Patents by Inventor Changwen An

Changwen An 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).

  • Publication number: 20180262286
    Abstract: A network-capable device is configured to: automatically detect the presence of a MoCA network (or other network, depending on the network protocol in the application environment), and configure itself for communication on that network at the appropriate communication frequencies. The network-capable device can be configured to create a new network (e.g., a new MoCA network) if there is no network broadcast signal within a band. Preferably, the network-capable device requires little or no user intervention to configure itself for operation at network operating frequencies or to create a new network where none is detected.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 13, 2018
    Inventors: Ronald B. Lee, Edward Warner, Changwen Liu, Shaw Yuan
  • Publication number: 20180231869
    Abstract: The present invention belongs to the technical field of lasers, and particularly relates to a periodically poled crystal and an optical parametric amplifier. The present invention provides a periodically poled crystal, including a first nonlinear region, a linear region and a second nonlinear region, wherein the first nonlinear region and the second nonlinear region both have periodically poled structures. The optical parametric amplifier having the periodically poled crystal can separate the idler wave from the signal wave besides achieving the basic function of optical parametric amplification because the by-produced idler wave transmits in a direction different from the directions that the signal wave and the pump wave transmit, and therefore the energy reflow is suppressed when the optical parametric amplifier has reached saturated amplification, and the performance of the optical parametric amplifier is significantly improved.
    Type: Application
    Filed: April 10, 2018
    Publication date: August 16, 2018
    Inventors: Haizhe Zhong, Ying Li, Changwen Xu, Jianlong Yang, Shiwei Wang, Dianyuan Fan
  • Publication number: 20180226037
    Abstract: The disclosure provides GOA circuits used for switching display on a screen or on two screens and a driving method thereof. The GOA circuits include first GOA circuits on two sides of a main screen to control display of the main screen, second GOA circuits on two sides of the secondary screen to control display of the secondary screen, a first group of GOA control signals, controlling signal output of the first GOA circuits, a second group of GOA control signals, controlling signal output of the second GOA circuits, a switch controller, connecting the first GOA circuits and the second GOA circuits, and controlling connection or disconnection of the first group of GOA control signals and the second group of GOA control signals respectively.
    Type: Application
    Filed: September 18, 2016
    Publication date: August 9, 2018
    Applicants: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan china Optoelectronics Technology Co., Ltd.
    Inventors: Zhou ZHANG, Yu-cheng TSAI, Changwen MA, Pan XU
  • Publication number: 20180211619
    Abstract: The present application discloses a display module comprising a flexible circuit board, a first drive chip, a second drive chip and a display panel, and the display panel comprises a first display region and a second display region which are seamlessly connected, and the first drive chip and the second drive chip are installed on the display panel, and the flexible circuit board is electrically connected to a system main board, the first drive chip and the second drive chip, and the first synchronization signal and the second synchronization signal control the first display region and the second display region to synchronously show images. The present application further publishes a liquid crystal display screen. The first drive chip and the second drive chip respectively drive the first display region and the second display region to synchronously output images.
    Type: Application
    Filed: November 15, 2016
    Publication date: July 26, 2018
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Changwen MA, Chun-hung HUANG, Zhou ZHANG, Yucheng TSAI, Pan XU
  • Publication number: 20180205668
    Abstract: The use of traffic flag symbols allows a large number of CPEs to transmit traffic notifications to a network controller. In some such embodiments, hundreds of CPEs simultaneously transmit traffic flags on different subcarriers of a channel. For example, in a MoCA2 based access network, up to 480 CPEs can transmit flags in only 5 ?s in the 100 MHz-wide channel.
    Type: Application
    Filed: February 23, 2018
    Publication date: July 19, 2018
    Inventors: Changwen Liu, David Barr, Michail Tsatsanis
  • Patent number: 10015135
    Abstract: An apparatus, a method, and a client for synchronizing a jump context, such as for synchronizing a jump context of a social application platform to a third-party website, are provided. The apparatus includes a session ID generating module configured to acquire a jump context of a user from a social application platform, save the jump context to a session data DB, and return an ID of the jump context to the social application platform. The apparatus also includes a session data acquiring API configured to acquire the ID of the jump context from a third-party website, acquire the corresponding jump context from the session data DB according to the ID, and feed back the jump context to the third-party website. The session data DB is configured to save the jump context and the ID corresponding to the jump context.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: July 3, 2018
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventor: Changwen Yuan
  • Publication number: 20180113542
    Abstract: The present invention publishes a plug-in touch display device published, which comprises a capacitive touch screen and a display module which are stacked together. The display module comprises a display panel and a backlight module arranged relatively and a middle frame used for supporting the display panel and the backlight module. The display panel comprises an array substrate. The array substrate comprises a plurality of pixel electrode layer which is arranged, wherein the pixel electrode layer is used for a first capacitive sensing electrode. The middle frame is toward one side of the backlight module, and further arranging the second capacitive sensing electrode. There is a gap between in the second capacitive sensing electrode and backlight module. The first capacitive sensing electrode and the second capacitive sensing electrode configure an electrode-induction device jointly, which are used for sensing the pressure signal applied on the capacitive touch screen.
