Patents by Inventor Johnny Liu

Johnny Liu 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: 11967631
    Abstract: The present disclosure provides a power semiconductor device and a manufacturing method thereof. In order to provide a power semiconductor device with improved latch-up immunity but without increasing device power loss and costs, a hole current path in a fourth semiconductor region of a first conductivity type between a gate trench and a dummy gate trench is shortened by providing a first contact trench between two adjacent gate trenches, and providing a second contact trench between the gate trench and a dummy gate trench such that the width and depth of the second contact trench are respectively greater than those of the first contact trench. The effect of the hole current on the potential rise of the fourth semiconductor region of the first conductivity type is suppressed, thereby suppressing the latch-up effect, and enhancing the switching reliability.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: April 23, 2024
    Assignee: JSAB TECHNOLOGIES (SHENZHEN) LTD.
    Inventors: Hao Feng, Yong Liu, Jing Deng, Johnny Kin On Sin
  • Publication number: 20210234358
    Abstract: A circuit interrupter including a current sensor having a normal sensor output and an over current detection output, a solid state switch module structured to have a closed state to allow current to flow through the circuit interrupter and an open state to interrupt current flowing through the circuit interrupter, a gate driver structured to control the solid state switch module including a desaturation function output, wherein the gate driver is structured to cause the solid state switch module to interrupt current flowing through the circuit interrupter when the DESAT function output changes to the on state, and an electronic trip circuit structured to output a tri when the normal sensor output reaches a first threshold level or the overcurrent detection output changes to the on state.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 29, 2021
    Applicant: EATON INTELLIGENT POWER LIMITED
    Inventors: Xin Zhou, Brian E. Carlson, Yanjun Feng, Johnny Liu, Michael Slepian, Andrew L. Gottschalk, Santhosh Kumar Chamarajanagar Govinda Nayaka
  • Publication number: 20210234361
    Abstract: A circuit interrupter including a current sensor having a normal sensor output and an over current detection output, a solid state switch module structured to have a closed state to allow current to flow through the circuit interrupter and an open state to interrupt current flowing through the circuit interrupter, a gate driver structured to control the solid state switch module including a desaturation function output, wherein the gate driver is structured to cause the solid state switch module to interrupt current flowing through the circuit interrupter when the DESAT function output changes to the on state, and an electronic trip circuit structured to output a trip signal to the gate driver when the normal sensor output reaches a first threshold level or the overcurrent detection output changes to the on state.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 29, 2021
    Applicant: EATON INTELLIGENT POWER LIMITED
    Inventors: Xin Zhou, Brian E. Carlson, Yanjun Feng, Johnny Liu, Michael Slepian, Andrew L. Gottschalk, Santosh Kumar Chamarajanagar Govinda Nayaka
  • Patent number: 9578018
    Abstract: Remote sign-out of web based service sessions. As a part of remote sign-out of web based service sessions, a user authentication token is accessed that is used to establish a web based service session and this user authentication token is stored in memory of an authentication server and returned in a cookie to the device. User access and deletion of the user authentication token from memory is accommodated using a device different from that which initially established the web based service session. Upon receipt of a browser request involving the user authentication token, it is determined whether the user authentication token is stored in memory. An access denial indication is provided to a web based service that indicates that the user authentication token is not stored in memory.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: February 21, 2017
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Johnny Liu, Keith Senzel, Ye Gu
  • Publication number: 20150249657
    Abstract: Remote sign-out of web based service sessions. As a part of remote sign-out of web based service sessions, a user authentication token is accessed that is used to establish a web based service session and this user authentication token is stored in memory of an authentication server and returned in a cookie to the device. User access and deletion of the user authentication token from memory is accommodated using a device different from that which initially established the web based service session. Upon receipt of a browser request involving the user authentication token, it is determined whether the user authentication token is stored in memory. An access denial indication is provided to a web based service that indicates that the user authentication token is not stored in memory.
    Type: Application
    Filed: October 13, 2014
    Publication date: September 3, 2015
    Inventors: Johnny Liu, Keith Senzel, Ye Gu
  • Patent number: 8863265
    Abstract: Remote sign-out of web based service sessions. As a part of remote sign-out of web based service sessions, a user authentication token is accessed that is used to establish a web based service session and this user authentication token is stored in memory of an authentication server and returned in a cookie to the device. User access and deletion of the user authentication token from memory is accommodated using a device different from that which initially established the web based service session. Upon receipt of a browser request involving the user authentication token, it is determined whether the user authentication token is stored in memory. An access denial indication is provided to a web based service that indicates that the user authentication token is not stored in memory.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: October 14, 2014
    Assignee: Microsoft Corporation
    Inventors: Johnny Liu, Keith Senzel, Ye Gu
  • Publication number: 20140210709
    Abstract: Techniques for providing bio signal based mobile device applications are disclosed. In some embodiments, a system for bio signal based mobile device applications includes a bio signal sensor (e.g., biosensor) or multiple biosensors (e.g., multiple biosensors for EEG detection, or multiple biosensors that can each detect different types of bio signals), a bio signal processing unit, the mobile device, and a software application(s) that utilize the bio signal information for various applications (e.g., practical applications, entertainment applications, social networking applications, and/or other applications).
    Type: Application
    Filed: January 28, 2014
    Publication date: July 31, 2014
    Applicant: NeuroSky, Inc.
