Patents by Inventor Kai Chou

Kai Chou 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: 20250064421
    Abstract: A calibration device for a medical imaging system is provided. The calibration device includes a structural framework and multiple markers arranged on the structural framework. At least one of the following two conditions are satisfied: at least two markers are with different absorption rates for a radiation used by the medical imaging system; and at least two positions within one of the markers are with different absorption rates for the radiation.
    Type: Application
    Filed: August 27, 2024
    Publication date: February 27, 2025
    Inventors: HAO-KAI CHOU, CHIH-MIN YANG
  • Publication number: 20250064528
    Abstract: A method for navigating an operation performed by a surgical system is provided. The method includes: obtaining an image including a feature on the surgical system; determining, based on encoder outputs of arm joints of the surgical system, a first feature position with respect to a first coordinate system; determining, based on the image, a second feature position with respect to a second coordinate system; determining a transformation relationship between the first and second coordinate systems based on the first and second positions; determining, during the operation, based on the encoder outputs, a position of an instrument used for the operation with respect to the first coordinate system; determining, based on the position and the transformation relationship, another position of the instrument with respect to the second coordinate system; and displaying at least one part of the instrument in an image based on the other position.
    Type: Application
    Filed: August 27, 2024
    Publication date: February 27, 2025
    Inventors: HAO-KAI CHOU, CHIH-MIN YANG
  • Publication number: 20240295368
    Abstract: A water-cooling structure includes a heat sink, a cover plate, a heat exchange module, a retaining wall, and ribs. The heat sink has an inlet hole, an outlet hole, and an inner space which communicates with the inlet hole and the outlet hole. The cover plate is disposed on the heat sink to seal the inner space. The heat exchange module and the retaining wall are disposed on the cover plate and located in the inner space. The inlet hole and the outlet hole are disposed on different sides of the retaining wall. The ribs are disposed on the cover plate and form flow channels in the inner space. A coolant enters the inner space from the inlet hole, enters the flow channels along the retaining wall to contact the heat exchange module, and flows out of the outlet hole after passing through the heat exchange module.
    Type: Application
    Filed: January 12, 2024
    Publication date: September 5, 2024
    Applicant: PEGATRON CORPORATION
    Inventors: Wei-Pang Lee, Shih-Chieh Su, Shih-Kai Chou
  • Publication number: 20240115327
    Abstract: An aiming system includes a positioner, an aiming device, and a processor. The positioner has a function of acquiring spatial information, and the aiming device is connected to the positioner, and the processor is connected to the positioner or the aiming device. A method of using the aiming system is also provided. Surgical guidance is more intuitive by directly combining the positioner with the aiming device.
    Type: Application
    Filed: October 6, 2023
    Publication date: April 11, 2024
    Inventors: Chih Wei CHEN, Hao Kai CHOU, Chih Min YANG
  • Patent number: 11929125
    Abstract: Apparatuses and techniques are described for reducing the number of latches used in sense circuits for a memory device. The number of internal user data latches in a sense circuit is reduced by using an external data transfer latch to store a bit of user data, in place of an internal user data latch. The user data in the data transfer latches identifies a subset of the data states which are not prohibited from having a verify test. The subset is shifted as the program operation proceeds, at specified program loops, to encompass higher data states. The completion of programming by a memory cell is indicated by the user data latches and another internal latch of the sense circuit in place of the external data transfer latch.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: March 12, 2024
    Assignee: SanDisk Technologies LLC
    Inventors: Tai-Yuan Tseng, Chia-Kai Chou, Iris Lu
  • Patent number: 11903591
    Abstract: A surgical power drill system includes a housing unit, a driving unit, a tool holder, and a screw member. The driving unit is movably mounted in the housing unit and includes a motor and a motor shaft coupled to the motor. The driving unit is movable relative to the housing unit between a distal position, where the driving unit is distal from a front end of the housing unit, and a proximate position, where the driving unit is proximate to the front end of the housing unit. The tool holder is coupled to a first end portion of the motor shaft. The screw member is coupled to a second end portion of the motor shaft.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: February 20, 2024
    Assignee: POINT ROBOTICS (SINGAPORE) PTE. LTD.
