Patents by Inventor Shih-Chang Hu

Shih-Chang 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: 20240264405
    Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.
    Type: Application
    Filed: April 16, 2024
    Publication date: August 8, 2024
    Inventors: Chao-Chang HU, Liang-Ting HO, Chen-Er HSU, Yi-Liang CHAN, Fu-Lai TSENG, Fu-Yuan WU, Chen-Chi KUO, Ying-Jen WANG, Wei-Han HSIA, Yi-Hsin TSENG, Wen-Chang LIN, Chun-Chia LIAO, Shou-Jen LIU, Chao-Chun CHANG, Yi-Chieh LIN, Shang-Yu HSU, Yu-Huai LIAO, Shih-Wei HUNG, Sin-Hong LIN, Kun-Shih LIN, Yu-Cheng LIN, Wen-Yen HUANG, Wei-Jhe SHEN, Chih-Shiang WU, Sin-Jhong SONG, Che-Hsiang CHIU, Sheng-Chang LIN
  • Patent number: 11669198
    Abstract: A touchpad assembly, including an actuator device that provides motion in a first direction; a first structural element coupled to the actuator device; a second structural element coupled to the first structural element; wherein the first structural element, in response to the motion in the first direction provided by the actuator device, exerts a first rotational force in a first rotational direction, wherein the second structural element, in response to the first rotational force by the first structural element, exerts a second rotational force in a second rotational direction opposite to the first rotational direction, wherein the first rotational force and the second rotational force provide a rotational vibration of the touchpad assembly.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: June 6, 2023
    Assignee: Dell Products L.P.
    Inventors: Chun-Kai Tzeng, Chih-Ping Chang, Shih-Chang Hu, Chin-Chung Wu
  • Patent number: 11592930
    Abstract: A touchpad assembly, including an actuator device that provides motion in a first direction; a first structural element coupled to the actuator device; a second structural element coupled to the first structural element; wherein the first structural element, in response to the motion in the first direction provided by the actuator device, exerts a first rotational force in a first rotational direction, wherein the second structural element, in response to the first rotational force by the first structural element, exerts a second rotational force in a second rotational direction opposite to the first rotational direction, wherein the first rotational force and the second rotational force provide a rotational vibration of the touchpad assembly.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: February 28, 2023
    Assignee: Dell Products L.P.
    Inventors: Chun-Kai Tzeng, Chih-Ping Chang, Shih-Chang Hu, Chin-Chung Wu
  • Patent number: 11466972
    Abstract: Systems and methods may be implemented separately from (and external to) a battery system to detect swollen battery system components within a chassis enclosure of the information handling system, without any physical contact with the battery cells or battery system, and without requiring premature opening of the information handling system chassis enclosure to inspect for battery system swelling. A system user may be automatically warned of detected battery system swelling and/or battery system charging may be automatically terminated upon detected battery system swelling so that information handling system failure and/or system service costs that would otherwise be expended to repair damage caused by swollen battery system components may be prevented.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: October 11, 2022
    Assignee: Dell Products L.P.
    Inventors: Shao-Szu Ho, Shih-Chang Hu, Wen-Yung Chang, Chin-Yuan Chiang
  • Publication number: 20210333084
    Abstract: Systems and methods may be implemented separately from (and external to) a battery system to detect swollen battery system components within a chassis enclosure of the information handling system, without any physical contact with the battery cells or battery system, and without requiring premature opening of the information handling system chassis enclosure to inspect for battery system swelling. A system user may be automatically warned of detected battery system swelling and/or battery system charging may be automatically terminated upon detected battery system swelling so that information handling system failure and/or system service costs that would otherwise be expended to repair damage caused by swollen battery system components may be prevented.
    Type: Application
    Filed: April 27, 2020
    Publication date: October 28, 2021
    Inventors: Shao-Szu Ho, Shih-Chang Hu, Wen-Yung Chang, Chin-Yuan Chiang
  • Patent number: 7886234
    Abstract: Methods for generating an embedded target image to be stored in a non-volatile memory device of an embedded system as firmware thereof are disclosed. A graphical user interface (GUI) editor is generated to facilitate a user in providing settings information for multiple pins of a chip installed in the embedded system. Source code is generated in response to operating results of the user of the GUI editor. Linking an object file compiled from the generated source code generates the embedded target image.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: February 8, 2011
    Assignee: Mediatek Inc.
