Patents Assigned to Qualcomm
  • Patent number: 9923597
    Abstract: Techniques for mitigating interference in a wireless communication system are described. In an aspect, pertinent transmission parameters for a served UE may be sent to at least one interfered UE to support interference mitigation. In one design, information for at least one transmission parameter for a data transmission sent by a first cell to a first UE may be transmitted to at least one UE served by a second cell to enable the at least one UE to perform interference mitigation for the data transmission sent by the first cell to the first UE. The information may be transmitted by either the first cell or the second cell. In another aspect, a cell may send transmission parameters for a UE via a pilot. In yet another aspect, scrambling may be performed by a cell at symbol level to enable an interfered UE to distinguish between modulation symbols of desired and interfering transmissions.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Alexei Y. Gorokhov, Avneesh Agrawal
  • Patent number: 9924471
    Abstract: Methods and apparatuses are provided for facilitating dynamic measurement power offset adjustments for use in reporting channel quality feedback. A user equipment may generate and send a plurality of channel quality indicator (CQI) values to a base station. The base station determines whether at least some of the received CQI values are outside of an upper or lower threshold value. If at least some of the received CQI values are outside the upper or lower threshold value, the base station can transmit an adjusted measurement power offset to the user equipment. On receipt of the adjusted measurement power offset, the user equipment generates subsequent CQI values using the adjusted measurement power offset.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Andrea Garavaglia, Long Duan, Jochen Hoidis, Amer Catovic
  • Patent number: 9924175
    Abstract: Techniques are described for palette-based video coding. In palette-based coding, a video coder may form a so-called “palette” as a table of colors for representing video data of a given block of video data. Rather than coding actual pixel values or their residuals for the given block, the video coder may code index values for one or more of the pixels. The index values map the pixels to entries in the palette representing the colors of the pixels. Techniques are described for determining the application of deblocking filtering for pixels of palette coded blocks at a video encoder or a video decoder. In addition, techniques are described for determining quantization parameter (QP) values and delta QP values used to quantize escape pixel values of palette coded blocks at the video encoder or the video decoder.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Pu, Joel Sole Rojals, Rajan Laxman Joshi, Marta Karczewicz
  • Patent number: 9924436
    Abstract: Aspects describe communications environments in which femtocell capability is provided to devices within the communications network. A non-femto enabled device and/or a femto enabled device can communicate with a femto enabled device in the same geographical area for femto-enabled peer-to-peer communication. Two non-femto enabled devices can be provided femto functionality through utilization of a femto enabled device, which operates as a hub between the two devices. Other aspects relate to enhanced position determination, adaptive coverage enhancement, local mobile networks, open access femtocells without a backhaul, and local broadcast of media though utilization of femto enabled devices.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Matthew S. Grob, Mehmet Yavuz, Sanjiv Nanda
  • Patent number: 9921993
    Abstract: Memory circuit configuration schemes on multi-drop buses are disclosed. In aspects disclosed herein, an on-die mapping logic is provided in a memory circuit. A memory controller communicates with the on-die mapping logic over a multi-drop bus. The on-die mapping logic is configured to receive a predetermined on-die termination (ODT) value from the memory controller prior to being accessed. In response to receiving the predetermined ODT value, the memory circuit sets on-die termination to the predetermined ODT value and instructs an on-die reference signal generator to generate a predetermined reference signal associated with the predetermined ODT value. The predetermined reference signal provides an optimal reference voltage for implementing a desired equalization setting at the memory circuit, thus aiding in preserving signal integrity. Such improved signal integrity reduces errors in accessing the memory circuit, thus leading to improved efficiency and data throughput on the multi-drop bus.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventor: Timothy Mowry Hollis
  • Patent number: 9923524
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for power amplifier control. A power amplifier network includes a first path comprising a first power amplifier. The power amplifier network further includes a second path comprising a second power amplifier. The power amplifier network further includes a common input path to both the first path and the second path. The power amplifier network further includes a first power control network for controlling a first signal applied to the first power amplifier. The power amplifier network further includes a second power control network for controlling a second signal applied to the second power amplifier, wherein the first power control network is different from the second power control network.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Nicholas Michael Carbone, Jeremy Darren Dunworth, Hyunchul Park
  • Patent number: 9924443
    Abstract: Methods and apparatus are disclosed for configuring an access mode of a femtocell. The method includes determining whether a target channel is being used by a macrocell. The method includes, in response to the target channel being used by the macrocell, configuring the access mode to a closed access mode. The method includes in response to the target channel not being used by the macrocell, configuring the access mode to an open or hybrid access mode.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Peerapol Tinnakornsrisuphap, Damanjit Singh, Mehmet Yavuz, Yeliz Tokgoz