    Inventors: Chih-Wei Chen, Hao-Kai Chou, Xiu-Yun Xiao
  • Patent number: 11901018
    Abstract: A local data bus of a sense amplifier associated with one bit line is used to perform logical operations for a sensing operation performed by another sense amplifier associated with a different bit line. Each sense amplifier circuit includes a sensing node that is pre-charged, then discharged through a selected memory cell and a local data bus with a number of data latches connected. Target program data can be stored in the latches and combined in logical combinations with the sensed value of the memory cell to determine whether it has verified. By including a transfer circuit between the local data buses of a pair of sense amplifiers, the logical operations of a first sense amplifier can be performed using the local data bus of the paired sense amplifier, freeing the first sense amplifier's sense node to be concurrently pre-charged for a subsequent sensing operation, thereby improving performance.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: February 13, 2024
    Assignee: SanDisk Technologies LLC
    Inventors: Iris Lu, Tai-Yuan Tseng, Chia-Kai Chou
  • Patent number: 11839416
    Abstract: A surgical expandable implant includes a bolt, a movable member, and a support body. The bolt has a bolt body and a fixing member. The movable member is configured to be slidably sleeved on the bolt body. The support body has a first end configured to extend through the fixing member and a second end configured to extend through the movable member. The movable member is configured to slide along the length of the bolt body so as to move the support body from an initial shape to a deformed shape.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: December 12, 2023
    Assignee: POINT ROBOTICS (SINGAPORE) PTE. LTD.
    Inventors: Chih-Wei Chen, Hao-Kai Chou, Xiu-Yun Xiao
  • Patent number: 11759274
    Abstract: A surgical device for retaining a tool, the surgical device comprises a multi-axis manipulator configured to generate relative movement between a moving end and a stationary end thereof; a housing fixed to the stationary end of the manipulator; a motor configured to rotate the tool by a rotating interface when the tool is retained to the rotating interface; an adaptor connected to the manipulator and in orientational fixation to the moving end of the manipulator, the adaptor being configured to move with the moving end, and the adaptor comprises a tool stopper disposed therein, wherein the tool stopper is configured to catch the tool if the tool is dropped from the rotating interface; a tool head latchless interface exposed to a channel of the adaptor and configured to provide attraction force within the channel for retaining the tool to the rotating interface.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: September 19, 2023
    Assignee: POINT ROBOTICS (SINGAPORE) PTE. LTD.
    Inventors: Chih-Wei Chen, Hao-Kai Chou, Xiu-Yun Xiao
  • Publication number: 20230207022
    Abstract: A local data bus of a sense amplifier associated with one bit line is used to perform logical operations for a sensing operation performed by another sense amplifier associated with a different bit line. Each sense amplifier circuit includes a sensing node that is pre-charged, then discharged through a selected memory cell and a local data bus with a number of data latches connected. Target program data can be stored in the latches and combined in logical combinations with the sensed value of the memory cell to determine whether it has verified. By including a transfer circuit between the local data buses of a pair of sense amplifiers, the logical operations of a first sense amplifier can be performed using the local data bus of the paired sense amplifier, freeing the first sense amplifier's sense node to be concurrently pre-charged for a subsequent sensing operation, thereby improving performance.
    Type: Application
    Filed: December 27, 2021
    Publication date: June 29, 2023
    Applicant: SanDisk Technologies LLC
    Inventors: Iris Lu, Tai-Yuan Tseng, Chia-Kai Chou
  • Patent number: 11612438
    Abstract: A navigation method for a medical operation and implemented by a robotic system is provided. The method includes the steps of: receiving, at a processor of the robotic system, at least one set of navigation data; receiving or generating at least one three-dimensional model of the virtual object in the navigation data; calculating the navigation data to generate a virtual environment and at least one navigation instruction; and presenting, at a user interface associated with the robotic system, the virtual environment and/or the navigation instruction to a user of the robotic system for the user to refer to during the medical operation.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: March 28, 2023
    Assignee: POINT ROBOTICS MEDTECH INC.
