Patents by Inventor Hung-Chuan CHANG

Hung-Chuan 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: 11770784
    Abstract: A multi-member Bluetooth device for communicating data with a source Bluetooth device acting as a master in a first piconet. The multi-member Bluetooth device includes a main Bluetooth circuit acting as a slave in the first piconet and as a master in a second piconet, and an auxiliary Bluetooth circuit acting as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock according to a first main clock generated by the source Bluetooth device, with which both the first slave clock and the second main clock are synchronized. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock according to the second main clock, with which both the second slave clock and the third slave clock are synchronized. The auxiliary Bluetooth circuit sniffs Bluetooth packets transmitted through the first piconet from the source Bluetooth device.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: September 26, 2023
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yi-Cheng Chen, Kuan-Chung Huang, Hung-Chuan Chang, Chin-Wen Wang
  • Patent number: 11751153
    Abstract: A multi-member Bluetooth device for communicating data with a source Bluetooth device, wherein the source Bluetooth device acts as a master in a first piconet. The multi-member Bluetooth device includes a main Bluetooth circuit and an auxiliary Bluetooth circuit. The main Bluetooth circuit acts as a slave in the first piconet, and acts as a master in a second piconet. The auxiliary Bluetooth circuit acts as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock synchronized with a first main clock generated by the source Bluetooth device, and samples a first audio data to be playback. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock synchronized with the second main clock, and samples a second audio data to be playback.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: September 5, 2023
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Hung-Chuan Chang, Yi-Cheng Chen, Kuan-Chung Huang, Chin-Wen Wang
  • 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: 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
  • Publication number: 20220394641
    Abstract: A multi-member Bluetooth device for communicating data with a source Bluetooth device acting as a master in a first piconet. The multi-member Bluetooth device includes a main Bluetooth circuit acting as a slave in the first piconet and as a master in a second piconet, and an auxiliary Bluetooth circuit acting as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock according to a first main clock generated by the source Bluetooth device, with which both the first slave clock and the second main clock are synchronized. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock according to the second main clock, with which both the second slave clock and the third slave clock are synchronized. The auxiliary Bluetooth circuit sniffs Bluetooth packets transmitted through the first piconet from the source Bluetooth device.
    Type: Application
    Filed: August 17, 2022
    Publication date: December 8, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Yi-Cheng CHEN, Kuan-Chung HUANG, Hung-Chuan CHANG, Chin-Wen WANG
  • Patent number: 11457421
    Abstract: An auxiliary Bluetooth circuit of a multi-member Bluetooth device for communicating data with a source Bluetooth device acting as a master in a first piconet. A main Bluetooth circuit of the multi-member Bluetooth device acts as a slave in the first piconet, acts as a master in a second piconet, and generates a first slave clock and a second main clock according to a first main clock generated by the source Bluetooth device, with which both the first slave clock and the second main clock are synchronized. The auxiliary Bluetooth circuit acts as a slave in the second piconet and generates a second slave clock and a third slave clock according to the second main clock, with which both the second slave clock and the third slave clock are synchronized. The auxiliary Bluetooth circuit sniffs Bluetooth packets transmitted through the first piconet from the source Bluetooth device.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: September 27, 2022
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yi-Cheng Chen, Kuan-Chung Huang, Hung-Chuan Chang, Chin-Wen Wang
  • Publication number: 20220295429
    Abstract: A multi-member Bluetooth device for communicating data with a source Bluetooth device, wherein the source Bluetooth device acts as a master in a first piconet. The multi-member Bluetooth device includes a main Bluetooth circuit and an auxiliary Bluetooth circuit. The main Bluetooth circuit acts as a slave in the first piconet, and acts as a master in a second piconet. The auxiliary Bluetooth circuit acts as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock synchronized with a first main clock generated by the source Bluetooth device, and samples a first audio data to be playback. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock synchronized with the second main clock, and samples a second audio data to be playback.
