Patents by Inventor Yu-Hsuan Liu

Yu-Hsuan Liu 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: 11709650
    Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device arranged to operably broadcast BLE audio packets; a first Bluetooth member device arranged to operably parse the BLE audio packets to acquire a predetermined audio data and to operably control a first audio playback circuit to playback the predetermined audio data; and a second Bluetooth member device arranged to operably parse the BLE audio packets to acquire the predetermined audio data and to operably control a second audio playback circuit to playback the predetermined audio data. After receiving the BLE audio packets from the audio broadcasting device, the first Bluetooth member further adjusts an audio volume of the first audio playback circuit according to a volume adjusting instruction transmitted from another device other than the audio broadcasting device, and the second Bluetooth member further adjusts an audio volume of the second audio playback circuit according to the volume adjusting instruction.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: July 25, 2023
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yu Hsuan Liu, Yung Chieh Lin, Qing Gu, Bi Wei, Yi-Cheng Chen
  • Patent number: 11686614
    Abstract: A photodetecting device is provided. The photodetecting device includes a first photodetecting component including a substrate having a first absorption region configured to absorb photons having a first peak wavelength and to generate first photo-carriers, and a second photodetecting component including a second absorption region configured to absorb photons having a second peak wavelength different from the first peak wavelength and to generate second photo-carriers. The first photodetecting component further includes two first readout circuits and two first control circuits for the first photo-carriers and electrically coupled to the first absorption region.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: June 27, 2023
    Assignee: ARTILUX, INC.
    Inventors: Yen-Cheng Lu, Yun-Chung Na, Shu-Lu Chen, Chien-Yu Chen, Szu-Lin Cheng, Chung-Chih Lin, Yu-Hsuan Liu
  • Patent number: 11683025
    Abstract: A timing generator includes a first current source, a first switch, a second current source, a second switch, a third switch, a capacitor, a signal synthesizer, and a timing difference extractor. The first current source is for generating a first current according to the input voltage. The second current source is for generating a second current according to the input voltage. The first switch includes a control terminal for receiving a charging signal. The second switch includes a control terminal for receiving a timing difference signal. The third switch includes a control terminal for receiving a reset signal. The capacitor is coupled between a charging terminal and a ground terminal. The signal synthesizer is for generating a timing signal according to a charging voltage and a reference voltage. The timing difference extractor is for generating a timing difference signal according to the timing signal and a deformed timing signal.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: June 20, 2023
    Assignee: RICHTEK TECHNOLOGY CORP.
    Inventors: Yu-Hsuan Liu, Yung-Chun Chuang
  • Patent number: 11647332
    Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode wherein uplink audio signal transmission is allowed, and the connections are carried out by isochronous streaming channels respectively. The first member device transmits captured voice data to the Bluetooth host device, while the second member device does not transmit. When an event is triggered, the first member device can notify the second member device through a third-part device, so that the first member device and the second member device can carry out subsequent voice input handover procedures.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: May 9, 2023
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Qing Gu, Bi Wei, Yu Hsuan Liu, Yi-Cheng Chen, Cheng Cai, Hung Chuan Chang
  • Publication number: 20230137317
    Abstract: A Bluetooth audio system includes: an audio playback device arranged to operably generate and transmit Bluetooth audio transmission parameters; a first audio generating device arranged to operably capture sound to generate first audio packets, to operably receive the Bluetooth audio transmission parameters without conducting Bluetooth pairing with the audio playback device, and to operably broadcast the first audio packets through BIS logical transport; and a second audio generating device arranged to operably capture sound to generate second audio packets, to operably receive the Bluetooth audio transmission parameters without conducting Bluetooth pairing with the audio playback device, and to operably broadcast the second audio packets through BIS logical transport.
    Type: Application
    Filed: October 24, 2022
    Publication date: May 4, 2023
    Applicant: Realtek Semiconductor Corp.
    Inventor: Yu Hsuan LIU
  • Publication number: 20230120504
    Abstract: A wafer includes a plurality of testing dies, a plurality of non-testing dies, and a dicing region. Each testing die includes: a first active area including one or more first active devices, and one or more first device pads electrically coupled to the one or more first active devices. Each non-testing die includes: a second active area including one or more second active devices, and one or more second device pads electrically coupled to the one or more second active devices. The dicing region includes one or more testing pads electrically coupled to the one or more first device pads. The one or more testing pads are arranged to receive one or more external probes for determining one or more characteristics of the one or more first active devices of the plurality of testing dies. The plurality of non-testing dies are electrically isolated from the dicing region.
    Type: Application
    Filed: September 12, 2022
    Publication date: April 20, 2023
    Inventors: Chien-Yu Chen, Yi-Chuan Teng, Yu-Hsuan Liu, Yun-Chung Na
  • Publication number: 20230102871
    Abstract: A Bluetooth voice communication system includes: a Bluetooth host device arranged to operably conduct voice communication with a remote device; a first Bluetooth member device arranged to operably generate a left-channel voice data according to sounds captured by a first sound receiving circuit, and arranged to operably utilize a first Bluetooth communication circuit to transmit the left-channel voice data to the Bluetooth host device; and a second Bluetooth member device arranged to operably generate a right-channel voice data according to sounds captured by a second sound receiving circuit, and arranged to operably utilize a second Bluetooth communication circuit to transmit the right-channel voice data to the Bluetooth host device. The Bluetooth host device generates a stereo voice data based on the left-channel voice data and the right-channel voice data, and utilizes a signal transceiver circuit to transmit the stereo voice data to the remote device.
