Patents by Inventor Chun-Chieh Chan

Chun-Chieh Chan 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: 11955245
    Abstract: A method and a system for mental index prediction are provided. The method includes the following steps. A plurality of images of a subject person are obtained. A plurality of emotion tags of the subject person in the images are analyzed. A plurality of integrated emotion tags in a plurality of predetermined time periods are calculated according to the emotion tags respectively corresponding to the images. A plurality of preferred features are determined according to the integrated emotion tags. A mental index prediction model is established according to the preferred features to predict a mental index according to the emotional index prediction model.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: April 9, 2024
    Assignees: Acer Incorporated, National Yang Ming Chiao Tung University
    Inventors: Chun-Hsien Li, Szu-Chieh Wang, Andy Ho, Liang-Kung Chen, Jun-Hong Chen, Li-Ning Peng, Tsung-Han Yang, Yun-Hsuan Chan, Tsung-Hsien Tsai
  • Patent number: 11946945
    Abstract: A sample analyzing method and a sample preparing method are provided. The sample analyzing method includes a sample preparing step, a placing step, and an analyzing step. The sample preparing step includes an obtaining step implemented by obtaining an identification information; and a marking and placing step implemented by placing a sample carrying component having a sample disposed thereon into a marking equipment, allowing the marking equipment to utilize the identification information to form an identification structure on the sample carrying component, and placing the sample carrying component into one of the accommodating slots according to the identification information. The placing step is implemented by taking out the sample carrying component from one of the accommodating slots and placing the sample carrying component into an electron microscope equipment. The analyzing step is implemented by utilizing the electron microscope equipment to photograph the sample to generate an analyzation image.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: April 2, 2024
    Assignee: MATERIALS ANALYSIS TECHNOLOGY INC.
    Inventors: Keng-Chieh Chu, Tsung-Ju Chan, Chun-Wei Wu, Hung-Jen Chen
  • Publication number: 20240022256
    Abstract: An analog to digital converter includes voltage divider circuits, front-end circuits, at least one converter circuit, and a controller circuit. The voltage divider circuits are configured to divide an input signal to generate first signals, in which the first signals have different levels. The front-end circuits are configured to respectively sample the first signals to generate second signals. The at least one converter circuit is configured to generate at least one digital output according to the second signals and a reference voltage. The controller circuit is configured to determine a level of the input signal according to the at least one digital output and select one of the at least one digital output according to the level of the input signal.
    Type: Application
    Filed: April 11, 2023
    Publication date: January 18, 2024
    Inventors: CHUN-CHIEH CHAN, HENG-YI CHEN, YI-CHENG LIN
  • Publication number: 20240015000
    Abstract: The present disclosure discloses a signal relay apparatus having frequency locking mechanism that includes a receiving circuit, a frequency generation circuit, a frequency tracking circuit and a transmission circuit. The receiving circuit receives a receiving signal to retrieve data included therein according a corresponding receiving frequency signal. The frequency generation circuit receives a source clock signal and generates a target frequency signal according to a conversion parameter. The frequency tracking circuit calculates a frequency difference between the receiving frequency signal and the target frequency signal to adjust the conversion parameter accordingly. The transmission circuit generates a transmission signal that includes the data according to the target frequency signal.
    Type: Application
    Filed: June 6, 2023
    Publication date: January 11, 2024
    Inventors: CHUN-CHIEH CHAN, TAI-JUNG WU, CHIA-HAO CHANG
  • Publication number: 20230419920
    Abstract: A control device is configured to control a display panel according to a trigger signal transmitted from an input device to a host. The control device includes a connector unit and a signal capture unit. The connector unit is configured to receive the trigger signal, and transmit the same to the host. The signal capture unit is configured to capture the trigger signal, and control the display panel according to the trigger signal while the connector unit is transmitting the trigger signal to the host.