  • Patent number: 9921632
    Abstract: Provided is a method for pausing activities in an internet browser in which a plurality of webpages are open, at least one of the webpages being a background webpage relative to at least one other of the webpages. The method may comprise executing, while the plurality of webpages are open, software scripts on the background webpage. The method may then include analyzing a Document Object Model (DOM) and a rendering tree of a background webpage to discover what software scripts the background webpage runs while in the background, and determining whether the background webpage provides title bar updates. The method may also include periodically pausing, by a background activity suspension component, the execution of the software scripts for a pause duration to conserve power or processing resources, and adjusting the pause duration to be longer or shorter based on characteristics of the software scripts that run on the background webpage.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Shyama Prasad Mondal, Kevin A. Hart, Kulanthaivel Palanichamy, Devdeep Choudhury
  • Patent number: 9923792
    Abstract: Disclosed are systems, methods and devices for obtaining round trip time measurements for use in location based services. In particular implementations, a fine timing measurement request message wirelessly transmitted by a first transceiver device to a second transceiver device may permit additional processing features in computing or applying a signal round trip time measurement. Such a signal round trip time measurement may be used in positioning operations.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Carlos Horacio Aldana, Sandip Homchaudhuri, Xin He, Xiaoxin Zhang, Ashish Kumar Shukla
  • Patent number: 9921981
    Abstract: A master device is provided which is coupled to a shared single line interrupt request (IRQ) bus and a control data bus. The master device group slave devices coupled to the shared single line IRQ bus into one or more groups, where each group is associated with a different IRQ signal. The master device then monitors the IRQ bus to ascertain when an IRQ signal is asserted by at least one slave device. The master device then identifies a group to with which the IRQ signal is associated. The slave devices for the identified group are then scanned or queried by the master device to ascertain which slave device asserted the IRQ signal on the IRQ bus. Each group uses a distinguishable IRQ signal to allow the master device to ascertain which group to query or scan.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Shoichiro Sengoku, Richard Dominic Wietfeldt, George Alan Wiley
  • Patent number: 9924509
    Abstract: Certain aspects of the present disclosure relate to techniques for configuring an adaptive frame structure for wireless communications systems using unlicensed radio frequency spectrum. A base station (BS) may determine whether another device is transmitting on a channel in the unlicensed radio frequency spectrum or one or more other network conditions pertaining to the channel, determine a frame structure from a plurality of frame structures used for data communications based at least in part on the one or more network conditions, wherein each of the plurality of frame structures has a different frame duration, and communicate with a user equipment (UE) using the determined frame structure. A UE may determine a frame structure from a plurality of frame structures used for data communications, wherein each of the plurality of frame structures has a different frame duration, and communicate with a BS using the determined frame structure.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Hao Xu, Peter Gaal, Wanshi Chen, Tingfang Ji, Durga Prasad Malladi, Yongbin Wei, Naga Bhushan, Aleksandar Damnjanovic, Tao Luo
  • Patent number: 9923611
    Abstract: Systems and methods are provided for enhancing signal quality at receivers in a wireless network. In one embodiment, an antenna is selected from a subset of antennas based on a signal quality parameter such as received signal power or signal-to-noise ratio (SNR). In another embodiment, multiple antennas are applied to independent signal processing paths for the respective antennas where output from the paths is then combined to enhance overall signal quality at the receiver.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Fuyun Ling, Linbo Li, Ashok Mantravadi
  • Patent number: 9921688
    Abstract: An interactive display, including a cover glass having a front surface that includes a viewing area provides an input/output (I/O) interface for a user of an electronic device. An arrangement includes a processor, a light source, and a camera disposed outside the periphery of the viewing area coplanar with or behind the cover glass. The camera receives scattered light resulting from interaction, with an object, of light outputted from the interactive display, the outputted light being received by the cover glass from the object and directed toward the camera. The processor determines, from image data output by the camera, an azimuthal angle of the object with respect to an optical axis of the camera and/or a distance of the object from the camera.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: John Michael Wyrwas, Russell Wayne Gruhlke, Khurshid Syed Alam, Kalin Mitkov Atanassov, Vikas Ramachandra, Hasib Ahmed Siddiqui, James Wilson Nash, Robert Mitchell Kleiman, Albrecht Johannes Lindner, Evgeni Petrovich Gousev
  • Patent number: 9923406
