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Luthra, US

Ajay Luthra, San Diego, CA US

Patent application numberDescriptionPublished
20090161697Method and System for Interleaving Video and Data for Transmission over a Network at a Selected Bit Rate - A StatMux system and method are provided for efficiently allocating time slots on the transmission channel between bit streams representing video and bit streams representing data. By providing such a system and method, when a decreased number of data bits need to be transmitted, a decreased number of time slots may be allocated for transmitting the data bits and an increased number of time slots may be allocated for transmitting video bits. When a decreased number of video bits needs to be transmitted, a decreased number of time slots may be allocated for transmitting video bits and an increased number of time slots may be allocated for transmitting data bits.06-25-2009
20100158120Reference Picture Selection for Sub-Pixel Motion Estimation - A video coding system includes a prediction module configured to perform multi-reference picture sub-pixel motion estimation. Reference pictures are selected for the sub-pixel motion estimation based on full-pixel motion estimation. A cost function is used to select the reference pictures from one or more groups of reference pictures for a block in a macroblock. The cost is based on full-pixel motion estimation errors and a predicted motion vector for the block. The selected reference pictures are used for sub-pixel motion estimation to get the final motion vector for each block.06-24-2010
20110085593Macroblock Level Adaptive Frame/Field Coding for Digital Video Content - A method and system of encoding and decoding digital video content. The digital video content comprises a stream of pictures which can each be intra, predicted, or bi-predicted pictures. Each of the pictures comprises macroblocks that can be further divided into smaller blocks. The method entails encoding and decoding each of the smaller blocks in each picture in said stream of pictures in either frame mode or in field mode.04-14-2011
20110150073SCALABLE VIDEO TRANSCODING DEVICE - A transcoding device is configured to transcode a scalable video coded stream to a single layer encoded video stream for a receiving device. The transcoding device includes an interface connecting the receiving device to the transcoding device, and a transcoder. The transcoder receives the scalable video coded stream via the interface from the receiving device in response to the receiving device determining the encoded video stream includes the scalable video coded stream. The transcoder generates a single layer encoded video stream from the scalable video coded stream based on coding parameters describing a single layer encoded video stream to be generated by the transcoder. The transcoding device sends the single layer encoded video stream to the receiving device via the interface.06-23-2011

