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US 5,666,955 AGranted
Ultrasonic diagnostic apparatus having frame rate higher than TV frame rate
AssigneeHitachi Medical Corporation
InventorsShinichi Kondo, Akira Sasaki, Hiroshi Kanda, Tsuyoshi Mitake, Kazutaka Okada
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Abstract
An ultrasonic diagnostic apparatus for displaying a subject moving at high speed, in slow motion. The apparatus has a circuit for picking up an ultrasonic image signal at a frame rate higher than a display frame rate, a circuit for writing the picked-up image signal at a frame rate higher than the display frame rate, a circuit for reading the image signal from the memory at the display frame rate, and a device for displaying the read image signal.
Claims2
An ultrasonic diagnostic apparatus comprising:
- an ultrasonic beam transmission/reception circuit for transmitting a single ultrasonic beam and receiving a plurality of ultrasonic beams;
- a phase adjusting circuit for adjusting the phases of said plurality of ultrasonic beams;
- storage means for sequentially storing a plurality of phase adjusted beam outputs from said phase adjusting circuit;
- means for reading an image signal from said storage means at a display frame rate of display means;
- said display means for displaying said read image signal;
- means for generating an ultrasonic image synchronizing frame rate signal at a frame rate higher than the display frame rate of said display means;
- means for controlling said ultrasonic beam transmission/reception circuit and said phase adjusting circuit in accordance with said ultrasonic image synchronizing frame rate signal;
- and
- means for controlling the image signal write operation for said storage means in accordance with said ultrasonic image synchronizing frame rate signal.
6 more elements
Dependencies are inferred from the claim text.