Beam forming method and apparatus therefor in ultrasonic imaging

Details Beam forming method and apparatus therefor in ultrasonic imaging Beam forming method and apparatus therefor in ultrasonic imaging

1990-03-29

1991-11-05

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Acoustic image conversion

367901, 367105, 73626, G03B 4206

Patent

active

050635417

ABSTRACT:
A beam former method and an apparatus therefor in an ultrasonic imaging system, in which switching of delay elements is performed by means of delay switches in a section in which no ultrasonic wave transmission/reception is performed and switching noise generated in this section is stored as a noise signal into a memory. The stored noise signal is subtracted from a reception signal which is obtained through ultrasonic wave transmission/reception and which contains switching noise superimposed thereon to thereby obtain a reception signal from which the noise has been eliminated.

REFERENCES:
patent: 4218768 (1980-08-01), Hassler
patent: 4392379 (1983-07-01), Yamaguchi

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