Patents Assigned to SmithKline Instruments, Incorporated
  • Ultrasonic imaging apparatus
    Patent number: 4086818
    Abstract: An ultrasonic imaging apparatus is disclosed having a display selectably interchangeable between a shades of gray image presentation and an edge enhanced image presentation to facilitate distance measurements of the image on the display screen. A first filter network processes echo responsive electrical signals for preserving echo amplitude information in a shades of gray image presentation and a second filter network processes the echo responsive electric signals for enhancing only the leading edge of the electrical signals.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: May 2, 1978
    Assignee: SmithKline Instruments, Incorporated
    Inventor: Charles A. Reynolds