Patents by Inventor Wei-Jen Chang

Wei-Jen 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: 11630504
    Abstract: The disclosure provides a handheld input device and an electronic system. The handheld input device includes a pen-shaped body, a flexible displacement sensor, and a processor. The flexible displacement sensor is disposed on the pen-shaped body, wherein the flexible displacement sensor deforms in response to a pressing force applied onto the flexible displacement sensor. The processor is coupled to the flexible pressure sensor and disposed in the pen-shaped body, wherein the processor is configured to perform: obtaining a specific displacement of the flexible displacement sensor; determining a stroke size of a representative object in a virtual environment based on the specific displacement of the flexible displacement sensor, wherein the representative object corresponds to the handheld device.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: April 18, 2023
    Assignee: HTC Corporation
    Inventors: Wei-Jen Chang, Fu-Cheng Fan
  • Publication number: 20230104261
    Abstract: A single inductor multiple output regulator includes an inductor, a number of capacitors, a number of switches coupled with the capacitors and a control circuit coupled with the switches and configured to apply at least two multi-switching pulses to a multi-pulse controlled one of the switches in each cycle.
    Type: Application
    Filed: October 1, 2021
    Publication date: April 6, 2023
    Inventors: Wei-Jen CHANG, Wei-Yu CHEN, Hao-Hung LO, Tsung-Ling LI, Po-Hung CHEN
  • Patent number: 11609429
    Abstract: A display device includes a display, an image beam shifter, and a light guiding component. The display generates an image beam. The image beam shifter receives the image beam and generates a projected image beam. The light guiding component receives the projected image beam to transport the projected image beam to different positions of a target zone in sequence. The image beam shifter projects the projected image beam to different positions of the light guiding component with time division.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 21, 2023
    Assignee: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Bao-Jen Shih, Fu-Cheng Fan
  • Patent number: 11531205
    Abstract: A head mounted display device includes a display, a light waveguide element, and a light shutter. The display periodically provides a display image. The light waveguide element receives the display image, generates a projection image according to the display image, projects the projection image from a second surface, and projects the projection image to a target zone from a first surface. The light shutter is adjacent to the second surface of the light waveguide element and is coupled to the light waveguide element. The light shutter is periodically disabled and enabled in an alternating manner.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: December 20, 2022
    Assignee: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Fu-Cheng Fan
  • Publication number: 20220357390
    Abstract: A device may generate, using a random telegraph signal (RTS) noise generator, a simulated RTS noise as input to a transistor included in an electronic circuit. The device may determine, based on the simulated RTS noise input to the transistor, a simulated output signal from the transistor.
    Type: Application
    Filed: May 6, 2021
    Publication date: November 10, 2022
    Inventors: Chien-Ming HUNG, Ming-Long FAN, Meng-Lin LU, Ya-Chin LIANG, Wai-Kit LEE, Jyun-Yan KUO, Wei-Jen CHANG, Chung-Shi CHIANG
  • Publication number: 20220300065
    Abstract: The disclosure provides a handheld input device and an electronic system. The handheld input device includes a pen-shaped body, a flexible displacement sensor, and a processor. The flexible displacement sensor is disposed on the pen-shaped body, wherein the flexible displacement sensor deforms in response to a pressing force applied onto the flexible displacement sensor. The processor is coupled to the flexible pressure sensor and disposed in the pen-shaped body, wherein the processor is configured to perform: obtaining a specific displacement of the flexible displacement sensor; determining a stroke size of a representative object in a virtual environment based on the specific displacement of the flexible displacement sensor, wherein the representative object corresponds to the handheld device.
