Patents by Inventor Berlin Ha

Berlin Ha 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).

  • Modular wavelength division multiplexing (WDM) connector
    Patent number: 6735361
    Abstract: A modular connector having multiple ports, comprising a housing having a first end and a second end, a first optical port on the first end, a second optical port on the first end, a third optical port on the second end, a fiber bragg grating (FBG) within the housing optically connected to the first port, said FBG configured to reflect a set wavelength back and away from the first port, a coupler within the housing optically connected to the FBG, the second port, and the third port; and wherein each of said optical ports, once connected, is capable of supporting the housing without additional support.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: May 11, 2004
    Assignee: Stratos Lightwave, Inc.
    Inventors: Patrick B. Gilliland, Scott C. Erickson, Theodore E. Washburn, Berlin Ha, Sterling S. Rooke
  • Modular wavelength division multiplexing (WDM) connector
    Publication number: 20040013368
    Abstract: A modular connector having multiple ports, comprising a housing having a first end and a second end, a first optical port on the first end, a second optical port on the first end, a third optical port on the second end, a fiber bragg grating (FBG) within the housing optically connected to the first port, said FBG configured to reflect a set wavelength back and away from the first port, a coupler within the housing optically connected to the FBG, the second port, and the third port; and wherein each of said optical ports, once connected, is capable of supporting the housing without additional support.
    Type: Application
    Filed: June 1, 2001
    Publication date: January 22, 2004
    Inventors: Patrick B. Gilliland, Scott C. Erickson, Theodore E. Washburn, Berlin Ha, Sterling S. Rooke
  • Parallel MSD arithmetic using an opto-electronic shared content-addressable memory processor
    Patent number: 5333117
    Abstract: An opto-electronic shared content-addressable memory processor is used to perform parallel modified signed-digit (MSD) arithmetic operations. The MSD arithmetic operation (addition or subtraction of two N-bit numbers) is decomposed into a matrix-matrix multiplication followed by a combination of a threshold and logic operations.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: July 26, 1994
    Assignee: NEC Research Institute, Inc.
    Inventors: Berlin Ha, Yao Li