Patents by Inventor Chih Hao Hu

Chih Hao Hu 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: 20240121954
    Abstract: A memory device includes a first stack structure including first gate layers and first insulating layers alternately stacked with each other. A first channel pillar extends through the first stack structure. A second stack structure is located on the first stack structure and includes second gate layers and second insulating layers alternately stacked with each other. A second channel pillar extends through the second stack structure and is separated from the first channel pillar. A first conductive pillar and a second conductive pillar are located in and electrically connecting with the first channel pillar and the second channel pillar. A charge storage structure is located between the first gate layers and the first channel pillar, and between the second gate layers and the second channel pillar. The memory device may be applied to a 3D AND flash memory.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 11, 2024
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Chih-Wei Hu, Teng-Hao Yeh
  • Patent number: 8878808
    Abstract: A display includes a display module and a sensing module including a proximity sensing electrode, a set of sensing electrodes, a touch circuit, a proximity circuit and a processor. The sensing electrodes are configured to sense a touch input during a first period and sense a proximity input during a second period. The touch circuit is coupled to the sensing electrodes for controlling the sensing electrodes to sense the touch input in the first period, and converting a two-dimensional analog touch signal transmitted from the set of the sensing electrodes to a two-dimensional digital touch signal. The proximity circuit is coupled to the sensing electrodes and the proximity sensing electrode for controlling the sensing electrodes and the proximity sensing electrode to sense the proximity input, and converting a three-dimensional analog proximity signal transmitted from the set of sensing electrodes and proximity unit to a three-dimensional digital proximity signal.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: November 4, 2014
    Assignee: AU Optronics Corp.
    Inventors: Chi-Cheng Chen, Chao-Chen Wang, Kyaw Kyaw Tun, Chih-Hao Hu
  • Publication number: 20130271396
    Abstract: A display includes a display module and a sensing module including a proximity sensing electrode, a set of sensing electrodes, a touch circuit, a proximity circuit and a processor. The sensing electrodes are configured to sense a touch input during a first period and sense a proximity input during a second period. The touch circuit is coupled to the sensing electrodes for controlling the sensing electrodes to sense the touch input in the first period, and converting a two-dimensional analog touch signal transmitted from the set of the sensing electrodes to a two-dimensional digital touch signal. The proximity circuit is coupled to the sensing electrodes and the proximity sensing electrode for controlling the sensing electrodes and the proximity sensing electrode to sense the proximity input, and converting a three-dimensional analog proximity signal transmitted from the set of sensing electrodes and proximity unit to a three-dimensional digital proximity signal.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 17, 2013
    Applicant: AU OPTRONICS CORP.
    Inventors: Chi-Cheng Chen, Chao-Chen Wang, Kyaw Kyaw Tun, Chih-Hao Hu
  • Patent number: 8533510
    Abstract: A power management method for a multi-microprocessor system is provided. The multi-microprocessor system comprises a first microprocessor and a second microprocessor. The power management method comprises steps of receiving a power down instruction; transmitting a power down notice signal to the first microprocessor from the second microprocessor, transmitting a reply signal from the first microprocessor to the second microprocessor in response to the power down notice signal, and turning off power of the first microprocessor by the second microprocessor.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: September 10, 2013
    Assignee: Mstar Semiconductor, Inc.
    Inventors: Chien-Liang Chen, Chih Hao Hu
  • Publication number: 20120023342
    Abstract: A power management method for a multi-microprocessor system is provided. The multi-microprocessor system comprises a first microprocessor and a second microprocessor. The power management method comprises steps of receiving a power down instruction; transmitting a power down notice signal to the first microprocessor from the second microprocessor, transmitting a reply signal from the first microprocessor to the second microprocessor in response to the power down notice signal, and turning off power of the first microprocessor by the second microprocessor.
    Type: Application
    Filed: September 28, 2011
    Publication date: January 26, 2012
    Applicant: MStar Semiconductor, Inc.
    Inventors: CHIEN-LIANG CHEN, Chih Hao Hu
  • Patent number: 8090966
    Abstract: A power management method for a multi-microprocessor system is provided. The multi-microprocessor system comprises a first microprocessor and a second microprocessor. The power management method comprises steps of receiving a power down instruction; transmitting a power down notice signal to the first microprocessor from the second microprocessor, transmitting a reply signal from the first microprocessor to the second microprocessor in response to the power down notice signal, and turning off power of the first microprocessor by the second microprocessor.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: January 3, 2012
    Assignee: MStar Semiconductor, Inc.
    Inventors: Chien-Liang Chen, Chih Hao Hu
  • Publication number: 20090217069
    Abstract: A power management method for a multi-microprocessor system is provided. The multi-microprocessor system comprises a first microprocessor and a second microprocessor. The power management method comprises steps of receiving a power down instruction; transmitting a power down notice signal to the first microprocessor from the second microprocessor, transmitting a reply signal from the first microprocessor to the second microprocessor in response to the power down notice signal, and turning off power of the first microprocessor by the second microprocessor.
    Type: Application
    Filed: January 8, 2009
    Publication date: August 27, 2009
    Applicant: MSTAR SEMICONDUCTOR, INC.
    Inventors: CHIEN-LIANG CHEN, CHIH HAO HU
  • Publication number: 20050135624
    Abstract: A system and method for pre-authentication across wireless local area networks (WLANs). A first access point (AP) receives next handoff authentication information from a mobile device during authentication of the mobile device with the first access point. An authentication server receives the next handoff authentication information, acquires an authentication seed value and calculates a first authentication value using the authentication seed value during a data communication session between the mobile device and the first AP. A second AP receives the first authentication value and the authentication seed value during the data communication session. The second AP receives a connection request message and transmits the authentication seed value to the mobile device when the mobile device hands off the data communication session from the first AP to the second AP. The second AP authenticates the mobile device if a second authentication value from the mobile device corresponds to the first authentication value.
    Type: Application
    Filed: June 4, 2004
    Publication date: June 23, 2005
    Inventors: Ya-Hsang Tsai, Yu-Ren Huang, Chien-Chao Tseng, Chih-Hao Hu