Patent ID: 9110155
Filing Date: 2015-08-18
Classification: G01N,G01S

Abstract:
1. An ultrasonic apparatus which acquires biological information by receiving an ultrasonic wave from a specimen, said apparatus comprising: a plurality of transducers that receive ultrasonic waves and convert them into received electrical signals, respectively; an adaptive signal processing unit that generates a first intermediate signal with the use of a plurality of received electrical signals obtained from said plurality of transducers and a weighting coefficient by calculating a correlation matrix of the plurality of received electrical signals, extracting a plurality of sub-matrices from said correlation matrix, calculating a sub-correlation matrix by averaging said plurality of sub-matrices, and determining said weighting coefficient from said sub-correlation matrix; a fixed signal processing unit that generates a second intermediate signal with the use of said plurality of received electrical signals and a predetermined weighting coefficient; and a unit that generates an output signal to be used for acquisition of said biological information by comparing said first intermediate signal and said second intermediate signal therebetween.