    Inventors: Zavier Alexander, Cheng-I Chuang, Johnny Liu, David Westendorf, KooHyoung Lee
  • Patent number: 8676230
    Abstract: Techniques for providing bio signal based mobile device applications are disclosed. In some embodiments, a system for bio signal based mobile device applications includes a bio signal sensor (e.g., biosensor) or multiple biosensors (e.g., multiple biosensors for EEG detection, or multiple biosensors that can each detect different types of bio signals), a bio signal processing unit, the mobile device, and a software application(s) that utilize the bio signal information for various applications (e.g., practical applications, entertainment applications, social networking applications, and/or other applications).
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: March 18, 2014
    Assignee: NeuroSky, Inc.
    Inventors: Zavier Alexander, Cheng-I Chuang, Johnny Liu, David Westendorf, KooHyoung Lee
  • Patent number: 8423687
    Abstract: Location based profiles are used to modify the configuration of a computing device based on a detected location. The location based profiles allow features such as cameras to be enabled and disabled. Physical and logical data storage partitions can also be mounted and unmounted, and the home screen displayed by a device can be modified. Location bookmarks can be used to further customize the appearance and function of a computing device.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: April 16, 2013
    Assignee: Microsoft Corporation
    Inventors: Sridhar Srinivansan, Ye Gu, Johnny Liu
  • Publication number: 20120295589
    Abstract: Techniques for providing bio signal based mobile device applications are disclosed. In some embodiments, a system for bio signal based mobile device applications includes a bio signal sensor (e.g., biosensor) or multiple biosensors (e.g., multiple biosensors for EEG detection, or multiple biosensors that can each detect different types of bio signals), a bio signal processing unit, the mobile device, and a software application(s) that utilize the bio signal information for various applications (e.g., practical applications, entertainment applications, social networking applications, and/or other applications).
    Type: Application
    Filed: May 8, 2012
    Publication date: November 22, 2012
    Applicant: NEUROSKY, INC.
    Inventors: Zavier Alexander, Cheng-I Chuang, Johnny Liu, David Westendorf, KooHyoung Lee
  • Publication number: 20110314553
    Abstract: Location based profiles are used to modify the configuration of a computing device based on a detected location. The location based profiles allow features such as cameras to be enabled and disabled. Physical and logical data storage partitions can also be mounted and unmounted, and the home screen displayed by a device can be modified. Location bookmarks can be used to further customize the appearance and function of a computing device.
    Type: Application
    Filed: August 31, 2011
    Publication date: December 22, 2011
    Applicant: MICROSOFT CORPORATION
    Inventors: SRIDHAR SRINIVASAN, YE GU, JOHNNY LIU
  • Publication number: 20110292221
    Abstract: Architecture that employs a “trainer” camera which uses various pieces of information about the scene being photographed in order to provide the user with options for improving the quality of the photo. The user is guided to emulate professionally or highly rated photographs of the same scene and in the process is trained by the camera to take better pictures. As cameras come equipped with sensory functions such as geolocation capabilities, compass, altimeter, and wireless connectivity such as cellular, Wi-Fi, and Bluetooth, the architecture assists the consumer to take higher quality photos by leveraging these new capabilities as well as the vast amount of photo data and information stored on the Internet and other locations.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 1, 2011
    Applicant: Micorsoft Corporation
    Inventors: Ye Gu, Johnny Liu, Sridhar Srinivasan
  • Patent number: 8032666
    Abstract: Location based profiles are used to modify the configuration of a computing device based on a detected location. The location based profiles allow features such as cameras to be enabled and disabled. Physical and logical data storage partitions can also be mounted and unmounted, and the home screen displayed by a device can be modified. Location bookmarks can be used to further customize the appearance and function of a computing device.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: October 4, 2011
    Assignee: Microsoft Corporation
    Inventors: Sridhar Srinivansan, Ye Gu, Johnny Liu
  • Publication number: 20100318701
    Abstract: Location based profiles are used to modify the configuration of a computing device based on a detected location. The location based profiles allow features such as cameras to be enabled and disabled. Physical and logical data storage partitions can also be mounted and unmounted, and the home screen displayed by a device can be modified. Location bookmarks can be used to further customize the appearance and function of a computing device.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 16, 2010
    Applicant: MICROSOFT CORPORATION
    Inventors: SRIDHAR SRINIVASAN, YE GU, JOHNNY LIU
  • Publication number: 20090320117
    Abstract: Remote sign-out of web based service sessions. As a part of remote sign-out of web based service sessions, a user authentication token is accessed that is used to establish a web based service session and this user authentication token is stored in memory of an authentication server and returned in a cookie to the device. User access and deletion of the user authentication token from memory is accommodated using a device different from that which initially established the web based service session. Upon receipt of a browser request involving the user authentication token, it is determined whether the user authentication token is stored in memory. An access denial indication is provided to a web based service that indicates that the user authentication token is not stored in memory.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 24, 2009
    Applicant: MICROSOFT CORPORATION
    Inventors: Johnny LIU, Keith SENZEL, Ye GU
  • Publication number: 20070136794
    Abstract: An authentication mechanism for use in network-based services generates an authentication token. The authentication token is provided to a client device as part of the code comprising a content page. The content page code is received and loaded by a browser application at the client device. When the content page code is received and loaded by the browser application, the authentication token is loaded by the browser as well. Upon receiving subsequent input, the browser application may send a content request to the server. The content request includes the authentication token maintained by the browser application in the content page. A server may validate the authentication token provided in the request using version information and one or more master authentication tokens.
    Type: Application
    Filed: December 8, 2005
    Publication date: June 14, 2007
    Applicant: Microsoft Corporation
    Inventors: Andy Chin, Alina Vikutan, Johnny Liu