公开(公告)号：US20170167904A1

公开(公告)日：2017-06-15

申请号：US14964172

申请日：2015-12-09

Applicant: Texas Instruments Incorporated

Inventor： AMARDEEP SATHYANARAYANA ,  ANAND DABAK ,  DAVID PATRICK MAGEE

IPC: G01F1/66

CPC classification number: G01F1/66 ,  G01F1/662 ,  G01F1/667

Abstract: A method of ultrasound flow metering includes applying a first and second pulse train to an ultrasound transducer pair (T1, T2) positioned for coupling ultrasonic waves therebetween. Responsive to the first pulse train applied to T1, T1 transmits an ultrasonic wave received as received ultrasonic wave (R12) by T2 after propagating through fluid in a pipe. Responsive to the second pulse train applied to T2, T2 transmits an ultrasonic wave received as received ultrasonic wave by (R21) T1 after propagating through the fluid. During the pulse trains, R12 and R21 build up in amplitude to provide excitation portions. The pulse trains are terminated, so that R12 and R21 decay as a damped free oscillation. Windowing is applied to R12 and R21 to generate windowed portions. A signal delay between t12 and t21 (ΔTOF) is calculated using only windowed portions, and a fluid flow is calculated from the ΔTOF.

公开(公告)号：US20150262569A1

公开(公告)日：2015-09-17

申请号：US14203689

申请日：2014-03-11

Applicant: Texas Instruments Incorporated

Inventor： ANAND DABAK ,  CLIVE BITTLESTONE

IPC: G10K11/18

CPC classification number: G01R31/00 ,  G01S7/5205 ,  G06F11/00 ,  G06F11/27 ,  H04B11/00

Abstract: A transceiver device combination includes a first ultrasound transducer and a processor chip including a central processing unit (CPU). A memory is coupled to the CPU including stored ultrasound communications software for rendering the processor chip a target device for an ultrasound probe driven via a host computing device having a second ultrasound transducer for together performing ultrasonic debugging of the processor chip. The transceiver device combination includes (i) a transmit path including an ultrasound driver having an input driven by an output of the CPU, where an output of the ultrasound driver is coupled to drive an input of the first ultrasound transducer to transmit ultrasound signals and (ii) a receive path including analog signal processing circuitry that couples an output of the first ultrasound transducer responsive to received ultrasound signals from the ultrasound probe to an input of the CPU.

Abstract translation: 收发器装置组合包括第一超声换能器和包括中央处理单元（CPU）的处理器芯片。 存储器耦合到CPU，包括存储的超声波通信软件，用于使处理器芯片用于经由具有第二超声波换能器的主计算装置驱动的超声波探头的目标装置，以一起执行处理器芯片的超声波调试。 收发器设备组合包括（i）包括具有由CPU的输出驱动的输入的超声驱动器的发射路径，其中超声驱动器的输出被耦合以驱动第一超声换能器的输入以发射超声信号和（ ii）包括模拟信号处理电路的接收路径，所述模拟信号处理电路将所述第一超声换能器的输出响应所接收的超声信号从所述超声波探头耦合到所述CPU的输入。

公开(公告)号：US20200209984A1

公开(公告)日：2020-07-02

申请号：US16235335

申请日：2018-12-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： TING LI ,  RAHMI HEZAR ,  SRINATH MATHUR RAMASWAMY ,  ANAND DABAK ,  BAHER HAROUN

IPC: G06F3/03 ,  G01S17/48 ,  G01S7/486 ,  G06F3/042 ,  G06F3/038 ,  G06F3/041 ,  G06F3/0346

Abstract: An optical position sensing system is disclosed. The system includes a substrate having a surface. A plurality of photodetectors are at multiple locations across the surface, each of the plurality of photodetectors providing detector pulse signals in response to receiving the light. The system further includes a processor that determines a phase shift between the transmitted light pulse signals and the respective detector pulse signals and applies a multi-path resolution operation to distinguish between the detector pulse signals representing the transmitted light pulse signals and those representing reflected light pulse signals. The processor also calculates a distance of a transmitting device from each of the photodetectors based on the determined phase shift and the multi-path resolution operation and calculates a multi-dimensional position of the transmitting device relative to the substrate based on the calculated distances.