Patents by Inventor Etsuo Sugimoto

Etsuo Sugimoto 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).

  • Coherent laser radar system and target measurement method
    Patent number: 6469778
    Abstract: A coherent laser radar system includes a pulsed laser oscillating a pulsed laser beam which is split into two parts by an optical divider. A first part of the two is transmitted as a transmitted beam via a beam splitter. A second part is supplied to a delay line via a coupling optics and others to be delayed by a predetermined time as a local beam, and is incident onto an optical coupler. The received beam from the target is incident onto the optical coupler via a scanning optics and so on. A photodetector carries out the coherent detection of the light beam coupled by the optical coupler. A signal processor computes a target velocity and the like from a signal generated by the detection and converted into a digital signal by an A/D converter. This makes it possible to solve a problem of a conventional system in that the system configuration is complicated and expensive.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: October 22, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kimio Asaka, Yoshihito Hirano, Takayuki Yanagisawa, Shusou Wadaka, Yasuisa Ooga, Etsuo Sugimoto
  • Coherent laser radar system and target measurement method
    Publication number: 20010009458
    Abstract: A coherent laser radar system includes a pulsed laser oscillating a pulsed laser beam which is split into two parts by an optical divider. A first part of the two is transmitted as a transmitted beam via a beam splitter. A second part is supplied to a delay line via a coupling optics and others to be delayed by a predetermined time as a local beam, and is incident onto an optical coupler. The received beam from the target is incident onto the optical coupler via a scanning optics and so on. A photodetector carries out the coherent detection of the light beam coupled by the optical coupler. A signal processor computes a target velocity and the like from a signal generated by the detection and converted into a digital signal by an A/D converter. This makes it possible to solve a problem of a conventional system in that the system configuration is complicated and expensive.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 26, 2001
    Inventors: Kimio Asaka, Yoshihito Hirano, Takayuki Yanagisawa, Shusou Wadaka, Yasuisa Ooga, Etsuo Sugimoto, Kyoko Sugimoto