Patent applications by Ajay Luthra, San Diego, CA US

Ajay K. Luthra, San Diego, CA US

Patent application numberDescriptionPublished
20090110066Method and Apparatus for Selecting a Coding Mode - A method and apparatus for selecting a coding mode for a block of a current picture are disclosed. For example, the method selects a coding mode in accordance with a cost function, for coding the block, wherein the cost function comprises a coding distortion parameter and a number of coding bits parameter, wherein said coding distortion parameter is measured in accordance with at least one of: between a prediction residual and a reconstructed prediction residual, or between a transformed prediction residual and a dequantized transformed prediction residual, wherein the number of coding bits parameter is computed in accordance with at least one of: from a true number of compressed bits resulting from coding said block, directly from a plurality of bins, or directly from a plurality of quantized transform coefficients.04-30-2009
20090129472Method and Apparatus for Performing Motion Estimation - The present invention discloses a system and method for performing motion estimation associated with an encoder, e.g., a H.264/MPEG-4 AVC compliant encoder. For example, the method selects a motion vector centering for a current block in a search area of at least one reference picture. The method calculates a matching cost for each of a plurality of candidate motion vectors derived from the search area, and outputs at least one of the plurality of candidate motion vectors based on the matching cost associated with each of the plurality of candidate motion vectors to a main coding loop.05-21-2009
20110012992SIMULCAST OF STEREOVIEWS FOR 3D TV - A three-dimensional (3D) video encoder includes a first encoder, a second encoder, and a multiplexer. The first encoder is configured to encode a base view to form a first independently compressed video stream associated with video content. The second encoder is configured to encode a nonbase view to form a second independently compressed video stream associated with the video content. The multiplexer is configured to multiplex the first and second independently compressed video streams associated with the video content to form a transport stream. The transport stream is operable to be processed to render a 3D video using the base and nonbase views.01-20-2011
20110026608METHOD OF ENCODING VIDEO CONTENT - In a method of encoding video content, bits of a first view and a second view of a three-dimensional (3D) video content are manipulated to occupy a first slice of video and a second slice of video, wherein a boundary is configured to be formed between the first and second slices. In addition, the bits of each of the first slice and the second slice are encoded separately from each other to form a first independently compressed video slice and a second independently compressed video slice. The first and second independently compressed video slices are then multiplexed to form at least one transport stream operable to be processed to render at least one of two-dimensional (2D) and 3D video.02-03-2011
201101490263D VIDEO TRANSFORMING DEVICE - A 3D video conversion device is operable to convert a first MPEG stream to a second MPEG stream. The 3D video conversion device includes an input module operable to receive a multiple-view stream, a conversion module operable to convert the multiple-view stream. The conversion module includes a decoding module operable to decode the multiple-view stream, a reformatting module operable to generate 3D views from decoded information, and an encoding module operable to re-encode the 3D views to an STB format stream, and an output module operable to output a reformatted stream.06-23-2011
201101759883D VIDEO GRAPHICS OVERLAY - Preparing a three dimensional (3D) video graphical overlay based on a two dimensional (2D) graphical image in a decoded stereoscopic video signal. This includes receiving the 2D graphical image and receiving 3D information associated with the 3D video graphical overlay. This also includes reproducing, using a processor, the 2D graphical image to form a first view graphical image and a second view graphical image in a graphics window. This also includes mapping the first and second view graphical images, using the 3D information, to frames in the 3D video to form a 3D video graphical overlay of a 3D video stream. This also includes blending the 3D video graphical overlay and the 3D video stream.07-21-2011
20110176616FULL RESOLUTION 3D VIDEO WITH 2D BACKWARD COMPATIBLE SIGNAL - Items are used to encode or in encoding a stereoscopic video signal. The signal includes first view frames based on a first view associated with a first eye perspective and second view frames based on a second view associated with a second eye perspective. The encoding includes receiving the stereoscopic video signal and determining the first view frames and the second view frames. The encoding also includes encoding the first view frames based on the first view and encoding the second view frames based on the second view and also the first view. In the encoding, a plurality of the encoded second view frames reference at least one first view frame for predictive coding information. Items are also used to decode the encoded stereoscopic video signal.07-21-2011
20110216164METHOD AND APPARATUS FOR CONVERTING TWO-DIMENSIONAL VIDEO CONTENT FOR INSERTION INTO THREE-DIMENSIONAL VIDEO CONTENT - A method and apparatus is provided that converts video content from a first format type into a second format type so that the video content can be viewed with other video content that has the second video format type. The method includes determining a first format of a first stream of video content (09-08-2011
20110235991MOVING CONTENT BETWEEN SET TOP BOX AND END DEVICES IN HOME - A content moving device which enables providing content stored on a first user device, such as a DVR, in a first format and resolution to be provided to a second user device, such as a portable media player (PMP) in a second format and resolution. The content moving device identifies content on the first user device as candidate content which may be desired by the PMP and receives the candidate content from the DVR. The content moving device transcodes the candidate content at times independent of a request from the PMP for the content. The content moving device may provide a list of available transcoded content to the PMP for selection, and provide selected content to the PMP. The content moving device may also provide information relating to any protection schemes of the content provided to the PMP, such as DRM rights and decryption keys. The content moving device performs the often computationally intense and time consuming transcoding of user content to enable the user to move content between different user devices in a convenient manner.09-29-2011
20110273534Program Guide Graphics and Video in Window for 3DTV - Video data is received in 2D or 3D format from different channels as a user scrolls through an electronic guide. The video data may be displayed in a portion of the on screen display along with graphic and text associated with the EPG data. The received video data may be converted to a suitable format to be displayed with Electronic Program Guide (EPG). The video data may be converted from a 3D to a 2D format to be displayed with the EPG data. The video data may be converted from a 2D format to a 3D format, while the EPG data displays in a 2D format. The video data may be converted from one 3D format to another 3D format for display with the EPG data. The selection of converting the received video data can be based on a display format of a previously viewed channel prior to requesting the EPG to be displayed.11-10-2011
20120079054Automatic Memory Management for a Home Transcoding Device - A content moving device which enables providing content stored on a first user device, such as a DVR, in a first format and resolution to be provided to a second user device, such as a portable media player (PMP) in a second format and resolution. The content moving device identifies content on the first user device as candidate content which may be desired by the PMP and assigns a priority level to the content. The content moving device transcodes the candidate content in order of highest priority first and lowest priority last. The content moving device may also use the priority level to manage deletion of the transcoded content from the storage on the content moving device. The lowest priority level content may be deleted first as storage space is needed.03-29-2012
20120082243Method and Apparatus for Feature Based Video Coding - In a video distribution system, a divider (04-05-2012
20120147157METHOD AND APPARATUS FOR MANAGING 3D VIDEO CONTENT - In a method of managing 3D video stream, 3D video stream is output to a connected display. The connected display displays the 3D video stream after a delay associated with the connected display. A timing offset is determined based on the delay. The timing offset is operable to be used to synchronize shutter operations of at least one shutter glasses with the presentation of the 3D video stream. A shutter control signal based on a frame start indication from the 3D video stream is transmitted. The frame start indication is operable to be used to determine a frame rate of the 3D video stream, and the shutter control signal is operable to be used to maintain synchronization of the shutter operations of the at least one shutter glasses with the presentation of the 3D video stream at the connected display.06-14-2012
20120169843Method and Apparatus for 3DTV Image Adjustment07-05-2012
20120170646METHOD AND APPARATUS FOR SPACIAL SCALABILITY FOR HEVC - In a video distribution system, a divider (07-05-2012

