Patents by Inventor Chung-Yu Liu

Chung-Yu Liu 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: 20240116707
    Abstract: A powered industrial truck includes a lateral movement assembly including four sliding members and four pivotal members both on a wheeled carriage, four links having a first end pivotably secured to the sliding member and a second end pivotably secured to either end of the pivotal member, a motor shaft having two ends pivotably secured to the pivotal members respectively, a first electric motor on one frame member, and four mounts attached to the sliding members respectively; two lift assemblies including a second electric motor, a shaft having two ends rotatably secured to the sliding members respectively, two gear trains at the ends of the shaft respectively, a first gear connected to the second electric motor, a second gear on the shaft, and a first roller chain on the first and second gears; two electric attachments on the platform and being laterally moveable, each attachment. The mount has rollers.
    Type: Application
    Filed: September 21, 2023
    Publication date: April 11, 2024
    Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Chung-Yu Liu
  • Patent number: 8253045
    Abstract: A keypad assembly is used for an electronic device. The keypad assembly includes a support member, a plurality of key strips and a plurality of elastic members. The support member defines a plurality of receiving grooves each with an angled bottom surface. The key strips are received in the receiving grooves. The elastic members are received in the receiving grooves, and each elastic member abuts a corresponding key strip providing a biasing force to extend a portion of the key strips from the receiving groove.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: August 28, 2012
    Assignee: FIH (Hong Kong) Limited
    Inventors: Chung-Yu Liu, Wang-Hung Yeh
  • Patent number: 8143542
    Abstract: A keypad assembly is used for an electronic device. The keypad assembly includes a support member, a plurality of key strips and a plurality of elastic members. The support member defines a plurality of openings and a plurality of cantilever plates, each cantilever plate extending into a corresponding opening. The key strips are received in the openings. Each key strip defines a first slot in which each cantilever plate is received. Each elastic member supports one of the key strips and provides a force extending one portion of the key strips out of its corresponding opening.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: March 27, 2012
    Assignee: Foxconn Communication Technology Corp.
    Inventors: Wang-Hung Yeh, Chung-Yu Liu
  • Patent number: 7989716
    Abstract: A keypad assembly is used for an electronic device. The keypad assembly includes a support member, and a plurality of key strips. The support member defines a plurality of openings and a plurality of cantilever plates, each cantilever plate extending into a corresponding opening. The key strips are received in the openings. Each key strip defines a slot, and each cantilever plate is received in a slot. The cantilever plates provide force to extend one portion of the key strips from the receiving groove.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: August 2, 2011
    Assignee: Foxconn Communication Technology Corp.
    Inventors: Wang-Hung Yeh, Chung-Yu Liu
  • Publication number: 20100307904
    Abstract: A keypad assembly is used for an electronic device. The keypad assembly includes a support member, and a plurality of key strips. The support member defines a plurality of openings and a plurality of cantilever plates, each cantilever plate extending into a corresponding opening. The key strips are received in the openings. Each key strip defines a slot, and each cantilever plate is received in a slot. The cantilever plates provide force to extend one portion of the key strips from the receiving groove.
    Type: Application
    Filed: November 2, 2009
    Publication date: December 9, 2010
    Applicant: Foxconn Communication Technology Corp.
    Inventors: WANG-HUNG YEH, CHUNG-YU LIU
  • Publication number: 20100309026
    Abstract: A keypad assembly is used for an electronic device. The keypad assembly includes a support member, a plurality of key strips and a plurality of elastic members. The support member defines a plurality of receiving grooves each with an angled bottom surface. The key strips are received in the receiving grooves. The elastic members are received in the receiving grooves, and each elastic member abuts a corresponding key strip providing a biasing force to extend a portion of the key strips from the receiving groove.
    Type: Application
    Filed: November 2, 2009
    Publication date: December 9, 2010
    Applicant: Foxconn Communication Technology Corp.
    Inventors: CHUNG-YU LIU, WANG-HUNG YEH
  • Patent number: 7848786
    Abstract: A portable electronic device has various functions such as mobile communication, multimedia entertainment, and data processing. The device includes a main body installed with two keyboards and two slide rails, and two sub-bodies respectively equipped with a display. The sub-bodies are pivoted to each other and rotate through a shaft, and slide along slide rails through connecting members on the main body respectively. Therefore, the sub-bodies can be lifted relative to the main body through the shaft and the connecting members, so as to be optionally drawn close to the main body with the two displays facing the same direction, or to stand on the main body with the two displays facing opposite directions. Therefore, two different operating modes are achieved.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: December 7, 2010
    Assignee: Foxconn Communication Technology Corp.
