Patents by Inventor Kai Chang

Kai Chang 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: 11736998
    Abstract: A communications apparatus and associated method communicating with at least one cellular network includes a radio transceiver and a processor. The communications apparatus includes a radio transceiver, capable of transmitting or receiving wireless radio frequency signals to or from a cellular network; and a processor. The processor is configured to: receive an incoming call request message that will trigger a Circuit Switch Fall Back (CSFB) procedure or a Evolved Packet System Fall Back (EPS FB) procedure from the cellular network via the radio transceiver, query a user to accept or reject the incoming call request before triggering the CSFB procedure or the EPS FB procedure, and determine whether to trigger the CSFB procedure or the EPS FB procedure based on a response to the query from the user.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: August 22, 2023
    Assignee: MEDIATEK INC.
    Inventors: Guan-Jie Huang, Tzu-Wen Chang, Kuan-Wei Chen, Yu-Hua Huang, Teng Ma, Sheng-Kai Chang
  • Publication number: 20230255483
    Abstract: The invention relates to a hydration sensor comprising a sensing module operably disposed on a target area of interest of skin of a living subject for detecting data associated with thermal properties of the skin; and a wireless platform coupled with the sensing module for wireless data transmission between the sensing module and an external device. The sensing module comprises a thermal actuator for operably heating the target area of interest thereof; and a sensing circuit for simultaneously detecting a transient temperature change thereof to determine thermal properties of the skin.
    Type: Application
    Filed: June 10, 2021
    Publication date: August 17, 2023
    Inventors: John A. Rogers, Anthony R. Banks, Kyeongha Kwon, Jan-kai Chang
  • Publication number: 20230246082
    Abstract: A semiconductor device structure according to the present disclosure includes a source feature and a drain feature, at least one channel structure extending between the source feature and the drain feature, a gate structure wrapped around each of the at least one channel structure, a semiconductor layer over the gate structure, a dielectric layer over the semiconductor layer, a doped semiconductor feature extending through the semiconductor layer and the dielectric layer to be in contact with the source feature, a metal contact plug over the doped semiconductor feature, and a buried power rail disposed over the metal contact plug.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 3, 2023
    Inventors: Chia-Hung Chu, Tsungyu Hung, Hsu-Kai Chang, Ding-Kang Shih, Keng-Chu Lin, Pang-Yen Tsai, Sung-Li Wang, Shuen-Shin Liang
  • Publication number: 20230238193
    Abstract: The teaching equipment of electromechanical system provided by the present invention is used to connect an emergency stop loop of an electromechanical equipment, including a multi-stage key switch, an enabling switch and a safety control device. The multi-stage key switch is used to switch between a first mode and a second mode. The multi-stage key switch generates a switching signal during switching. The enabling switch is connected to the emergency stop loop. The safety control device is used to receive the switching signal. The safety control device includes a transient emergency stop circuit and a disconnection loop time. The safety control device triggers the emergency stop loop to enter the emergency stop state according to the switching signal. The emergency stop state includes that the transient emergency stop circuit interrupts the emergency stop loop until the disconnection loop time is up.
    Type: Application
    Filed: January 25, 2022
    Publication date: July 27, 2023
    Inventors: Yen-Shun HUANG, Yi-Hung CHEN, Shun-Kai CHANG
  • Publication number: 20230237153
    Abstract: An example computing device comprises: a media capture device to capture media; a pin coupled to the media capture device to communicate an unlock signal to the media capture device; and a basic input/output system interconnected with the pin, wherein, to control activation of the media capture device, the basic input/output system is to: store an authentication parameter, receive, from the media capture device, an unlock request; in response to the unlock request, verify an authentication input against the authentication parameter, and in response to a successful verification, send the unlock signal to unlock the media capture device via the pin.
