Method of and apparatus for the examination of objects by ultras

Details Method of and apparatus for the examination of objects by ultras Method of and apparatus for the examination of objects by ultras

1991-05-31

1993-02-09

Jaworski, Francis

Surgery

Truss

Pad

A61B 800

Patent

active

051846233

ABSTRACT:
A method of examining objects by ultrasonic echography, comprising a step for transmitting ultrasonic signals to the object to be scanned, and a step for receiving and processing echographic signals returend to the transducer elements by the object being examined, including focusing of the signals by application of an appropriate delay rule, and a revelant apparatus. The receiving and processing step includes a step for two-by-two correlation of the n signals available after focusing in the receiving mode in order to determine (n-1 ) focusing delay correction values, followed by a step for correcting, as a function of the (n-1) values, the focusing delays during the next activation and, in accordance with the invention, a step for correcting, as a function of the (n-1 ) values, focusing delays in the receiving mode during the same activation.

REFERENCES:
patent: 4471785 (1984-09-01), Wilson et al.
patent: 4817614 (1989-04-01), Hassler et al.

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