    Type: Application
    Filed: June 3, 2022
    Publication date: September 15, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Hung-Chuan CHANG, Yi-Cheng CHEN, Kuan-Chung HUANG, Chin-Wen WANG
  • 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: 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: 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: 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
  • Patent number: 11405880
    Abstract: A main Bluetooth circuit and an auxiliary Bluetooth circuit of a multi-member Bluetooth device are disclosed. The multi-member Bluetooth device is utilized for communicating data with a source Bluetooth device, and the source Bluetooth device acts as a master in a first piconet. The main Bluetooth circuit acts as a slave in the first piconet, and acts as a master in a second piconet. The auxiliary Bluetooth circuit acts as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock synchronized with a first main clock generated by the source Bluetooth device, and samples a first audio data to be playback. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock synchronized with the second main clock, and samples a second audio data to be playback.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: August 2, 2022
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Hung-Chuan Chang, Yi-Cheng Chen, Kuan-Chung Huang, Chin-Wen Wang
  • Publication number: 20220226463
    Abstract: The present invention relates to a recombinant nonstructural protein 1 (NS 1), a recombinant influenza virus and an immunological composition including the same, as well as a method of treating or preventing a disease or condition caused by or associated with an influenza virus in a subject in need thereof. At least one amino acid residue is mutated or deleted in 4 contiguous amino acid residues of TRAF3-interacting motifs (TIMs) within an effector domain of the recombinant NS 1. A recombinant influenza virus including the recombinant NS1 is comparable to the wild-type influenza virus in virus replication ability, and the recombinant influenza virus can elevate interferon activation of a subject for achieving better immune response and better immunological protection, leading in a method of treating or preventing a disease or condition caused by or associated with an influenza virus in a subject in need thereof.
    Type: Application
    Filed: June 4, 2020
    Publication date: July 21, 2022
    Inventors: Pin LING, Kuan-Ru CHEN, Chun-Yang LIN, Meng-Cen SHIH, Hung-Chuan CHANG, Kuan-Jung LIN, Sheng-Kai MA
  • Publication number: 20210136711
    Abstract: A multi-member Bluetooth device for communicating data with a source Bluetooth device acting as a master in a first piconet. The multi-member Bluetooth device includes a main Bluetooth circuit acting as a slave in the first piconet and as a master in a second piconet, and an auxiliary Bluetooth circuit acting as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock according to a first main clock generated by the source Bluetooth device, with which both the first slave clock and the second main clock are synchronized. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock according to the second main clock, with which both the second slave clock and the third slave clock are synchronized. The auxiliary Bluetooth circuit sniffs Bluetooth packets transmitted through the first piconet from the source Bluetooth device.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 6, 2021
    Applicant: Realtek Semiconductor Corp.
    Inventors: Yi-Cheng CHEN, Kuan-Chung HUANG, Hung-Chuan CHANG, Chin-Wen WANG
  • Publication number: 20210136704
    Abstract: An auxiliary Bluetooth circuit of a multi-member Bluetooth device for communicating data with a source Bluetooth device acting as a master in a first piconet. A main Bluetooth circuit of the multi-member Bluetooth device acts as a slave in the first piconet, acts as a master in a second piconet, and generates a first slave clock and a second main clock according to a first main clock generated by the source Bluetooth device, with which both the first slave clock and the second main clock are synchronized. The auxiliary Bluetooth circuit acts as a slave in the second piconet and generates a second slave clock and a third slave clock according to the second main clock, with which both the second slave clock and the third slave clock are synchronized. The auxiliary Bluetooth circuit sniffs Bluetooth packets transmitted through the first piconet from the source Bluetooth device.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 6, 2021
    Applicant: Realtek Semiconductor Corp.
    Inventors: Yi-Cheng CHEN, Kuan-Chung HUANG, Hung-Chuan CHANG, Chin-Wen WANG
  • Publication number: 20210136551
    Abstract: A multi-member Bluetooth device for communicating data with a source Bluetooth device, wherein the source Bluetooth device acts as a master in a first piconet. The multi-member Bluetooth device includes a main Bluetooth circuit and an auxiliary Bluetooth circuit. The main Bluetooth circuit acts as a slave in the first piconet, and acts as a master in a second piconet. The auxiliary Bluetooth circuit acts as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock synchronized with a first main clock generated by the source Bluetooth device, and samples a first audio data to be playback. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock synchronized with the second main clock, and samples a second audio data to be playback.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 6, 2021
    Applicant: Realtek Semiconductor Corp.
    Inventors: Hung-Chuan CHANG, Yi-Cheng CHEN, Kuan-Chung HUANG, Chin-Wen WANG
  • Publication number: 20210136705
    Abstract: A main Bluetooth circuit and an auxiliary Bluetooth circuit of a multi-member Bluetooth device are disclosed. The multi-member Bluetooth device is utilized for communicating data with a source Bluetooth device, and the source Bluetooth device acts as a master in a first piconet. The main Bluetooth circuit acts as a slave in the first piconet, and acts as a master in a second piconet. The auxiliary Bluetooth circuit acts as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock synchronized with a first main clock generated by the source Bluetooth device, and samples a first audio data to be playback. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock synchronized with the second main clock, and samples a second audio data to be playback.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 6, 2021
    Applicant: Realtek Semiconductor Corp.
    Inventors: Hung-Chuan CHANG, Yi-Cheng CHEN, Kuan-Chung HUANG, Chin-Wen WANG