Patents by Inventor Dong Zhou

Dong Zhou 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).

  • Patent number: 9578516
    Abstract: Disclose is a radio system and a spectrum resource reconfiguration method thereof. The method comprises: a Reconfigurable Base Station (RBS) divides subordinate nodes into groups according to attributes of the subordinate nodes, and sends a reconfiguration command to a subordinate node in a designated group, and the RBS and the subordinate node execute reconfiguration of spectrum resources according to the reconfiguration command; or, the RBS executes reconfiguration of spectrum resources according to the reconfiguration command; and a subordinate User Equipment (UE) accessing to a reconfigured RBS after interruption. By means of the present disclosure, the reconfiguration of spectrum resources of a cognitive radio system can be realized.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: February 21, 2017
    Assignee: ZTE CORPORATION
    Inventors: Xing Liu, Yan Li, Bin Wang, Dong Zhou, Ting Miao
  • Patent number: 9538081
    Abstract: Depth information can be used to assist with image processing functionality, such as image stabilization and blur reduction. In at least some embodiments, depth information obtained from stereo imaging or distance sensing, for example, can be used to determine a foreground object and background object(s) for an image or frame of video. The foreground object then can be located in later frames of video or subsequent images. Small offsets of the foreground object can be determined, and the offset accounted for by adjusting the subsequent frames or images. Such an approach provides image stabilization for at least a foreground object, while providing simplified processing and reduce power consumption. Similarly processes can be used to reduce blur for an identified foreground object in a series of images, where the blur of the identified object is analyzed.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 3, 2017
    Assignee: Amazon Technologies, Inc.
    Inventor: Dong Zhou
  • Publication number: 20160339124
    Abstract: Disclosed arc PARP-1 inhibitors, which can be 18P-labeled for use as tracers in positron emission tomographic (PET) imaging. Further disclosed are methods of synthesis. Of the compounds synthesized, 2-[p-(2-Fluoroethoxy)phenyl]-1,3,10-triazatricyclo[6.4.1.04,13]trideca-2,4(13),5,7-tetraen-9-one (12) had the highest inhibition potency for PARP-1 (IC50=6.3 nM). Synthesis of [18F]-12 is disclosed under conventional conditions in high specific activity with 40-50% decay-corrected yield, MicroPET imaging using [18F]-12 in MDA-MB-436 tumor-bearing mice demonstrated accumulation of [18F]-12 in a tumor. Binding, can be blocked by olaparib. The compounds have utility for tumor imaging.
    Type: Application
    Filed: July 5, 2016
    Publication date: November 24, 2016
    Inventors: Robert MACH, Wenhua CHU, Dong ZHOU, Loren MICHEL, Delphine CHEN
  • Patent number: 9471154
    Abstract: A computing device can obtain information about how the device is held, moved, and/or used by a hand of a user holding the device. The information can be obtained utilizing one or more sensors of the device independently or working in conjunction. For example, an orientation sensor can determine whether a left hand or a right hand is likely rotating, tilting, and/or moving, and thus holding, the device. In another example, a camera and/or a hover sensor can obtain information about a finger position of the user's hand to determine whether the hand is likely a left hand or a right hand. In a further example, a touch sensor can determine a shape of an imprint of a portion of the user's hand to determine which hand is likely holding the device. Based on which hand is holding the device, the device can improve one or more computing tasks.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 18, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Timothy Thomas Gray, Dong Zhou, Kenneth Mark Karakotsios, Jennifer Silva
  • Publication number: 20160241474
    Abstract: Technologies for modular forwarding table scalability of a software cluster switch includes a plurality of computing nodes. Each of the plurality of computing nodes includes a global partition table (GPT) to determine an egress computing node for a network packet received at an ingress computing node of the software cluster switch based on a flow identifier of the network packet. The GPT includes a set mapping index that corresponds to a result of a hash function applied to the flow identifier and a hash function index that identifies a hash function of a hash function family whose output results in a node identifier that corresponds to the egress computing node to which the ingress computing node forwards the network packet. Other embodiments are described herein and claimed.
    Type: Application
    Filed: June 25, 2015
    Publication date: August 18, 2016
    Inventors: Ren Wang, Dong Zhou, Christian Maciocco, Sameh Gobriel, Tsung-Yuan C. Tai
  • Publication number: 20160241475
    Abstract: Technologies for supporting concurrency of a flow lookup table at a network device. The flow lookup table includes a plurality of candidate buckets that each includes one or more entries. The network device includes a flow lookup table write module configured to perform a displacement operation of a key/value pair to move the key/value pair from one bucket to another bucket via an atomic instruction and increment a version counter associated with the buckets affected by the displacement operation. The network device additionally includes a flow lookup table read module to check the version counters during a lookup operation on the flow lookup table to determine whether a displacement operation is affecting the presently read value of the buckets. Other embodiments are described herein and claimed.