Patent applications by Ajay K. Luthra, San Diego, CA US

Krishan Luthra, Niskayuna, NY US

Patent application numberDescriptionPublished
20100279845PROCESS OF PRODUCING CERAMIC MATRIX COMPOSITES - A process for producing a silicon-containing CMC article that exhibits improved physical, mechanical, and microstructural properties at elevated temperatures exceeding the melting point of silicon. The process entails producing a body containing a ceramic reinforcement material in a solid matrix that comprises solid elemental silicon and/or silicon alloy and a ceramic matrix material. The ceramic matrix composite article is produced by at least partially removing the solid elemental silicon and/or silicon alloy from the solid matrix and optionally reacting at least part of the solid elemental silicon and/or silicon alloy in the solid matrix to form one or more refractory materials. The solid elemental silicon and/or silicon alloy is sufficiently removed from the body to enable the ceramic matrix composite article to structurally and chemically withstand temperatures above 1405° C.11-04-2010

Madan Luthra, Missouri City, TX US

Patent application numberDescriptionPublished
20110275533Micro-RNAs as Markers for Tumor Progression - Disclosed are methods for diagnosing cancer or dysplasia in a sample of tissue, involving testing cells of the sample to assess whether miR-196a expression in cells of the sample is greater than a reference, wherein a greater expression of miR-196a in cells of the sample compared to the reference is indicative of cancer or dysplasia. The cancer or dysplasia may be esophageal cancer or esophageal dysplasia. Also disclosed are method for diagnosing cancer or dysplasia in a sample of tissue, comprising testing cells of the sample to assess whether the expression of ANXA1, KRT5, SPRR2C, or S100A9 in cells of the sample is reduced compared to a reference control, wherein said reduced expression in cells of the sample compared to the reference control is indicative of cancer or dysplasia. Also disclosed are kits and methods involving kits for the diagnosis of cancer or dysplasia.11-10-2011

Maden G. Luthra, Missouri City, TX US

Patent application numberDescriptionPublished
20100216131GENE EXPRESSION PROFILING OF ESOPHAGEAL CARCINOMAS - The present invention generally regards gene expression profiling of esophageal cancers, including localized esophageal cancers. In particular, gene expression for a particular group of genes identifies individuals that are either going to be responsive to cancer therapy, for example chemotherapy and/or radiation, or that are not going to be responsive to cancer therapy. Exemplary genes having such expression profiles include, for example, PERP, S100A2, and SPRR3.08-26-2010

