Patents by Inventor Kai-Hsiang Chou

Kai-Hsiang 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: 20250149008
    Abstract: A method for displaying a video stream on a display device with a variable refresh rate function is provided. The method includes: receiving the video stream and decoding the video stream to generate a plurality of decoded video frames; determining a frame ready time for each of the decoded video frames; determining a frame display time for each of the decoded video frames; determining a target refresh rate for the display device based on a frame latency between the frame ready time and the frame display time corresponding to at least one of the decoded video frames; and controlling the display device to display the video stream at the target refresh rate.
    Type: Application
    Filed: April 11, 2024
    Publication date: May 8, 2025
    Applicant: Realtek Semiconductor Corp.
    Inventors: Po-Hsin Luo, Kai-Hsiang Chou
  • Publication number: 20250142163
    Abstract: A setup method of a display device includes the following steps. A remote control device transmits a setting command to a smart device through a transmission interface. The smart device converts the setting command into a display setting command. The smart device transmits the display setting command to the display device, in which a first connector of the smart device is physically connected to a second connector of the display device. The display device correspondingly performs a firmware update operation or correspondingly adjusts at least one parameter of the display device according to the display setting command.
    Type: Application
    Filed: April 30, 2024
    Publication date: May 1, 2025
    Inventors: Kai-Hsiang CHOU, Cheng Yu YEN
  • Patent number: 12273699
    Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A recognizer circuit analyzes the ambient image to obtain from the target space, the location, size, and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform a channel-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: April 8, 2025
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Kai-Hsiang Chou
  • Patent number: 12238505
    Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A recognizer circuit analyzes the ambient image to obtain from the target space, the location, size and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform an object-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: February 25, 2025
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Kai-Hsiang Chou
  • Patent number: 12212951
    Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A control circuit utilizes a user interface circuit to perform a configuration procedure which determines location, size and acoustic attribute information of an ambient object, and the control circuit accordingly performs a channel-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: January 28, 2025
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Kai-Hsiang Chou
  • Patent number: 12142873
    Abstract: An electronic device and a waterproof member of the electronic device are provided. The electronic device includes a device body, a cable, and a waterproof member. The device body includes a socket. The cable includes a plug unit and a cable body. The plug unit is disposed at one end of the cable body and is adapted to be connected to the socket. The waterproof member is sleeved over at least a portion of the plug unit and includes an elastic material.
    Type: Grant
    Filed: April 18, 2022
    Date of Patent: November 12, 2024
    Assignee: WISTRON NEWEB CORP.
    Inventors: Te-Wei Chen, Kai-Hsiang Chou
  • Patent number: 12096203
    Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A control circuit utilizes a user interface circuit to perform a configuration procedure which determines location, size and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform an object-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: September 17, 2024
    Assignee: Realtek Semiconductor Corp.
    Inventor: Kai-Hsiang Chou
  • Publication number: 20240187609
    Abstract: A video encoder and a video decoder are configured to take the variations in the third-dimensional parts of video frames into consideration. The video encoder determines how to generate compressed data of a late video frame according to a three-dimensional difference between an early video frame and the late video frame, and the video encoder includes a decision circuit and an encoding circuit. The decision circuit generates a decision result according to the three-dimensional difference between the early video frame and the late video frame. The encoding circuit performs a three-dimensional compression process to the late video frame when the decision result indicates that the three-dimensional difference satisfies a predetermined condition, and the encoding circuit performs a routine compression process to the late video frame when the three-dimensional difference does not satisfy the predetermined condition.
    Type: Application
    Filed: May 12, 2023
    Publication date: June 6, 2024
    Inventor: KAI-HSIANG CHOU
  • Publication number: 20230261411
    Abstract: An electronic device and a waterproof member of the electronic device are provided. The electronic device includes a device body, a cable, and a waterproof member. The device body includes a socket. The cable includes a plug unit and a cable body. The plug unit is disposed at one end of the cable body and is adapted to be connected to the socket. The waterproof member is sleeved over at least a portion of the plug unit and includes an elastic material.
    Type: Application
    Filed: April 18, 2022
    Publication date: August 17, 2023
    Inventors: Te-Wei CHEN, Kai-Hsiang CHOU
  • Publication number: 20230211473
    Abstract: A carrying device is provided. The carrying device includes a stand, an upper clamp connected to the stand, a lower clamp assembled to the stand, a manipulation mechanism assembled to the stand and interlinked with the lower clamp, and a supporting column assembled to the lower clamp. The manipulation mechanism can drive the lower clamp to move relative to the upper clamp, and the upper clamp and the lower clamp jointly define a receiving space therebetween. The supporting column is movable relative to the lower clamp, so that the carrying device can be adjusted in a first clamping mode or a second clamping mode. When the carrying device is in the first clamping mode, the supporting column is located in the receiving space and faces toward the upper clamp, so that the supporting column and the upper clamp can jointly clamp a plate part of a first structure.