    Type: Application
    Filed: July 22, 2020
    Publication date: July 27, 2023
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: YI-FAN HSIA, CHIH-KAI CHANG, HUNG-LUNG CHEN, CHIA-CHENG LIN, HSIN-JEN LIN, HENG-FU CHANG
  • Publication number: 20230221078
    Abstract: A heat dissipation device including a heat dissipation fin group, a plurality of heat pipes, and a vapor chamber is provided. The heat dissipation fin group includes a plurality of fins arranged along an extension direction and is divided into a first fin group, a second fin group, and a third fin group. The third fin group is disposed between the first fin group and the second fin group. Each fin of the first fin group and the second group includes a plurality of through holes. Each fin of the third fin group includes a plurality of notches. The heat pipes are disposed through the first fin group and the second fin group by the through holes. The vapor chamber is correspondingly disposed on the third fin group and includes a plurality of grooves. The vapor chamber is in contact with the heat pipes exposed from the notches.
    Type: Application
    Filed: October 2, 2022
    Publication date: July 13, 2023
    Applicant: ASUSTeK COMPUTER INC.
    Inventors: Jung-Kai Chang, Chi-Yeh Chen
  • Patent number: 11688573
    Abstract: The relay safety system provided by the present invention includes a relay, an emergency stop device, a trigger detection circuit, a sticking detection circuit, and a power-off circuit. The emergency stop device is used to generate an emergency stop signal. The trigger detection circuit connects the relay and the emergency stop device, and is used to convert the emergency stop signal into a trigger signal. The sticking detection circuit is connected to the trigger detection circuit and the relay, and is used to detect the sticking signal generated by the relay, and generate a power-off signal according to the trigger signal and the sticking signal. The power-off circuit is connected to the emergency stop device, the relay and the sticking detection circuit, and receives the power-off signal, and disconnects the power of the relay according to the power-off signal.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: June 27, 2023
    Assignee: HIWIN TECHNOLOGIES CORP.
    Inventors: Shun-Kai Chang, Yi-Hung Chen, Yen-Shun Huang
  • Patent number: 11683618
    Abstract: An application and network analytics platform can capture telemetry from servers and network devices operating within a network. The application and network analytics platform can determine an application dependency map (ADM) for an application executing in the network. Using the ADM, the application and network analytics platform can resolve flows into flowlets of various granularities, and determine baseline metrics for the flowlets. The baseline metrics can include transmission times, processing times, and/or data sizes for the flowlets. The application and network analytics platform can compare new flowlets against the baselines to assess availability, load, latency, and other performance metrics for the application. In some implementations, the application and network analytics platform can automate remediation of unavailability, load, latency, and other application performance issues.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: June 20, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Ashutosh Kulshreshtha, Omid Madani, Vimal Jeyakumar, Navindra Yadav, Ali Parandehgheibi, Andy Sloane, Kai Chang, Khawar Deen, Shih-Chun Chang, Hai Vu
  • Publication number: 20230185200
    Abstract: A control system includes a plurality of pressure sensors, each to detect a pressure in a respective dynamic gas lock (DGL) nozzle control region of a plurality of DGL nozzle control regions. Each DGL nozzle control region includes one or more DGL nozzles. The control system includes a plurality of mass flow controllers (MFCs). Each MFC of the plurality of MFCs is to control a flow velocity in a respective DGL nozzle control region of the plurality of DGL nozzle control regions. The control system includes a controller to selectively cause one or more MFCs of the plurality of MFCs to adjust flow velocities in one or more DGL nozzle control regions of the plurality of DGL nozzle control regions based on pressures detected by the plurality of pressure sensors in DGL nozzle control regions of the plurality of DGL nozzle control regions.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 15, 2023
    Inventors: Chun-Kai CHANG, Yu Sheng CHIANG, Yu De LIOU, Chi YANG, Ching-Juinn HUANG, Po-Chung CHENG
  • Publication number: 20230174185
    Abstract: A power-measuring device includes a spindle, a power gauge, an electrical circuit, and a cover. The spindle is configured to provide a coupling with a driving unit. The spindle includes a battery chamber within a hollow space of the spindle. The battery chamber is configured to receive a battery unit. The power gauge is coupled with the spindle to measure power applied to the spindle for driving a movement of the driving unit. The electrical circuit is coupled with the spindle, and electrically coupled with the power gauge. The electrical circuit is coupled with the battery unit and configured to receive and process signals from the power gauge. The cover is coupled with the spindle and arranged to enclose at least a portion of at least one of the power gauge and the electrical circuit.