    Type: Application
    Filed: March 28, 2023
    Publication date: December 28, 2023
    Inventors: CIAN-ROU WU, CHENG YUEH CHEN, CHUN-CHIEH CHAN
  • Patent number: 11798759
    Abstract: A keyboard device includes a substrate, a keycap, and a link member. The keycap is disposed on the substrate and provided with a limiting member including a top wall, a bottom wall, and a slide groove. In the slide groove, the top wall has a first guide bevel and the bottom wall has a second guide bevel. The link member is disposed between the substrate and the keycap and includes a slide connection portion and a pivot connection portion. The slide connection portion is slidably disposed in the slide groove, and the pivot connection portion is pivotally connected to the substrate. When the keycap is pressed to move downwardly toward the substrate, the pivot connection portion of the link member is rotated with respect to the substrate, and the slide connection portion slides along the first guide bevel and the second guide bevel.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: October 24, 2023
    Assignee: CHICONY ELECTRONICS CO., LTD.
    Inventors: Chun-Chieh Chan, Chao-Chin Hsieh
  • Patent number: 11785233
    Abstract: The present disclosure discloses a video interface conversion device that includes a first and a second interface transmission circuit, a color conversion circuit and an image compression circuit. The first and the second interface transmission circuit are respectively electrically coupled to an image source and a display terminal. The second interface transmission circuit negotiates a maximum output bandwidth with the display terminal such that the first interface transmission circuit compares an input data bandwidth of a data signal received from the image source and the maximum output bandwidth. When the maximum output bandwidth is smaller than the input data bandwidth, an image compression and/or a color coding conversion is performed on the data signal, and the data signal having the processed input data bandwidth being smaller than or equal to the maximum output bandwidth is further transmitted by the second interface transmission circuit to the display terminal.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: October 10, 2023
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chun-Chieh Chan, Tai-Jung Wu, Ming-An Wu, Chien-Hsun Lu
  • Publication number: 20230264317
    Abstract: A chemical mechanical polishing (CMP) apparatus is provided, including a polishing pad and a polishing head. The polishing pad has a polishing surface. The polishing head is configured to hold a wafer in contact with the polishing surface during the polishing process. The polishing head includes a retaining ring, at least one fluid channel, and a vacuum pump. The retaining ring is arranged along the periphery of the polishing head and configured to retain the wafer. The at least one fluid channel is provided inside the polishing head, wherein the retaining ring includes a bottom surface facing the polishing surface and a plurality of holes in fluid communication with the bottom surface and the at least one fluid channel. The vacuum pump is fluidly coupled to the at least one fluid channel.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 24, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chen WEI, Jheng-Si SU, Shih-Ho LIN, Jen-Chieh LAI, Chun-Chieh CHAN
  • Publication number: 20230223215
    Abstract: A keyboard device includes a substrate, a keycap, and a link member. The keycap is disposed on the substrate and provided with a limiting member including a top wall, a bottom wall, and a slide groove. In the slide groove, the top wall has a first guide bevel and the bottom wall has a second guide bevel. The link member is disposed between the substrate and the keycap and includes a slide connection portion and a pivot connection portion. The slide connection portion is slidably disposed in the slide groove, and the pivot connection portion is pivotally connected to the substrate. When the keycap is pressed to move downwardly toward the substrate, the pivot connection portion of the link member is rotated with respect to the substrate, and the slide connection portion slides along the first guide bevel and the second guide bevel.
