| 摘要 |
<p>In an ultrasonic diagnosis apparatus, the circuitry is divided into two parts (101,102), which are connected with a cable (105). The first unit (101) includes a trigger signal generation circuit (114) and an ultrasonic wave transmitting and receiving circuit (111) including a probe (110) for transmitting ultrasonic waves in response to the trigger signal and receiving reflected ultrasonic waves to generate a reception signal. The cable (105) transmits the reception signal and the trigger signal. The second unit (102) includes a clock signal generation circuit (122) for generating a clock signal in response to the trigger signal transmitted through the cable (105), and a/d converter (121) for a/d converting the reception signal in response to the clock signal. Means (235) for detecting a frequency error between the clock signal and a reference frequency signal and means for compensating the ultrasonic diagnostic data may be further provided. <IMAGE></p> |