Manev Luthra, Santa Clara, CA US

Patent application numberDescriptionPublished
20110268024DETECTION OF CO-LOCATED INTERFERENCE IN A MULTI-RADIO COEXISTENCE ENVIRONMENT - Unscheduled transmissions of one wireless network device while a collocated wireless network device has control of a communication medium can corrupt packets received by the collocated wireless network device. Interference between the collocated wireless network devices can lead to degradation in performance of either/both the wireless network devices. In a communication system comprising a first wireless network device collocated with a second wireless network device, the first wireless network device can be configured to transmit a coexistence message to the second wireless network device when the first wireless network device transmits a packet without control of the communication medium. On receiving the coexistence message indicating that the first wireless network device transmitted a packet without control of the communication medium, the second wireless network device can discard any packets received at the second wireless network device and can request retransmission of the discarded packets.11-03-2011
20120207139MULTI-COMMUNICATION MODE PACKET ROUTING MECHANISM FOR WIRELESS COMMUNICATION SYSTEMS - The transmission range of a network communication device can be extended by enabling transition between legacy and non-legacy communication protocols. A communication device can receive a packet in a legacy packet format from a host device via a legacy network interface. In response to determining that the packet received via the legacy network interface is to be transmitted using one of a plurality of non-legacy communication protocols, a processing path within the communication device in accordance with which to process the packet for transmission using the non-legacy communication protocol is determined. The packet in the legacy packet format is reformatted to yield a target packet in a non-legacy packet format based, at least in part, on the non-legacy communication protocol. The target packet is provided to the destination network device in accordance with the non-legacy communication protocol.08-16-2012

Rajyalakshmi Luthra, Missouri City, TX US

Patent application numberDescriptionPublished
20100216131GENE EXPRESSION PROFILING OF ESOPHAGEAL CARCINOMAS - The present invention generally regards gene expression profiling of esophageal cancers, including localized esophageal cancers. In particular, gene expression for a particular group of genes identifies individuals that are either going to be responsive to cancer therapy, for example chemotherapy and/or radiation, or that are not going to be responsive to cancer therapy. Exemplary genes having such expression profiles include, for example, PERP, S100A2, and SPRR3.08-26-2010
20110275533Micro-RNAs as Markers for Tumor Progression - Disclosed are methods for diagnosing cancer or dysplasia in a sample of tissue, involving testing cells of the sample to assess whether miR-196a expression in cells of the sample is greater than a reference, wherein a greater expression of miR-196a in cells of the sample compared to the reference is indicative of cancer or dysplasia. The cancer or dysplasia may be esophageal cancer or esophageal dysplasia. Also disclosed are method for diagnosing cancer or dysplasia in a sample of tissue, comprising testing cells of the sample to assess whether the expression of ANXA1, KRT5, SPRR2C, or S100A9 in cells of the sample is reduced compared to a reference control, wherein said reduced expression in cells of the sample compared to the reference control is indicative of cancer or dysplasia. Also disclosed are kits and methods involving kits for the diagnosis of cancer or dysplasia.11-10-2011
20120128651ACUTE LYMPHOBLASTIC LEUKEMIA (ALL) BIOMARKERS - The present invention concerns the use of biomarkers for acute lymphoblastic leukemia (ALL) to prognose or evaluate a patient with ALL who is Ph+. Methods and compositions are provided that concern these ALL biomarkers. In specific embodiments, methods for determining whether an ALL patient should be treated with standard chemotherapy are provided.05-24-2012

Patent applications by Rajyalakshmi Luthra, Missouri City, TX US

Suman Luthra, Groton, IN US

Patent application numberDescriptionPublished
20120302550SALTS AND POLYMORPHS OF 8-FLUORO-2--1,3,4,5-TETRAHYDRO-6H-AZEPINO[5,4,3-CD]INDOL-6-ONE - The present invention relates to novel polymorphic forms of 8-fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-11-29-2012