Patents by Inventor Hsuan Chang

Hsuan 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).

  • PRESENCE DETECTION AND RECOGNITION WITH WI-FI
    Publication number: 20230109149
    Abstract: A method includes receiving CSI data for at least one communication link between a first electronic device (ED1) and a Wi-Fi device in a 3D space. The method includes preprocessing the CSI data; and determining whether a motion of an object is detected within a threshold distance to the ED1 based on the preprocessed CSI data. The detection of the motion of the object corresponds to a determination that the object is present in the space. The detection of no motion of the object corresponds to a determination that the object is not present in the space. The method includes outputting at least one of: a first indicator indicating that the space is empty, in response to the determination that the object is not present in the space; or a second indicator indicating that the space is occupied, in response to the determination that the object is present in the space.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 6, 2023
    Inventors: Hao Chen, Guanbo Chen, Hao-Hsuan Chang, Dong Li, Abhishek Sehgal
  • ANTIBODY SPECIFIC TO SPIKE PROTEIN OF SARS-COV-2 AND USES THEREOF
    Publication number: 20230105209
    Abstract: The present disclosure relates to an antibody or antigen-binding fragment thereof that specifically binds to a spike protein of SARS-CoV-2. The present disclosure also relates to a pharmaceutical composition, a method for treating and/or preventing diseases and/or disorders caused by a coronavirus in a subject in need thereof, and a method for detecting a coronavirus in a sample.
    Type: Application
    Filed: October 3, 2022
    Publication date: April 6, 2023
    Inventors: Kuo-I LIN, Che MA, Chi-Huey WONG, Szu-Wen WANG, Yi-Hsuan CHANG, Xiaorui CHEN, Han-Yi HUANG
  • DEFECT INSPECTING METHOD AND SYSTEM PERFORMING THE SAME
    Publication number: 20230091623
    Abstract: The present disclosure provides a defect inspecting method and a defect inspecting system configured to inspect a memory device. The defect inspecting method includes the operations of: resetting the memory device from a power on state; initializing the memory device; performing a plurality of write operations to a memory cell array of the memory device according to a test pattern; performing a plurality of read operations to the memory cell array of the memory cell to generate a readout pattern; and determining whether a defect existed in the memory device according to the readout pattern.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Inventors: CHIH-LEI CHANG, CHUN-YU LIN, LI-PING YU, SHAO-HSUAN CHANG
  • INVERTER DEVICE
    Publication number: 20230068053
    Abstract: An inverter device includes a converter circuit and a filter. The converter circuit converts a DC input voltage into an AC intermediate voltage based on six control signals, and includes first and second converters. Each of the first and second converters includes three switches, two diodes and a coupled inductor circuit. The switches of the first converter operate respectively based on three of the control signals. The switches of the second converter operate respectively based on the other three of the control signals. The filter filters the AC intermediate voltage to generate an AC output voltage.
    Type: Application
    Filed: January 6, 2022
    Publication date: March 2, 2023
    Inventors: Chien-Hsuan CHANG, Yi-Fan CHEN
  • WEARABLE ULTRASONIC THERAPEUTIC DEVICE CONTROLLED BY MOBILE ELECTRONIC DEVICE
    Publication number: 20230059663
    Abstract: A wearable ultrasonic therapeutic device controlled by a mobile electronic device is provided, which includes a mobile device, at least one ultrasonic probe module and a strap. The mobile device has a mobile device control interface for setting ultrasonic parameters and displaying an echo wave through a specific software interface of the mobile device. The ultrasonic probe module includes at least one ultrasonic transducer and a control circuit corresponding thereto. The ultrasonic transducer generates and receives an ultrasonic wave. The control circuit has the functions of generating/receiving signals, phase regulation, power amplification and matching. One end of the ultrasonic probe module is electrically connected to the mobile device and the other end of the ultrasonic probe module is connected to the strap.
    Type: Application
    Filed: November 24, 2021
    Publication date: February 23, 2023
    Inventors: GIN-SHIN CHEN, CHIA-HSUAN CHANG, JUNG-CHIH CHEN
  • Communication device and collision detection method
    Patent number: 11589391
    Abstract: A communication device includes a radio transceiver and a collision detection device. The radio transceiver is configured to receive a wireless signal which includes an acknowledgment packet from a wireless communication channel. The acknowledgment packet includes acknowledgment information which corresponds to a plurality of transmitted packets. The collision detection device is coupled to the radio transceiver and configured to receive the acknowledgment packet, determine whether collision has occurred in the wireless communication channel according to the acknowledgment information corresponding to the transmitted packets and accordingly generate a detection result. The collision detection device determines whether collision has occurred according to a distribution of the acknowledgment information having a predetermined acknowledgment status.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: February 21, 2023
    Assignee: Realtek Semiconductor Corp.