    Type: Application
    Filed: June 25, 2015
    Publication date: August 18, 2016
    Inventors: Ren Wang, Dong Zhou, Bruce Richardson, George W. Kennedy, Christian Maciocco, Sameh Gobriel, Tsung-Yuan C. Tai
  • Patent number: 9400575
    Abstract: A user can use a finger, or other such object, to provide input to a computing device. The finger does not have to contact the device, but can be positioned and/or oriented in such a way that the device can determine an input that the user is attempting to provide, such as an element or icon that the user is intended to select. One or more cameras can capture image information, which can be analyzed to attempt to determine the location and/or orientation of the finger. If the finger is at least partially outside a field of view of the camera(s), the device can use a sensor (e.g., EMF) to attempt to determine a location of at least a portion of the finger, which can be used with the image information to determine the location and/or orientation of the finger. Other estimation processes can be used as well.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: July 26, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Kenneth M. Karakotsios, Isaac S. Noble, Dong Zhou
  • Publication number: 20160209930
    Abstract: Approaches are described which enable a computing device (e.g., mobile phone, tablet computer) to display alternate views or layers of information within a window on the display screen when a user's finger (or other object) is detected to be within a particular range of the display screen of the device. For example, a device displaying a road map view on the display screen may detect a user's finger near the screen and, in response to detecting the finger, render a small window that shows a portion of a satellite view of the map proximate to the location of the user's finger. As the user's finger moves laterally above the screen, the window can follow the location of the user's finger and display the satellite views of the various portions of the map over which the user's finger passes.
    Type: Application
    Filed: February 15, 2016
    Publication date: July 21, 2016
    Inventors: Matthew Paul Bell, Dong Zhou, Guenael Thomas Strutt, Isaac Scott Noble, Stephen Michael Polansky, Jason Robert Weber
  • Patent number: 9379866
    Abstract: The disclosure provides a method for transmitting Cognitive Pilot Channel (CPC) information, a radio access method and system based on CPC information, wherein the method for transmitting CPC information includes: dividing a CPC into a primary CPC for transmitting primary CPC information and a secondary CPC for transmitting secondary CPC information; loading the primary CPC information periodically into fixed physical resources, and sending the primary CPC information to a user equipment; after a base station receives a preset triggering event, loading the secondary CPC information into variable physical resources, and sending the secondary CPC information to the user equipment.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: June 28, 2016
    Assignee: ZTE CORPORATION
    Inventors: Ting Miao, Feng Li, Yan Li, Xing Liu, Dong Zhou
  • Patent number: 9377860
    Abstract: Approaches are described for providing input to a portable computing device, such as a mobile phone. A user's hand can be detected based on data (e.g., one or more images) obtained by at least one sensor of the device, such as camera, and the images can be analyzed to locate the hand of the user. As part of the location computation, the device can determine a motion being performed by the hand of the user, and the device can determine a gesture corresponding to the motion. In the situation where the device is controlling a media player capable of playing media content, the gesture can be interpreted by the device to cause the device to, e.g., pause a media track or perform another function with respect to the media content being presented via the device.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: June 28, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Jason Robert Weber, Matthew Paul Bell, Isaac Scott Noble, Guenael Thomas Strutt, Stephen Michael Polansky, Dong Zhou
  • Patent number: 9345002
    Abstract: The present disclosure discloses a dynamic spectrum allocation method and device based on channel management. The method comprises the following steps: a network node generates a channel set according to an available channel list and channel classification information, and maintains and updates the channel set; and the network node selects a spectrum from the channel set and allocates the spectrum. The device comprises: a channel set generation module configured to generate a channel set according to an available channel list and channel classification information and maintain and update the channel set; and a spectrum allocation module configured to select a spectrum from the channel set and allocate the spectrum. The present disclosure can reduce the delay in the spectrum resource reconfiguration of a CR system, improves the overall performance of spectrum resource reconfiguration and increases the utilization efficiency of a spectrum.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: May 17, 2016
    Assignee: ZTE Corporation
    Inventors: Ting Miao, Yan Li, Xing Liu, Bin Wang, Dong Zhou
  • Patent number: 9288817
    Abstract: The present invention discloses a method and system for coordinated scheduling based on cell priority, which is applied to the system using coordinated multiple point (CoMP) transmission technology. The method includes: performing priority sequencing on each coordinated cell according to the historical and/or current information of each coordinated cell and finishing scheduling of each coordinated cell in an order according to priority from high to low. By adopting the coordinated scheduling scheme in the present invention, the network can be made in a reasonable working status, and then, the performance of the entire system can be improved.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: March 15, 2016
    Assignee: ZTE Corporation
    Inventors: Kaibo Tian, Nan Zhao, Aihua Peng, Jing Jiang, Dong Zhou
  • Patent number: 9262067
    Abstract: Approaches are described which enable a computing device (e.g., mobile phone, tablet computer) to display alternate views or layers of information within a window on the display screen when a user's finger (or other object) is detected to be within a particular range of the display screen of the device. For example, a device displaying a road map view on the display screen may detect a user's finger near the screen and, in response to detecting the finger, render a small window that shows a portion of a satellite view of the map proximate to the location of the user's finger. As the user's finger moves laterally above the screen, the window can follow the location of the user's finger and display the satellite views of the various portions of the map over which the user's finger passes.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: February 16, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Matthew Paul Bell, Dong Zhou, Guenael Thomas Strutt, Isaac Scott Noble, Stephen Michael Polansky, Jason Robert Weber
  • Publication number: 20160020470
    Abstract: In some examples, a fuel cell including an anode; electrolyte; and cathode separated from the anode by the electrolyte, wherein the cathode includes a Pr-nickelate based material with (Pr1-xAx)n+1(Ni1-yBy)nO3n+1+? as a general formula, where n is 1 as an integer, A is an A-site dopant including of a metal of a group formed by one or more lanthanides, and B is a B-site dopant including of a metal of a group formed by one or more transition metals, wherein the A and B-site dopants are provided such that there is an increase in phase-stability and reduction in degradation of the Pr-nickelate based material, and A is at least one metal cation of lanthanides, La, Nd, Sm, or Gd, B is at least one metal cation of transition metals, Cu, Co, Mn, Zn, or Cr, where: 0<x<1, and 0<y?0.4.
