Patents by Inventor Tsai Chu-Chia

Tsai Chu-Chia 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).

  • Keypad illuminating system for a data processing device
    Patent number: 6834975
    Abstract: A keypad illuminating system for a data processing device includes a keypad, a light source, and a photoluminescent substance. The light source is adapted to be mounted on the data processing device for illuminating the keypad. The photoluminescent substance is associated with the keypad for emitting visible light in response to the light emitted from the light source.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: December 28, 2004
    Assignee: Wistron Corporation
    Inventors: Tsai Chu-Chia, Li Chien-Te, Lee Cheng-Chang, Hung Huang-Lung
  • Keypad illuminating system for a data processing device
    Publication number: 20040062033
    Abstract: A keypad illuminating system for a data processing device includes a keypad, a light source, and a photoluminescent substance. The light source is adapted to be mounted on the data processing device for illuminating the keypad. The photoluminescent substance is associated with the keypad for emitting visible light in response to the light emitted from the light source.
    Type: Application
    Filed: December 11, 2002
    Publication date: April 1, 2004
    Inventors: Tsai Chu-Chia, Li Chien-Te, Lee Cheng-Chang, Hung Huang-Lung
  • Personal digital assistant for connecting with a communtcations module
    Patent number: 6646873
    Abstract: A PDA for connecting with selectively installed communications modules. Both communications modules have their own corresponding connector and fixing device connected electrically and mechanically between the PDA and the communications module. With the above modules, the PDA becomes a tool with extendable specific communication functions. The communications module can be either a GPS or a cellular phone handset's communications module. They can be attached to a PDA to provide additional communication functions.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: November 11, 2003
    Assignees: Wistron Corporation, Acer Incorporated
    Inventors: Tsai Chu-Chia, Cheng-Hsin Sung
  • Personal digital assistant for connecting with a communtcations module
    Publication number: 20020142799
    Abstract: A PDA for connecting with selectively installed communications modules. Both communications modules have their own corresponding connector and fixing device connected electrically and mechanically between the PDA and the communications module. With the above modules, the PDA becomes a tool with extendable specific communication functions. The communications module can be either a GPS or a cellular phone handset's communications module. They can be attached to a PDA to provide additional communication functions.
    Type: Application
    Filed: March 27, 2002
    Publication date: October 3, 2002
    Inventors: Tsai Chu-Chia, Cheng-Hsin Sung
  • Ergonomic keyboard
    Publication number: 20020044413
    Abstract: An ergonomic keyboard includes a base and a plurality of keys that is further arranged into a plurality of adjacent key rows. The key rows having letter keys and numeral keys are equal-spaced arranged on the base to form adjacent concentric arcs with a concentric center located opposing to a user side of the keyboard. Further, the letter keys and the numeral keys are identically shaped and are evenly arranged into the adjacent key rows.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 18, 2002
    Inventor: Tsai Chu-Chia