Patents by Inventor Wen-Hsin Chang

Wen-Hsin 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).

  • Publication number: 20250063766
    Abstract: Provided are an electronic/optical device, which is reduced in contact resistance occurring between a layered material layer and a metal electrode layer, and a method of manufacturing the device. The electronic/optical device of the present invention includes a laminated structure in which an intermediate layer is arranged between a layered material layer (2) and a metal electrode layer (3). The intermediate layer is a crystal layer (4) of an intermediate layer-forming material containing: at least one of Sb and Bi; and Te. In addition, the method of manufacturing an electronic/optical device of the present invention includes: an intermediate layer-forming step of forming, on the layered material layer (2), the intermediate layer (crystal layer (4)) obtained by crystallizing an intermediate layer-forming material containing: at least one of Sb and Bi; and Te; and a metal electrode layer-forming step of forming the metal electrode layer (3) on the intermediate layer.
    Type: Application
    Filed: November 16, 2022
    Publication date: February 20, 2025
    Inventors: Wen-Hsin Chang, Toshifumi Irisawa, Naoya Okada, Yuta Saito, Shogo Hatayama
  • Patent number: 11369014
    Abstract: The invention relates to a light beam generating device and method, and a projection device. The light beam generating device is configured to receive a color control signal and generate a target light beam having a target color, and includes a plurality of drivers, a current signal generating circuit, and a control circuit. The drivers respectively drive a plurality of light-emitting elements according to a plurality of current signals, wherein the plurality of light-emitting elements collectively generate the target light beam. The current signal generating circuit is coupled to the drivers and generates the plurality of current signals according to the color control signal corresponding to the target color. The control circuit is coupled to the drivers and controls whether each driver is enabled according to the color control signal.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: June 21, 2022
    Assignee: Coretronic Corporation
    Inventors: Wen-Hsin Chang, Chung-Lin Ke, Shun-Tai Chen, Tung-Yi Lu
  • Patent number: 11335300
    Abstract: A projector and a projection method that effectively protect a to-be-protected object existing in a sensing area are provided. The projector includes a first sensor, a second sensor, an optical engine and a processor. The optical engine includes a light source. The first sensor receives a first sensed signal, generates a first signal corresponding to the first sensed signal and transmits the first signal to the processor. The second sensor receives a second sensed signal different from the first sensed signal, generates a second signal corresponding to the second sensed signal and transmits the second signal to the processor. The processor determines whether the first signal and the second signal fall into their respective pre-determined ranges. The processor transmits a light adjusting signal to control a light source.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: May 17, 2022
    Assignee: Coretronic Corporation
    Inventors: Chen-Yi Hong, Wen-Hsin Chang, An-Kuo Liu, Yu-Sheng Lee
  • Patent number: 11323668
    Abstract: A projection device and a controlling method of the projection device are provided. The projection device includes a light emitting module, a driver, a light valve, a projection lens and a processor. The light emitting module generates a light beam according to a driving current respectively. The driver generates the driving current and transmit the driving current to the light emitting module according to an operating signal. The light valve receives the light beam to form an image light beam. The projection lens projects the image light beam. The processor provides the operating signal with a default period to the driver and provides an operation of the light valve. According to the operating signal or the operation of the light valve, the driver generates the driving current lower than a default current during a first time interval in the default period.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: May 3, 2022
    Assignee: Coretronic Corporation
    Inventors: Wen-Hsin Chang, Shun-Tai Chen, Tung-Yi Lu, Chen-Yi Hong
  • Patent number: 11317487
    Abstract: A driving device is provided. The driving device includes a signal processing circuit and a driving circuit. The signal processing circuit is configured to generate a current input signal according to a target current signal. The driving circuit is configured to receive the current input signal and generate a current output signal according to the current input signal to drive a light emitting element. In a first time interval, the current input signal gradually rises from a first current value to a target current value in a continuous or segmented manner according to a rising slope. Further, a control method of the driving device and a lighting system including the driving device are also provided.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: April 26, 2022
    Assignee: Coretronic Corporation
    Inventors: Wen-Hsin Chang, Shun-Tai Chen, Chung-Lin Ke, Yi-Yuan Peng
  • Publication number: 20220022297
    Abstract: The invention relates to a light beam generating device and method, and a projection device. The light beam generating device is configured to receive a color control signal and generate a target light beam having a target color, and includes a plurality of drivers, a current signal generating circuit, and a control circuit. The drivers respectively drive a plurality of light-emitting elements according to a plurality of current signals, wherein the plurality of light-emitting elements collectively generate the target light beam. The current signal generating circuit is coupled to the drivers and generates the plurality of current signals according to the color control signal corresponding to the target color. The control circuit is coupled to the drivers and controls whether each driver is enabled according to the color control signal.
