Patent ID: 8403849

Claim:
An ultrasound diagnostic apparatus comprising: a plurality of ultrasound transducers; transmission and reception signal lines configured to send transmission and reception signals for transmitting and receiving ultrasound to the plurality of ultrasound transducers; signal determining portions that are provided adjacent to the plurality of ultrasound transducers and are configured to determine a selection signal for selecting an ultrasound transducer to be driven or a readout signal for reading out the selection signal, the selection signal being sent out in synchronization with a transmission signal for forming the transmission and reception signal, and electrically couple the ultrasound transducer to be driven with the transmission and reception signal line in accordance with a result of the determination; and direct current blocking/clipping circuits that are provided in the signal determining portions, configured to block a direct current bias component superimposed on the transmission and reception signal and sent via the transmission and reception signal line, and clip a waveform, wherein the transmission and reception signal line is configured to send the transmission and reception signal with the selection signal or the readout signal, and wherein the direct current blocking/clipping circuit is configured to separate and extract the selection signal or the readout signal superimposed at a position before a signal waveform of the transmission signal which is transmitted through the transmission and reception signal line.