Ultrasonic diagnosis apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 1, 1982
Grant Date -
N/A
app pub date -
Jul 3, 1980
filing date -
Jul 11, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ultrasonic diagnosis apparatus is provided with a plurality of phased array transducer elements arranged in a row. The number of simultaneously driven transducer elements is changed in response to a rate pulse to increase the ultrasonic scanning line density without increasing the number of the transducer elements, while the position of the focal point is adjusted to maintain the minimum width position of the ultrasonic beam provided by the group of the simultaneously driven transducer elements substantially constant irrespective of the change of the number of the simultaneously driven transducer elements by controlling the phase of transmitted and received ultrasonic waves by means of delay elements.
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