    Type: Application
    Filed: February 3, 2021
    Publication date: January 20, 2022
    Applicant: Coretronic Corporation
    Inventors: Wen-Hsin Chang, Chung-Lin Ke, Shun-Tai Chen, Tung-Yi Lu
  • Publication number: 20210092332
    Abstract: A projection device and a controlling method of the projection device are provided. The projection device includes a light emitting module, a driver, a light valve, a projection lens and a processor. The light emitting module generates a light beam according to a driving current respectively. The driver generates the driving current and transmit the driving current to the light emitting module according to an operating signal. The light valve receives the light beam to form an image light beam. The projection lens projects the image light beam. The processor provides the operating signal with a default period to the driver and provides an operating of the light valve. According to the operating signal or the operating of the light valve, the driver generates the driving current lower than a default current during a first time interval in the default period.
    Type: Application
    Filed: March 30, 2020
    Publication date: March 25, 2021
    Applicant: Coretronic Corporation
    Inventors: Wen-Hsin Chang, Shun-Tai Chen, Tung-Yi Lu, Chen-Yi Hong
  • Patent number: 10712970
    Abstract: The present invention provides a flash memory controller including an artificial intelligence (AI) module and a microprocessor. In the operations of the flash memory controller, the AI module receives data from a host device, and determines if the data is important data or unimportant data to generate a determination result. The microprocessor is configured to write the data into a flash memory module according to the determination result, wherein the flash memory module comprises a plurality of first blocks and a plurality of second blocks, and quantity of bits stored in each memory cell within the first blocks is lower than quantity of bits stored in each memory cell within the second blocks. When the determination result indicates that the data is the important data, the microprocessor only stores the data into at least one of the first blocks.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: July 14, 2020
    Assignee: RAYMX MICROELECTRONICS CORP.
    Inventors: Wen-Hsin Chang, Yen-Chung Chen, Wei-Ren Hsu, Yufeng Zhou
  • Patent number: 10643086
    Abstract: A device unlocking method utilizing ultrasound imaging. A device detects a cavity structure of a user using ultrasound imaging and utilizes a cavity model of the cavity structure for biometrics authentication. The cavity model of the user be stored in a mass storage and forms a basis for similarity comparison with other ultrasound detected cavity structures. The device allows device unlocking when a subsequently detect cavity structure matches the cavity model.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: May 5, 2020
    Assignee: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD.
    Inventors: Wen-Hsin Chang, Chang-Te Wu
  • Publication number: 20200125150
    Abstract: A power quality detecting system includes a power module, a storage device, and a power quality detecting module. The power module receives an external power source. The power module converts the external power source into a first internal voltage. The power quality detecting module is electrically connected to the power module and the storage device. The storage device is electrically connected to the power module for receiving the first internal voltage through the power quality detecting module. The power quality detecting module determines whether a first alarm signal is transmitted according to a quality parameter of the first internal voltage.
    Type: Application
    Filed: June 26, 2019
    Publication date: April 23, 2020
    Inventors: Yen-Chung CHEN, Wen-Hsin CHANG, Tzu-Yu CHAO, Li-Chun HUANG
  • Publication number: 20200118524
    Abstract: A projector and a projection method that effectively protect a to-be-protected object existing in a sensing area are provided. The projector includes a first sensor, a second sensor, an optical engine and a processor. The optical engine includes a light source. The first sensor receives a first sensed signal, generates a first signal corresponding to the first sensed signal and transmits the first signal to the processor. The second sensor receives a second sensed signal different from the first sensed signal, generates a second signal corresponding to the second sensed signal and transmits the second signal to the processor. The processor determines whether the first signal and the second signal fall into their respective pre-determined ranges. The processor transmits a light adjusting signal to control a light source.
