Patents Assigned to Stanford Photonics, Inc.
  • Patent number: 6638787
    Abstract: A fast frame-rate imaging device is produced by a attaching a fiberoptic block to an otherwise ordinary and inexpensive CCD. A part of the fiberoptic block is occluded so as to darken a majority of the active imaging photocells. The CCD imaging device is operated at near its maximum horizontal and vertical clock rates, but multiple image frames are defined within the one previous active photocell array field. The added dark areas in the optical field protect the recent frames still in transit within the active array area from being double exposed and thus corrupted. The serial output of the thus-modified CCD imaging device is reinterpreted to include more frames than originally at a multiple equal to the original array dimension divided by the new array dimension (m·n/m′·n′). Such a modified CCD array uses only one-fourth of the original active area, and is operable at a multiple of the original frame rate.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: October 28, 2003
    Assignees: Pulnix America, Inc., Stanford Photonics, Inc.
    Inventors: Michael Paul Buchin, Toshikazu Hori