| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ultrasonic diagnosis apparatus capable of reducing an unnecessary signal component included in a reception signal, and performing unnecessary signal component reduction processing which is faithful to the disturbance degree of phases, especially, in an element arranging direction or an element reception signal line direction. <P>SOLUTION: A factor computing unit 30 extracts a plurality of code bits from a plurality of element reception signals having been subjected to delay processing, and obtains the number (frequency) of polarity reversal in a signal line direction. Specifically, it is determined whether or not the contents of code bits are coincident between adjacent signals. A factor is computed based on the number of polarity reversal. A multiplier 32 multiplies the factor by the reception signal having been subjected to wave detection. When phases are disturbed in the signal line direction, the number of the polarity reversal is increased and the factor is reduced, thereby a signal reduction effect is increased. <P>COPYRIGHT: (C)2012,JPO&INPIT |
