Measuring and testing – Vibration – By mechanical waves
Patent
1984-11-08
1986-09-16
Birmiel, Howard A.
Measuring and testing
Vibration
By mechanical waves
73628, 128660, G01N 2900
Patent
active
046114947
ABSTRACT:
In a transmitter section of ultrasonic imaging apparatus, a digital delay circuit is provided. The digital delay circuit includes a clock pulse selector for selecting one phase-shifted clock signal from the plurality of phase-shifted reference signal trains based upon delay time information of the control data signals of the timing control device, a clock counter for counting a pulse number of one phase-shifted clock signal derived from the clock pulse selector based upon the delay time information of the control data signals, thereby obtaining a digitally-delayed phase-shifted clock signal, and a wave number counter for counting a wave number of said digitally-delayed clock signal derived from said clock counter based upon wave number information of the control data signal, thereby finally obtaining a digitally-delayed phase-shifted signal having the desired wave number for the exciting phase.
REFERENCES:
patent: 4234940 (1980-11-01), Iinuma
patent: 4285011 (1981-08-01), Sato
patent: 4372323 (1983-02-01), Takemura et al.
patent: 4387597 (1983-06-01), Brandestini
patent: 4392379 (1983-07-01), Yamaguchi
patent: 4434658 (1984-03-01), Miyazaki et al.
patent: 4470305 (1984-09-01), O'Donnell
patent: 4472973 (1984-09-01), Sugai et al.
Birmiel Howard A.
Kabushiki Kaisha Toshiba
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