    Inventors: Hung-Kai Shih, Shih-Chang Hu, Chih-Wei Ko
  • Patent number: 7873758
    Abstract: A cellular phone. The cellular phone comprises a connector, a first memory module, a second memory module, and a controller. The connector is used for physically connecting the cellular phone to an external device. The first memory module stores phone data. The second memory module stores application data received from the external device. The controller determines whether the connector is connected to the external device. If the connector is not connected to the external device, access right of both the first and second memory modules is granted exclusively to the cellular phone. If the connector is connected to the external device, access right of the first memory is granted exclusively to the cellular phone, and access right of the second memory module is granted exclusively to the external device.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: January 18, 2011
    Assignee: Mediatek Inc.
    Inventors: Shih-Chang Hu, Chia Jung Chen
  • Patent number: 7757010
    Abstract: Methods for managing mass storage devices are provided. An embodiment of a method for managing mass storage devices performed by an electronic device comprises the following steps. It is detected that the electronic device has connected to a computer system. One mass storage driver is selected from multiple mass storage drivers. Information regarding that the selection of the mass storage driver is transmitted to the computer system, thereby directing the computer system to activate the selected mass storage driver.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: July 13, 2010
    Assignee: Mediatek Inc.
    Inventors: Chia Jung Chen, Shih-Chang Hu, Kuan-Sheng Hsueh
  • Publication number: 20100159989
    Abstract: A cellular phone. The cellular phone comprises a connector, a first memory module, a second memory module, and a controller. The connector is used for physically connecting the cellular phone to an external device. The first memory module stores phone data. The second memory module stores application data received from the external device. The controller determines whether the connector is connected to the external device. If the connector is not connected to the external device, access right of both the first and second memory modules is granted exclusively to the cellular phone. If the connector is connected to the external device, access right of the first memory is granted exclusively to the cellular phone, and access right of the second memory module is granted exclusively to the external device.
    Type: Application
    Filed: March 10, 2010
    Publication date: June 24, 2010
    Applicant: MEDIATEK INC.
    Inventors: Shih-Chang Hu, Chia Jung Chen
  • Patent number: 7730236
    Abstract: A cellular phone. The cellular phone comprises a connector, a first memory module, a second memory module, and a controller. The connector is used for physically connecting the cellular phone to an external device. The first memory module stores phone data. The second memory module stores application data received from the external device. The controller determines whether the connector is connected to the external device. If the connector is not connected to the external device, access right of both the first and second memory modules is granted exclusively to the cellular phone. If the connector is connected to the external device, access right of the first memory is granted exclusively to the cellular phone, and access right of the second memory module is granted exclusively to the external device.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 1, 2010
    Assignee: Mediatek Inc.
    Inventors: Shih-Chang Hu, Chia Jung Chen
  • Patent number: 7698474
    Abstract: A virtual first in first out (FIFO) direct memory access (DMA) device applied in an electronic device having a processor, a UART unit and a virtual FIFO unit is provided. In the virtual FIFO DMA device, a DMA unit is for transferring data between the UART unit and the virtual FIFO unit. A virtual FIFO controller, which has a read pointer and a write pointer, is electrically connected with the DMA unit. When the DMA unit reads data from or writes data into the virtual FIFO unit, the virtual FIFO controller correspondingly changes the value of the read pointer or the write pointer. A virtual port is electrically connected to the DMA unit and the processor. A processor reads data from or writes data into the virtual FIFO unit via the virtual port and the DMA unit.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: April 13, 2010
    Assignee: Mediatek Inc.
    Inventors: Yen-Yu Lin, Shih-Chang Hu, Shiau-Wan Chen
  • Publication number: 20090323810
    Abstract: The invention provides an apparatus for video encoding with decoupled data dependency. In one embodiment, the apparatus comprises a buffer, a hardware circuit, and a parameter determination module. The hardware circuit, coupled to the buffer, generates and stores data during performing motion estimation on a current frame and encoding a plurality of macroblocks of the current frame in the buffer. The parameter determination module, coupled to the hardware circuit and the buffer, retrieves the stored data from the buffer, generates at least one reference parameter for a plurality of macroblocks of a future frame according to the retrieved data, and updates data of the buffer with the generated reference parameters after receiving a triggering signal indicating start of data preparation for the future frame from the hardware circuit.
    Type: Application
    Filed: June 26, 2008
    Publication date: December 31, 2009
    Applicant: MEDIATEK INC.
    Inventors: Wen-Jun Liu, Shih-Chang Hu, Shien-Tai Pan
  • Publication number: 20090290636
    Abstract: Video encoding apparatuses and methods with decoupled data dependency are provided. An embodiment of a method for video encoding with decoupled data dependency contains at least steps as follows. Data generated from a macroblock of a previous frame is acquired. At least one reference parameter for a macroblock of a current frame is determined according to the acquired data. The macroblock of the current frame is encoded according to the determined reference parameter to generate an output bitstream.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 26, 2009
    Applicant: MEDIATEK INC.
