发明名称 |
LARGE-AREA ULTRASOUND CONTACT IMAGING |
摘要 |
An embodiment is a method and apparatus for ultrasonic contact imaging. A thin-film transistor (TFT) array is deposited on a substrate. A receiver having a plurality of receiver elements is deposited on the TFT array to receive a received signal. A transmitter adjacent to the receiver generates a transmit signal at an ultrasonic frequency. The transmit signal is reflected from a surface to produce a reflected signal. The received signal is a superposition of the transmit signal and the reflected signal as result of interference. The received signal is representative of differences in acoustic impedances across the surface.
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申请公布号 |
US2012147698(A1) |
申请公布日期 |
2012.06.14 |
申请号 |
US20100965793 |
申请日期 |
2010.12.10 |
申请人 |
WONG SERENA HAN YING;LU JENG PING;APTE RAJ B.;PALO ALTO RESEARCH CENTER INCORPORATED |
发明人 |
WONG SERENA HAN YING;LU JENG PING;APTE RAJ B. |
分类号 |
G03B42/06;G01S15/89 |
主分类号 |
G03B42/06 |
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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