    Type: Application
    Filed: August 24, 2022
    Publication date: July 13, 2023
    Inventors: Chun-Chieh Chan, Chao-Chin Hsieh
  • Patent number: 11689762
    Abstract: A method for switching audio-visual interfaces and a circuit system are provided. The circuit system is disposed in a sink device. A protocol layer circuit of each of audio-visual interfaces in the sink device includes a status and control data channel control module, which is used to respond to the signals sent by the video sources continuously when the sink device is connected with audio-visual sources via the audio-visual interfaces. The multiple video sources can accordingly send FRL (fixed rate link) signals to the sink device in response to responses made by the sink device. The protocol layer circuit includes an FRL audio-visual packet detection module that starts to detect a rate of an FRL and resolve audio-visual packets for obtaining audio-visual data for the audio-visual interface that the sink device switches to.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: June 27, 2023
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Chun-Chieh Chan, Ming-An Wu, Hung-Shao Chen
  • Patent number: 11673223
    Abstract: A chemical mechanical polishing method is provided, including polishing a batch of wafers in sequence on a polishing surface of a polishing pad; conditioning the polishing surface with a pad conditioner, wherein the pad conditioner is operable to apply downward force according to a predetermined downward force stored in a controller to condition the polishing surface; measuring the downward force applied by the pad conditioner with a measurement tool when the pad conditioner is at a home position and after conditioning the polishing surface; comparing the downward force measured by the measurement tool and the predetermined downward force with the controller to determine whether a difference between the downward force measured by the measurement tool and the predetermined downward force exceeds a range of acceptable values; and calibrating the downward force applied by the pad conditioner with the controller when the difference exceeds the range of acceptable values.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: June 13, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu-Chen Wei, Jheng-Si Su, Shih-Ho Lin, Jen-Chieh Lai, Chun-Chieh Chan
  • Patent number: 11659136
    Abstract: A data conversion device includes a storage circuit and a frequency tuning circuit. The storage circuit is configured to store a pixel data in a high definition multimedia interface (HDMI) signal according to a first clock, and output an image data according to a second clock. The frequency tuning circuit is configured to adjust the second clock according to a control signal and the second clock in the HDMI signal, and transmit the adjusted second clock to the storage circuit.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: May 23, 2023
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Che-Wei Yeh, Chien-Hsun Lu, Zhan-Yao Gu, Chun-Chieh Chan
  • Patent number: 11658852
    Abstract: The present invention discloses a signal relay apparatus having frequency calibration mechanism that includes a clock generation circuit, a frequency generation circuit, a clock measuring circuit, a frequency adjusting circuit and a transmission circuit. The clock generation circuit generates a source clock signal. The frequency generation circuit receives the source clock signal and generates a target frequency signal according to a conversion parameter. The clock measuring circuit measures a first frequency offset of a source frequency relative to a first predetermined frequency according to an external reference clock signal. The frequency adjusting circuit adjusts the conversion parameter according to the first frequency offset when the first frequency offset is not within a first predetermined range such that a second frequency offset of a target frequency relative to a second predetermined frequency is within a second predetermined range.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: May 23, 2023
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chun-Chieh Chan, Tai-Jung Wu, Chia-Hao Chang
  • Publication number: 20230133879
    Abstract: A storage device sharing system and a storage device sharing method are provided. The storage device sharing system includes a storage device, a first chip and a second chip. The first chip and the second chip are configured to enter a toggle mode and an arbitration mode. In the toggle mode, the first chip that acts as the master controls the arbitration potential to a first control potential and a second control potential, and communicates with the storage device in response to the arbitration potential being the first control potential, and the second chip that acts as a slave communicates with the storage device in response to the arbitration potential being the second control potential.
    Type: Application
    Filed: July 29, 2022
    Publication date: May 4, 2023
    Inventors: CHUN-CHIEH CHAN, WEI-LUN HUANG, CHIA-FEN LIN
  • Publication number: 20230127298
    Abstract: A key structure includes a bottom plate, at least one keycap, and a thin-film circuit board. The bottom plate has at least one elastic protruding portion. The keycap is liftably connected to the bottom plate and has a press portion and at least one trigger portion. The press portion is located at a central region of the keycap and faces the elastic protruding portion, and the trigger portion is located at a peripheral region of the keycap. When the key is lowered from a first position to a second position relatively to the bottom plate, the press portion downwardly presses the elastic protruding portion, and the press portion triggers an electrical trigger point of the thin-film circuit board. The keycap is adapted to be restored from the second position to the first position through an elastic force of the elastic protruding portion.
    Type: Application
    Filed: January 12, 2022
    Publication date: April 27, 2023
    Applicant: Chicony Electronics Co., Ltd.
