encoded using the MPEG-4 standard, including an indication of the priority of the element. The priority information can then be used when decoding the bitstream to reconstruct the video information.Type: GrantFiled: July 13, 2011Date of Patent: February 12, 2013Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Publication number: 20130013989Abstract: A number of novel configurations for MPEG-4 playback, browsing and user interaction are disclosed. MPEG-4 playback systems are not simple extensions of MPEG-2 playback systems, but, due to object based nature of MPEG-4, present new opportunities and challenges in synchronized management of independent coded objects as well as scene composition and presentation. Therefore, these configurations allow significantly new and enhanced multimedia services and systems. In addition, MPEG-4 aims for an advanced functionality, called Adaptive Audio Visual Session (AAVS) or MPEG-J. Adaptive Audio Visual Session (AAVS) (i.e., MPEG-AAVS, MPEG-Java or MPEG-J) requires, in addition to the definition of configurations, a definition of an application programming interface (API) and its organization into Java packages. Also disclosed are concepts leading to definition of such a framework.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 8279940Abstract: A quantizer and dequantizer for use in a video coding system that applies non linear, piece-wise linear scaling functions to video information signals based on a value of a variable quantization parameter. The quantizer and dequantizer apply different non linear, piece-wise linear scaling functions to a DC luminance signal, a DC chrominance signal and an AC chrominance signal. A code for reporting updates of the value of the quantization parameter is interpreted to require larger changes when the quantization parameter initially is large and smaller changes when the quantization parameter initially is small.Type: GrantFiled: May 7, 2010Date of Patent: October 2, 2012Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 8276056Abstract: A number of novel configurations for MPEG-4 playback, browsing and user interaction are disclosed. MPEG-4 playback systems are not simple extensions of MPEG-2 playback systems, but, due to object based nature of MPEG-4, present new opportunities and challenges in synchronized management of independent coded objects as well as scene composition and presentation. Therefore, these configurations allow significantly new and enhanced multimedia services and systems. In addition, MPEG-4 aims for an advanced functionality, called Adaptive Audio Visual Session (AAVS) or MPEG-J. Adaptive Audio Visual Session (AAVS) (i.e., MPEG-AAVS, MPEG-Java or MPEG-J) requires, in addition to the definition of configurations, a definition of an application programming interface (API) and its organization into Java packages. Also disclosed are concepts leading to definition of such a framework.Type: GrantFiled: September 4, 2007Date of Patent: September 25, 2012Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Publication number: 20120069900Abstract: A quantizer and dequantizer for use in a video coding system that applies non linear, piece-wise linear scaling functions to video information signals based on a value of a variable quantization parameter. The quantizer and dequantizer apply different non linear, piece-wise linear scaling functions to a DC luminance signal, a DC chrominance signal and an AC chrominance signal. A code for reporting updates of the value of the quantization parameter is interpreted to require larger changes when the quantization parameter initially is large and smaller changes when the quantization parameter initially is small.Type: ApplicationFiled: November 30, 2011Publication date: March 22, 2012Applicant: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 8085854Abstract: A quantizer and dequantizer for use in a video coding system that applies non linear, piece-wise linear scaling functions to video information signals based on a value of a variable quantization parameter. The quantizer and dequantizer apply different non linear, piece-wise linear scaling functions to a DC luminance signal, a DC chrominance signal and an AC chrominance signal. A code for reporting updates of the value of the quantization parameter is interpreted to require larger changes when the quantization parameter initially is large and smaller changes when the quantization parameter initially is small.Type: GrantFiled: May 7, 2010Date of Patent: December 27, 2011Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Publication number: 20110268189Abstract: A method and apparatus prioritizing video information during coding and decoding. Video information is received and an element of the video information, such as a visual object, video object layer, video object plane or keyregion, is identified. A priority is assigned to the identified element and the video information is encoded into a bitstream, such as a visual bitstream encoded using the MPEG-4 standard, including an indication of the priority of the element.Type: ApplicationFiled: July 13, 2011Publication date: November 3, 2011Applicant: AT&T Intellectual Properties II, L.P.Inventors: Barin Geoffry HASKELL, Atul PURI, Robert Lewis SCHMIDT
