Patents by Inventor Yung-Han Chen

Yung-Han Chen 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: 11955397
    Abstract: A semiconductor structure is provided. The semiconductor structure includes a substrate, a channel layer, a barrier layer, a compound semiconductor layer, a gate electrode, and a stack of dielectric layers. The channel layer is disposed on the substrate. The barrier layer is disposed on the channel layer. The compound semiconductor layer is disposed on the barrier layer. The gate electrode is disposed on the compound semiconductor layer. The stack of dielectric layers is disposed on the gate electrode. The stack of dielectric layers includes layers having different etching rates.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: April 9, 2024
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Shin-Cheng Lin, Cheng-Wei Chou, Ting-En Hsieh, Yi-Han Huang, Kwang-Ming Lin, Yung-Fong Lin, Cheng-Tao Chou, Chi-Fu Lee, Chia-Lin Chen, Shu-Wen Chang
  • Publication number: 20240108409
    Abstract: A laser device for photocoagulation surgery is disclosed, wherein the laser device includes a multi-wavelength laser source having a first direction and a second direction different from the first direction. The laser device includes a positioning light source, a first laser light source, a first lens, a second laser light source, a second lens, a third laser light source, a third lens, a fourth laser light source and a fourth lens. The positioning light source configured to project a positioning visible light along the first direction, wherein the positioning visible light has a specific wavelength being about 635 nm. The first laser light source configured to project a first laser light having a first wavelength along the second direction. The first lens disposed in a main optical path of the positioning visible light, and configured to receive the first laser light and reflect the first laser light along the first direction.
    Type: Application
    Filed: February 9, 2023
    Publication date: April 4, 2024
    Inventors: Yung-Fu Chen, Hsing-Chih Liang, Chia-Han Tsou
  • Publication number: 20240098833
    Abstract: A method for mobility enhancement in wireless communication systems is provided. The method is performed by a User Equipment (UE) configured with a first Small Data Transmission (SDT) configuration by a first cell. The method includes receiving a Radio Resource Control (RRC) release message including a suspend configuration from the first cell; transitioning to an RRC INACTIVE state in response to receiving the RRC release message; receiving, in the RRC INACTIVE state, a System Information Block Type 1 (SIB1) including a second SDT configuration from a second cell; camping on the second cell in response to receiving the SIB1 from the second cell; and while the UE is camping on the second cell, refraining from using the first SDT configuration to initiate an SDT procedure associated with the second cell in a case that the UE does not support performing the SDT procedure associated with the second cell.
    Type: Application
    Filed: September 14, 2023
    Publication date: March 21, 2024
    Inventors: YUNG-LAN TSENG, YEN-HUA LI, HAI-HAN WANG, HUNG-CHEN CHEN
  • Publication number: 20240021736
    Abstract: In some implementations, one or more semiconductor processing tools may form a first terminal of a semiconductor device by depositing a tunneling oxide layer on a first portion of a body of the semiconductor device, depositing a first volume of polysilicon-based material on the tunneling oxide layer, and depositing a first dielectric layer on an upper surface and a second dielectric layer on a side surface of the first volume of polysilicon-based material. The one or more semiconductor processing tools may form a second terminal of the semiconductor device by depositing a second volume of polysilicon-based material on a second portion of the body of the semiconductor device. A side surface of the second volume of polysilicon-based material is adjacent to the second dielectric layer.
