Ultrasonic echography apparatus utilizing a digital device for f

Details Ultrasonic echography apparatus utilizing a digital device for f Ultrasonic echography apparatus utilizing a digital device for f

1990-09-28

1992-02-18

Jaworski, Francis

Surgery

Truss

Pad

12866101, 73625, A61B 800

Patent

active

050884964

ABSTRACT:
An ultrasonic echography apparatus, comprising a device for forming M channels which comprises, for each channel an analog-to-digital converter a delay line for introducing a delay with a step of 1/f.sub.e, and a circuit for interpolation and selection from N samples for each input sample, which circuit is formed by:

REFERENCES:
patent: 4543829 (1985-10-01), Lerch
patent: 4700573 (1987-10-01), Savord
patent: 4779242 (1988-10-01), Lannuzel
patent: 4787392 (1988-11-01), Saugeon
patent: 4920521 (1990-04-01), Yoshie
patent: 4974211 (1990-11-01), Corl
R. G. Pridham et al., "A Novel Approach to Digital Beamforming", Journal Acoust. Soc. Am., vol. 63, No. 2, Feb. 1978, pp. 425-434.

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