Ultrasound imaging system employing operator controlled filter f

Details Ultrasound imaging system employing operator controlled filter f Ultrasound imaging system employing operator controlled filter f

1982-10-27

1984-09-25

Kreitman, Stephen A.

Measuring and testing

Speed, velocity, or acceleration

Magnetic speed measuring or mechanical speed measuring with...

73620, 73629, G01N 2900

Patent

active

044729723

ABSTRACT:
The amplitudes of electrical signals generated by a transducer in an ultrasound scanning system are controlled by applying the electrical signals to an electrical filter whose frequency pass characteristics can be varied. As the ampltude and frequency of the generated electrical signals decrease due to passage through tissue, the low frequency of the filter is reduced. The control of the filter can be automatically implemented or can be manually implemented by the system operator.

REFERENCES:
patent: 4016750 (1977-04-01), Green

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