    Inventors: Wei-Chi Lai, Wei-Hsuan Chang, Yu-Nan Lin
  • BLOCK COPOLYMER SELF-ALIGNMENT ON ISOLATED CHEMICAL STRIPES
    Publication number: 20230036175
    Abstract: Methods of spatially directing the orientation and placement of multiple block copolymer (BCP) domains on isolated regions of a substrate are described. The methods involve epitaxially directing the assembly of BCP domains using spatial boundaries between regions with different surface composition, formed at the edges of isolated chemical regions on a background chemistry. Multiple vertical domains of BCP order on the isolated region, self-aligned in a direction parallel to edges of the isolated region. In some embodiments, vertical domains order on multiple isolated regions of a first chemistry of a chemical contrast pattern with horizontal domains on the regions of a second (background) chemistry of the chemical contrast pattern. Also provided herein are compositions resulting from the methods.
    Type: Application
    Filed: December 22, 2020
    Publication date: February 2, 2023
    Inventors: Michael Arnold, Robert Jacobberger, Paul F. Nealey, Shisheng Xiong, Tzu-Hsuan Chang, Zhenqiang Ma
  • Semiconductor structure
    Patent number: 11569380
    Abstract: A semiconductor structure is provided, and the semiconductor structure includes a substrate, and an active area is defined thereon, a gate structure spanning the active area, wherein the overlapping range of the gate structure and the active area is defined as an overlapping region, and the overlapping region includes four corners, and at least one salicide block covering the four corners of the overlapping region.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: January 31, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Hsuan Chang, Ming-Hua Tsai, Chin-Chia Kuo
  • Automatic injection training device
    Patent number: 11551581
    Abstract: The present invention relates to an automatic injection training device comprising an elongated housing having a distal end and an opposite proximal end and extending along a longitudinally axis (L); a tubular demo container axially and rotationally fixed relative to the elongated housing and having a tubular wall extending along the longitudinally axis (L); a reloadable plunger assembly comprising a plunger rod which is movable in the demo container between a first and a second position and a first energy accumulating element configured to move the plunger rod from the first to the second position; an actuation assembly configured to hold the plunger rod in the first position and to release the plunger rod from the first position.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: January 10, 2023
    Assignee: SHL MEDICAL AG
    Inventors: Wen-An Chang, Yun-Hsuan Chang
  • Semiconductor structure
    Publication number: 20230006062
    Abstract: A semiconductor structure is provided, and the semiconductor structure includes a substrate, and an active area is defined thereon, a gate structure spanning the active area, wherein the overlapping range of the gate structure and the active area is defined as an overlapping region, and the overlapping region includes four corners, and at least one salicide block covering the four corners of the overlapping region.
    Type: Application
    Filed: July 2, 2021
    Publication date: January 5, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Hsuan Chang, Ming-Hua Tsai, Chin-Chia Kuo
  • Method of forming semiconductor device
    Patent number: 11545447
    Abstract: A semiconductor device includes a substrate, a first isolation structure, a second isolation structure and a dummy pattern. The substrate includes a first part surrounding a second part at a top view. The first isolation structure is disposed between the first part and the second part, to isolate the first part from the second part. The second isolation structure is disposed at at least one corner of the first part. The dummy pattern is disposed on the second isolation structure. The present invention also provides a method of forming said semiconductor device.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: January 3, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Hsuan Chang, Ming-Hua Tsai, Chin-Chia Kuo
  • PIKFYVE ANTISENSE OLIGONUCLEOTIDES
    Publication number: 20220411804
    Abstract: The present invention relates to PIKFYVE antisense oligonucleotides (ASOs), pharmaceutical compositions containing them, and methods for treating, inhibiting, suppressing, and preventing neurological diseases with them.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 29, 2022
    Inventors: Wen-Hsuan Chang, Emily Elizabeth Lee
  • THERAPEUTIC ANTIBODIES
    Publication number: 20220403042
    Abstract: Disclosed herein are humanized antibodies, antigen-binding fragments thereof, and antibody conjugates, that are capable of specifically binding to certain biantennary Lewis antigens, which antigens are expressed in a variety of cancers. The presently disclosed antibodies are useful to target antigen-expressing cells for treatment or detection of disease, including various cancers. Also provided are polynucleotides, vectors, and host cells for producing the disclosed antibodies and antigen-binding fragments thereof. Pharmaceutical compositions, methods of treatment and detection, and uses of the antibodies, antigen-binding fragments, antibody conjugates, and compositions are also provided.
