Ultrasonic diagnostic apparatus
First Claim
1. An ultrasonic diagnostic apparatus comprising:
- a transmission circuit configured to repeatedly transmit an ultrasonic pulse through an ultrasonic probe;
a reception circuit configured to receive, as a reception signal, a reflected wave corresponding to the ultrasonic pulse received through the ultrasonic probe;
a data processing circuit configured to execute data processing for generating an ultrasonic image based on the reception signal;
an image generating circuit configured to generate the ultrasonic image based on the reception signal processed by the data processing circuit;
a switching power supply circuit configured to generate a drive voltage for at least one of the transmission circuit, the reception circuit, the data processing circuit, and the image generating circuit; and
a control circuit configured tocontrol the transmission circuit to repeatedly transmit the ultrasonic pulse, andcontrol intervals of power supply clock signals, each indicating a timing of a switching operation of the switching power supply circuit, such that time differences between falls of transmission or reception clock signals, each indicating a transmission or reception timing of the ultrasonic pulse, and rises of corresponding power supply clock signals become constant and are not zero.
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Accused Products
Abstract
An ultrasonic diagnostic apparatus according to a present embodiment includes a transmission circuit, a reception circuit, a data processing circuit, an image generating circuit, a switching power supply circuit, and a control circuit. The switching power supply circuit is configured to generate a drive voltage for at least one of the transmission circuit, the reception circuit, the data processing circuit, and the image generating circuit. The control circuit is configured to control the transmission circuit to repeatedly transmit an ultrasonic pulse, and control a timing of a switching operation of the switching power supply circuit to synchronize the timing with a transmission timing or a reception timing of the ultrasonic pulse.
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Citations
16 Claims
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1. An ultrasonic diagnostic apparatus comprising:
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a transmission circuit configured to repeatedly transmit an ultrasonic pulse through an ultrasonic probe; a reception circuit configured to receive, as a reception signal, a reflected wave corresponding to the ultrasonic pulse received through the ultrasonic probe; a data processing circuit configured to execute data processing for generating an ultrasonic image based on the reception signal; an image generating circuit configured to generate the ultrasonic image based on the reception signal processed by the data processing circuit; a switching power supply circuit configured to generate a drive voltage for at least one of the transmission circuit, the reception circuit, the data processing circuit, and the image generating circuit; and a control circuit configured to control the transmission circuit to repeatedly transmit the ultrasonic pulse, and control intervals of power supply clock signals, each indicating a timing of a switching operation of the switching power supply circuit, such that time differences between falls of transmission or reception clock signals, each indicating a transmission or reception timing of the ultrasonic pulse, and rises of corresponding power supply clock signals become constant and are not zero. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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repeatedly transmitting, by a transmission circuit, an ultrasonic pulse through an ultrasonic probe; receiving, by a reception circuit, as a reception signal, a reflected wave corresponding to the ultrasonic pulse received through the ultrasonic probe; executing, by a data processing circuit, data processing for generating an ultrasonic image based on the reception signal; generating, by an image generating circuit, the ultrasonic image based on the reception signal processed by the data processing circuit; generating, by a switching power supply circuit, a drive voltage for at least one of the transmission circuit, the reception circuit, the data processing circuit, and the image generating circuit; controlling, by control circuit, the transmission circuit to repeatedly transmit the ultrasonic pulse, and controlling, by the control circuit, intervals of power supply clock signals, each indicating a timing of a switching operation of the switching power supply circuit, such that time differences between falls of transmission or reception clock signals, each indicating a transmission or reception timing of the ultrasonic pulse, and rises of corresponding power supply clock signals become constant and are not zero.
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Specification