Patents by Inventor Chuwn-Jen Chien

Chuwn-Jen Chien 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: 7729020
    Abstract: A transmission mechanism of an image scanner with adjustable resolution is disclosed.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: June 1, 2010
    Inventor: Chuwn-Jen Chien
  • Publication number: 20070127088
    Abstract: A transmission mechanism of an image scanner with adjustable resolution is disclosed.
    Type: Application
    Filed: October 18, 2006
    Publication date: June 7, 2007
    Applicant: Transpacific Plasma, LLC
    Inventor: Chuwn-Jen Chien
  • Patent number: 7154639
    Abstract: A transmission mechanism of an image scanner with adjustable resolution is disclosed.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: December 26, 2006
    Inventor: Chuwn-Jen Chien
  • Publication number: 20030147109
    Abstract: A carriage structure for use with an image scanner is disclosed. The carriage structure includes a first reflective mirror set for reflecting light from a scanned object, a lens disposed downstream of the first reflective mirror set in an optical path direction for refracting the light reflected by the first reflective mirror set, a second reflective mirror set disposed downstream of the lens in the optical path direction for further reflecting the light refracted by the lens, and a photoelectric conversion device disposed downstream of the second reflective mirror set in the optical path direction for receiving and converting the light from the second reflective mirror set into electric level signals.
    Type: Application
    Filed: August 13, 2002
    Publication date: August 7, 2003
    Inventor: Chuwn-Jen Chien
  • Patent number: 6581834
    Abstract: The image processing apparatus includes a scanner portion and a reader portion. The scanner portion is used for converting an image data of a scanned object into a digital data to be processed by a first computer. The reader portion is detachably installed in a receptacle of the scanner portion for receiving a storage medium with stored data therein, wherein the reader portion has a first connector and a second connector thereon. When the reader portion is installed in the receptacle to be electrically connected with the scanner portion, the data are transferred to the first computer via the scanner portion. When the reader portion is detached from the receptacle and has the second connector thereof electrically connected with a second computer, the data are transferred to the second computer.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: June 24, 2003
    Assignee: Primax Electronics, Ltd.
    Inventor: Chuwn-Jen Chien
  • Publication number: 20030081271
    Abstract: A transmission mechanism of an image scanner with adjustable resolution is disclosed.
    Type: Application
    Filed: April 12, 2002
    Publication date: May 1, 2003
    Inventor: Chuwn-Jen Chien
  • Publication number: 20030075605
    Abstract: An image processing apparatus is provided. The image processing apparatus includes a scanner portion and a reader portion. The scanner portion is used for converting an image data of a scanned object into a digital data to be processed by a first computer. The reader portion is detachably installed in a receptacle of the scanner portion for receiving a storage medium with stored data therein, wherein the reader portion has a first connector and a second connector thereon. When the reader portion is installed in the receptacle to be electrically connected with the scanner portion, the data are transferred to the first computer via the scanner portion. When the reader portion is detached from the receptacle and has the second connector thereof electrically connected with a second computer, the data are transferred to the second computer.
    Type: Application
    Filed: April 15, 2002
    Publication date: April 24, 2003
    Inventor: Chuwn-Jen Chien
  • Patent number: 6046449
    Abstract: The present invention provides a housing comprising a rectangular transparent planar board for placing documents to be scanned and a rectangular case for placing a scanning module. The housing comprises a plurality of clasps for fixing the transparent planar board within a flatbed scanner and comprises front, rear, left and right ends. The case comprises four upright sides and a rectangular opening installed above the four upright sides for mounting the transparent planar board. The opening comprises front, rear, left and right sides. The left and right sides of the opening each comprises an L-shaped groove for mounting the left and right ends of the transparent planar board, respectively. The front and rear sides of the opening each comprises a clasp for mounting the front and rear ends of the transparent planar board.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: April 4, 2000
    Assignee: Primax Electronics Ltd.
    Inventor: Chuwn-Jen Chien