Patents by Inventor Darwin Hu

Darwin Hu 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: 6031639
    Abstract: A mechanical, electrical and optical scanning apparatus for producing a digital image of a two-dimensional original object that can be either opaque or transparent. A platform supports a camera with precision zoom/focus control for receiving light energy from the object, and the light is converted into electrical energy in a digital format. Opaque objects are supported separately from transparent objects on a carriage, and a light source is supported pivotly for illuminating these objects during scanning in a different manner.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: February 29, 2000
    Assignee: Microtek Artix Corporation
    Inventors: Darwin Hu, Lawrence Huang, Alpha Lan-Chung Hou
  • Patent number: 5946110
    Abstract: A mechanical, electrical and optical scanning apparatus for producing a digital image of a two-dimensional original object in which the combined motions of multiple platforms or carriages along one dimension of the two-dimensional original object provides both low resolution scan of the original object and high resolution scan of the original object as well as intermediate resolutions. One of the platforms carries a camera with precision zoom/focus control for receiving light energy from said original object along the other of its dimensions converting it into electrical energy in a digital format. This platform provides low resolution scanning. The other platform carries the original object and provides high resolution scanning but moves only a fraction of the length of the original object. Combined motion of the two platforms provides high resolution scanning along the entire length of the two-dimensional original object.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: August 31, 1999
    Assignee: Microtek Artix Corporation
    Inventors: Darwin Hu, Lawrence Huang
  • Patent number: 5459579
    Abstract: A multifunctional document processing system receives document signals from a local or a remote device and processes the document signals utilizing a host computer for transmission to the local or remote device. The system has a multifunctional local peripheral device which includes a scanner for optically scanning document information, for converting the scanned document information into electrical document signals and for transmitting the document signals to the host computer. The multifunctional local peripheral device also includes a recording device, such as a printer for receiving document signals from the host computer and for producing a recorded form of the document information, such as a printed document based on the received document signals.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: October 17, 1995
    Assignee: Oki America, Inc.
    Inventors: Darwin Hu, Keisaku Kano, John J. Ring
  • Patent number: 5361134
    Abstract: A multifunctional document processing system for faxing, copying, printing or scanning document information and for transmitting and receiving document signals to and from a remote device. The system comprises a multifunctional local device which includes a scanner for optically scanning document information, for converting the scanned document information into electrical document signals and for transmitting the document signals to the processor. The multifunctional local device also includes a recording device, such as a printer for receiving document signals from the processor and for producing a recorded form of the document information, such as a printed document based on the received document signals. A control module is interfaced between the processor and the multifunctional local device for receiving document signals from the multifunctional local device and from the remote device and for sending the received documents signals to the processor.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: November 1, 1994
    Assignee: Oki America, Inc.
    Inventors: Darwin Hu, John J. Ring
  • Patent number: D338033
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: August 3, 1993
    Assignee: Oki Electric Industrial Company, Ltd.
    Inventors: Kazuo Yoshida, Morison S. Cousins, Montgomery Teague, Darwin Hu, Arthur J. Henry
  • Patent number: H1677
    Abstract: A control module controls the operation of a multifunctional peripheral device. A control bus receives data from at least one auxiliary device associated with the control module. A control processor processes the received data. A control memory stores the received data. A video interface converts the received data into video data signals which are transmitted to the multifunctional peripheral device.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: September 2, 1997
    Assignee: Oki America, Inc.
    Inventors: Darwin Hu, Jim Lo, Tokuhiro Hasegawa, Banky Mor, Nobuyuki Sato