    Type: Application
    Filed: July 26, 2023
    Publication date: January 18, 2024
    Inventors: Yu-Chu LIN, Chi-Chung JEN, Wen-Chih CHIANG, Ming-Hong SU, Yung-Han CHEN, Mei-Chen SU, Chia-Ming PAN
  • Patent number: 11769837
    Abstract: In some implementations, one or more semiconductor processing tools may form a first terminal of a semiconductor device by depositing a tunneling oxide layer on a first portion of a body of the semiconductor device, depositing a first volume of polysilicon-based material on the tunneling oxide layer, and depositing a first dielectric layer on an upper surface and a second dielectric layer on a side surface of the first volume of polysilicon-based material. The one or more semiconductor processing tools may form a second terminal of the semiconductor device by depositing a second volume of polysilicon-based material on a second portion of the body of the semiconductor device. A side surface of the second volume of polysilicon-based material is adjacent to the second dielectric layer.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: September 26, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chu Lin, Chi-Chung Jen, Wen-Chih Chiang, Ming-Hong Su, Yung-Han Chen, Mei-Chen Su, Chia-Ming Pan
  • Patent number: 11643842
    Abstract: The disclosure provides an electronic lock without an active power source, an electronic lock system, and a method of operating the electronic lock. According to an exemplary embodiment, the electronic lock includes a WPR which receives wireless electrical power to provide power for the electronic lock; a circuit board electrically connected to the WPR and including a wireless transceiver which receives a lock command or an unlock command; and a controller configured to generate a lock control signal or an unlock control signal in response to receiving the lock command or an unlock command; and an actuator electrically connected to the circuit board and receives the lock control signal to lock a mechanical lock component or the unlock control signal to unlock the mechanical lock component.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: May 9, 2023
    Assignee: Industrial Technology Research Institute
    Inventor: Yung-Han Chen
  • Publication number: 20220165877
    Abstract: In some implementations, one or more semiconductor processing tools may form a first terminal of a semiconductor device by depositing a tunneling oxide layer on a first portion of a body of the semiconductor device, depositing a first volume of polysilicon-based material on the tunneling oxide layer, and depositing a first dielectric layer on an upper surface and a second dielectric layer on a side surface of the first volume of polysilicon-based material. The one or more semiconductor processing tools may form a second terminal of the semiconductor device by depositing a second volume of polysilicon-based material on a second portion of the body of the semiconductor device. A side surface of the second volume of polysilicon-based material is adjacent to the second dielectric layer.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 26, 2022
    Inventors: Yu-Chu LIN, Chi-Chung JEN, Wen-Chih CHIANG, Ming-Hong SU, Yung-Han CHEN, Mei-Chen SU, Chia-Ming PAN
  • Patent number: 11257963
    Abstract: In some implementations, one or more semiconductor processing tools may form a first terminal of a semiconductor device by depositing a tunneling oxide layer on a first portion of a body of the semiconductor device, depositing a first volume of polysilicon-based material on the tunneling oxide layer, and depositing a first dielectric layer on an upper surface and a second dielectric layer on a side surface of the first volume of polysilicon-based material. The one or more semiconductor processing tools may form a second terminal of the semiconductor device by depositing a second volume of polysilicon-based material on a second portion of the body of the semiconductor device. A side surface of the second volume of polysilicon-based material is adjacent to the second dielectric layer.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: February 22, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chu Lin, Chi-Chung Jen, Wen-Chih Chiang, Ming-Hong Su, Yung-Han Chen, Mei-Chen Su, Chia-Ming Pan
  • Patent number: 10756447
    Abstract: A communication terminal device is applicable to an aerial vehicle. The communication terminal device includes an antenna, an altimeter and a processing circuit. The antenna is configured to provide a transceiving range of electromagnetic waves. The flight height detector is configured to obtain an altitude measurement value adapted to specify an altitude of the aerial vehicle. The processing circuit is coupled to the altimeter and is configured to: determine whether the altitude measurement value exceeds a height threshold value; set the transceiving range of electromagnetic waves of the antenna to be omni-directional in response to determining that the altitude measurement value does not exceed the height threshold value; in response to determining that the altitude exceeds the height threshold value, execute an antenna beam width adjusting mechanism, so that the transceiving range of electromagnetic waves of the antenna is shaped into a directional beam.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 25, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventor: Yung-Han Chen