    Type: Application
    Filed: November 24, 2022
    Publication date: June 8, 2023
    Applicant: GIANT MANUFACTURING CO., LTD.
    Inventors: Ching-Yao LIN, Chin-Lai HUANG, Chih-Kai CHANG, Chung-Wei LIN
  • Publication number: 20230175542
    Abstract: A rotary positioning device includes a base, a fixing seat assembled on the shaft and stopper of the base and having and a movable positioning body respectively placed in each horizontal through-hole thereof, a rotation unit including a driving member and a rotating member and assembled outside the fixing seat, the driving member including a rotating shaft movably installed inside the protruding shaft portion of the fixing seat and a connecting portion located on one side of the rotating shaft, the rotating member including two inner shoulders that rotate and resist or retreat from the clamping portion of the fixing seat and two pushing portions for pressing the respective movable positioning bodies for lateral displacement in each through-hole, and an elastic member placed between the protruding shaft portion of the fixing seat and the rotating shaft of the driving member.
    Type: Application
    Filed: February 7, 2023
    Publication date: June 8, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Patent number: 11670490
    Abstract: The present disclosure provides a semiconductor fabrication apparatus. The semiconductor apparatus includes a processing chamber; a substrate stage provided in the processing chamber and being configured to secure and rotate a semiconductor wafer; a gas injector configured to inject a chemical to the processing chamber; a window attached to the gas injector; and an adjustable fastening device coupled with the gas injector and the window.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: June 6, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yung-Shun Hsu, Ching-Yu Chang, Chiao-Kai Chang, Wai Hong Cheah, Chien-Fang Lin
  • Patent number: 11663656
    Abstract: The invention relates to a system and method that implements a customer account automation framework. A mobile device or system comprises: a memory that accesses customer profile data, customer transaction data and payment rules data; and a computer processor, coupled to the memory, programmed to: identify one or more rules, each rule comprising an event and an action, wherein the one or more rules comprise one of: notification, confirmation and automation and an associated device; receive one or more rule suggestions automatically generated based on customer behavior and transaction data; receive one or more sponsored rule suggestions automatically generated based on sponsor data; accept at least one suggested rule, wherein the suggested rule comprises a corresponding event and a corresponding action; detect an occurrence of the event; and automatically perform the action.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: May 30, 2023
    Assignee: JPMORGAN CHASE BANK, N.A.
    Inventors: James P. White, III, Eric Han Kai Chang
  • Patent number: 11647280
    Abstract: The present disclosure discloses a dual-processor electronic apparatus operation method used in a dual-processor electronic apparatus that includes steps outlined below. A first processor is activated in an initialization procedure. A second processor is activated by the first processor to enter an operation mode. The first processor is deactivated in the operation mode, and the second processor executes a predetermined procedure. Whether a predetermined event occurs during the execution of the predetermined procedure is determined by the second processor such that event information is stored when the predetermined event occurs and the first processor is activated. The event information is accessed and processed by the first processor.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: May 9, 2023
    Assignee: SIGMASTAR TECHNOLOGY LTD.
    Inventors: Fu-Cheng Chen, Chao-Kai Chang, Yao-Chang Hsieh
  • Publication number: 20230128386
    Abstract: A pressable locating device and a driving mechanism are disclosed. The locating device includes a shaft, a restraining rod and a restraining member; an accommodation space and a shaft hole of a sleeve of the driving mechanism are mounted on the shaft, the restraining rod and the restraining member. The pressing unit is movably assembled in the accommodation space and includes an inner sliding channel disposed on a bottom thereof, and the restraining member and the restraining rod are movably slid in the inner sliding channel. The inner sliding channel includes a through hole formed on a side thereof, and a locating member is axially movable in the through hole, so as to radially move to restrain with or depart from the restraining rod, along the restraining member. An elastic part is disposed and reciprocated between the bottom of the pressing unit and the accommodation space.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 27, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Publication number: 20230117130
    Abstract: A motor inverter is provided. The motor inverter is coupled to an input power source and a motor and controls the mechanical switch to receive or turn off the input power source. The motor inverter includes primary and secondary auxiliary circuits, a microprocessor, a gate driver, and a motor drive circuit. The primary and secondary auxiliary circuits are coupled to the input power source and outputs first and second output voltages respectively. The microprocessor operates the driving switches of the motor drive circuit through the gate driver to switch the input power source for driving the motor. If the microprocessor determines that the first output voltage is abnormal and the motor rotational speed exceeds a safe speed limit, the microprocessor controls the driving switches to form an active short circuit for stopping the motor, and the microprocessor turns off the mechanical switch for protecting the input power source.