    Abstract: One innovation includes a system for reducing magnetic flux of a wireless charging field in a wireless power charging system. The system comprises a wireless power transmitter configured to generate the wireless charging field, the field comprising the magnetic flux and a collector comprising a ferromagnetic material and configured to reduce the magnetic flux. The collector is positioned between a first distance and a second distance at a third distance from the transmitter. The collector is configured to reduce the magnetic flux at a first level at the first distance, at a second level at the second distance, and at a third level at the third distance, the third level greater than each of the first and second levels.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Leandro Percebon, Michael Werner, Daniel Kuerschner, Wojciech Chlebosz
  • Patent number: 9923777
    Abstract: Methods, devices, and computer program products for transmitting and receiving discovery and paging messages in a wireless communication device are described herein. In one aspect, a wireless apparatus operable in a wireless communication system includes a discovery engine configured to communicate with a wireless network based on a profile, the profile having defined use parameters, the discovery engine being configured to receive an input from an application indicating a selection of a profile, the discovery engine further configured to receive one or more attributes from the application and configure the profile using the one or more attributes, the attributes containing information to configure the profile to perform certain functions as defined by the application.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM, Incorporation
    Inventors: Santosh Paul Abraham, George Cherian
  • Patent number: 9921408
    Abstract: An embodiment is directed to an optical element arrangement including at least one optical element. A first optical element includes a fiber and a curved surface. The fiber emits light beams during oscillation at different angular positions relative to a system axis of the first optical element. The curved surface includes an array of lenslets. Each of the lenslets in the array of lenslets is configured to receive light beams from the fiber that are emitted within a particular range of the first curved surface and to collimate the light beams received by the lenslet at a lenslet-specific field angle relative to the system axis. In other embodiments, one or more additional optical elements with respective fibers can be deployed as part of the optical element arrangement, and any of the optical elements in the optical element arrangement may include multiple curved surfaces with respective lenslet arrays.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventor: Russell Gruhlke
  • Patent number: 9923822
    Abstract: A method for wireless communication is provided. The method comprises transmitting a first wireless message comprising a request for a first user terminal to transmit uplink data and an indication of at least one requested operational parameter. The method also comprises receiving a second wireless message from an access point in response to the first wireless message, the second wireless message indicating whether a plurality of user terminals including the first user terminal is selected to transmit uplink data, the second wireless message indicating at least one operational parameter for transmission of uplink data based on the at least one requested operational parameter.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Patent number: 9924102
    Abstract: Techniques for managing applications associated with a mobile device are provided. The techniques disclosed herein include techniques for obtaining an image of an object in the view of a camera associated with a mobile device, identifying the object in the image based on attributes of the object extracted from the image, and determining whether one or more applications are associated with the object. If there are one or more applications associated with the real-world object, an application associated with the object can be automatically launched on the mobile device. The association between a real-world object and an application may be identified by a visual indicator, such as an icon, symbol, or other markings on the object that indicates that the object is associated with one or more applications.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Gervautz, Gerald V. Wright, Jr., Roy Lawrence Ashok Inigo
  • Patent number: 9921909
    Abstract: Systems, methods, and computer programs are disclosed for providing error detection or correction with flash cell mapping. One embodiment is a method comprising generating raw page data for a physical page in a main array of a flash memory device. The raw page data comprises less than a capacity of the physical page generated using a non-power-of-two flash cell mapping. One or more parity bits are generated for the raw page data using an error detection or correction scheme. The method stores the raw page data and the one or more parity bits in the physical page in the main array.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Richard Alan Stewart, Dexter Tamio Chun
  • Patent number: 9924191
    Abstract: A video coder is configured to apply a separable bilinear interpolation filter when determining reference blocks as part of advanced residual prediction. Particularly, the video coder may determine, based on a motion vector of a current block in a current picture of video data, a location of a first reference block in a first reference picture. The video coder may also determine a location of a second reference block in a second reference picture. The video coder may apply a separable bilinear interpolation filter to samples of the second reference picture to determine samples of the second reference block. The video coder may apply the separable bilinear interpolation filter to samples of a third reference picture to determine samples of a third reference block. Each respective sample of a predictive block may be equal to a respective sample of the first reference block plus a respective residual predictor sample.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ying Chen, Li Zhang