    Inventors: Shou-An Yu, Bang-Hao Dai, Che-Wei Su, Hao-Kai Chou, Chia-Ho Yen, Chih-Min Yang, Shyue-Cherng Juang
  • Patent number: 11602908
    Abstract: The present disclosure provides a method of mesh generation for an RTM process, including operations of: obtaining a geometry of a target object; generating a solid mesh of the target object according to the geometry; obtaining material characteristics of the target object; assembling a runner mesh with the solid mesh, wherein the runner mesh has grid dimensions different from those of the solid mesh; determining process parameters of the RTM process; and generating a forecasted result of the RTM process according to the solid mesh, the runner mesh, the process parameters, and the material characteristics. Generating the solid mesh includes operations of: dividing the geometry into modules; generating a first and second modular meshes corresponding to a first and second modules, wherein the second modular mesh abuts the first modular mesh, and the second modular mesh has grid dimensions different from those of the first modular mesh.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: March 14, 2023
    Assignee: CORETECH SYSTEM CO., LTD.
    Inventors: Ching-Kai Chou, Chien-Ting Wu, Hsun Yang, Li-Hsuan Shen, Chih-Chung Hsu, Chia-Hsiang Hsu, Rong-Yeu Chang
  • Publication number: 20230058453
    Abstract: The present disclosure provides a method of mesh generation for an RTM process, including operations of: obtaining a geometry of a target object; generating a solid mesh of the target object according to the geometry; obtaining material characteristics of the target object; assembling a runner mesh with the solid mesh, wherein the runner mesh has grid dimensions different from those of the solid mesh; determining process parameters of the RTM process; and generating a forecasted result of the RTM process according to the solid mesh, the runner mesh, the process parameters, and the material characteristics. Generating the solid mesh includes operations of: dividing the geometry into modules; generating a first and second modular meshes corresponding to a first and second modules, wherein the second modular mesh abuts the first modular mesh, and the second modular mesh has grid dimensions different from those of the first modular mesh.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 23, 2023
    Inventors: Ching-Kai CHOU, Chien-Ting WU, Hsun YANG, Li-Hsuan SHEN, Chih-Chung HSU, Chia-Hsiang HSU, Rong-Yeu CHANG
  • Publication number: 20220415415
    Abstract: Apparatuses and techniques are described for reducing the number of latches used in sense circuits for a memory device. The number of internal user data latches in a sense circuit is reduced by using an external data transfer latch to store a bit of user data, in place of an internal user data latch. The user data in the data transfer latches identifies a subset of the data states which are not prohibited from having a verify test. The subset is shifted as the program operation proceeds, at specified program loops, to encompass higher data states. The completion of programming by a memory cell is indicated by the user data latches and another internal latch of the sense circuit in place of the external data transfer latch.
    Type: Application
    Filed: June 23, 2021
    Publication date: December 29, 2022
    Applicant: SanDisk Technologies LLC
    Inventors: Tai-Yuan Tseng, Chia-Kai Chou, Iris Lu
  • Patent number: 11521903
    Abstract: The present disclosure provides a method of measuring a plurality of voids in an underfill material of an underfill package. The method includes operations of obtaining a welding angle profile of the underfill package; obtaining a simulated void profile of the underfill package according to the welding angle profile; determining a plurality of high-risk void regions according to the simulated void profile; simulating, according to a selected pressure and a selected temperature of the underfill material, a first high-risk void region of the plurality of high-risk void regions to generate an updated void profile; and determining whether the updated void profile meets a void requirement of the underfill package.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: December 6, 2022
    Assignee: CORETECH SYSTEM CO., LTD.