    Type: Application
    Filed: September 7, 2022
    Publication date: March 30, 2023
    Applicant: Realtek Semiconductor Corp.
    Inventors: Yu Hsuan LIU, Qing GU, Bi WEI, Hung Chuan CHANG, Yi-Cheng CHEN
  • Patent number: 11503611
    Abstract: A method for allocating wireless resources for a number of user equipment in a wireless communication system is applied in an apparatus. The apparatus collects the traffic demands of all the user equipment and then selects a beam based on the traffic demands of all the user equipment in every time slot to make better utilization of resource blocks.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: November 15, 2022
    Assignee: HON LIN TECHNOLOGY CO., LTD.
    Inventors: Ching-Ju Lin, Yu-Hsuan Liu, Chi-Mao Lee, Ping-Jung Hsieh, Tun-Yu Yu, Ming-Yu Lee
  • Publication number: 20220359770
    Abstract: An optical sensing apparatus is provided. The optical sensing apparatus including: a substrate including a first material; an absorption region including a second material different from the first material, the absorption region configured to receive an optical signal and generate photo-carriers in response to receiving the optical signal; an amplification region formed in the substrate configured to collect at least a portion of the photo-carriers from the absorption region and to amplify the portion of the photo-carriers carriers; a buried-dopant region formed in the substrate and separated from the absorption region, wherein the buried-dopant region is configured to collect at least a portion of the amplified portion of the photo-carriers from the amplification region; and a buffer layer formed between the buried-dopant region and the absorption region, wherein the buffer layer is intrinsic and has a thickness not less than 150 nm.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 10, 2022
    Inventors: Yen-Cheng Lu, Yu-Hsuan Liu, Jung-Chin Chiang, Yun-Chung Na
  • Publication number: 20220322209
    Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device arranged to operably broadcast BLE (Bluetooth Low Energy) audio packets; a first Bluetooth member device arranged to operably parse the BLE audio packets to acquire a predetermined audio data and to operably control a first audio playback circuit to playback the predetermined audio data; and a second Bluetooth member device arranged to operably parse the BLE audio packets to acquire the predetermined audio data and to operably control a second audio playback circuit to playback the predetermined audio data. When the first or second Bluetooth member device receives an alert signal, or when a specific ambient sound occurs in the surrounding environment of the first or second Bluetooth member device, the audio broadcasting device utilizes a target control command to instruct the first and second Bluetooth member devices to synchronously reduce their volume to be lower than a predetermined threshold.
    Type: Application
    Filed: June 21, 2022
    Publication date: October 6, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Yi-Cheng CHEN, Bi WEI, Yu Hsuan LIU, Chia Chun HUNG
  • Publication number: 20220313612
    Abstract: A method of preparing polylactic acid (PLA) microsphere and polylactic-co-glycolic acid (PLGA) microsphere is provided, including the following steps. A first solution is provided, including polylactic acid or polylactic-co-glycolic acid and an organic solvent. A second solution is provided, including polyvinyl alcohol, sodium carboxymethyl cellulose and an aqueous solution. The first solution is added to the second solution and, at the same time, the second solution is agitated until polylactic acid is solidified to form a plurality of polylactic acid microspheres, or until polylactic-co-glycolic acid is solidified to form a plurality of polylactic-co-glycolic acid microspheres. The polylactic acid microspheres or polylactic-co-glycolic acid microspheres are collected.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Ming-Thau SHEU, Yu-Ying HSU, Yu-De SU, Yu-Hsuan LIU, Pu-Sheng WEI
  • Patent number: 11452155
    Abstract: A transmitting-end Bluetooth device includes: a transmitting-end Bluetooth transceiver circuit; a packet generating circuit, coupled with the transmitting-end Bluetooth transceiver circuit; and a transmitting-end control circuit, coupled with the transmitting-end Bluetooth transceiver circuit and the packet generating circuit, arranged to operably instruct the packet generating circuit to insert an auto-pairing request and a source Bluetooth device address into one or more target packets when the transmitting-end Bluetooth device initiates a Bluetooth auto-pairing procedure, and arranged to operably control the transmitting-end Bluetooth transceiver circuit to transmit the one or more target packets when the transmitting-end Bluetooth device operates under a predetermined transmitting-end operating mode, so that a receiving-end Bluetooth device operating under a predetermined receiving-end operating mode is enabled to actively conduct a Bluetooth auto-pairing procedure with the transmitting-end Bluetooth devi
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: September 20, 2022
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Yu-Hsuan Liu
  • Publication number: 20220269475
    Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode wherein uplink audio signal transmission is allowed, and the connections are carried out by isochronous streaming channels respectively. The first member device transmits captured voice data to the Bluetooth host device, while the second member device does not. When an event is triggered, the first member device can notify the second member device through direct wireless connection, so that the first member device and the second member device can carry out subsequent voice input handover procedures.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 25, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Qing GU, Bi WEI, Yu Hsuan LIU, Yi-Cheng CHEN, Cheng CAI, Hung Chuan CHANG
  • Publication number: 20220272779
