发明名称 |
ULTRASONIC IMAGING DEVICE |
摘要 |
The waveform of an ultrasonic wave transmitted by a capacitive micro-machined ultrasonic transducer is controlled so as to improve transmitted sound pressure. The asymmetrical positive and negative waveform of the transmitted ultrasonic wave is made variable according to a voltage value. |
申请公布号 |
EP2213239(A1) |
申请公布日期 |
2010.08.04 |
申请号 |
EP20080849684 |
申请日期 |
2008.11.14 |
申请人 |
HITACHI LTD.;HITACHI MEDICAL CORPORATION |
发明人 |
TANAKA, HIROKI |
分类号 |
B06B1/02;G01S7/52;G01S15/89 |
主分类号 |
B06B1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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