    Inventors: Chung-Yu Liu, Wang-Hung Yeh, Ping-Chu Tsai
  • Publication number: 20100288613
    Abstract: A keypad assembly is used for an electronic device. The keypad assembly includes a support member, a plurality of key strips and a plurality of elastic members. The support member defines a plurality of openings and a plurality of cantilever plates, each cantilever plate extending into a corresponding opening. The key strips are received in the openings. Each key strip defines a first slot in which each cantilever plate is received. Each elastic member supports one of the key strips and provides a force extending one portion of the key strips out of its corresponding opening.
    Type: Application
    Filed: November 2, 2009
    Publication date: November 18, 2010
    Applicant: FOXCONN COMMUNICATION TECHNOLOGY CORP.
    Inventors: WANG-HUNG YEH, CHUNG-YU LIU
  • Publication number: 20090160776
    Abstract: A hand-held electronic device being held by a user with a single hand for dialing or with both hands for inputting characters includes a body, a keyboard, two sensors respectively disposed on two opposite sides of the body, and a backlight source. The keyboard has keys forming a region marked with a QWERTY keyboard and a region overlapping the above region and marked with a phone keypad. The sensors detect whether the body is held by a single hand on one side or by both hands on two sides and let the backlight source light up the region marked with the phone keypad on the keyboard when the body is held by a single hand. Thus, the region marked with the phone keypad is highlighted out of the QWERTY keyboard, so it is easy for the user to identify the key numbers and dial quickly.
    Type: Application
    Filed: February 22, 2008
    Publication date: June 25, 2009
    Applicant: MOBINNOVA HONG KONG LIMITED
    Inventors: Ping-Chu Tsai, Hung-Ming Chen, Chung-Yu Liu
  • Publication number: 20090160777
    Abstract: A portable electronic device has various functions such as mobile communication, multimedia entertainment, and data processing. The device includes a main body installed with two keyboards and two slide rails, and two sub-bodies respectively equipped with a display. The sub-bodies are pivoted to each other and rotate through a shaft, and slide along slide rails through connecting members on the main body respectively. Therefore, the sub-bodies can be lifted relative to the main body through the shaft and the connecting members, so as to be optionally drawn close to the main body with the two displays facing the same direction, or to stand on the main body with the two displays facing opposite directions. Therefore, two different operating modes are achieved.
    Type: Application
    Filed: March 7, 2008
    Publication date: June 25, 2009
    Applicant: Mobinnova Hong Kong Limited
    Inventors: Chung-Yu LIU, Wang-Hung Yeh, Ping-Chu Tsai
  • Publication number: 20090107828
    Abstract: A keyboard with five-direction keys is used for a portable electronic apparatus. The keyboard includes a casing with a plurality of openings; and a plurality of keys arranged on the casing in array fashion. Four pattern areas are printed on four diagonal corners of each opening. A legend is printed on each of the pattern areas. The legend is one of letters A to Z, and special symbols such as star key and pound key, and direction signs. Each of the keys is located in one opening, and includes a joystick unit and a keycap arranged on the joystick unit. The keycap comprises a keytop thereon and the keytop is printed with one of numbers 0 to 9. The keyboard generates an electronic signal corresponding to one legend when the keycap is moved laterally in diagonal direction. The keyboard generates an electronic signal corresponding to a number when the keycap is pressed downward.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventors: Wang-Hung Yeh, Chung-Yu Liu
  • Patent number: 6954875
    Abstract: A method and apparatus for recovering a real-time computer system by running multiple versions of an operational program including multiple data partitions are described wherein each of the multiple data partitions is associated with one version of the operational program and wherein one of the versions of the operational program is a ‘controller’ program and the other versions are ‘identity observer’ programs.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: October 11, 2005
    Assignee: Honeywell International Inc.
    Inventor: Chung-Yu Liu
  • Publication number: 20030033553
    Abstract: A method and apparatus for recovering a real-time computer system by running multiple versions of an operational program including multiple data partitions are described wherein each of the multiple data partitions is associated with one version of the operational program and wherein one of the versions of the operational program is a ‘controller’ program and the other versions are ‘identity observer’ programs.
    Type: Application
    Filed: March 12, 2002
    Publication date: February 13, 2003
    Applicant: Honeywell International Inc.
    Inventor: Chung-Yu Liu