    Type: Application
    Filed: July 26, 2022
    Publication date: April 20, 2023
    Inventors: Kuo-Heng Chao, Yu-Kai Chang
  • Publication number: 20230110234
    Abstract: A board to board positioning device includes a base including a shaft hole inside, two through hole arranged at two opposite sides perpendicular to the shaft hole and respectively mounted with a limiting ball, a connecting portion and a limiting portion respectively provided at two sides and two limiting grooves for aligning with the two through holes, and an adjustment knob including an operation space for the base to pass through, a sliding wall surface positioned against the through holes, a driving portion positioned against the limiting portion and a marking portion provided on the outside. The sliding wall surface has a pressing side and a retreating side used to push the limiting balls into and out of the through holes. The driving portion is protruded with locking protrusions that are used to rotate and slide along the limiting portion to enter and exit the limiting grooves.
    Type: Application
    Filed: April 5, 2022
    Publication date: April 13, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG, Ying-Chih TSENG
  • Publication number: 20230116676
    Abstract: A push controlled positioning device includes a base with a through shaft hole, a push block horizontally and slidably coupled to the base and holding two limiting balls in two opposite through holes, and an axle seat with a shaft rod inserted into the shaft hole of the base and locked in place by the limiting balls under the effect of the elastic restoring force of an elastic member in the push block. When the push block is pushed laterally, the balls enter respective loosening grooves in the push block to unlock the axle seat, allowing removable of the base and the push block from the axle seat.
    Type: Application
    Filed: April 18, 2022
    Publication date: April 13, 2023
    Inventors: Ming-De WU, Ching-Kai CHANG, Ying-Chih TSENG
  • Patent number: 11626494
    Abstract: A semiconductor device structure according to the present disclosure includes a source feature and a drain feature, at least one channel structure extending between the source feature and the drain feature, a gate structure wrapped around each of the at least one channel structure, a semiconductor layer over the gate structure, a dielectric layer over the semiconductor layer, a doped semiconductor feature extending through the semiconductor layer and the dielectric layer to be in contact with the source feature, a metal contact plug over the doped semiconductor feature, and a buried power rail disposed over the metal contact plug.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: April 11, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chia-Hung Chu, Sung-Li Wang, Shuen-Shin Liang, Hsu-Kai Chang, Ding-Kang Shih, Tsungyu Hung, Pang-Yen Tsai, Keng-Chu Lin
  • Publication number: 20230095976
    Abstract: The present disclosure describes a method for forming capping layers configured to prevent the migration of out-diffused cobalt atoms into upper metallization layers In some embodiments, the method includes depositing a cobalt diffusion barrier layer on a liner-free conductive structure that includes ruthenium, where depositing the cobalt diffusion barrier layer includes forming the cobalt diffusion barrier layer self-aligned to the liner-free conductive structure. The method also includes depositing, on the cobalt diffusion barrier layer, a stack with an etch stop layer and dielectric layer, and forming an opening in the stack to expose the cobalt diffusion barrier layer. Finally, the method includes forming a conductive structure on the cobalt diffusion barrier layer.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Inventors: Shuen-Shin LIANG, Chun-I TSAI, Chih-Wei CHANG, Chun-Hsien HUANG, Hung-Yi HUANG, Keng-Chu LIN, Ken-Yu CHANG, Sung-Li WANG, Chia-Hung CHU, Hsu-Kai CHANG