Variable focusing in ultrasound imaging using non-uniform sampli

Details Variable focusing in ultrasound imaging using non-uniform sampli Variable focusing in ultrasound imaging using non-uniform sampli

1985-10-31

1987-06-02

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73626, G01N 2904

Patent

active

046693149

ABSTRACT:
Variable focusing in a phased array sector scanner is provided by selectively delaying the operation of a plurality of analog to digital converters thereby skewing sampled data. The skewed sampled data is then stored in a digital memory, and further focusing of the data is realized by selectively delaying the readout of data from the memories.

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patent: 4240295 (1980-12-01), Uranishi
patent: 4448201 (1984-05-01), Matsumoto

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