Method and means for generating time gain compensation control s

Details Method and means for generating time gain compensation control s Method and means for generating time gain compensation control s

1980-11-03

1982-11-02

Gill, James J.

Measuring and testing

Vibration

By mechanical waves

73900, G01N 2904

Patent

active

043567312

ABSTRACT:
Time gain compensation is provided in an ultrasonic scanner by storing a digital code in memory representing the desired signal gain for intervals of time during the reflected wave. Gain compensation due to transducer parameter can be provided in digital form in a separate memory, and the outputs of the two memories are combined and applied to a digital to analog converter. The resulting analog control signal is preferably filtered and then applied as a control signal to a gain control amplifier.

REFERENCES:
patent: 3033029 (1962-05-01), Weighart
patent: 3367173 (1968-02-01), Uphoff
patent: 4102205 (1978-07-01), Pies et al.

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