  • Patent number: 10614645
    Abstract: An intelligent door lock, a control method thereof, and an unlocking apparatus and method thereof are provided. The unlocking method is adapted for an unlocking apparatus to unlock a door lock apparatus, and includes following steps. Receiving a plurality of broadcast packages sent by the door lock apparatus in response to an operation on the door lock apparatus, and detecting a variation in signal strengths of the broadcast packets caused by the operation. Reading a stage message, which is recorded in each of the broadcast packages, of the door lock apparatus corresponding to the operation. Determining whether a variation of the stage messages matches a variation of the signal strengths of the broadcast packages. Sending an unlocking signal to the door lock apparatus for executing unlocking if a determination result indicates match.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: April 7, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Yi-Min Tsai, Yung-Han Chen
  • Publication number: 20200071957
    Abstract: The disclosure provides an electronic lock without an active power source, an electronic lock system, and a method of operating the electronic lock. According to an exemplary embodiment, the electronic lock includes a WPR which receives wireless electrical power to provide power for the electronic lock; a circuit board electrically connected to the WPR and including a wireless transceiver which receives a lock command or an unlock command; and a controller configured to generate a lock control signal or an unlock control signal in response to receiving the lock command or an unlock command; and an actuator electrically connected to the circuit board and receives the lock control signal to lock a mechanical lock component or the unlock control signal to unlock the mechanical lock component.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 5, 2020
    Applicant: Industrial Technology Research Institute
    Inventor: Yung-Han Chen
  • Publication number: 20190173201
    Abstract: A communication terminal device is applicable to an aerial vehicle. The communication terminal device includes an antenna, an altimeter and a processing circuit. The antenna is configured to provide a transceiving range of electromagnetic waves. The flight height detector is configured to obtain an altitude measurement value adapted to specify an altitude of the aerial vehicle. The processing circuit is coupled to the altimeter and is configured to: determine whether the altitude measurement value exceeds a height threshold value; set the transceiving range of electromagnetic waves of the antenna to be omni-directional in response to determining that the altitude measurement value does not exceed the height threshold value; in response to determining that the altitude exceeds the height threshold value, execute an antenna beam width adjusting mechanism, so that the transceiving range of electromagnetic waves of the antenna is shaped into a directional beam.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 6, 2019
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventor: Yung-Han Chen
  • Patent number: 9838977
    Abstract: A communication method, an electronic device and a system for managing transmission of notification messages are provided. The method recognizes a transmission power of a base station is to be increased or decreased according to information of the base station. If the transmission power of the base station is to be increased, a first notification procedure is triggered to have one or more vicinity base stations of the base station transmitting a first message. And if the transmission power of the base station is to be decreased, a second notification procedure is triggered to have the base station transmitting a second message.
    Type: Grant
    Filed: April 16, 2016
    Date of Patent: December 5, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yung-Han Chen, Fang-Ching Ren
  • Publication number: 20170257831
    Abstract: A communication method, an electronic device and a system for managing transmission of notification messages are provided. The method recognizes a transmission power of a base station is to be increased or decreased according to information of the base station. If the transmission power of the base station is to be increased, a first notification procedure is triggered to have one or more vicinity base stations of the base station transmitting a first message. And if the transmission power of the base station is to be decreased, a second notification procedure is triggered to have the base station transmitting a second message.