    Type: Application
    Filed: July 21, 2015
    Publication date: January 21, 2016
    Inventors: Hwa Young Jung, Zhengliang Xing, Zhien Liu, Richard W. Goettler, Xiao-Dong Zhou, Emir Dogdibegovic
  • Patent number: 9223415
    Abstract: The use of resources on a computing device can be optimized for current conditions to reduce or minimize the amount of resources needed to provide a sufficient level of performance for various types of tasks. In some embodiments, one or more optimization algorithms can analyze information such as a type of task to be performed and the state of one or more environmental conditions to attempt to select a number and configuration of components, such as cameras and illumination elements, to use in performing the tasks. The performance of the tasks can be monitored, and the selection or states updated in order to maintain a sufficient level of performance without using more resources than are necessary.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: December 29, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Dong Zhou, Gunnar Hovden, Isaac S. Noble, Volodymyr V. Ivanchenko, Kenneth M. Karakotsios
  • Patent number: 9215764
    Abstract: Techniques for high temperature ultra-low ripple multi-stage LED driver circuit together with LED control circuits are disclosed.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: December 15, 2015
    Assignee: Soraa, Inc.
    Inventors: Dong Zhou, Frank Shum, Michael Tran, John Carpenter, Richard Carnes
  • Patent number: 9213436
    Abstract: A user can use a finger, or other such object, to provide input to a computing device. The finger does not have to contact the device, but can be positioned and/or oriented in such a way that the device can determine an input that the user is attempting to provide, such as an element or icon that the user is intended to select. One or more cameras can capture image information, which can be analyzed to attempt to determine the location and/or orientation of the finger. If the finger is at least partially outside a field of view of the camera(s), the device can use a sensor (e.g., EMF) to attempt to determine a location of at least a portion of the finger, which can be used with the image information to determine the location and/or orientation of the finger. Other estimation processes can be used as well.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: December 15, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Kenneth M. Karakotsios, Isaac S. Noble, Dong Zhou
  • Patent number: 9207852
    Abstract: Elements of a graphical user interface, such as a virtual keypad, can have display characteristics adjusted based upon aspects such as a relative hand or finger position of a user. In one example, the transparency of a keypad used to enter text on a portable computing device can be adjusted based on the distance of a user's hand, such that the user can still view content displayed through the interface. A user can also select elements, such as text fields for text entry, by adjusting a relative position of the user's hand and performing a selection gesture or other such action. Various types of functionality can be activated in response to a selection gesture, such as to display a keypad of an appropriate transparency.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: December 8, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Dong Zhou, Kenneth M. Karakotsios
  • Patent number: 9196219
    Abstract: The implementations described include automatically detecting an object in a series of images, identifying that object as having a hand shape, obtaining color value samples from the object and utilizing those color values to generate a custom color spectrum from use in detecting and tracking a user's hand. In some implementations, the custom color spectrum may be periodically updated by obtaining additional color value samples of the user's hand and updating the custom color spectrum to include those color value samples.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: November 24, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Dong Zhou, Kenneth M. Karakotsios
  • Patent number: 9146631
    Abstract: A computing device can obtain information about how the device is held, moved, and/or used by a hand of a user holding the device. The information can be obtained utilizing one or more sensors of the device independently or working in conjunction. For example, an orientation sensor can determine whether a left hand or a right hand is likely rotating, tilting, and/or moving, and thus holding, the device. In another example, a camera and/or a hover sensor can obtain information about a finger position of the user's hand to determine whether the hand is likely a left hand or a right hand. In a further example, a touch sensor can determine a shape of an imprint of a portion of the user's hand to determine which hand is likely holding the device. Based on which hand is holding the device, the device can improve one or more computing tasks.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: September 29, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Timothy Thomas Gray, Dong Zhou, Kenneth Mark Karakotsios, Jennifer Silva