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Patent number: 8046338Abstract: File formats systems and methods are disclosed that provide a framework that integrates concepts, such as objects based audio-visual representation, meta-data and object oriented programming, to achieve a flexible and generic representation of the audiovisual information and the associated methods to operate on the audiovisual information. A system and method are disclosed for storing data processed from presentation data. The data is stored according to a method comprising coding input presentation data by identifying objects from within the presentation data, coding each object individually and organizing the coded data into access layer data units. The access layer data units are stored throughout a plurality of segments, each segment comprising a segment table in a header portion thereof and those access layer data units that are members of the respective segment, there being one entry in the segment table for each access layer data unit therein.Type: GrantFiled: May 29, 2008Date of Patent: October 25, 2011Assignee: AT&T Intellectual Property II, L.P.Inventors: Andrea Basso, Alexandros Eleftheriadis, Hari Kalva, Atul Puri, Robert Lewis Schmidt
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Patent number: 7983499Abstract: A method and apparatus prioritizing video information during coding and decoding. Video information is received and an element of the video information, such as a visual object, video object layer, video object plane or keyregion, is identified. A priority is assigned to the identified element and the video information is encoded into a bitstream, such as a visual bitstream encoded using the MPEG-4 standard, including an indication of the priority of the element.Type: GrantFiled: November 23, 2009Date of Patent: July 19, 2011Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 7974346Abstract: A predictive video coder performs gradient prediction based on previous blocks of image data. For a new block of image data, the prediction determines a horizontal gradient and a vertical gradient from a block diagonally above the new block (vertically above a previous horizontally adjacent block). Based on these gradients, the encoder predicts image information based on image information of either the horizontally adjacent block or a block vertically adjacent to the new block. The encoder determines a residual that is transmitted in an output bitstream. The decoder performs the identical gradient prediction and predicts image information without need for overhead information. The decoder computes the actual information based on the predicted information and the residual from the bitstream.Type: GrantFiled: June 29, 2005Date of Patent: July 5, 2011Assignee: AT&T Intellectual II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 7958532Abstract: Video-coded information is transmitted over a network at a priority level that is determined based on feedback from the network. In an embodiment, the feedback comprises a response to a request for information on whether the network currently has the available capacity to transmit additional high priority traffic. In an embodiment, a candidate base layer frame is transmitted over the network as a base layer frame if permission to send high priority data was granted and is transmitted over the network as an enhancement layer frame if permission to send high priority data was denied. In a further embodiment, the candidate base layer frame is deleted if permission to send high priority data was denied.Type: GrantFiled: June 18, 2001Date of Patent: June 7, 2011Assignee: AT&T Intellectual Property II, L.P.Inventors: Baldine-Brunel Paul, Glenn L. Cash, M. Reha Civanlar, Barin Geoffry Haskell, Paul G. Howard, Atul Puri, Robert Lewis Schmidt
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Publication number: 20110075739Abstract: A predictive video coder performs gradient prediction based on previous blocks of image data. For a new block of image data, the prediction determines a horizontal gradient and a vertical gradient from a block diagonally above the new block (vertically above a previous horizontally adjacent block). Based on these gradients, the encoder predicts image information based on image information of either the horizontally adjacent block or a block vertically adjacent to the new block. The encoder determines a residual that is transmitted in an output bitstream. The decoder performs the identical gradient prediction and predicts image information without need for overhead information. The decoder computes the actual information based on the predicted information and the residual from the bitstream.Type: ApplicationFiled: November 30, 2010Publication date: March 31, 2011Applicant: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 7869502Abstract: A predictive video coder performs gradient prediction based on previous blocks of image data. For a new block of image data, the prediction determines a horizontal gradient and a vertical gradient from a block diagonally above the new block (vertically above a previous horizontally adjacent block). Based on these gradients, the encoder predicts image information based on image information of either the horizontally adjacent block or a block vertically adjacent to the new block. The encoder determines a residual that is transmitted in an output bitstream. The decoder performs the identical gradient prediction and predicts image information without need for overhead information. The decoder computes the actual information based on the predicted information and the residual from the bitstream.Type: GrantFiled: August 31, 2005Date of Patent: January 11, 2011Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Publication number: 20100215097Abstract: A quantizer and dequantizer for use in a video coding system that applies non linear, piece-wise linear scaling functions to video information signals based on a value of a variable quantization parameter. The quantizer and