公开(公告)号：US07559899B2

公开(公告)日：2009-07-14

申请号：US11402476

申请日：2006-04-12

Applicant: Thomas Ying-Ching Lo ,  Karthik H. Katingari

Inventor： Thomas Ying-Ching Lo ,  Karthik H. Katingari

IPC: A61B5/02

CPC classification number: A61B5/02444 ,  A61B5/0002 ,  A61B5/02438 ,  A61B5/411 ,  A61B5/681 ,  A61B8/02 ,  A61B8/4236 ,  A61B8/4472 ,  A61B8/4483 ,  A61B8/56 ,  A61B2560/0209

Abstract: A heart rate monitor implements power saving algorithms while monitoring a subject's heart rate. The monitor continuously monitors a subject during an initial period to determine an initial heart rate. After the initial heart rate is acquired, power may not be provided for portions of the monitor until a heart beat is expected to occur. At some point before the expected heart beat occurs, power is returned to the components which have not received power. The expected heart beat is then detected, and power to selected portions of the monitor is terminated again until another expected heart beat approaches in time. By providing power to monitor components just before an expected heart beat, the monitor may still detect the heart beat and determine the corresponding heart rate of the user. The period of time during which power is terminated for some components may be determined from the detected heart rate. The number of heart beats during which power is terminated for selected monitor components may vary.

Abstract translation: 心率监测器在监测受试者的心率的同时实现省电算法。 监视器在初始期间连续地监视被摄体以确定初始心率。 在获得初始心率之后，可能不会对监视器的部分提供功率，直到心跳发生为止。 在预期心跳发生之前的某个时刻，功率返回到尚未接收功率的组件。 然后检测预期的心跳，并且再次终止监视器的选定部分的功率，直到另一预期的心跳在时间上接近。 通过在预期的心跳之前提供监视组件的功率，监视器仍然可以检测心跳并确定用户的相应心率。 可以根据检测到的心率确定一些组件的电力终止的时间段。 对于选定的监视器组件，电源终止的心跳次数可能会有所不同。

公开(公告)号：US5738104A

公开(公告)日：1998-04-14

申请号：US554373

申请日：1995-11-08

Applicant: Thomas Ying-Ching Lo ,  Yuh Snow Tsai

Inventor： Thomas Ying-Ching Lo ,  Yuh Snow Tsai

IPC: A61B5/024 ,  A61B5/0245 ,  A61B5/04 ,  G06F17/00 ,  A61B5/0402 ,  A61B5/0404

CPC classification number: A61B5/0245 ,  A61B5/02438 ,  A61B5/6806 ,  A61B5/681 ,  A61B5/7203 ,  A61B5/7225 ,  A61B5/04017 ,  A61B5/7239

Abstract: A heart rate monitor for calculating heart rate based upon EKG signals. The monitor preferably utilizes 3 electrodes to pick up EKG signals and a differential amplifier to cancel common mode signals in the output of the electrode. An analog bandpass filter comprised of a low pass and high pass filter in series each with different rolloffs filters out low and high frequency components. The signals are digitized and digital filtering to remove power line hum and remnants of low and high frequency noise is performed. Then the EKG signals are digitally enhanced by differentiating and squaring the results of the differentiator then being averaged in a moving average computation so as to generate enhanced digital data. The enhanced digital data is then processed to learn the EKG characteristics, and a heart rate arbitrator processes the incoming signals to select out actual EKG complexes from EMG noise and other noise. The EKG isolation process is done using rules of reason and the learned characteristics of the EKG signal.