    Type: Application
    Filed: May 26, 2016
    Publication date: April 26, 2018
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Chang CAO, Yu-cheng TSAI, Changwen MA, Zhou ZHANG
  • Publication number: 20180104216
    Abstract: Disclosed are a pharmaceutical composition for treating non-alcoholic fatty liver and a method for preparing same. The composition is prepared from the following hulk drugs by weight ratio: 8.75-60 parts of silibinin, 15-65 parts of phospholipid, 25-200 parts of Pu'er tea extract, and 5-50 parts of radix puerariae extract.
    Type: Application
    Filed: March 22, 2016
    Publication date: April 19, 2018
    Inventors: Xijun YAN, Naifeng WU, He SUN, Kaijing YAN, Yonghong ZHU, Xiaohui MA, Shunnan ZHANG, Changwen LI, Xiaolin BAI, Ting LI, Lei LI, Yi HE
  • Patent number: 9942168
    Abstract: The use of traffic flag symbols allows a large number of CPEs to transmit traffic notifications to a network controller. In some such embodiments, hundreds of CPEs simultaneously transmit traffic flags on different subcarriers of a channel. For example, in a MoCA2 based access network, up to 480 CPEs can transmit flags in only 5 ?s in the 100 MHz-wide channel.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: April 10, 2018
    Assignee: Entropic Communications, LLC
    Inventors: Changwen Liu, David Barr, Michail Tsatsanis
  • Publication number: 20180088700
    Abstract: The present disclosure proposes a plug-in touch display with a pressure sensing function. The touch display includes a capacitive touch screen to sense a touch and a display module includes a display panel having conductive layers which one of the conductive layers is configured to be used as a first capacitive sensing electrode, a backlight module positioned oppositely to the display panel, and a middle frame, configured to support the display panel and the backlight module. A second capacitive sensing electrode is positioned at a side of the middle frame, which is toward the backlight module. A gap exists between the second capacitive sensing electrode and the backlight module. The first capacitive sensing electrode and the second capacitive sensing electrode forms a capacitive sensing structure for sensing a pressure applied on the capacitive touch panel. This structure is compact and easy to produce and thus reduces the manufacturing expenses.
    Type: Application
    Filed: May 24, 2016
    Publication date: March 29, 2018
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Chang CAO, Yu-cheng TSAI, Zhou ZHANG, Changwen MA
  • Publication number: 20180081463
    Abstract: A touch control liquid crystal display device, having a display panel and a backlight module disposed opposite each other and a middle frame supporting the panel and module. The panel includes an array and a filter substrate disposed opposite each other and a liquid crystal layer disposed there-between; wherein, a driving electrode layer is disposed on the array substrate, a first induction electrode layer is disposed on the filter substrate, the driving electrode layer and the first induction electrode layer constitute a capacitive touch control structure. Wherein, a second induction electrode layer is disposed on a side of the middle frame facing the module, there is a gap between the second induction electrode layer and the module. The second induction electrode layer and the driving electrode layer constitute a capacitive induction mechanism to induct a pressure signal applied on the panel. An electronic apparatus including the above device is also disclosed.