dequantizer apply different non linear, piece-wise linear scaling functions to a DC luminance signal, a DC chrominance signal and an AC chrominance signal. A code for reporting updates of the value of the quantization parameter is interpreted to require larger changes when the quantization parameter initially is large and smaller changes when the quantization parameter initially is small.Type: ApplicationFiled: May 7, 2010Publication date: August 26, 2010Applicant: AT&T Intellectual Property II, L.P., via transfer from AT&T Corp.Inventors: Barin Geoffrey Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 7738555Abstract: A quantizer and dequantizer for use in a video coding system that applies non linear, piece-wise linear scaling functions to video information signals based on a value of a variable quantization parameter. The quantizer and dequantizer apply different non linear, piece-wise linear scaling functions to a DC luminance signal, a DC chrominance signal and an AC chrominance signal. A code for reporting updates of the value of the quantization parameter is interpreted to require larger changes when the quantization parameter initially is large and smaller changes when the quantization parameter initially is small.Type: GrantFiled: June 29, 2005Date of Patent: June 15, 2010Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Publication number: 20100067576Abstract: A method and apparatus prioritizing video information during coding and decoding. Video information is received and an element of the video information, such as a visual object, video object layer, video object plane or keyregion, is identified. A priority is assigned to the identified element and the video information is encoded into a bitstream, such as a visual bitstream encoded using the MPEG-4 standard, including an indication of the priority of the element.Type: ApplicationFiled: November 23, 2009Publication date: March 18, 2010Applicant: AT&T Corp.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 7646809Abstract: A system and method are disclosed for decoding signals of a block of image data. The method comprises receiving a parameter or an index associated with a direction of a plurality of prediction directions and decoding a block of image data utilizing image data predicted from an adjacent block according to direction associated with the parameter. The prediction direction may be at least one of horizontal, vertical or diagonal. A system and method are also disclosed for encoding blocks of image data including a parameter or an index associated with a direction of a plurality of prediction directions.Type: GrantFiled: April 18, 2005Date of Patent: January 12, 2010Assignee: AT&T Intellectual Property II, LP.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 7630570Abstract: A method and apparatus prioritizing video information during coding and decoding. Video information is received and an element of the video information, such as a visual object, video object layer, video object plane or keyregion, is identified. A priority is assigned to the identified element and the video information is encoded into a bitstream, such as a visual bitstream encoded using the MPEG-4 standard, including an indication of the priority of the element. The priority information can then be used when decoding the bitstream to reconstruct the video information.Type: GrantFiled: November 12, 2005Date of Patent: December 8, 2009Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Patent number: 7545863Abstract: A method is provided for decoding a bit stream representing an image that has been encoded The method includes the steps of: performing an entropy decoding of the bit stream to form a plurality of transform coefficients and a plurality of motion vectors; performing an inverse transformation on the plurality of transform coefficients to form a plurality of error blocks; determining a plurality of predicted blocks based on bidirectional motion estimation that employs the motion vectors, wherein the bidirectional motion estimation includes a direct prediction mode and a second prediction mode; and, adding the plurality of error blocks to the plurality of predicted blocks to form the image. The second prediction mode may include forward, backward, and interpolated prediction modes.Type: GrantFiled: February 14, 2008Date of Patent: June 9, 2009Assignee: AT&T Intellectual Property II, L.P.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt
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Publication number: 20090041123Abstract: A video coding system that codes video objects as scalable video object layers. Data of each video object may be segregated into one or more layers. A base layer contains sufficient information to decode a basic representation of the video object. Enhancement layers contain supplementary data regarding the video object that, if decoded, enhance the basic representation obtained from the base layer. The present invention thus provides a coding scheme suitable for use with decoders of varying processing power. A simple decoder may decode only the base layer of video objects to obtain the basic representation. However, more powerful decoders may decode the base layer data of video objects and additional enhancement layer data to obtain improved decoded output. The coding scheme supports enhancement of both the spatial resolution and the temporal resolution of video objects.Type: ApplicationFiled: October 17, 2008Publication date: February 12, 2009Applicant: AT & T Intellectual Property II, L.P. formerly known as AT&T Corp.Inventors: Barin Geoffry Haskell, Atul Puri, Robert Lewis Schmidt