Patents by Inventor Wen-Ji Tsai

Wen-Ji Tsai 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: 20100054721
    Abstract: A document snapshot device is provided. The document snapshot device comprises a baseboard, a camera and a foldable supporting means. The baseboard comprises a central area to place a document and a connecting chamfer. The camera comprises a pivot. The foldable supporting means comprises a first supporting means connecting the connecting chamfers, a second supporting means connecting the pivot of the camera and a third supporting means connecting the first and the second supporting means. The first, second and third supporting means can stretch along a first plane to form a first angle between the first and the third supporting means and a second angle between the second and the third supporting means. The camera can rotate along a second plane with the pivot to form a third angle relative to a stretching direction from the second supporting means to the camera to aim at the document to take a snapshot.
    Type: Application
    Filed: November 14, 2008
    Publication date: March 4, 2010
    Applicant: Quanta Computer Inc.
    Inventors: Yun-Liang Hsieh, Wen-Ji Tsai, Jung-Wen Chang
  • Patent number: 7644472
    Abstract: A hinge structure is described. A hollow cylinder has a positioning slot in an inner wall thereof. A movable part has a positioning convex portion and a plurality of engraved portions. The positioning convex portion engages with the positioning slot such that the movable part slides within the hollow cylinder. A cover is fixed to the hollow cylinder to secure the movable part and the resilient part within the hollow cylinder. A resilient part is disposed between the cover and the movable part so as to provide the movable part a resilient recovery force. The engraved portions of the movable part are for engaging a rotatable member.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: January 12, 2010
    Assignee: Quanta Computer Inc.
    Inventors: Jung-Wen Chang, Wen-Ji Tsai, Wan-Chi Lin
  • Patent number: 7563040
    Abstract: A webcam built in an electronic device includes a housing, a video camera, and a latching mechanism. The video camera is movable between a first location in the housing and a second location outside the housing. The latching mechanism maintains the video camera at the first location and the second location.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: July 21, 2009
    Assignee: Quanta Computer Inc.
    Inventors: Wen-Ji Tsai, Yi-Chun Lin, Wan-Chi Lin, Jung-Wen Chang
  • Publication number: 20080104800
    Abstract: A hinge structure is described. A hollow cylinder has a positioning slot in an inner wall thereof. A movable part has a positioning convex portion and a plurality of engraved portions. The positioning convex portion engages with the positioning slot such that the movable part slides within the hollow cylinder. A cover is fixed to the hollow cylinder to secure the movable part and the resilient part within the hollow cylinder. A resilient part is disposed between the cover and the movable part so as to provide the movable part a resilient recovery force. The engraved portions of the movable part are for engaging a rotatable member.
    Type: Application
    Filed: March 2, 2007
    Publication date: May 8, 2008
    Applicant: Quanta Computer Inc.
    Inventors: Jung-Wen Chang, Wen-Ji Tsai, Wan-Chi Lin
  • Publication number: 20070296706
    Abstract: A luminous keyboard module uses a luminous material to produce keys of the keyboard module, or uses the luminous material to produce a backlight plate under the keys. When an UV light source irradiates UV light on the keys or the backlight plate containing the luminous material, the keys or the backlight plate can illuminate visible light to show the character symbols on the corresponding keys clearly under environment with insufficient light.
    Type: Application
    Filed: June 5, 2007
    Publication date: December 27, 2007
    Applicant: Quanta Computer Inc.
    Inventors: Ching-Cheng Wang, Yi-Chun Lin, Wen-Ji Tsai
  • Publication number: 20070253703
    Abstract: A webcam built in an electronic device includes a housing, a video camera, and a latching mechanism. The video camera is movable between a first location in the housing and a second location outside the housing. The latching mechanism maintains the video camera at the first location and the second location.
    Type: Application
    Filed: August 11, 2006
    Publication date: November 1, 2007
    Applicant: QUANTA COMPUTER INC.
    Inventors: Wen-Ji Tsai, Yi-Chun Lin, Wan-Chi Lin, Jung-Wen Chang
  • Patent number: 7239791
    Abstract: A light guide mechanism includes a surface member, a bottom member, a connecting member and a light source. The connecting member is used to connect the surface member and the bottom member. The bottom member has a first side and a second side, and the light source faces the first side and is separated from the first side by a distance of 11 mm˜15 mm. The light source is also separated from the top surface by a distance of 10 mm˜15 mm. The first side is covered by a diffusion material to diffuse the light from the light source and the second side is covered by an aluminum material to prevent the light source from being diffused.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: July 3, 2007
    Assignee: Quanta Computer Inc.
    Inventors: Jung-Wen Chang, Wen-Ji Tsai, Wan-Chi Lin
  • Publication number: 20060204323
    Abstract: A torque changeable pivot is described. The torque changeable pivot includes a cylinder, a spindle, and a pin. The cylinder further includes a cylinder shell and the spindle further includes a first rotational portion and a second rotational portion. A peripheral surface of the first rotational portion couples to an inner surface of the cylinder shell and the first rotational portion further includes a first coupling member eccentrically disposed on the first rotational portion. A peripheral surface of the second rotational portion couples to the inner surface of the cylinder shell and the second rotational portion further includes a second coupling member eccentrically disposed on the second rotational portion. When the first coupling member is aligned with the second coupling member and the pin is inserted into the first coupling member and the second coupling member, the first rotational portion and the second rotational portion are combined together.
    Type: Application
    Filed: June 28, 2005
    Publication date: September 14, 2006
    Inventors: Wen-Ji Tsai, Jung-Wen Chang
  • Patent number: 7040900
    Abstract: A main board with a base comprising a first port and a second port parallel to each other and with a gap formed therebetween. First and second connectors are selectively disposed on the base. When the first connector is disposed on the base, a first distance is formed between first pins and a standard surface. When the second connector is disposed on the base, a second distance is formed between second pins and the standard surface. The difference between the first and second distances is equal to the gap. The first connector connects PATA hard disk drive, and the second connector connects SATA hard disk drive.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: May 9, 2006
    Assignee: Quanta Computer Inc.
    Inventors: Tai-Shing Wan, Wen-Ji Tsai
  • Publication number: 20050233616
    Abstract: A main board with a base comprising a first port and a second port parallel to each other and with a gap formed therebetween. First and second connectors are selectively disposed on the base. When the first connector is disposed on the base, a first distance is formed between first pins and a standard surface. When the second connector is disposed on the base, a second distance is formed between second pins and the standard surface. The difference between the first and second distances is equal to the gap. The first connector connects PATA hard disk drive, and the second connector connects SATA hard disk drive.
    Type: Application
    Filed: February 22, 2005
    Publication date: October 20, 2005
    Inventors: Tai-Shing Wan, Wen-Ji Tsai