    Type: Application
    Filed: July 26, 2022
    Publication date: December 22, 2022
    Inventors: Tong-Hsuan CHANG, Mei-Chun YANG, Liahng-Yirn LIU, Jerry TING, Shu-Yen CHANG, Yen-Ying CHEN, Yu-Yu LIN, Shu-Lun TANG
  • CHANNEL ESTIMATION METHOD, SYSTEM, DEVICE, AND STORAGE MEDIUM
    Publication number: 20220400032
    Abstract: Disclosed are a channel estimation method and system, a device, and a storage medium. The method includes: acquiring a channel type and a channel expression under a multi-user environment first, and then according to the channel type, determining a training sequence set, training sequences in the training sequence set being zero circular convolution sequences; and according to the channel type, the channel expression and the training sequence set, determining an output sequence.
    Type: Application
    Filed: August 2, 2021
    Publication date: December 15, 2022
    Inventors: Ho-Hsuan Chang, Donghua Xuan
  • FABRICATING METHOD OF REDUCING PHOTORESIST FOOTING
    Publication number: 20220365433
    Abstract: A fabricating method of reducing photoresist footing includes providing a silicon nitride layer. Later, a fluorination process is performed to graft fluoride ions onto a top surface of the silicon nitride layer. After the fluorination process, a photoresist is formed to contact the top surface of the silicon nitride layer. Finally, the photoresist is patterned to remove at least part of the photoresist contacting the silicon nitride layer.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 17, 2022
    Inventors: Hao-Hsuan Chang, Da-Jun Lin, Yao-Hsien Chung, Ting-An Chien, Bin-Siang Tsai, Chih-Wei Chang, Shih-Wei Su, Hsu Ting, Sung-Yuan Tsai
  • Electronic device
    Patent number: 11500503
    Abstract: An electronic device includes a first conductive layer including a first metal mesh including a first metal line segment, a second metal line segment and a first compensating line segment. The first metal line segment extends along a first direction and has a first end, and the second metal line segment extends along the first direction and has a second end, wherein a first breakpoint exists between the first end and the second end. The first compensating line segment is separated from and electrically insulated from the first metal line segment and the second metal line segment, the first compensating line segment does not completely overlap the first breakpoint, and a minimum distance between the first breakpoint and each first segment end of the first compensating line segment is less than or equal to 50 ?m.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: November 15, 2022
    Assignee: HENGHAO TECHNOLOGY CO., LTD.
    Inventors: Chun-Jung Chen, Su-Hsuan Chang
  • Communication device and method for dynamically adjusting packet detection threshold
    Patent number: 11489744
    Abstract: A communication device includes a packet detection circuit, a decoding circuit and a threshold decision circuit. The packet detection circuit is arranged to perform packet detection according to at least one threshold to determine whether a packet is included in a received signal. The decoding circuit is arranged to decode the packet when packet detection circuit determines that the packet is included in the received signal, and determine whether the packet is a predetermined packet. The threshold decision circuit is arranged to calculate a number of the predetermined packet received within a time period and adjust the at least one threshold according to the number of the predetermined packet.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: November 1, 2022
    Assignee: Realtek Semiconductor Corp.
    Inventors: Wei-Chi Lai, Wei-Hsuan Chang, Shen-Chung Lee
  • Compositions and methods for maintaining cell viability
    Patent number: 11485953
    Abstract: The present disclosure provides for a cell stabilizing medium which comprises gelatin. The cell stabilizing medium help maintain cell viability, e.g., after thawing of a biological material post-cryopreservation.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: November 1, 2022
    Assignee: TRANSWELL BIOTECH CO., LTD.
    Inventors: Ya-Hsuan Chang, Cheng-Yi Lin, Chih-Yuan Chao
  • VALVE BODY STRUCTURE
    Publication number: 20220316616
    Abstract: A valve body structure is provided and includes a main pipe, a secondary pipe and a liquid storage tank, where the liquid storage tank stores a second liquid from the secondary pipe and controls whether the second liquid in the liquid storage tank flows into the main pipe by a solenoid valve, so that the second liquid is mixed with a first liquid in the main pipe. Therefore, the valve body structure can mix liquids without combining other components and has a lower cost and a smaller volume. As such, the issue of the remaining residual liquid when combined with other components for control, which reduces the control accuracy and even causes the problem of mixed pollution, can be avoided.
    Type: Application
    Filed: March 28, 2022
    Publication date: October 6, 2022
    Inventors: Daniel Hill, Yi-Hsuan Chang
  • Self-driving coordination system and control method thereof
    Patent number: 11454987
    Abstract: A self-driving coordination system and the control method thereof are disclosed. The system and the control method are applied to an all-self-driving vehicle fleet. The self-driving coordination system comprises a leader control device, a follower control device, and a server. The leader control device is mounted in a leader. The follower control device is mounted in a follower. The leader control device and the follower control device communicate with each other for bidirectional data transmission. The server communicates with the leader control device and the follower control device for respective bidirectional data transmission.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: September 27, 2022
    Assignee: AUTOMOTIVE RESEARCH & TESTING CENTER
    Inventors: Wei-Hsuan Chang, Rong-Terng Juang