Patents by Inventor Chun-Chu CHANG

Chun-Chu 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).

  • Publication number: 20250056380
    Abstract: A method for detecting wireless communication channel includes following steps of: detecting a wireless communication signal of a wireless communication channel by a wireless communication device to determine whether to generate an idle channel evaluation signal; counting a random back-off period by the wireless communication device according to the idle channel evaluation signal; recording a plurality of channel state parameters by the wireless communication device; generating a channel state result according to the plurality of channel state parameters by the wireless communication device; and determining an operation mode of the wireless communication device according to the channel state result.
    Type: Application
    Filed: February 2, 2024
    Publication date: February 13, 2025
    Inventor: Chun-Chu CHANG
  • Publication number: 20230413172
    Abstract: The present invention discloses a wireless communication apparatus having transmission strategy adjusting mechanism that includes a receiving circuit, a detection circuit, a statistics circuit, a strategy determining circuit and a transmission circuit. The receiving circuit receives communication behaviors of external apparatuses. The detection circuit detects inter frame spaces (IFS) corresponding to the communication behaviors and records related time lengths and a set of communication parameters. The statistics circuit performs statistics on the inter frame space according to a plurality of time intervals to generate Inter frame space statistics data. The strategy determining circuit analyzes at least one of the time lengths, communication parameters and Inter frame space statistics data according to at least one application requirement to generate a transmission parameter adjusting signal.
    Type: Application
    Filed: May 25, 2023
    Publication date: December 21, 2023
    Inventors: WEI-SHIN LI, CHUN-CHU CHANG
  • Patent number: 11467989
    Abstract: A serial transmission system includes a first storage circuit, a second storage circuit, a control circuit, and a serial processing circuit. The first storage circuit is configured to store data-to-be-transmitted of a plurality of users. The second storage circuit is coupled to the first storage circuit. The control circuit is configured to control the second storage circuit to receive the data-to-be-transmitted from the first storage circuit. The serial processing circuit is configured to receive the data-to-be-transmitted from the second storage circuit in series, and output a plurality of multi-user packets.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: October 11, 2022
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Chun-Chu Chang
  • Publication number: 20220138124
    Abstract: A serial transmission system includes a first storage circuit, a second storage circuit, a control circuit, and a serial processing circuit. The first storage circuit is configured to store data-to-be-transmitted of a plurality of users. The second storage circuit is coupled to the first storage circuit. The control circuit is configured to control the second storage circuit to receive the data-to-be-transmitted from the first storage circuit. The serial processing circuit is configured to receive the data-to-be-transmitted from the second storage circuit in series, and output a plurality of multi-user packets.
    Type: Application
    Filed: April 29, 2021
    Publication date: May 5, 2022
    Inventor: Chun-Chu CHANG
  • Patent number: 11288223
    Abstract: A bridge chip with a function of expanding external devices and an associated expansion method are provided, wherein the bridge chip may include at least one transmission interface, a bridge control unit and a connecting port. The transmission interface may be configured to make at least one external device outside the bridge chip couple to the bridge chip; the bridge control unit is coupled to the transmission interface, and may be configured to control priority of the external device for performing data transmission; and the connecting port is coupled to the bridge control unit, and may be configured to make the bridge chip couple to a host device, to allow the host device to perform data transmission with the external device. More particularly, a number of the external device is expandable.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: March 29, 2022
    Assignee: Realtek Semiconductor Corp.
    Inventor: Chun-Chu Chang
  • Publication number: 20210141755
    Abstract: A bridge chip with a function of expanding external devices and an associated expansion method are provided, wherein the bridge chip may include at least one transmission interface, a bridge control unit and a connecting port. The transmission interface may be configured to make at least one external device outside the bridge chip couple to the bridge chip; the bridge control unit is coupled to the transmission interface, and may be configured to control priority of the external device for performing data transmission; and the connecting port is coupled to the bridge control unit, and may be configured to make the bridge chip couple to a host device, to allow the host device to perform data transmission with the external device. More particularly, a number of the external device is expandable.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 13, 2021
    Inventor: Chun-Chu Chang
  • Patent number: 9052921
    Abstract: A universal serial bus (USB) network interface controller and an operation mode switching method thereof are provided. The USB network interface controller determines an access point network band of a wireless network access point with which the USB network interface controller intends to connect, and switches from a first USB operation mode to a second USB operation mode to transmit data with a host so that an operation frequency of the USB network interface controller falls outside the access point network band. Afterwards, the USB network interface controller adjusts an operation network band to be the same as the access point network band, and exchanges information with the wireless network access point.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: June 9, 2015
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chun-Chu Chang, Kuang-Yu Yen, Jia-Ching Shen, Yu-Chen Liu
  • Publication number: 20150058500
    Abstract: A communication apparatus includes a host, a signal receiving apparatus arranged to receive a wireless signal, and a connecting device coupled between the host and the signal receiving apparatus. The connecting device is arranged to transmit a transmission signal between the host and the signal receiving apparatus. The signal receiving apparatus refers to the state of the received wireless signal to control the connecting device to selectively enter a second operation mode from a first operation mode to reduce the interference upon the wireless signal.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Chun-Chu Chang, Chia-Yi Liu, Kuang-Yu Yen, Jia-Ching Shen
  • Publication number: 20140297899
    Abstract: A universal serial bus (USB) network interface controller and an operation mode switching method thereof are provided. The USB network interface controller determines an access point network band of a wireless network access point with which the USB network interface controller intends to connect, and switches from a first USB operation mode to a second USB operation mode to transmit data with a host so that an operation frequency of the USB network interface controller falls outside the access point network band. Afterwards, the USB network interface controller adjusts an operation network band to be the same as the access point network band, and exchanges information with the wireless network access point.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 2, 2014
    Applicant: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chun-Chu CHANG, Kuang-Yu YEN, Jia-Ching SHEN, Yu-Chen LIU