Patents Assigned to Camex
  • Patent number: 5361139
    Abstract: The present invention relates to a method for producing multitone image data from data representative of an original image and, in particular, for producing multitone image data with a set of N output darkness levels U greater than 2 from original darkness values V.sub.o representative of an original image.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: November 1, 1994
    Assignee: Camex, Inc.
    Inventor: Michael Speciner
  • Patent number: 5303069
    Abstract: The present invention relates to a method for producing multitone image data from data representative of an original image and, in particular, for producing multitone image data with a set of N output darkness levels U greater than 2 from original darkness values V.sub.o representative of an original image.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: April 12, 1994
    Assignee: Camex, Inc.
    Inventor: Michael Speciner
  • Patent number: 4955002
    Abstract: A vibratory, time variant, pseudorandom sonar system includes a computer controlled pseudorandom digital sweep frequency source, a digital/analog converter for changing the digital output of the source to an analog output and a power amplifier for amplifying the analog output to drive a vibrator or other suitable transducer for injecting corresponding sound waves into a body of water for target detection. A memory is provided for storing the source's digitized output.A target reflects the sound waves for detection by 3 arbitrary non-colinear hydrophones which outputs a plurality of analog signals corresponding to the reflected sound waves to a plurality of channels. Each channel includes a preamplifier and an analog/digital converter for digitizing the analog electrical signals for storage in the memory. A computer controlled timer determines the time lapse between the injection of the source signal and detection of the reflected source signal by each hydrophone of the hydrophone array, for storage in memory.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: September 4, 1990
    Assignee: Camex
    Inventor: Donald R. Campbell