Patents by Inventor Vijayalakshmi R. Raveendran
Vijayalakshmi R. Raveendran 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: 9582239Abstract: As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device. The input data received at the wireless sink device can have associated coordinate information that is scaled or normalized by either the wireless sink device or the wireless source device.Type: GrantFiled: January 5, 2012Date of Patent: February 28, 2017Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Xiaolong Huang, Xiaodong Wang, Fawad Shaukat
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Publication number: 20170055030Abstract: As part of a communication session, a wireless source device can transmit video component data and metadata to a wireless sink device. The wireless source device can intercept the video component data prior to the video component data being rendered by the wireless source device, and the wireless sink device can generate a frame of video data based on the video component data and the metadata.Type: ApplicationFiled: October 14, 2016Publication date: February 23, 2017Applicant: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Fawad Shaukat, Xiaodong Wang
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Patent number: 9565467Abstract: Techniques for managing power consumption and computational load on a processor during video processing and decoding are provided. One representative embodiment discloses a method of processing a data stream that includes video data. According to the method, one or more protocols used to create the data stream are identified. The various parsing and decoding operations required by the protocol are then identified and managed based on the available electrical power or available processing power. Another representative embodiment discloses a method of processing a data stream that includes video data. According to the method, one or more protocols used to create the data stream are identified. The various parsing and decoding operations required by the protocol are then identified and managed based on a visual quality of the video or a quality of experience.Type: GrantFiled: November 5, 2011Date of Patent: February 7, 2017Assignee: QUALCOMM IncorporatedInventor: Vijayalakshmi R. Raveendran
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Patent number: 9544048Abstract: Various aspects of the present disclosure enable a persistent docking procedure that, once a persistent docking environment has been established, can simplify the future establishment of a docking environment between the dockee and docking host. Other aspects, embodiments, and features are also claimed and described.Type: GrantFiled: February 6, 2013Date of Patent: January 10, 2017Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Xiaolong Huang
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Patent number: 9525998Abstract: Techniques of this disclosure are generally directed to a method of transmitting content of a first wireless computing device to a second wireless computing device. A first wireless computing device may initiate a WI-FI display (WFD) connection, transmit data from the first wireless computing device via the WFD connection to the second wireless computing device, execute a media sharing application that enables the first wireless computing device to share a media item of a playlist with a wireless client computing device, transmit information that describes the media item of the playlist to the wireless client computing device, wherein transmitting the information that describes the media item causes the second wireless computing device to determine if the wireless client computing device is capable of outputting the media item, and transmit the media item to the wireless client computing device.Type: GrantFiled: September 7, 2012Date of Patent: December 20, 2016Assignee: QUALCOMM IncorporatedInventors: Soham V. Sheth, Vijayalakshmi R. Raveendran, Fawad Shaukat
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Patent number: 9521411Abstract: An Encoder Assisted Frame Rate Up Conversion (EA-FRUC) system that utilizes video coding and pre-processing operations at the video encoder to exploit the FRUC processing that will occur in the decoder in order to improve compression efficiency and reconstructed video quality is disclosed. One operation of the EA-FRUC system involves determining whether to encode a frame in a sequence of frames of a video content by determining a spatial activity in a frame of the sequence of frames; determining a temporal activity in the frame; determining a spatio-temporal activity in the frame based on the determined spatial activity and the determined temporal activity; determining a level of a redundancy in the source frame based on at least one of the determined spatial activity, the determined temporal activity, and the determined spatio-temporal activity; and, encoding the non-redundant information in the frame if the determined redundancy is within predetermined thresholds.Type: GrantFiled: February 6, 2013Date of Patent: December 13, 2016Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Fang Shi, Gordon Kent Walker
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Patent number: 9503771Abstract: As part of a communication session, a wireless source device can transmit video component data and metadata to a wireless sink device. The wireless source device can intercept the video component data prior to the video component data being rendered by the wireless source device, and the wireless sink device can generate a frame of video data based on the video component data and the metadata.Type: GrantFiled: February 2, 2012Date of Patent: November 22, 2016Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Fawad Shaukat, Xiaodong Wang
