Ultrasonic imaging apparatus

Details Ultrasonic imaging apparatus Ultrasonic imaging apparatus

1977-02-24

1978-05-02

Queisser, Richard C.

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

040868184

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.

REFERENCES:
patent: 3453871 (1969-07-01), Krautkramer
G. Baum, Aids in Ultrasonic Diagnosis, J.A.S.A., Dec. 1970, vol. 48, No. 6, Pt. 2, pp. 1407-1412.
J. M. Reid, Evaluation of Intensity-Modulated Recording for Ultrasonic Diagnosis, J.A.S.A., Nov. 1968, vol. 44, No. 5, pp. 1319-1323.

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