    Type: Application
    Filed: August 26, 2021
    Publication date: September 22, 2022
    Applicant: HTC Corporation
    Inventors: Wei-Jen Chang, Fu-Cheng Fan
  • Patent number: 11415806
    Abstract: A head mounted display apparatus includes a display, a focus adjuster and a controller. The display generates a display image. The focus adjuster is disposed between a target zone and the display, and is configured to adjust a position of a focus plan of the display image according to a control signal. The controller generates the control signal according to vision depth information.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: August 16, 2022
    Assignee: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Fu-Cheng Fan
  • Publication number: 20220252883
    Abstract: A head mounted display apparatus includes a display, a focus adjuster and a controller. The display generates a display image. The focus adjuster is disposed between a target zone and the display, and is configured to adjust a position of a focus plan of the display image according to a control signal. The controller generates the control signal according to vision depth information.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 11, 2022
    Applicant: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Fu-Cheng Fan
  • Publication number: 20220229302
    Abstract: A head mounted display device includes a display, a light waveguide element, and a light shutter. The display periodically provides a display image. The light waveguide element receives the display image, generates a projection image according to the display image, projects the projection image from a second surface, and projects the projection image to a target zone from a first surface. The light shutter is adjacent to the second surface of the light waveguide element and is coupled to the light waveguide element. The light shutter is periodically disabled and enabled in an alternating manner.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Applicant: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Fu-Cheng Fan
  • Patent number: 11360311
    Abstract: A head mounted display device includes a display, a light waveguide element, and a light shutter. The display periodically provides a display image. The light waveguide element receives the display image, generates a projection image according to the display image, projects the projection image from a second surface, and projects the projection image to a target zone from a first surface. The light shutter is adjacent to the second surface of the light waveguide element and is coupled to the light waveguide element. The light shutter is periodically disabled and enabled in an alternating manner.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: June 14, 2022
    Assignee: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Fu-Cheng Fan
  • Patent number: 11172718
    Abstract: A wearable display device includes a wearing device, a linking-lever set, a bracket and an optical imaging device. The linking-lever set includes a first rod and a second rod, and the first rod is pivotally connected to the wearing device and the second rod, respectively. The bracket is fixedly connected to the optical imaging device, and is pivotally connected to the second rod of the at least one linking-lever set.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: November 16, 2021
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chun-Lung Chen, Yuan-Peng Yu, Wei-Jen Chang, Hung-Chieh Wu
  • Publication number: 20210208401
    Abstract: A head mounted display device includes a display, a light waveguide element, and a light shutter. The display periodically provides a display image. The light waveguide element receives the display image, generates a projection image according to the display image, projects the projection image from a second surface, and projects the projection image to a target zone from a first surface. The light shutter is adjacent to the second surface of the light waveguide element and is coupled to the light waveguide element. The light shutter is periodically disabled and enabled in an alternating manner.
    Type: Application
    Filed: November 19, 2020
    Publication date: July 8, 2021
    Applicant: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Fu-Cheng Fan
  • Patent number: 11044960
    Abstract: A wearable display device includes a wearing device, a fixed frame, a sliding member, a bracket and an optical imaging device. The fixed frame is fixedly connected to the wearing device. The sliding member is slidably coupled to the fixed frame. The bracket is pivotally connected to the sliding member and is interlocked with the sliding member. The optical imaging device is fixedly connected to the bracket for sliding and rotating relative to the fixed frame.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: June 29, 2021
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chun-Lung Chen, Yuan-Peng Yu, Wei-Jen Chang, Hung-Chieh Wu
  • Patent number: 10983299
    Abstract: A head-mounted display apparatus includes a wearing device, a display-source arrangement portion and an optical assembly. The wearing device has a head-wearing portion and a hat brim portion connected to the head-wearing portion. The display-source arrangement portion is connected with the hat brim portion. The optical assembly is movably disposed on the hat brim portion, and arranged between the head-wearing portion and the display-source arrangement portion.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: April 20, 2021
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chun-Lung Chen, Yuan-Peng Yu, Wei-Jen Chang, Hung-Chieh Wu
  • Publication number: 20210055556
    Abstract: A display device includes a display, an image beam shifter, and a light guiding component. The display generates an image beam. The image beam shifter receives the image beam and generates a projected image beam. The light guiding component receives the projected image beam to transport the projected image beam to different positions of a target zone in sequence. The image beam shifter projects the projected image beam to different positions of the light guiding component with time division.
