Ultrasonic scanning pulse-generating apparatus

Details Ultrasonic scanning pulse-generating apparatus Ultrasonic scanning pulse-generating apparatus

1989-01-19

1990-01-09

Jaworski, Francis

Surgery

Truss

Pad

73620, 12866009, A61B 800

Patent

active

048921033

ABSTRACT:
An ultrasonic scanning pulse-generating apparatus includes a rotary encoder for outputting a pulse every time a motor, driving an ultrasonic transducer, rotates through a predetermined angle, and a pulse cycle-measuring circuit for measuring the one-cycle period of pulses output from the rotary encoder. An address pulse output circuit is provided for outputting a pulse during each of the periods defined by dividing the one-cycle period by a predetermined number m. The address pulse output circuit is connected to a scanning pulse-generator including an address-forming circuit for constructing address data from the address pulse obtained by the address pulse output circuit, and a memory storing scanning pulse data and addressed by the address data of the address-forming circuit, to output a scanning pulse.

REFERENCES:
patent: 4047520 (1977-09-01), Soldner et al.
patent: 4058118 (1977-11-01), Stupay et al.
patent: 4141347 (1979-02-01), Green et al.
patent: 4316390 (1982-02-01), Kretz
patent: 4317370 (1982-03-01), Glenn
patent: 4413521 (1983-11-01), Van Kemenade

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