    Abstract: A Bluetooth communication system includes: a Bluetooth host device; and a Bluetooth device set which including a first member device and a second member device. The first member device is arranged to operably transmit a corresponding first device information to the Bluetooth host device. The second member device is arranged to operably transmit a corresponding second device information to the Bluetooth host device. The Bluetooth host device is arranged to operably control a display device to simultaneously display a first device item for representing the first member device and a second device item for representing the second member device in a graphical user interface. The Bluetooth host device is further arranged to operably establish a Bluetooth connection with the first member device and conduct pairing procedure with the first member device after receiving a selection command corresponding to the first member device.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 25, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Qing GU, Bi WEI, Yu Hsuan LIU, Yung Chieh LIN, Cheng CAI, Sixian WANG
  • Publication number: 20220272512
    Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode wherein uplink audio signal transmission is allowed, and the connections are carried out by isochronous streaming channels respectively. The first member device transmits captured voice data to the Bluetooth host device, while the second member device does not transmit. When an event is triggered, the first member device can notify the second member device through a third-part device, so that the first member device and the second member device can carry out subsequent voice input handover procedures.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 25, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Qing GU, Bi WEI, Yu Hsuan LIU, Yi-Cheng CHEN, Cheng CAI, Hung Chuan CHANG
  • Publication number: 20220272499
    Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode wherein uplink audio signal transmission is allowed, and the connections are carried out by isochronous streaming channels respectively. The first member device transmits captured voice data to the Bluetooth host device, while the second member device does not. When an event is triggered, the first member device can notify the second member device through the Bluetooth host device, so that the first member device and the second member device can carry out subsequent voice input handover procedures.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 25, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Qing GU, Bi WEI, Yu Hsuan LIU, Yi-Cheng CHEN, Cheng CAI, Hung Chuan CHANG
  • Publication number: 20220256627
    Abstract: A Bluetooth communication system includes: a Bluetooth host device; and a Bluetooth device set which including a first member device and a second member device. The first member device is arranged to operably transmit an auto-pair request, a first device information corresponding to the first member device, and a second device information corresponding to the second member device to the Bluetooth host device. The Bluetooth host device is arranged to operably receive the auto-pair request, the first device information, and the second device information transmitted from the first member device. The Bluetooth host device is further arranged to operably establish a Bluetooth connection with the first member device and conduct pairing procedure with the first member device according to the auto-pair request.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 11, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Qing GU, Bi WEI, Yu Hsuan LIU, Yung Chieh LIN, Cheng CAI, Sixian WANG
  • Publication number: 20220256286
    Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode and a second mode respectively, and the connections are carried out by isochronous streaming channels. The first member device transmits captured voice data to the Bluetooth main control device, while the second member device does not. When an event is triggered, the first member device can notify the second member device through the Bluetooth host device, so that the first member device and the second member device can carry out subsequent voice input handover procedures.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 11, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Qing GU, Bi WEI, Yu Hsuan LIU, Yi-Cheng CHEN, Cheng CAI, Hung Chuan CHANG
  • Publication number: 20220256633
    Abstract: A Bluetooth communication system includes: a Bluetooth host device; and a Bluetooth device set which including a first member device and a second member device. The first member device is arranged to operably transmit a first device information corresponding to the first member device and a second device information corresponding to the second member device to the Bluetooth host device. The Bluetooth host device is arranged to operably receive the first device information and the second device information transmitted from the first member device. The Bluetooth host device is further arranged to operably establish a Bluetooth connection with the first member device and conduct pairing procedure with the first member device after receiving a selection command.
    Type: Application
    Filed: February 9, 2022
    Publication date: August 11, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Qing GU, Bi WEI, Yu Hsuan LIU, Yung Chieh LIN, Cheng CAI, Sixian WANG
  • Publication number: 20220225088
    Abstract: A Bluetooth communication system includes: a Bluetooth host device; and a Bluetooth device set which including a first member device and a second member device. The first member device is arranged to operably generate and transmit target Bluetooth packets containing an auto-pair request to the Bluetooth host device. The second member device is arranged to operably generate a resolvable set identifier corresponding to the second member device according to a device set identification information. The Bluetooth host device is arranged to operably identify the first member device as a first privileged device according to the auto-pair request in the target Bluetooth packets, and to operably transmit a first privileged pairing notice to the first member device and to operably generate a first cypher key. The first member device further generates a second cypher key corresponding to the first cypher key after receiving the first privileged pairing notice.
    Type: Application
    Filed: January 10, 2022
    Publication date: July 14, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Yu Hsuan LIU, Yung Chieh LIN, Po Sheng CHIU