    Type: Application
    Filed: October 14, 2019
    Publication date: April 16, 2020
    Applicant: Coretronic Corporation
    Inventors: Chen-Yi Hong, Wen-Hsin Chang, An-Kuo Liu, Yu-Sheng Lee
  • Patent number: 10610863
    Abstract: An automatic microfluidic system for antibiotic susceptibility testing of the present disclosure at least includes a microfluidic chip. The microfluidic chip includes a fluid storage unit, a reaction unit, a pneumatic micro-pumping unit and a plurality of valve units. The fluid storage unit is provided for storing a bacterial suspension, a broth and an antibiotic solution. The reaction unit includes a first reaction chamber and at least two second reaction chambers. The pneumatic micro-pumping unit is adjacently disposed to the fluid storage unit and the reaction unit for selectively, repeatedly and quantitatively transporting the broth, the bacterial suspension and the antibiotic solution to the reaction unit to form a first mixing solution and at least two second mixing solutions. The valve units include a plurality of pneumatic micro-valves and a plurality of valve control air holes for controlling the opening and closing of the pneumatic micro-valves.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: April 7, 2020
    Assignees: NATIONAL TSING HUA UNIVERSITY, Kaohsiung Chang Gung Memorial Hospital
    Inventors: Gwo-Bin Lee, Shiuann-Sheng Lee, Wen-Bin Lee, Wen-Hsin Chang
  • Publication number: 20200099901
    Abstract: A projection device and a light source module thereof and a method for synchronizing a wavelength conversion wheel and a filter wheel are provided. A rotation state of the wavelength conversion wheel and a rotation state of the filter wheel are detected to generate a first position signal and a second position signal, respectively. A control unit is used to control one of the wavelength conversion wheel and the filter wheel to rotate. A micro control unit is used to control the other one of the wavelength conversion wheel and the filter wheel to rotate according to the first position signal and the second position signal, so that the wavelength conversion wheel and the filter wheel rotate synchronously. The disclosure enables the wavelength conversion wheel and the filter wheel to synchronize in the circumstances where the control unit only supports controlling of one wavelength conversion wheel or filter wheel.
    Type: Application
    Filed: September 23, 2019
    Publication date: March 26, 2020
    Applicant: Coretronic Corporation
    Inventors: Tung-Yi Lu, Shun-Tai Chen, Chen-Yi Hong, Wen-Hsin Chang
  • Publication number: 20200073571
    Abstract: The present invention provides a memory controller including an artificial intelligence (AI) module and a microprocessor. In the operations of the memory controller, the AI module is arranged to determine a first user behavior model or a second user behavior model to generate a determination result according to a plurality of access commands and/or a plurality of parameters of a memory module controlled by the memory module. When the determination result indicates the first user behavior model, the microprocessor uses a first control strategy to control the memory module; and when the determination result indicates the second user behavior model, the microprocessor uses a second control strategy different from the first control strategy to control the memory module.
    Type: Application
    Filed: July 24, 2019
    Publication date: March 5, 2020
    Inventors: Yen-Chung CHEN, Han-Ting TSAI, Wei-Ren HSU, Wen-Hsin CHANG
  • Publication number: 20200073582
    Abstract: The present invention provides a flash memory controller including an artificial intelligence (AI) module and a microprocessor. In the operations of the flash memory controller, the AI module receives data from a host device, and determines if the data is important data or unimportant data to generate a determination result. The microprocessor is configured to write the data into a flash memory module according to the determination result, wherein the flash memory module comprises a plurality of first blocks and a plurality of second blocks, and quantity of bits stored in each memory cell within the first blocks is lower than quantity of bits stored in each memory cell within the second blocks. When the determination result indicates that the data is the important data, the microprocessor only stores the data into at least one of the first blocks.