    Inventors: Chien-Ting Wu, Ching-Kai Chou, Kai-Yi Bai, Wei-Yu Lin, Li-Hsuan Shen, Chia-Peng Sun, Chih-Chung Hsu, Rong-Yeu Chang, Chia-Hsiang Hsu
  • Patent number: 11523333
    Abstract: The present invention discloses a method for pairing and interconnecting electronic devices, which cooperates with at least two electronic devices that are grouped as a transmitting end and a receiving end respectively, and the transmitting end operates in a first mode. The method for pairing and interconnecting electronic devices comprises at least Step 1 to Step 4. Step 1 refers to searching any available transmitting end in a wireless manner by the receiving end, and displaying a connection name of the transmitting end on the receiving end. Step 2 refers to prompting a dynamic operating instruction by the receiving end. Step 3 refers to executing operation by the transmitting end based on the dynamic operating instruction and thereby issuing an action instruction. Step 4 refers to receiving the action instruction by the receiving end, and establishing a connection with the transmitting end which issues the action instruction.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: December 6, 2022
    Assignee: AVER INFORMATION INC.
    Inventors: Chao-Hung Chang, Chia-Feng Wu, Jhan-Jhang Liao, Lien-Kai Chou, Cheng-Cheng Yu, Cheng-Mou Tsai, Li-Hsueh Yang
  • Publication number: 20220361897
    Abstract: A surgical power drill system includes a housing unit, a driving unit, a tool holder, and a screw member. The driving unit is movably mounted in the housing unit and includes a motor and a motor shaft coupled to the motor. The driving unit is movable relative to the housing unit between a distal position, where the driving unit is distal from a front end of the housing unit, and a proximate position, where the driving unit is proximate to the front end of the housing unit. The tool holder is coupled to a first end portion of the motor shaft. The screw member is coupled to a second end portion of the motor shaft.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 17, 2022
    Inventors: CHIH-WEI CHEN, HAO-KAI CHOU, XIU-YUN XIAO
  • Patent number: 11465939
    Abstract: A repaired reinforced concrete structure is provided which includes one or more reinforcing steel bars of cross-sectional area Ax, the one or more reinforcing steel bars having one or more corroded sections of cross-sectional area Ay, wherein Ay is greater than or equal to approximately 0.6 Ax. A reinforced ordinary Portland cement-based repair mortar is positioned directly on the one or more corroded sections of the one or more reinforcing steel bars without the addition of a lapped reinforcing steel bar. The reinforced repair mortar includes at least approximately 1 percent by volume of reinforcing steel fibers such that the reinforced repair mortar restores a strength of a repaired region to greater than approximately 100% of an original strength of the concrete structure in an uncorroded state. The repaired reinforced concrete structure is highly durable, as the repair mortar exhibits an air permeability resistance of greater than 1000 seconds.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: October 11, 2022
    Assignee: Chun Wo Construction & Engineering Co., Ltd.
    Inventors: Kin Ying Christopher Leung, Honggang Zhu, Yuet Kee Lam, Shue Kai Chou, Kai Yin To
  • Publication number: 20220304756
    Abstract: A surgical device for retaining a tool, the surgical device comprises a multi-axis manipulator configured to generate relative movement between a moving end and a stationary end thereof; a housing fixed to the stationary end of the manipulator; a motor configured to rotate the tool by a rotating interface when the tool is retained to the rotating interface; an adaptor connected to the manipulator and in orientational fixation to the moving end of the manipulator, the adaptor being configured to move with the moving end, and the adaptor comprises a tool stopper disposed therein, wherein the tool stopper is configured to catch the tool if the tool is dropped from the rotating interface; a tool head latchless interface exposed to a channel of the adaptor and configured to provide attraction force within the channel for retaining the tool to the rotating interface.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 29, 2022
    Inventors: CHIH-WEI CHEN, HAO-KAI CHOU, XIU-YUN XIAO
  • Publication number: 20220283401
    Abstract: The present disclosure provides a method for dynamically adjusting a maximum setting magnification of an optical lens, and this method includes steps as follows. The object distance is detected; the maximum setting magnification of the zoom lens is adjusted according to the object distance; after the object distance is changed, the object distance is detected to determine the focus mode.
    Type: Application
    Filed: March 3, 2022
    Publication date: September 8, 2022
    Inventors: Jen-Hung Yeh, Chao-Hung Chang, Lien-Kai Chou