Abstract translation: 基于EKG信号计算心率的心率监测器。 监视器优选地利用3个电极来拾取EKG信号和一个差分放大器来消除电极输出中的共模信号。 一个模拟带通滤波器由低通和高通滤波器组成，每个滤波器具有不同的低通滤波器和高频分量。 信号被数字化，并且执行数字滤波以去除电力线嗡嗡声和低频和高频噪声的残余物。 然后，通过对移动平均计算中的微分器的结果进行微分和平方，然后将其平均化，以便产生增强的数字数据，从而对EKG信号进行数字增强。 然后处理增强的数字数据以了解EKG特征，并且心率仲裁器处理输入信号以从EMG噪声和其他噪声中选出实际的EKG复合体。 EKG隔离过程使用原理规则和EKG信号的学习特性完成。

公开(公告)号：US5001649A

公开(公告)日：1991-03-19

申请号：US245837

申请日：1988-09-16

Applicant: Ying-Ching Lo ,  Samuel Zambre ,  Tolentino Escorcio

Inventor： Ying-Ching Lo ,  Samuel Zambre ,  Tolentino Escorcio

IPC: A61B18/00 ,  A61B17/00 ,  A61B18/12 ,  A61F9/00 ,  A61F9/007 ,  B06B1/02 ,  G05F1/66 ,  G05F1/70

CPC classification number: B06B1/0207 ,  A61F9/00745 ,  B06B1/0253 ,  A61B18/1206 ,  A61B2017/00017 ,  A61B2017/00084 ,  B06B2201/40 ,  B06B2201/55

Abstract: There is disclosed herein a driver system for an ultrasonic probe for allowing a user to have proportional control of the power dissipated in the probe in accordance with the position of power dissipation controls operable by the user and for automatically tuning upon user request such that the driving frequency is equal to the mechanical resonant frequency of said probe and such that the reactive component of the load impedance represented by said probe is tuned out. The system uses a tunable inductor in series with the piezoelectric crystal excitation transducer in the probe which has a flux modulation coil. The bias current through this flux modulation coil is controlled by the system. It is controlled such that the inductance of the tunable inductor cancels out the capacitive reactance of the load impedance presented by the probe when the probe is being driven by a driving signal which matches the mechanical resonance frequency of the probe. The resulting overall load impedance is substantially purely resistive. The system measures the phase angle and monitors the load current. This information is used to determine the mechanical resonance frequency by sweeping through a band of driving frequencies and finding the peak load current where the slope of the load current versus frequency function is greater than a predetermined constant. After the automatic tuning to the resonant frequency, the system automatically adjusts the bias current flowing through the flux modulation coil to maintain the substantially purely resistive load impedance for changing power levels. There is also disclosed herein an analog circuit to measure the Phase angle for the load driving signal and to adjust the frequency of the driving signal for best performance. This system includes an integrator to eliminate the effect of offset errors caused by operational amplifiers.

Abstract translation: 这里公开了一种用于超声波探头的驱动器系统，用于允许用户根据用户可操作的功率耗散控制的位置来对探头中消耗的功率进行成比例的控制，并且根据用户请求自动调整，使得驾驶 频率等于所述探针的机械谐振频率，并且使得由所述探针表示的负载阻抗的无功分量被调谐。 该系统使用可调电感器与探头中的压电晶体激发传感器串联，该探头具有通量调制线圈。 通过该通量调制线圈的偏置电流由系统控制。 它被控制使得当探针由与探针的机械共振频率匹配的驱动信号驱动时，可调谐电感器的电感抵消由探头呈现的负载阻抗的容抗。 所得到的总负载阻抗基本上是纯电阻的。 该系统测量相位角并监测负载电流。 该信息用于通过扫描驱动频率带来确定负载电流对频率函数的斜率大于预定常数的峰值负载电流来确定机械谐振频率。 在自动调谐到谐振频率之后，系统自动调整流经通量调制线圈的偏置电流，以保持用于改变功率电平的基本上纯电阻的负载阻抗。 这里还公开了用于测量负载驱动信号的相位角的模拟电路，并且为了获得最佳性能来调整驱动信号的频率。 该系统包括一个积分器，以消除由运算放大器引起的偏移误差的影响。

