Patents by Inventor Pi-Chi Chen

Pi-Chi Chen 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: 9305452
    Abstract: A battery protection system applicable to an electronic device includes a battery, a control module, a message generating module and an input interface. The control module is electrically connected to the battery for detecting if the battery is in an abnormal state. The message generating module is electrically connected to the control module for generating a battery-error warning message when the control module detects that the battery is in the abnormal state. The input interface is electrically connected to the control module for transmitting a user command to the control module after the battery-error warning message is generated, thereby enabling the control module to release the abnormal state of the battery according to the user command. A battery protection method is also provided.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: April 5, 2016
    Assignee: QUANTA COMPUTER INC.
    Inventors: Hsiang-Sheng Kung, Wei-Ting Yen, Pi-Chi Chen
  • Publication number: 20150339909
    Abstract: A battery protection system applicable to an electronic device includes a battery, a control module, a message generating module and an input interface. The control module is electrically connected to the battery for detecting if the battery is in an abnormal state. The message generating module is electrically connected to the control module for generating a battery-error warning message when the control module detects that the battery is in the abnormal state. The input interface is electrically connected to the control module for transmitting a user command to the control module after the battery-error warning message is generated, thereby enabling the control module to release the abnormal state of the battery according to the user command. A battery protection method is also provided.
    Type: Application
    Filed: August 13, 2014
    Publication date: November 26, 2015
    Applicant: Quanta Computer Inc.
    Inventors: Hsiang-Sheng KUNG, Wei-Ting YEN, Pi-Chi CHEN
  • Patent number: 8667610
    Abstract: A portable computer and a charging method thereof are provided. The portable computer includes a charge integrated circuit (IC), a basic input/output system (BIOS) and embedded controller (EC), a south bridge chip, a north bridge chip and a central processing unit (CPU). After the portable computer is connected to a battery, the BIOS and EC controls the south bridge chip to read a sealed security bit of the battery and checks whether the sealed security bit equals a default value. The BIOS and EC controls the south bridge chip to read a battery data of the battery if the sealed security bit equals default value. The BIOS and EC controls the charge IC via the south bridge chip to charge the battery according to the battery data. The CPU controls the south bridge chip and the north bridge chip.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: March 4, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Pi-Chi Chen, Wei-Ting Yen, Cheng-Lu Lin
  • Patent number: 8564448
    Abstract: A portable computer system including a battery, a power switch and a computer unit is provided. The battery provides a supply signal to the power switch. The computer unit includes an embedded controller (EC), a driver and a user interface device. The EC determines whether the battery satisfies a low power condition according to the supply signal. If so, the EC provides a driving supply signal. The driver determines whether the supply signal satisfies a low voltage condition according to the driving supply signal. If so, the driver triggers an alert event. The user interface device triggers a user notification event according to the alert event. The power switch is further turned on/off in response to an operation event for respectively providing the supply signal to power the computer unit and put the computer unit in a power cut-off state.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: October 22, 2013
    Assignee: Quanta Computer Inc.
    Inventors: Pi-Chi Chen, Wei-Ting Yen
  • Publication number: 20120075106
    Abstract: A portable computer system including a battery, a power switch and a computer unit is provided. The battery provides a supply signal to the power switch. The computer unit includes an embedded controller (EC), a driver and a user interface device. The EC determines whether the battery satisfies a low power condition according to the supply signal. If so, the EC provides a driving supply signal. The driver determines whether the supply signal satisfies a low voltage condition according to the driving supply signal. If so, the driver triggers an alert event. The user interface device triggers a user notification event according to the alert event. The power switch is further turned on/off in response to an operation event for respectively providing the supply signal to power the computer unit and put the computer unit in a power cut-off state.
    Type: Application
    Filed: March 16, 2011
    Publication date: March 29, 2012
    Applicant: Quanta Computer Inc.
    Inventors: Pi-Chi CHEN, Wei-Ting Yen
  • Publication number: 20100268970
    Abstract: A portable computer and a charging method thereof are provided. The portable computer includes a charge integrated circuit (IC), a basic input/output system (BIOS) and embedded controller (EC), a south bridge chip, a north bridge chip and a central processing unit (CPU). After the portable computer is connected to a battery, the BIOS and EC controls the south bridge chip to read a sealed security bit of the battery and checks whether the sealed security bit equals a default value. The BIOS and EC controls the south bridge chip to read a battery data of the battery if the sealed security bit equals default value. The BIOS and EC controls the charge IC via the south bridge chip to charge the battery according to the battery data. The CPU controls the south bridge chip and the north bridge chip.
    Type: Application
    Filed: October 23, 2009
    Publication date: October 21, 2010
    Applicant: Quanta Computer Inc.
    Inventors: Pi-Chi Chen, Wei-Ting Yen, Cheng-Lu Lin
  • Patent number: 5379885
    Abstract: A rotary tool carrier assembly includes a base having a ball race, and a tool carrier unit fastened to the base and revolvably supported on the ball race, the tool carrier unit being consisted of a bottom tool carrier supported on the ball race having upright stop rods and recessed holes and linked sloping cells for carrying different drill gimlets and tool bits and sockets, a top tool carrier having a plurality of tool hanging holes for hanging tools and tool storage chambers for keeping screws and nuts, and an upright support connected between the bottom tool carrier and the top tool carrier.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: January 10, 1995
    Inventor: Pi-Chi Chen
  • Patent number: 4820090
    Abstract: The present invention provides a multipurpose handle grip for holding electric tools, more particularly a handle for slipping on an electric driver or electric drill to effectively carry and release the driver head or the drill and to stably facilitate the operation of the electric tools and comprises a driver head strap, a handle plate and a locating bushing; the driver head strap comprising a plurality of slip holes around the circumference arranged in good order, an inner thread at the rear end for connection of the strap with the holder plate of the handle plate by way of a screw joint, and a transparent revolving cover, the revolving cover having a circular outlet; the locating bushing having a smaller inner diameter for easy insertion of the bushing into the locating hole of the holder plate for fixation of electric tools of different size; the handle plate comprising a handle and a holder plate, the holder plate having a locating hole for fixation of electric tools, a flange at the front and an outer t
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: April 11, 1989
    Inventor: Pi-Chi Chen
  • Patent number: D319578
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: September 3, 1991
    Inventor: Pi-Chi Chen
  • Patent number: D321788
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: November 26, 1991
    Inventor: Pi-Chi Chen
  • Patent number: D331498
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: December 8, 1992
    Inventor: Pi-Chi Chen
  • Patent number: D332868
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: February 2, 1993
    Inventor: Pi-Chi Chen