    Type: Application
    Filed: April 5, 2016
    Publication date: March 22, 2018
    Inventors: Zhou ZHANG, Chang CAO, Changwen MA, Yu-cheng TSAI
  • Patent number: 9923652
    Abstract: A network-capable device is configured to: automatically detect the presence of a MoCA network (or other network, depending on the network protocol in the application environment), and configure itself for communication on that network at the appropriate communication frequencies. The network-capable device can be configured to create a new network (e.g., a new MoCA network) if there is no network broadcast signal within a band. Preferably, the network-capable device requires little or no user intervention to configure itself for operation at network operating frequencies or to create a new network where none is detected.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: March 20, 2018
    Assignee: ENTROPIC COMMUNICATIONS, LLC
    Inventors: Ronald B. Lee, Edward Warner, Changwen Liu, Shaw Yuan
  • Patent number: 9906508
    Abstract: System and methods are provided for admission in a network comprising at least one node providing network controller (NC) functionality. A first node in the network, which is capable of generating SALTs, may assume NC functionality, and may distribute the SALT to at least one other node within the network. The first node may receive from the at least one other node, during admission to the network, a request for a dynamic encryption key, with the request being encrypted using a static encryption key unique to the at least one other node, and the static encryption key being determined based on the SALT.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 27, 2018
    Assignee: ENTROPIC COMMUNICATIONS, LLC
    Inventors: Changwen Liu, Ronald B. Lee
  • Publication number: 20180021716
    Abstract: A conformable, unframed, non-self-supporting pleated air filter, comprising: a conformable, unframed, non-self-supporting, pleated air filter media with an upstream face and a downstream face, wherein the conformable, unframed, non-self-supporting, pleated air filter media comprises a plurality of oppositely-facing pleats with a pleat direction and with a plurality of upstream pleat tips and upstream pleat valleys and downstream pleat tips and downstream pleat valleys, the pleated air filter media further comprising a plurality of bridging filaments on the downstream face of the pleated air filter media.
    Type: Application
    Filed: January 29, 2015
    Publication date: January 25, 2018
    Applicant: 3M Innovative Properties Company
    Inventors: Changwen Li, Andrew R. Fox, Bryan L. Gerhardt
  • Publication number: 20170366834
    Abstract: Provided are a method, a device and a system for presenting information. The method includes: acquiring at least one preset information presentation time point in a video to be played and a pre-stored presentation information set associated with video content at the information presentation time point, where the presentation information set corresponds to the information presentation time point in a one-to-one manner; selecting to-be-presented information from the presentation information set corresponding to the information presentation time point based on historical browsing information, to obtain the to-be-presented information corresponding to the information presentation time point; and sending the to-be-presented information corresponding to the information presentation time point to a terminal.
    Type: Application
    Filed: September 1, 2017
    Publication date: December 21, 2017
    Inventors: Junzhi GAO, Bin ZHOU, Ao PENG, Yiting ZHANG, Suibin YAO, Hao HU, Changwen YUAN, Xiaokang YUAN, Xing LI, Shaolin BAI, Kunxian WANG, Quanzhen JIANG, Jie QI
  • Patent number: 9807030
    Abstract: The use of traffic flag symbols allows a large number of CPEs to transmit traffic notifications to a network controller. In some such embodiments, hundreds of CPEs simultaneously transmit traffic flags on different subcarriers of a channel. For example, in a MoCA2 based access network, up to 480 CPEs can transmit flags in only 5 ?s in the 100 MHz-wide channel.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: October 31, 2017
    Assignee: Entropic Communications, LLC
    Inventors: Changwen Liu, David Barr, Michail Tsatsanis
  • Publication number: 20170241193
    Abstract: The present disclosure generally relates to adjustably sized air filter systems capable of use in a window opening. The present disclosure also related to methods of making and using these adjustably sized air filter systems.
    Type: Application
    Filed: August 24, 2015
    Publication date: August 24, 2017
    Inventors: Andrew R. Fox, Nicolas A. Echeverri, Jonathan M. Lise, Changwen Li, Liang Cheng, Kannan Seshadri
  • Publication number: 20170171109
    Abstract: The use of traffic flag symbols allows a large number of CPEs to transmit traffic notifications to a network controller. In some such embodiments, hundreds of CPEs simultaneously transmit traffic flags on different subcarriers of a channel. For example, in a MoCA2 based access network, up to 480 CPEs can transmit flags in only 5 ?s in the 100 MHz-wide channel.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 15, 2017
    Inventors: Changwen Liu, David Barr, Michail Tsatsanis
  • Patent number: 9680911
    Abstract: A method of short uniform resource locator (URL) lookup and feedback of various examples may include: receiving a request related with a short URL associated with a target URL; identifying resource information of the short URL which is descriptive of credibility of network resources pointed to by the target URL; and making the resource information provided to a user. Another method of short URL lookup and feedback of various examples may include: receiving a request related with a long URL; identifying an identity of a website providing network resources pointed to by the long URL, the identity is a character string or a logo; generating a short URL which includes the identity; and making the short URL provided to the user.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: June 13, 2017
    Inventor: Changwen Yuan
  • Patent number: 9613148
    Abstract: A method and system for determining a property of a user in a social network platform are provided according to some embodiments of the present disclosure. The method includes: determining a property of a seed user in the social network platform; determining a property of a social network platform function interacting with a user according to a property of the user in the social network platform; and determining a property of a user interacting with a social network platform function according to a property of the social network platform function. By the embodiments of the present disclosure, the property of the user in the social network platform can be determined accurately.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: April 4, 2017
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Changwen Yuan