Patents by Inventor Chuh-Min Liu

Chuh-Min 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).

  • Touch pad operable with multi-objects and method of operating same
    Patent number: 9024895
    Abstract: The present invention provides a touch pad operable with multi-objects and a method of operating such a touch pad. The touch pad includes a touch structure for sensing touch points of a first and a second object and a controller for generating corresponding touching signals and related position coordinates. Moreover, the controller calculates at least two movement amount indexes according to coordinate differences between these position coordinates, thereby generating a movement amount control signal to control behaviors of a software object.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 5, 2015
    Assignee: Elan Microelectronics Corporation
    Inventors: Wei-Wen Yang, Chuh-Min Liu, Jian-Wei Chen
  • TOUCH PAD OPERABLE WITH MULTI-OBJECTS AND METHOD OF OPERATING SAME
    Publication number: 20130106745
    Abstract: The present invention provides a touch pad operable with multi-objects and a method of operating such a touch pad. The touch pad includes a touch structure for sensing touch points of a first and a second object and a controller for generating corresponding touching signals and related position coordinates. Moreover, the controller calculates at least two movement amount indexes according to coordinate differences between these position coordinates, thereby generating a movement amount control signal to control behaviors of a software object.
    Type: Application
    Filed: September 13, 2012
    Publication date: May 2, 2013
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Wei-Wen YANG, Chuh-Min LIU, Jian-Wei Chen
  • Touch Pad Operable with Multi-Objects and Method of Operating same
    Publication number: 20120105351
    Abstract: The present invention provides a touch pad operable with multi-objects and a method of operating such a touch pad. The touch pad includes a touch structure for sensing touch points of a first and a second object and a controller for generating corresponding touching signals and related position coordinates. Moreover, the controller calculates at least two movement amount indexes according to coordinate differences between these position coordinates, thereby generating a movement amount control signal to control behaviors of a software object.
    Type: Application
    Filed: January 8, 2012
    Publication date: May 3, 2012
    Inventors: Wei-Wen YANG, Chuh-Min LIU, Chien-Wei CHENG
  • TOUCH PAD OPERABLE WITH MULTI-OBJECTS AND METHOD OF OPERATING SAME
    Publication number: 20090183930
    Abstract: The present invention provides a touch pad operable with multi-objects and a method of operating such a touch pad. The touch pad includes a touch structure for sensing touch points of a first and a second object and a controller for generating corresponding touching signals and related position coordinates. Moreover, the controller calculates at least two movement amount indexes according to coordinate differences between these position coordinates, thereby generating a movement amount control signal to control behaviors of a software object.
    Type: Application
    Filed: March 28, 2008
    Publication date: July 23, 2009
    Inventors: Wei-Wen Yang, Chuh-Min Liu, Chien-Wei Cheng