公开(公告)号：US08121672B2

公开(公告)日：2012-02-21

申请号：US12139190

申请日：2008-06-13

Applicant: Bill Lau ,  Thomas Ying-Ching Lo

Inventor： Bill Lau ,  Thomas Ying-Ching Lo

IPC: A61B5/04

CPC classification number: A61B5/0245 ,  A61B5/02438 ,  A61B5/02444 ,  A61B5/681 ,  H01L23/60 ,  H01L2924/0002 ,  H01L2924/00

Abstract: Electro static discharge (ESD) protection is provided for electronic devices with integrated circuits, such as for example heart rate monitors. The ESD protection protects against voltage accumulation and discharge through device external parts that are connected to internal device circuitry. The ESD protection isolates the internal device circuitry and provides a low impedance path over which electro static charges and any transient voltages in the device may discharge. The integrated circuits, electrical components, and other parts protected from ESD may be connected to monitor circuitry and be externally exposed, such as sensing or measurement parts exposed outside the device. The external parts may include a sensing case back, sensing push-buttons, or other components that provide a signal to or are otherwise in communication with the internal device circuitry.

Abstract translation: 为具有集成电路的电子设备（例如心率监测器）提供静电放电（ESD）保护。 ESD保护通过连接到内部器件电路的器件外部部件防止电压累积和放电。 ESD保护隔离内部器件电路，并提供低阻抗路径，静电电荷和器件中的任何瞬态电压可以放电。 集成电路，电气元件以及其他不受ESD保护的部件可能连接到监视器电路并被外部暴露，例如暴露在设备外部的感测或测量部件。 外部部件可以包括感测壳背，感测按钮或向内部设备电路提供信号或以其他方式通信的其他组件。

公开(公告)号：US08073533B2

公开(公告)日：2011-12-06

申请号：US12873488

申请日：2010-09-01

Applicant: Chor Kuen Eddy Hui ,  Thomas Ying-Ching Lo

Inventor： Chor Kuen Eddy Hui ,  Thomas Ying-Ching Lo

IPC: A61B5/04

CPC classification number: A61B5/0002 ,  A61B5/02438 ,  A61B5/0245 ,  A61B5/681

Abstract: A heart rate monitor determines a heart rate for a primary subject by reducing noise and cross-talk from unwanted signal transmission sources. A set of pulse peaks having about the same amplitude and an amplitude greater than any other set of peaks are processed to determine a subject's heart rate, while data having an amplitude below that of the set of peaks is ignored. To retrieve enough data to determine a peak amplitude, the signal having heart rate information is sampled at a frequency higher than a normal sampling frequency. In some embodiments, if no data is received for a set time period which is in or above the range, the threshold resets to zero under an assumption that the primary subject is no longer within transmitting range.

Abstract translation: 心率监测器通过减少来自不想要的信号传输源的噪声和串扰来确定主要受试者的心率。 处理具有大约相同幅度和幅度大于任何其它峰值集合的一组脉冲峰值以确定受试者的心率，而忽略具有低于该组峰值的幅度的数据。 为了检索足够的数据以确定峰值幅度，具有高于正常采样频率的频率的具有心率信息的信号被采样。 在一些实施例中，如果在等于或高于该范围的设定时间周期内没有接收到数据，则在假设主要被摄体不在发送范围内的情况下，阈值复位为零。

公开(公告)号：US07798970B2

公开(公告)日：2010-09-21

申请号：US10990794

申请日：2004-11-17

Applicant: Thomas Ying-Ching Lo ,  Rong Jong Chang

Inventor： Thomas Ying-Ching Lo ,  Rong Jong Chang

IPC: A61B8/14

CPC classification number: A61B8/02 ,  A61B5/411 ,  A61B5/681 ,  A61B8/06 ,  A61B8/4227 ,  A61B8/4281 ,  A61B8/4472 ,  A61B8/4483 ,  G10K11/004

Abstract: An ultrasonic monitor implemented on a PCB includes a gel pad comprised of a gel layer and a membrane layer. Ultrasonic signals are transmitted between the ultrasonic monitor and a living subject through the gel pad. An air gap is formed in the PCB underneath transducer elements to provide for more efficient signal transmission. These features provide for a low power, low cost, more efficient ultrasonic monitor. The entire ultrasonic monitor may be encapsulated in plastic, a gel, or both to provide water resistant properties.

