Communications – electrical: acoustic wave systems and devices – Acoustic image conversion
Patent
1991-12-06
1992-12-15
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Acoustic image conversion
367 11, 367103, 367105, 36441325, 12866101, 73626, G03B 4206
Patent
active
051723433
ABSTRACT:
A PASS ultrasonic system performs a scan in which phase errors due to aberrations in the sound media are corrected prior to the acquisition of each beam. Phase errors are measured by cross correlating each of a set of reference beams with the desired beam to produce beam forming errors as a function of beam angle. This function is Fourier transformed to produce phase corrections that are employed by the ultrasonic system to offset the phase errors.
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General Electric Company
Pihulic Daniel T.
Snyder Marvin
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