    Type: Application
    Filed: April 16, 2016
    Publication date: September 7, 2017
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yung-Han CHEN, Fang-Ching REN
  • Patent number: 9337973
    Abstract: The present disclosure proposes a method of cooperative MIMO wireless communication, and a base station using the same. A base station would have a plurality of radio remote units (RRUs), and each of the RRUs may have a specific radio coverage and a plurality of antennas coupled to each of the RRUs. The function of the base station may include receiving a UE information, receiving a service flow, deriving a service type of the service flow, and determining a MIMO scheme, modulating the service flow into a MIMO stream according to the MIMO scheme, allocating a plurality of resource blocks, wherein the resource blocks may correspond to a portion or all of the RRUs, distributing the MIMO stream into a plurality of downlink sub streams and transmitting the downlink sub streams through the resource blocks by the RRUs corresponding to the resource blocks.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: May 10, 2016
    Assignee: Industrial Technology Research Institute
    Inventors: Hsin-An Hou, Wan-Yi Lin, Yung-Han Chen
  • Patent number: 8705352
    Abstract: Prioritized random access methods are proposed. According to an embodiment, random access attempts are classified into the priority levels according to delay requirements, and adedicated random access opportunities are reserved for different priority levels. A congestion detecting mechanism is introduced for such dedicated ranging (random access) opportunities. When congestion is detected by the base station, parameters or configurations of random access can be dynamically or temporarily modified through random access response message. Furthermore, a prioritized contention resolution is introduced to guarantee a high priority access is processed earlier than a low priority access. According to another embodiment, another prioritized contention resolution is introduced to reduce the impact of random access of a low priority M2M device upon H2H traffic.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: April 22, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Chun-Yuan Chiu, Yung-Han Chen, Yan-Xiu Zheng, Yu-Chuan Fang
  • Publication number: 20140071912
    Abstract: The present disclosure proposes a method of cooperative MIMO wireless communication, and a base station using the same. A base station would have a plurality of radio remote units (RRUs), and each of the RRUs may have a specific radio coverage and a plurality of antennas coupled to each of the RRUs. The function of the base station may include receiving a UE information, receiving a service flow, deriving a service type of the service flow, and determining a MIMO scheme, modulating the service flow into a MIMO stream according to the MIMO scheme, allocating a plurality of resource blocks, wherein the resource blocks may correspond to a portion or all of the RRUs, distributing the MIMO stream into a plurality of downlink sub streams and transmitting the downlink sub streams through the resource blocks by the RRUs corresponding to the resource blocks.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 13, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Hsin-An Hou, Wan-Yi Lin, Yung-Han Chen
  • Patent number: 8666427
    Abstract: A method for mobile communication and a system thereof are provided. The system for mobile communication includes a main base station and a plurality of sub-communication devices. The sub-communication device is one of a sub-base station and a user equipment. The sub-base stations and the user equipments are located in the macrocell of the main base station. The method includes the following steps. First, locations of the sub-communication devices are obtained. Then, the sub-communication devices are grouped based on the locations of the sub-communication devices. And, an allocation of resource blocks is obtained according to the grouping results. The sub-communication devices receive the allocation of resource blocks for control signaling and data transmission. And, the usage of same resource blocks are enabled by the sub-base station allocated in the same resource blocks in response to receipt of the allocation.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: March 4, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Yan-Xiu Zheng, Yung-Han Chen, Hao-Wen Chen
  • Patent number: 8625556
    Abstract: A signal interference handling method adapted to a cellular system, and a system and an apparatuses using the same are provided, where the cellar system includes a macro/micro cell base station (MBS), a home base station (HBS), and a MBS-served mobile station (m-MS), and the signal interference handling method includes steps. The m-MS detects whether there is mutual interference. The m-MS sends an interference mitigation (IM) request to the HBS if there is mutual interference. The HBS enters a low duty mode (LDM) after the HBS receives the IM request.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: January 7, 2014
    Assignee: Acer Incorporated
    Inventors: Yung-Han Chen, Yan-Xiu Zheng, Chun-Yuan Chiu
  • Patent number: 8588779
    Abstract: A wireless communication system delivering neighbor information (NBR-INF) and a base station and a wireless communication device thereof are proposed. The wireless communication system includes at least a mobile station and a base station. The base station decides delivering the NBR-INF triggered by events, determines type of the NBR-INF to be delivered and determines a delivery rule of the NBR-INF to be delivered. The mobile station, wirelessly connected to the at least a base station, receives the NBR-INF delivered from the at least a base station, and decides to completely renew or partially update its own neighbor information contents.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: November 19, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Yung-Han Chen, Fang-Ching Ren