Abstract translation: 在PCB上实现的超声波监测器包括由凝胶层和膜层组成的凝胶垫。 超声波信号通过凝胶垫在超声波监测器和活体之间传播。 在传感器元件下面的PCB中形成气隙，以提供更有效的信号传输。 这些功能提供低功耗，低成本，更高效的超声波监视器。 整个超声波监测器可以封装在塑料，凝胶或两者中以提供防水性能。

公开(公告)号：US07547282B2

公开(公告)日：2009-06-16

申请号：US10758608

申请日：2004-01-14

Applicant: Thomas Ying-Ching Lo ,  Tolentino Escorcio ,  Ron Jong Chang

Inventor： Thomas Ying-Ching Lo ,  Tolentino Escorcio ,  Ron Jong Chang

IPC: A61B8/14

CPC classification number: A61B5/02438 ,  A61B5/681 ,  A61B8/02 ,  A61B8/4281 ,  A61B8/4472

Abstract: The invention provides an ultrasonic monitor for measuring pulse rate values in a living subject, including a module with at least one source of ultrasonic energy, a gel pad comprised of a polymer and from about 50 to about 95% by weight of an ultrasound conductive diluent, wherein the gel pad is positioned in direct contact between the module and the living subject; an ultrasonic energy detector and associated hardware and software for detecting, calculating and displaying a readout of the measured rate values.

Abstract translation: 本发明提供了一种超声波监测器，用于测量活体中的脉搏值，包括具有至少一个超声能量源的模块，由聚合物组成的凝胶垫和约50至约95重量％的超声导电稀释剂 ，其中所述凝胶垫定位成在所述模块和所述活体之间直接接触; 超声波能量检测器和相关联的硬件和软件，用于检测，计算和显示所测量的速率值的读数。

公开(公告)号：US20090043217A1

公开(公告)日：2009-02-12

申请号：US11835305

申请日：2007-08-07

Applicant: Chor Kuen Eddy Hui ,  Thomas Ying-Ching Lo

Inventor： Chor Kuen Eddy Hui ,  Thomas Ying-Ching Lo

IPC: A61B5/0402

CPC classification number: A61B5/0002 ,  A61B5/02438 ,  A61B5/0245 ,  A61B5/681

Abstract: A heart rate monitor determines a heart rate for a primary subject by reducing noise and cross-talk from unwanted signal transmission sources. A set of pulse peaks having about the same amplitude and an amplitude greater than any other set of peaks are processed to determine a subject's heart rate, while data having an amplitude below that of the set of peaks is ignored. To retrieve enough data to determine a peak amplitude, the signal having heart rate information is sampled at a frequency higher than a normal sampling frequency. In some embodiments, if no data is received for a set time period which is in or above the range, the threshold resets to zero under an assumption that the primary subject is no longer within transmitting range.

Abstract translation: 心率监测器通过减少来自不想要的信号传输源的噪声和串扰来确定主要受试者的心率。 处理具有大约相同幅度和幅度大于任何其它峰值集合的一组脉冲峰值以确定受试者的心率，而忽略具有低于该组峰值的幅度的数据。 为了检索足够的数据以确定峰值幅度，具有高于正常采样频率的频率的具有心率信息的信号被采样。 在一些实施例中，如果在等于或高于该范围的设定时间周期内没有接收到数据，则在假设主要被摄体不在发送范围内的情况下，阈值复位为零。