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Patent number: 9491505Abstract: This disclosure describes techniques to improve a user experience in a Wireless Display (WD) system. The WD system includes a source device that provides media data to one or more sink devices. The techniques are directed toward reducing end-to-end latency in the WD system while improving video playback quality at the sink devices. More specifically, the techniques include low latency screen capture and buffering at the source device. For example, a processing pipeline of the source device may be configured to include minimum-size buffers between processing steps to reduce latency. The techniques include buffering a most recent frame update captured from the media data in the minimum-size buffers and dropping older frame updates when the minimum-size buffers are full. In addition, the processing pipeline may be configured to use hardware acceleration to retrieve the frame updates from the buffers for processing.Type: GrantFiled: October 2, 2012Date of Patent: November 8, 2016Assignee: QUALCOMM IncorporatedInventors: Xiaodong Wang, Fawad Shaukat, Vijayalakshmi R. Raveendran
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Patent number: 9467659Abstract: A method of processing a sequence of frames of multimedia data is presented. The method provides for progressively refreshing the image data. The method includes dynamically selecting portions of frames of the sequence with progressively increasing area to refresh, and excluding non-refreshed areas as potential reference data for other frames.Type: GrantFiled: September 25, 2006Date of Patent: October 11, 2016Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Phanikumar Bhamidipati, Tao Tian
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Patent number: 9462326Abstract: Techniques for power and computational load management in video processing and decoding are provided. In one configuration, an apparatus comprising a processor having a set of instructions operative to extract and compile information from a data stream having video is provided. The processor is operative to prioritize a set of parsing or decoding operations to process the data stream referred to as power management (PM) sequences based on the information and calculate projections of at least one of power and computational loading for each of the prioritized PM sequences.Type: GrantFiled: November 5, 2011Date of Patent: October 4, 2016Assignee: QUALCOMM IncorporatedInventor: Vijayalakshmi R. Raveendran
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Patent number: 9444887Abstract: A method of wireless communication includes aggregating data in a streaming communication session from a source node in a destination aggregator node, wherein data in the streaming session is transported over multiple paths from the source node to the aggregator node via a multipath overlay network discovered by the source node and the aggregator node.Type: GrantFiled: May 26, 2011Date of Patent: September 13, 2016Assignee: QUALCOMM IncorporatedInventors: Xiaolong Huang, Vijayalakshmi R. Raveendran, Xun Luo
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Patent number: 9426184Abstract: In one example, a method includes sending a request to a wireless docking host to select one or more peripheral functions available via the wireless docking host in accordance with authentication and association information associated with a docking session with the wireless docking host. The method further includes sending a request to the wireless docking host to establish one or more payload connections with the wireless docking host, wherein the one or more payload connections are configured to communicate data via the wireless docking host for the selected one or more peripheral functions.Type: GrantFiled: March 11, 2013Date of Patent: August 23, 2016Assignee: QUALCOMM IncorporatedInventors: Xiaolong Huang, Vijayalakshmi R. Raveendran, Xiaodong Wang, Hongyu Jiang
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Patent number: 9413803Abstract: As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device.Type: GrantFiled: January 5, 2012Date of Patent: August 9, 2016Assignee: QUALCOMM IncorporatedInventors: Xiaolong Huang, Vijayalakshmi R. Raveendran, Xiaodong Wang, Fawad Shaukat
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Patent number: 9351028Abstract: An apparatus, system, method, and computer program product for streaming 3D content from a wireless device to a remote 3D display for the viewing of the 3D content on a larger screen. In some aspects, a wireless streaming server may encode 3D motion picture content in a certain format, where each image frame includes a 2D view concatenated side-by-side with a complementary frame of depth information. The combination of the 2D view and the depth information are capable of being processed by a client display to generate a stereoscopic image representing a 3D view.Type: GrantFiled: July 14, 2011Date of Patent: May 24, 2016Assignee: QUALCOMM IncorporatedInventors: Soham V. Sheth, Vijayalakshmi R. Raveendran, Judit Martinez Bauza, PhaniKumar K. Bhamidipati, Xun Luo
