Patents by Inventor Li-Wei Huang

Li-Wei Huang 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: 20240070109
    Abstract: The present disclosure provides an USB device and a system type determining method thereof. The system type determining method includes: determining, by the USB device, whether an USB host transmit at least one of an HID interrupt signal and an UAC1 status interrupt signal; and determining, by the USB device, a system type of the USB host according to the result of determining whether the USB host transmit at least one of the HID interrupt signal and the UAC1 status interrupt signal.
    Type: Application
    Filed: August 22, 2023
    Publication date: February 29, 2024
    Inventors: PO-CHAO HUANG, LI-WEI HUANG
  • Patent number: 11587573
    Abstract: The disclosure provides a speech processing method and a device thereof. The method includes: acquiring a speech sampling signal frame in a mixed-excitation linear prediction (MELP) speech coding system and estimating signal quality of the speech sampling signal frame; determining, based on the signal quality, a specific linear prediction coding (LPC) order used by an LPC circuit; controlling the LPC circuit to convert the speech sampling signal frame into a line spectrum pair parameter based on the specific LPC order; replacing a speech signal spectrum of the speech sampling signal frame with the line spectrum pair parameter to generate a predicted speech signal; and performing a speech coding operation and a signal synthesizing operation of the MELP speech coding system based on the predicted speech signal.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: February 21, 2023
    Assignee: Acer Incorporated
    Inventors: Chao-Lun Chen, An-Cheng Lee, Li-Wei Huang
  • Publication number: 20220357782
    Abstract: An external audio device includes a USB (Universal Serial Bus) plug, an audio socket, a USB communication circuit, an audio socket detection circuit, a first power circuit, a second power circuit, and a control circuit. The USB communication circuit establishes a connection with a computer device coupled to the USB plug according to the communication protocol of USB. The audio socket detection circuit detects a plug-in state of the audio socket. The first power circuit generates a second power to the USB communication circuit according to a first power received from the USB plug. The second power circuit generates a third power to the audio socket detection circuit according to the first power. The control circuit enables or disables the first power circuit according to the plug-in state of the audio socket.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 10, 2022
    Applicant: Realtek Semiconductor Corp.
    Inventors: Ko-Wei Chen, Li-Wei Huang, Shu-Yeh Chiu, Sheng-Nan Chiu
  • Publication number: 20210082446
    Abstract: The disclosure provides a speech processing method and a device thereof. The method includes: acquiring a speech sampling signal frame in a mixed-excitation linear prediction (MELP) speech coding system and estimating signal quality of the speech sampling signal frame; determining, based on the signal quality, a specific linear prediction coding (LPC) order used by an LPC circuit; controlling the LPC circuit to convert the speech sampling signal frame into a line spectrum pair parameter based on the specific LPC order; replacing a speech signal spectrum of the speech sampling signal frame with the line spectrum pair parameter to generate a predicted speech signal; and performing a speech coding operation and a signal synthesizing operation of the MELP speech coding system based on the predicted speech signal.
    Type: Application
    Filed: November 28, 2019
    Publication date: March 18, 2021
    Applicant: Acer Incorporated
    Inventors: Chao-Lun Chen, An-Cheng Lee, Li-Wei Huang
  • Patent number: 8948146
    Abstract: A femtocell, a femtocell gateway and an access rejection method thereof are provided. A wireless network system comprises a wireless device, a plurality of the femtocells, the femtocell gateway and a core network server. The wireless device has a Subscriber Identification and the core network server stores a Closed Subscribers Group Identification of the femtocells. The femtocell gateway receives an access rejection message corresponding to the Subscriber Identification of the wireless device from the core network server, and transmits the access rejection message to the femtocells. Each femtocell records the Subscriber Identification in a rejection list thereof, and it is capable of adding/deleting Subscriber Identifications in its rejection list.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: February 3, 2015
    Assignee: Institute For Information Industry
    Inventors: Ching Lun Lin, Jian-Chian Chiou, Li-Wei Huang, Yao-Hsin Chen, Chun-Hao Yeh, Shao-Wei Huang
  • Publication number: 20120300757
    Abstract: A femtocell, a femtocell gateway and an access rejection method thereof are provided. A wireless network system comprises a wireless device, a plurality of the femtocells, the femtocell gateway and a core network server. The wireless device has a Subscriber Identification and the core network server stores a Closed Subscribers Group Identification of the femtocells. The femtocell gateway receives an access rejection message corresponding to the Subscriber Identification of the wireless device from the core network server, and transmits the access rejection message to the femtocells. Each femtocell records the Subscriber Identification in a rejection list thereof, and it is capable of adding/deleting Subscriber Identifications in its rejection list.
    Type: Application
    Filed: August 1, 2011
    Publication date: November 29, 2012
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Ching Lun LIN, Jian-Chian CHIOU, Li-Wei HUANG, Yao-Hsin CHEN, Chun-Hao YEH, Shao-Wei HUANG
  • Patent number: 7791385
    Abstract: A spread spectrum clock generating apparatus is disclosed. The spread spectrum clock generating apparatus includes a phase lock loop module and a spread spectrum module. The phase lock loop module is used for dynamically tuning frequency of an output clock. The spread spectrum module includes a counter, a plurality of delta-sigma counters and a data shifter. These delta-sigma counters accumulate input signals, and enable a first overflow signal while accumulation of a last stage delta-sigma counter is overflowed. The frequency of the output clock can be tuned dynamically according to the first overflow signal, and the spectrum of the output clock can be spread.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: September 7, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Hong-Yi Huang, Li-Wei Huang, Yuan-Hua Chu
  • Publication number: 20100007322
    Abstract: A resistor unit is adapted for use in a constant current source circuit or a temperature compensating circuit for providing temperature compensation to a constant voltage reference circuit. The resistor unit includes at least one first resistor, and at least one second resistor coupled to the first resistor. One of the first and second resistors is a positive temperature coefficient resistor. The other one of the first and second resistors is a negative temperature coefficient resistor. Because a temperature characteristic of the first resistor is opposite to that of the second resistor, an effective resistance of the resistor unit changes in a relatively narrower range with temperature.
    Type: Application
    Filed: January 12, 2009
    Publication date: January 14, 2010
    Applicant: Mobien Corporation
    Inventor: Li-Wei Huang
  • Publication number: 20090140782
    Abstract: A spread spectrum clock generating apparatus is disclosed. The spread spectrum clock generating apparatus includes a phase lock loop module and a spread spectrum module. The phase lock loop module is used for dynamically tuning frequency of an output clock. The spread spectrum module includes a counter, a plurality of delta-sigma counters and a data shifter. These delta-sigma counters accumulate input signals, and enable a first overflow signal while accumulation of a last stage delta-sigma counter is overflowed. The frequency of the output clock can be tuned dynamically according to the first overflow signal, and the spectrum of the output clock can be spread.
    Type: Application
    Filed: March 11, 2008
    Publication date: June 4, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hong-Yi Huang, Li-Wei Huang, Yuan-Hua Chu