    Type: Application
    Filed: August 3, 2022
    Publication date: July 6, 2023
    Inventors: Kai-Hsiang CHOU, Jen-Yung CHANG, Bau-Yi HUANG, Feng-Ming CHANG
  • Publication number: 20230199422
    Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A recognizer circuit analyzes the ambient image to obtain from the target space, the location, size and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform an object-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.
    Type: Application
    Filed: November 23, 2022
    Publication date: June 22, 2023
    Applicant: Realtek Semiconductor Corp.
    Inventor: Kai-Hsiang CHOU
  • Publication number: 20230188922
    Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A control circuit utilizes a user interface circuit to perform a configuration procedure which determines location, size and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform an object-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.
    Type: Application
    Filed: November 23, 2022
    Publication date: June 15, 2023
    Applicant: Realtek Semiconductor Corp.
    Inventor: Kai-Hsiang CHOU
  • Publication number: 20230188921
    Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A control circuit utilizes a user interface circuit to perform a configuration procedure which determines location, size and acoustic attribute information of an ambient object, and the control circuit accordingly performs a channel-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.
    Type: Application
    Filed: November 23, 2022
    Publication date: June 15, 2023
    Applicant: Realtek Semiconductor Corp.
    Inventor: Kai-Hsiang CHOU
  • Publication number: 20230188923
    Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A recognizer circuit analyzes the ambient image to obtain from the target space, the location, size, and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform a channel-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.
    Type: Application
    Filed: November 23, 2022
    Publication date: June 15, 2023
    Applicant: Realtek Semiconductor Corp.
    Inventor: Kai-Hsiang CHOU
  • Patent number: 11455034
    Abstract: A method for setting a display mode of a device according to facial features and an electronic device for the same are provided. The electronic device uses a camera unit to capture a facial image of a user for identifying facial organs. Then, a relative angle of the user's eyes viewing the image can be determined. After that, a turning signal can be provided according to an angle of the user's eyes viewing the image, and the state of the device. A display unit is driven to display a landscape mode image or a portrait mode image in response to the turning signal. Alternatively, a driving mechanism of the electronic device can be controlled and the electronic device is turned to a specific angle.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: September 27, 2022
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Kai-Hsiang Chou
  • Patent number: 11455179
    Abstract: A processing system and a processing method for a user interface are provided. The processing method includes a learning phase and an application phase. After a specific model is established in the learning phase, the user interface with specific meanings such as closing and rejection can be automatically found in the application phase for performing an emphasis process.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: September 27, 2022
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Kai-Hsiang Chou
  • Publication number: 20220283824
    Abstract: A processing system and a processing method for a user interface are provided. The processing method includes a learning phase and an application phase. After a specific model is established in the learning phase, the user interface with specific meanings such as closing and rejection can be automatically found in the application phase for performing an emphasis process.
    Type: Application
    Filed: September 15, 2021
    Publication date: September 8, 2022
    Inventor: KAI-HSIANG CHOU
  • Patent number: 11418639
    Abstract: Disclosed is a network data playback system including a network circuit, a master device, and a slave device. The network circuit is configured to provide network resources for the master device and slave device and can be included in or independent of the master device. The master device is configured to select a Uniform Resource Locator (URL) and actively/passively inform the slave device of the URL. The slave device is configured to execute the following steps: if an estimated distance between the slave device and the network circuit is shorter than a threshold, obtaining data (e.g., multimedia data) related to the URL through the network circuit and then processing the data; and if the estimated distance is longer than the threshold, searching for and/or choosing another network circuit to try to continue processing the data related to the URL through the another network circuit.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: August 16, 2022
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Kai-Hsiang Chou, Po-Hsin Luo
  • Patent number: 11381942
    Abstract: Disclosed is a playback system including a master device and slave devices. The master device executes the following steps: selecting data for playback; obtaining the position information of the slave devices through a wireless positioning technique; ascertaining a distribution pattern according to the position information; comparing the distribution pattern with at least a part of the patterns of multiple predetermined modes and thereby selecting one from the predetermined modes as a playback mode; and determining the playback parameters of the slave devices according to the position information and the playback mode, or notifying the slave devices of their playback roles based on the playback mode and the position information to let the slave devices determine their own playback parameters. Each slave device includes a wireless communication circuit available to the wireless positioning technique, and the slave devices play synchronously according to the master device's control.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: July 5, 2022
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Kai-Hsiang Chou, Po-Hsin Luo
  • Publication number: 20210286428
    Abstract: A method for setting a display mode of a device according to facial features and an electronic device for the same are provided. The electronic device uses a camera unit to capture a facial image of a user for identifying facial organs. Then, a relative angle of the user's eyes viewing the image can be determined. After that, a turning signal can be provided according to an angle of the user's eyes viewing the image, and the state of the device. A display unit is driven to display a landscape mode image or a portrait mode image in response to the turning signal. Alternatively, a driving mechanism of the electronic device can be controlled and the electronic device is turned to a specific angle.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 16, 2021
    Inventor: KAI-HSIANG CHOU