    Type: Application
    Filed: June 11, 2020
    Publication date: February 25, 2021
    Applicant: HTC Corporation
    Inventors: Cheng-Hsiu Tsai, Wei-Jen Chang, Bao-Jen Shih, Fu-Cheng Fan
  • Patent number: 10803833
    Abstract: A display system includes first and second systems. First system includes first panel, first set of gate driver circuits, and first set of integrated source driver circuits, Second system includes second panel, second set of gate driver circuits, and second set of integrated source driver circuits. First set of integrated source driver circuits are cascaded-connected; the second set of integrated source driver circuits are cascaded-connected; a last one in the first set of integrated source driver circuits is coupled to a first one of the second set of integrated source driver circuits via an auxiliary communication port based on an auxiliary communication protocol; an auxiliary communication signal having frame start, frame resolution information of first system, and a system enable bit of first system is transmitted to second system via auxiliary communication port to synchronize image display operation of first system with image display operation of second system.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: October 13, 2020
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Wei-Jen Chang, Kuo-Tung Hsu
  • Patent number: 10777121
    Abstract: The present invention provides a protection circuit and related operation control method to enable the PFM circuit when the operating duration of the PFM circuit is not greater than a first threshold, and disables the PFM circuit when a rest duration of the PFM circuit is not greater than a second threshold. The present invention further provides a protection circuit and related operation control method to avoid starting excessive vertical scanning operations within one frame scanning period by masking one of the gate scanning start signal STV, the gate clock signal CKV and the gate discharge signal OEV. The present invention further provides a protection circuit and related operation control method to disable the gate scanning start signal STV when the number of clock cycles is not equal to a target number of clock cycles, which protects the gate driver from overload.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: September 15, 2020
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chi-Hung Liao, Chang-Lung Wu, Jen-Chun Peng, Huan-Sen Liao, Kuo-Tung Hsu, Wei-Jen Chang
  • Patent number: 10771773
    Abstract: A head-mounted display device including a display system and a light modulator is provided. The display system is configured to selectively display a first content to be visually recognized as being superimposed on a scenery of a surrounding environment, or not display the first content. The light modulator, positioned between the display system and the surrounding environment, includes an array of pixels, wherein a portion of the pixels is configured to modulate light to present a display of a second content, while the rest of the pixels are configured to be substantially transparent to light.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: September 8, 2020
    Assignee: HTC Corporation
    Inventors: Bo-Wen Xiao, Fu-Cheng Fan, Chun-Ta Lin, Wei-Jen Chang
  • Publication number: 20200214381
    Abstract: A wearable display device includes a wearing device, a linking-lever set, a bracket and an optical imaging device. The linking-lever set includes a first rod and a second rod, and the first rod is pivotally connected to the wearing device and the second rod, respectively. The bracket is fixedly connected to the optical imaging device, and is pivotally connected to the second rod of the at least one linking-lever set.
    Type: Application
    Filed: April 16, 2019
    Publication date: July 9, 2020
    Applicant: Quanta Computer Inc.
    Inventors: Chun-Lung CHEN, Yuan-Peng YU, Wei-Jen CHANG, Hung-Chieh WU
  • Publication number: 20200209509
    Abstract: A head-mounted display apparatus includes a wearing device, a display-source arrangement portion and an optical assembly. The wearing device has a head-wearing portion and a hat brim portion connected to the head-wearing portion. The display-source arrangement portion is connected with the hat brim portion. The optical assembly is movably disposed on the hat brim portion, and arranged between the head-wearing portion and the display-source arrangement portion.
    Type: Application
    Filed: May 8, 2019
    Publication date: July 2, 2020
    Applicant: Quanta Computer Inc.
    Inventors: Chun-Lung CHEN, Yuan-Peng YU, Wei-Jen CHANG, Hung-Chieh WU