    Type: Application
    Filed: October 30, 2018
    Publication date: March 5, 2020
    Inventors: Wen-Hsin Chang, Yen-Chung Chen, Wei-Ren Hsu, YUFENG ZHOU
  • Patent number: 10387111
    Abstract: A method for adjusting the output of sound to allow for orientation and reorientation of a sound source device in relation to a listener comprises the control of sound generators in the device to output successive sounds to ambient environment and collect the sound echoes from listening surfaces of user to form a lookup history. Horizontal distance ? and an included angle ? between the electronic device and the ear cavities or other surfaces of user, and a vertical displacement d of the electronic device are calculated. Horizontal distance difference ?? and a Doppler factor D are further calculated. A gas generator is controlled to input gas into deformable areas of platform which holds the sound generators to allow for instant particular orientations. A shape deformation factor S of the deformable areas is determined. Original factory settings of the device can be adjusted according to instant calculations and lookup history.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: August 20, 2019
    Assignee: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD.
    Inventors: Wen-Hsin Chang, Chang-Te Wu
  • Patent number: 10031663
    Abstract: An interface operating control device applied in an electronic device with an interface includes a sensing module, a recognizing module, a bottom layer executing module, and an operating module. The sensing module outputs sensing signal when a distance between the object and the interface is less than a preset distance. The recognizing module receives the sensing signal and acquires operating characteristics of the object according the sensing signal. The bottom layer executing module boots an application mode corresponding to the operating characteristics acquired currently. The operating module determines different intensity applied on the interface by the object according to total areas touching on the interface, and executes different operation instructions of the application mode currently operating according to the different intensity. Therefore, a system of the electronic device can be accessed rapidly and conveniently, and the users can get abundant operations and experiences.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: July 24, 2018
    Assignee: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD.
    Inventor: Wen-Hsin Chang
  • Publication number: 20180142279
    Abstract: An automatic microfluidic system for antibiotic susceptibility testing of the present disclosure at least includes a microfluidic chip. The microfluidic chip includes a fluid storage unit, a reaction unit, a pneumatic micro-pumping unit and a plurality of valve units. The fluid storage unit is provided for storing a bacterial suspension, a broth and an antibiotic solution. The reaction unit includes a first reaction chamber and at least two second reaction chambers. The pneumatic micro-pumping unit is adjacently disposed to the fluid storage unit and the reaction unit for selectively, repeatedly and quantitatively transporting the broth, the bacterial suspension and the antibiotic solution to the reaction unit to form a first mixing solution and at least two second mixing solutions. The valve units include a plurality of pneumatic micro-valves and a plurality of valve control air holes for controlling the opening and closing of the pneumatic micro-valves.
    Type: Application
    Filed: May 1, 2017
    Publication date: May 24, 2018
    Inventors: Gwo-Bin LEE, Shiuann-Sheng LEE, Wen-Bin LEE, Wen-Hsin CHANG
  • Patent number: 9778296
    Abstract: A method for obtaining plug combination of detecting apparatus, a method for obtaining power line topology and an electronic apparatus using the same are provided. The method for obtaining plug combination of detecting apparatus includes the following steps: retrieving a first amount of at least one detecting apparatus and a second amount of at least one socket; generating plug combinations between the at least one detecting apparatus and the at least one socket; calculating a total socket relationship value according to the second amount; setting specific plug times and a specific socket relationship value of a specific plug combination according to the first amount; and finding a candidate plug combination among reference plug combinations according to the specific socket relationship value, the total socket relationship value and a distance between the specific plug combination and each of the reference plug combinations.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 3, 2017
    Assignee: National Chiao Tung University
    Inventors: Wen-Hsin Chang, Yung-Chi Chen, Shiao-Li Tsao
  • Publication number: 20170269808
    Abstract: An interface operating control device applied in an electronic device with an interface includes a sensing module, a recognizing module, a bottom layer executing module, and an operating module. The sensing module outputs sensing signal when a distance between the object and the interface is less than a preset distance. The recognizing module receives the sensing signal and acquires operating characteristics of the object according the sensing signal. The bottom layer executing module boots an application mode corresponding to the operating characteristics acquired currently. The operating module determines different intensity applied on the interface by the object according to total areas touching on the interface, and executes different operation instructions of the application mode currently operating according to the different intensity. Therefore, a system of the electronic device can be accessed rapidly and conveniently, and the users can get abundant operations and experiences.
    Type: Application
    Filed: April 29, 2016
    Publication date: September 21, 2017
    Inventor: WEN-HSIN CHANG