| 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. | ||
| 申请公布号 | US9259961(B2) | 申请公布日期 | 2016.02.16 |
| 申请号 | US201012965793 | 申请日期 | 2010.12.10 |
| 申请人 | PALO ALTO RESEARCH CENTER INCORPORATED | 发明人 | Wong Serena Han Ying;Lu Jeng Ping;Apte Raj B. |
| 分类号 | G01S15/00;A61B8/00;B60B1/02;G06K9/00;G01S7/56;A61B8/08;A61B5/117 | 主分类号 | G01S15/00 |
| 代理机构 | Blakely Sokoloff Taylor & Zafman LLP | 代理人 | Blakely Sokoloff Taylor & Zafman LLP |
| 主权项 | 1. An apparatus comprising: a thin-film transistor (TFT) array deposited on a substrate; a receiver having a plurality of receiver elements deposited on the TFT array to receive a received signal; a transmitter adjacent to the receiver to generate a transmit signal at an ultrasonic frequency, the transmit signal being reflected from a surface to produce a reflected signal; and a contact layer deposited on the transmitter having the surface and a thickness such that the received signal is a superposition of the transmit signal and the reflected signal as result of interference, the received signal representative of differences in acoustic impedances across the surface. | ||
| 地址 | Palo Alto CA US | ||