Patents by Inventor Chao Carl Chen

Chao Carl 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: 8358267
    Abstract: A handheld electronic device configured to receive text messages has a body with a front face and top and bottom portions relative to text entry use orientation of the handheld device. A display screen is located on the front face of the body. The display screen presents information to the operator of the handheld device. A microprocessor located within the device is configured to receive operator commands from user inputs located on the device and instruct commensurate changes to the display screen. A navigation row of user inputs is located on the front face of the body below the display. The navigation row of user inputs includes a multi-directional navigation tool assembly laterally flanked by a pair of conjoined, depressibly actuable input keys. Each of the inputs keys is located substantially opposite the other across the navigation tool assembly and positioned adjacent to lateral sides of the navigation tool assembly.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: January 22, 2013
    Assignee: Research In Motion Limited
    Inventors: Chao Carl Chen, Cortez Corley, Todd Wood, Jana Lynn Papke
  • Publication number: 20100108482
    Abstract: For a cell-phone or PDA, the rows of key-caps include respective light-strips, which pick up light from respective LEDs surface-mounted on the PCB. The light-strips are sandwiched between the key-caps and the key-switch actuators (whereby the light-strips move with the keys when the keys are depressed). Sockets for receiving the key-caps are co-molded to the light-strips. Sockets are provided in the resilient webs of the keys for receiving under-blocks co-molded to the light-strips.
    Type: Application
    Filed: January 11, 2010
    Publication date: May 6, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Chao Carl CHEN, Timothy Herbert KYOWSKI, Dennis James PENNER
  • Patent number: 7671290
    Abstract: For a cell-phone or PDA, the rows of key-caps include respective light-strips, which pick up light from respective LEDs surface-mounted on the PCB. The light-strips are sandwiched between the key-caps and the key-switch actuators (whereby the light-strips move with the keys when the keys are depressed). Sockets for receiving the key-caps are co-molded to the light-strips. Sockets are provided in the resilient webs of the keys for receiving under-blocks co-molded to the light-strips.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: March 2, 2010
    Assignee: Research In Motion Limited
    Inventors: Chao Carl Chen, Timothy Herbert Kyowski, Dennis James Penner
  • Publication number: 20090107816
    Abstract: For a cell-phone or PDA, the rows of key-caps include respective light-strips, which pick up light from respective LEDs surface-mounted on the PCB. The light-strips are sandwiched between the key-caps and the key-switch actuators (whereby the light-strips move with the keys when the keys are depressed). Sockets for receiving the key-caps are co-molded to the light-strips. Sockets are provided in the resilient webs of the keys for receiving under-blocks co-molded to the light-strips.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventors: Chao Carl CHEN, Timothy Herbert Kyowski, Dennis James Penner
  • Publication number: 20090073115
    Abstract: A handheld electronic device configured to receive text messages has a body with a front face and top and bottom portions relative to text entry use orientation of the handheld device. A display screen is located on the front face of the body. The display screen presents information to the operator of the handheld device. A microprocessor located within the device is configured to receive operator commands from user inputs located on the device and instruct commensurate changes to the display screen. A navigation row of user inputs is located on the front face of the body below the display. The navigation row of user inputs includes a multi-directional navigation tool assembly laterally flanked by a pair of conjoined, depressibly actuable input keys. Each of the inputs keys is located substantially opposite the other across the navigation tool assembly and positioned adjacent to lateral sides of the navigation tool assembly.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 19, 2009
    Inventors: Chao Carl Chen, Cortez Corley, Todd Wood, Jana Lynn Papke