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Patent number: 9319737Abstract: White space devices are operable to communicate information over white space and, more specifically, to quiet a transmitter to enable sensing signals in the white space. A method for inconspicuous quieting of a transmitter in a white space communication device modifies a transport stream for transmission by the transmitter of the white space device to provide a null window of time. The null window does not contain essential information. At least a portion of the modified transport stream is transmitted by the transmitter of the white space device. The transmitter is quieted during the null window, and white space sensing is performed during the null window.Type: GrantFiled: January 4, 2011Date of Patent: April 19, 2016Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, PhaniKumar K. Bhamidipati, James T. Determan
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Patent number: 9258519Abstract: An Encoder Assisted Frame Rate Up Conversion (EA-FRUC) system that utilizes various motion models, such as affine models, in addition to video coding and pre-processing operations at the video encoder to exploit the FRUC processing that will occur in the decoder in order to improve the modeling of moving objects, compression efficiency and reconstructed video quality. Furthermore, objects are identified in a way that reduces the amount of information necessary for encoding to render the objects on the decoder device.Type: GrantFiled: September 25, 2006Date of Patent: February 9, 2016Assignee: QUALCOMM IncorporatedInventors: Fang Shi, Seyfullah Halit Oguz, Sumeet Singh Sethi, Vijayalakshmi R. Raveendran
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Patent number: 9201826Abstract: An extensible hub is disclosed for providing multi-hop wireless communication among universal serial bus (USB) devices, for example, utilizing a WiGig Serial Extension (WSE) air interface. The extensible hub may include a device protocol adaptation layer (PAL), as well as a host PAL, and further a bridge for providing a data flow path between the device and host PALs. The bridge may be configured to distinguish between request messages and response messages in accordance with a header on those messages. Further, the extensible hub may include virtual ports and may map device handles and endpoint handles to provide for routing of messages to the correct downstream devices in a multi-hop network tree.Type: GrantFiled: November 29, 2012Date of Patent: December 1, 2015Assignee: QUALCOMM IncorporatedInventors: Xiaolong Huang, Xiaodong Wang, Vijayalakshmi R. Raveendran
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Patent number: 9197912Abstract: An apparatus and method for processing multimedia data, such as, for example, video data, audio data, or both video and audio data for encoding utilizing a determined content classification is claimed. Processing the multimedia data includes determining complexity of multimedia data, classifying the multimedia data based on the determined complexity, and, determining a bit rate for encoding the multimedia data based on its classification. The complexity can include a spatial complexity component and a temporal complexity component of the multimedia data. The multimedia data is classified using content classifications, which are based on a visual quality value for viewing multimedia data, using the spatial complexity, the temporal complexity, or both the spatial complexity and temporal complexity.Type: GrantFiled: March 10, 2006Date of Patent: November 24, 2015Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Phanikumar Bhamidipati, Gordon Kent Walker
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Patent number: 9166633Abstract: Information is communicated from a host device to a receiving device via white space. A white space device is interfaced with the host device. The white space device has at least one port configured to communicatively interface with a host device to receive multimedia content from the host device. The white space device also optionally has a television band engine configured to encode a transport stream containing at least a portion of the multimedia content received from the host device. A transmitter is configured to transmit the transport stream via white space.Type: GrantFiled: January 14, 2011Date of Patent: October 20, 2015Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Yu A. Wang
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Patent number: 9167296Abstract: This disclosure describes techniques to improve a user experience in a Wireless Display (WD) system. The WD system includes a source device that provides media data to one or more sink devices. The techniques are directed toward reducing end-to-end latency in the WD system while improving video playback quality at the sink devices. More specifically, the techniques include customized playback at the sink devices based on the type of media data received from the source device. If the media data only includes video data and does not include audio data, a processing pipeline of the sink device is configured to render the video data without waiting to synchronize with non-existent audio data. If the media data includes both video data and audio data, an audio rendering start-up timer is reduced and the processing pipeline renders synchronized audio and video data according to the reduced start-up timer.Type: GrantFiled: October 2, 2012Date of Patent: October 20, 2015Assignee: QUALCOMM IncorporatedInventors: Xiaodong Wang, Fawad Shaukat, Vijayalakshmi R. Raveendran