Ultrasonic imaging system
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United States of America Patent
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Sep 14, 1999
Grant Date -
N/A
app pub date -
Jul 21, 1997
filing date -
Jul 21, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An ultrasonic imaging system for imaging an object. The system includes a mechanism for designating an ultrasonic probe swiveling angle threshold beyond which the ultrasonic probe does not adequately image the scanned object, and an echo amplitude correction apparatus for correcting the amplitude of a received echo by normalizing such amplitude to the value of a previously recorded echo of higher amplitude. Furthermore, the system includes a mechanism for monitoring acoustic coupling, which includes a low frequency noise level selection apparatus for manually selecting the power at which a low frequency reference noise is generated by a vibrator, and a low frequency noise receiving crystal located in the probe holder of the ultrasonic probe, for receiving the low frequency reference noise signal. In addition, the system includes a probe location monitoring apparatus, including two mobile non-directional transceivers in the form of an air acoustic dipole, for determining ultrasonic probe location by triangulation; a mechanism for designating the displacement between the transceivers; and a mechanism for designating the radius of curvature of the object being scanned.
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