Patents by Inventor Yu Chang Chang

Yu Chang Chang 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: 20040042231
    Abstract: A structure of light box assembly is disclosed in the invention, which includes an upper plastic frame and a lower plastic frame, and each of them can be formed by a plastic sheet or two same plastic sheets. Besides, at least four supporting columns are used to connect and support the two plastic frames. In addition, a plurality of side plate, an upper cover plate, and a lower cover plates are separately installed according to different planes formed by each of the plastic frames and each of the supporting columns so as to construct a box body. Also, an erect diffusion plate is provided at each corner of the box body corresponding to the position of its relative supporting column so that each of the four diffusion plates is to cover the outer field of each of the vertical light tubes. Thus, uniformly distributed light can be provided, and a solid and uniform light source can be provided as well.
    Type: Application
    Filed: June 26, 2003
    Publication date: March 4, 2004
    Inventors: Peng-Cheng Lai, Yu-Chang Chang, Kun-Yan Wu, Yao-Lung Tsai
  • Patent number: 6672737
    Abstract: A uniform radiation intensity generation box using a symmetrical lighting source is constructed to include a housing, the housing having a top opening for the mounting of a camera for taking photos of a real object and a door at one side, a plurality of lamp tubes vertically symmetrically provided inside the housing, and a plurality of diffusion plates mounted inside the housing and covered over the lamp tubes, each diffusion plate having a plurality of diffusing grains uniformly arranged in one face thereof and adapted for diffusing light from the lamp tubes in all directions inside the housing.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: January 6, 2004
    Assignee: Waytech Development, Inc.
    Inventors: Peng Cheng Lai, Douglas W. Wang, Wei Shang Cheng, Yu Chang Chang, Kueng Yan Wu
  • Publication number: 20030193800
    Abstract: A uniformly radiation intensity generation box by symmetrical lighting source is constructed to include a housing, the housing having a top opening for the mounting of a camera for taking photos of a real object and a door at one side, a plurality of lamp tubes vertically symmetrically provided inside the housing, and a plurality of diffusion plates mounted inside the housing and covered over the lamp tubes, each diffusion plate having a plurality of diffusing grains uniformly arranged in one face thereof and adapted for diffusing light from the lamp tubes in all directions inside the housing.
    Type: Application
    Filed: May 17, 2002
    Publication date: October 16, 2003
    Inventors: Peng Cheng Lai, Douglas W. Wang, Wei Shang Chen, Yu Chang Chang, Kueng Yan Wu
  • Publication number: 20030122843
    Abstract: A method and apparatus to obtain a substantially accurate digital color image of a subject at relatively low cost. A moveable enclosure containing a controlled lighting source provides a controlled lighting environment that costs considerably less than a traditional photo studio and is more convenient to use for many applications. A digital color image capture device captures an image of a subject in the enclosure. The captured image is sent to a computer where a stored color profile previously obtained from a calibration of the digital image capture device is used by a software program to automatically correct the color of the captured image. The color-corrected image can then be distributed to other computers for display.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 3, 2003
    Inventors: Peng-Cheng Lai, Douglas W. Wang, Wei-Shang Chen, Shou-Liang Keh, Yu-Chang Chang
  • Publication number: 20020196882
    Abstract: The present invention provides a transmission method capable of synchronously transferring information in many ways to simultaneously transfer data to plural receivers. In the transmission method of the present invention, a control menu and data to be transferred are first provided, and predetermined receivers are then selected. Next, an image capturing device is used to scan the control menu and the data to be transferred and convert them into an electric signal, which is then transferred to a computer server. The computer server discriminates the electric signal and converts it into an image signal. If the result of discrimination is successful, the image signal is transferred to an FTP server or a client computer so that the receivers can receive the image signal in predetermined ways of reception. The present invention has the characteristics of synchronous and manifold transmission, fast transmission, and convenient use.
    Type: Application
    Filed: June 26, 2001
    Publication date: December 26, 2002
    Inventors: Douglas W. Wang, Yu-Chang Chang, Wei-Shang Chen, Dick Chang, Yao-Lung Tsai
  • Publication number: 20020110285
    Abstract: A method and system for managing a digital image using online driving from a network are disclosed. A digital image is formed by a capturing device and then is stored in a first memory of the capturing device. Afterwards, a program media automatically diagnoses the capturing device and then installs a driver corresponding to the capturing device for online driving of the capturing device. The digital image in the first memory is uploaded to a second memory of the image server, and therefore the capacity of the first memory is completely released. Thereafter, the digital image is properly edited and is stored in the second memory to manage and distribute with respect to the digital image. Finally, a remote PC is linked to the image server via the Internet for selectively downloading the digital image saved in the secondary memory.
    Type: Application
    Filed: April 17, 2001
    Publication date: August 15, 2002
    Inventors: Douglas W. Wang, Yu-Chang Chang, Wei-Shang Chen, Lin-Chu Weng, Yao-Lung Tsai