公开(公告)号：US20160179121A1

公开(公告)日：2016-06-23

申请号：US14573438

申请日：2014-12-17

Applicant: STMicroelectronics S.r.l.

Inventor： Davide Ugo Ghisu ,  Sandro Rossi ,  Dario Bianchi

IPC: G05F3/02 ,  H03K19/0185

CPC classification number: B06B1/0215 ,  A61B8/4483 ,  G05F3/02 ,  H03K3/356182 ,  H03K17/0822 ,  H03K17/687 ,  H03K19/018521 ,  H03K2217/0063

Abstract: A transmission channel transmits high-voltage pulses and receives echos of the high-voltage pulses. The transmission channel includes a buffer with anti-memory circuitry to couple drains of the buffer transistors to voltage reference terminals during a clamping phase.

Abstract translation: 传输通道传输高电压脉冲并接收高电压脉冲的回波。 传输通道包括具有防存储器电路的缓冲器，以在夹持阶段将缓冲晶体管的漏极耦合到电压参考端子。

公开(公告)号：US09323270B1

公开(公告)日：2016-04-26

申请号：US14553749

申请日：2014-11-25

Applicant: STMicroelectronics S.r.l.

Inventor： Sandro Rossi ,  Davide Ugo Ghisu ,  Fabio Quaglia ,  Antonio Davide Leone

IPC: G05F3/02

CPC classification number: G05F3/02 ,  B06B1/0215 ,  H03K4/94 ,  H03K17/162

Abstract: A transmission channel transmits high-voltage pulses and receives echos of the high-voltage pulses. The transmission channel includes a current generator circuit, which generates current-integrator drive currents, a receiver, which amplifies transducer-echo signals, and control circuitry. The control circuitry generates one or more control signals to control generation of current-integrator drive currents by the current generator circuit during transducer-driving periods and reception of transducer-echo signals by the receiver during echo-reception periods. A current integrator integrates current-integrator drive currents generated by current generator circuit to generate transducer drive signals.

Abstract translation: 传输通道传输高电压脉冲并接收高电压脉冲的回波。 传输通道包括产生电流积分器驱动电流的电流发生器电路，放大换能器回波信号的接收器和控制电路。 控制电路产生一个或多个控制信号，以在换能器驱动期间由电流发生器电路控制电流积分器驱动电流的产生，并且在回波接收周期期间由接收器接收换能器 - 回波信号。 电流积分器集成了由电流发生器电路产生的电流积分器驱动电流以产生换能器驱动信号。

公开(公告)号：US20160036583A1

公开(公告)日：2016-02-04

申请号：US14661937

申请日：2015-03-18

Applicant: STMicroelectronics S.r.l.

Inventor： Juri Giovannone ,  Valeria Bottarel ,  Marco Terenzi ,  Sandro Rossi

IPC: H04L7/00

CPC classification number: H04L7/0045 ,  H03K5/135 ,  H03K5/14 ,  H03L7/0814 ,  H04L7/0037

Abstract: The operation of a circuit exhibiting a delay that is subject to a time spread as a function of process, voltage, and temperature variations is synchronized with a sync signal by applying to the sync signal a digital delay, which can add to the delay that is subject to time spread.The digital delay is generated via cascaded delay elements having respective delay values and by controlling the number of cascaded delay elements in the circuit.

Abstract translation: 表现出作为过程，电压和温度变化的函数的时间扩展的延迟的电路的操作与同步信号同步，该同步信号通过向同步信号施加数字延迟，这可以增加延迟 受时间限制。 通过具有各自的延迟值的级联延迟元件和通过控制电路中的级联延迟元件的数量来产生数字延迟。