    Inventors: Chao-Chin Hsieh, Chun-Chieh Chan
  • Patent number: 11636990
    Abstract: A key structure includes a bottom plate, at least one keycap, and a thin-film circuit board. The bottom plate has at least one elastic protruding portion. The keycap is liftably connected to the bottom plate and has a press portion and at least one trigger portion. The press portion is located at a central region of the keycap and faces the elastic protruding portion, and the trigger portion is located at a peripheral region of the keycap. When the key is lowered from a first position to a second position relatively to the bottom plate, the press portion downwardly presses the elastic protruding portion, and the press portion triggers an electrical trigger point of the thin-film circuit board. The keycap is adapted to be restored from the second position to the first position through an elastic force of the elastic protruding portion.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: April 25, 2023
    Assignee: Chicony Electronics Co., Ltd.
    Inventors: Chao-Chin Hsieh, Chun-Chieh Chan
  • Publication number: 20230113757
    Abstract: A display control integrated circuit (IC) applicable to performing real-time video content text detection and speech automatic generation in a display device may include a pre-processing circuit, a character recognition circuit and a post-processing circuit. The pre-processing circuit may input a video signal to obtain a real-time video content carried by the video signal, and perform preliminary text detection on the real-time video content to generate a series of segmented character images to indicate a subtitle. The character recognition circuit may perform character recognition on the series of segmented character images to generate a series of characters, respectively. The post-processing circuit may perform vocabulary correction on the series of characters to selectively replace any erroneous character with a correct character to generate one or more vocabularies, for performing speech automatic generation.
    Type: Application
    Filed: December 1, 2021
    Publication date: April 13, 2023
    Applicant: Realtek Semiconductor Corp.
    Inventors: Kuan-Ting Chiang, Chun-Chieh Chan, Sheng-Ju Yang
  • Publication number: 20230098884
    Abstract: A method for switching audio-visual interfaces and a circuit system are provided. The circuit system is disposed in a sink device. A protocol layer circuit of each of audio-visual interfaces in the sink device includes a status and control data channel control module, which is used to respond to the signals sent by the video sources continuously when the sink device is connected with audio-visual sources via the audio-visual interfaces. The multiple video sources can accordingly send FRL (fixed rate link) signals to the sink device in response to responses made by the sink device. The protocol layer circuit includes an FRL audio-visual packet detection module that starts to detect a rate of an FRL and resolve audio-visual packets for obtaining audio-visual data for the audio-visual interface that the sink device switches to.
    Type: Application
    Filed: March 15, 2022
    Publication date: March 30, 2023
    Inventors: CHUN-CHIEH CHAN, MING-AN WU, HUNG-SHAO CHEN
  • Publication number: 20230082685
    Abstract: A multimedia system and a protocol converter are provided. The multimedia system includes a sink device, e.g., a television, various audiovisual devices connected to the sink device, and the protocol converter. The protocol converter is connected to the sink device, and processes the audio and video signals inputted from a specific audiovisual source and outputted to the sink device to be played. The audio signals can be processed and played by an audio playback device directly connected with the protocol converter. Furthermore, the protocol converter can process the audio signals being returned from the sink device of the multimedia system via an audio return channel or an enhanced audio return channel. Finally, the received audio signals are converted and outputted to one of various audio output interfaces supported by the protocol converter.
    Type: Application
    Filed: April 26, 2022
    Publication date: March 16, 2023
    Inventors: CHUN-CHIEH CHAN, HUNG-SHAO CHEN, CHIA-HAO CHANG, TZU-HSIN FAN
  • Publication number: 20230046082
    Abstract: The present invention discloses a signal relay apparatus having frequency calibration mechanism that includes a clock generation circuit, a frequency generation circuit, a clock measuring circuit, a frequency adjusting circuit and a transmission circuit. The clock generation circuit generates a source clock signal. The frequency generation circuit receives the source clock signal and generates a target frequency signal according to a conversion parameter. The clock measuring circuit measures a first frequency offset of a source frequency relative to a first predetermined frequency according to an external reference clock signal. The frequency adjusting circuit adjusts the conversion parameter according to the first frequency offset when the first frequency offset is not within a first predetermined range such that a second frequency offset of a target frequency relative to a second predetermined frequency is within a second predetermined range.
    Type: Application
    Filed: June 24, 2022
    Publication date: February 16, 2023
    Inventors: CHUN-CHIEH CHAN, TAI-JUNG WU, CHIA-HAO CHANG