    Inventors: Wen-Jun LIU, Shih-Chang HU, Shien-Tai PAN
  • Publication number: 20090204735
    Abstract: Methods for selectively activating one of multiple functions provided by a mobile phone are provided. An embodiment of a method for selectively activating one of multiple functions comprises the following steps. That the mobile phone has been coupled to a computer system is detected. A first interface is displayed to facilitate selection of a first function from the functions. That the first function is selected is detected by the first interface. At least one software module is configured to activate the first function, thereby the computer system is directed to employ the mobile phone as a first external electronic device corresponding to the first function.
    Type: Application
    Filed: April 22, 2009
    Publication date: August 13, 2009
    Applicant: MEDIATEK INC.
    Inventors: Chia Jung Chen, Shih-Chang Hu, Meng-Feng Lin
  • Patent number: 7562159
    Abstract: Methods for selectively activating one of multiple functions provided by a mobile phone are provided. An embodiment of a method for selectively activating one of multiple functions comprises the following steps. The coupling of the mobile phone to a computer system is detected. A first interface is displayed to facilitate selection of a first function from the functions. The selection of the first function is detected by the first interface. At least one software module is configured to activate the first function, thereby the computer system is directed to employ the mobile phone as a first external electronic device corresponding to the first function.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: July 14, 2009
    Assignee: Mediatek Inc.
    Inventors: Chia Jung Chen, Shih-Chang Hu, Meng-Feng Lin
  • Publication number: 20080092073
    Abstract: Methods for generating an embedded target image to be stored in a non-volatile memory device of an embedded system as firmware thereof are disclosed. A graphical user interface (GUI) editor is generated to facilitate a user in providing settings information for multiple pins of a chip installed in the embedded system. Source code is generated in response to operating results of the user of the GUI editor. Linking an object file compiled from the generated source code generates the embedded target image.
    Type: Application
    Filed: August 13, 2007
    Publication date: April 17, 2008
    Applicant: MEDIATEK INC.
    Inventors: Hung-Kai Shih, Shih-Chang Hu, Chih-Wei Ko
  • Publication number: 20070264983
    Abstract: Methods for selectively activating one of multiple functions provided by a mobile phone are provided. An embodiment of a method for selectively activating one of multiple functions comprises the following steps. That the mobile phone has been coupled to a computer system is detected. A first interface is displayed to facilitate selection of a first function from the functions. That the first function is selected is detected by the first interface. At least one software module is configured to activate the first function, thereby the computer system is directed to employ the mobile phone as a first external electronic device corresponding to the first function.
    Type: Application
    Filed: July 12, 2006
    Publication date: November 15, 2007
    Applicant: MEDIATEK INC.
    Inventors: Chia Jung Chen, Shih-Chang Hu, Meng-Feng Lin
  • Publication number: 20070255860
    Abstract: Methods for managing mass storage devices are provided. An embodiment of a method for managing mass storage devices performed by an electronic device comprises the following steps. It is detected that the electronic device has connected to a computer system. One mass storage driver is selected from multiple mass storage drivers. Information regarding that the selection of the mass storage driver is transmitted to the computer system, thereby directing the computer system to activate the selected mass storage driver.
    Type: Application
    Filed: July 12, 2006
    Publication date: November 1, 2007
    Applicant: MEDIATEK INC.
    Inventors: Chia Jung Chen, Shih-Chang Hu, Kuan-Sheng Hsueh
  • Publication number: 20070156930
    Abstract: The invention relates to a method for controlling a data transmission between a peripheral device and a host. The method includes: estimating a transmission time of a predetermined amount of data transmitted between the peripheral device and the host; and determining a control scheme to be a polling scheme or an interrupt scheme according to the estimated transmission time for monitoring the data transmission between the peripheral device.
    Type: Application
    Filed: December 30, 2005
    Publication date: July 5, 2007
    Inventors: Peng-Jen Chen, Shih-Chang Hu
  • Publication number: 20070147517
    Abstract: A video processing method for AV synchronization resilience is provided. A first frame is decoded and displayed while a second frame is decoded for a predetermined period of time. It is determined whether the decoding time for the second frame exceeds a defined duration. If so, the first frame is continuously displayed during the decoding time for the second frame. The second frame is displayed while a third frame is decoded for a predetermined period of time.
    Type: Application
    Filed: August 16, 2006
    Publication date: June 28, 2007
    Applicant: MEDIATEK INC.
    Inventor: Shih-Chang Hu