公开(公告)号：US20130235698A1

公开(公告)日：2013-09-12

申请号：US13867946

申请日：2013-04-22

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Serena Han Ying Wong ,  Jeng Ping Lu ,  Raj B. Apte

IPC: G01S15/89

CPC classification number: G01S15/89 ,  B06B1/02 ,  G01S15/8915 ,  G01S15/8977

Abstract: An embodiment is a method and apparatus for coherent ultrasonic imaging. A receiver array has a plurality of receiver elements on a substrate to detect in-phase and quadrature components of a received signal corresponding to a transmit signal. Each of the receiver elements includes a receiver transducer and a thin-film transistor (TFT) receiver circuit. The TFT receiver circuit includes a quadrature detector having a mixer to mix a received signal with a reference signal in a composite bias signal that is distributed across the plurality of receiver elements. A transmitter is acoustically coupled to the plurality of receiver elements to generate the transmit signal through an imaging medium.

Abstract translation: 一个实施例是用于相干超声成像的方法和装置。 接收器阵列在衬底上具有多个接收器元件，以检测对应于发射信号的接收信号的同相和正交分量。 每个接收器元件包括接收器换能器和薄膜晶体管（TFT）接收器电路。 TFT接收器电路包括正交检测器，该正交检测器具有混合器，以将接收的信号与分布在多个接收器元件上的复合偏置信号中的参考信号进行混合。 发射机声耦合到多个接收机元件以通过成像介质产生发射信号。

公开(公告)号：US08733173B2

公开(公告)日：2014-05-27

申请号：US13867946

申请日：2013-04-22

Applicant: Palo Alto Research Center Incorporated

Inventor： Serena Han Ying Wong ,  Jeng Ping Lu ,  Raj B. Apte

IPC: G01N29/24

CPC classification number: G01S15/89 ,  B06B1/02 ,  G01S15/8915 ,  G01S15/8977

Abstract: An embodiment is a method and apparatus for coherent ultrasonic imaging. A receiver array has a plurality of receiver elements on a substrate to detect in-phase and quadrature components of a received signal corresponding to a transmit signal. Each of the receiver elements includes a receiver transducer and a thin-film transistor (TFT) receiver circuit. The TFT receiver circuit includes a quadrature detector having a mixer to mix a received signal with a reference signal in a composite bias signal that is distributed across the plurality of receiver elements. A transmitter is acoustically coupled to the plurality of receiver elements to generate the transmit signal through an imaging medium.

Abstract translation: 一个实施例是用于相干超声成像的方法和装置。 接收器阵列在衬底上具有多个接收器元件，以检测对应于发射信号的接收信号的同相和正交分量。 每个接收器元件包括接收器换能器和薄膜晶体管（TFT）接收器电路。 TFT接收器电路包括正交检测器，该正交检测器具有混合器，以将接收的信号与分布在多个接收器元件上的复合偏置信号中的参考信号进行混合。 发射机声耦合到多个接收机元件以通过成像介质产生发射信号。