公开(公告)号：US4970656A

公开(公告)日：1990-11-13

申请号：US426465

申请日：1989-10-20

Applicant: Ying-Ching Lo ,  Tolentino Escorcio ,  Samuel Zambre ,  Ajeet Singh

Inventor： Ying-Ching Lo ,  Tolentino Escorcio ,  Samuel Zambre ,  Ajeet Singh

IPC: A61B17/00 ,  A61F9/007 ,  B06B1/02

CPC classification number: B06B1/0253 ,  A61B2017/00017 ,  A61B2017/00084 ,  A61F9/00745 ,  B06B2201/55

Abstract: The system uses a tunable inductor in series with the piezoelectric crystal excitation transducer in the probe which has a flux modulation coil. The bias current through this flux modulation coil is controlled by the system. It is controlled such that the inductance of the tunable inductor cancels out the capacitive reactance of the load impedance presented by the probe when the probe is being driven by a driving signal which matches the mechanical resonance frequency of the probe. The resulting overall load impedance is substantially purely resistive. The system measures the phase angle and monitors the power level. The system uses this information to adjust the bias current flowing through the flux modulation coil to maintain the substantially purely resistive load impedance for changing power levels. This information is also used to adjust the frequency of the driving signal to track changing mechanical resonance conditions for the probe at different power levels. This method of operation insures substantially maximum power transfer efficiency and substantially linear power control over a range of power dissipation levels. There is also disclosed an analog circuit to measure the phase angle for the load driving signal and to adjust the frequency of the driving signal for best performance. This system includes an integrator to eliminate the effect of offset errors caused by operational amplifiers. There is also disclosed a system to determine the mechanical resonance frequency by sweeping the drive frequency and monitoring the drive current for the frequency at which the drive current is a maximum.

Abstract translation: 该系统使用可调电感器与探头中的压电晶体激发传感器串联，该探头具有通量调制线圈。 通过该通量调制线圈的偏置电流由系统控制。 它被控制使得当探针由与探针的机械共振频率匹配的驱动信号驱动时，可调谐电感器的电感抵消由探头呈现的负载阻抗的容抗。 所得到的总负载阻抗基本上是纯电阻的。 该系统测量相位角并监视功率水平。 该系统使用该信息来调节流过通量调制线圈的偏置电流，以保持用于改变功率电平的基本上纯的电阻性负载阻抗。 该信息还用于调整驱动信号的频率以跟踪不同功率电平下探针的机械共振条件的变化。 这种操作方法确保在功率耗散水平范围上实质上最大的功率传输效率和基本上线性的功率控制。 还公开了一种用于测量负载驱动信号的相位角的模拟电路并且调整驱动信号的频率以获得最佳性能。 该系统包括一个积分器，以消除由运算放大器引起的偏移误差的影响。 还公开了一种通过扫描驱动频率并监测驱动电流为最大频率的驱动电流来确定机械谐振频率的系统。

公开(公告)号：US4954960A

公开(公告)日：1990-09-04

申请号：US35128

申请日：1987-04-06

Applicant: Ying-Ching Lo ,  Samuel Zambre ,  Tolentino Escorcio

Inventor： Ying-Ching Lo ,  Samuel Zambre ,  Tolentino Escorcio

IPC: A61B17/00 ,  A61F9/007 ,  B06B1/02

CPC classification number: B06B1/0253 ,  A61B2017/00017 ,  A61B2017/00084 ,  A61F9/00745 ,  B06B2201/55

Abstract: A driver system for an ultrasonic probe using a tunable inductor in series with the piezoelectric crystal excitation transducer in the probe. The bias current through this flux moduation coil is controlled by the system such that the inductance of the tunable inductor cancels out the capacitive reactance of the load impedance presented by the probe when the probe is being driven by a driving signal which matches the mechanical resonance frequency of the probe. The resulting overall load impedance is substantially purely resistive. The system also adjusts the frequency of the driving signal to track changing mechanical resonance conditions for the probe at different power levels. This method of operation insures substantially maximum power transfer efficiency and substantially linear power control over a range of power dissipation levels. The system determines the mechanical resonance frequency by sweeping the drive frequency and monitoring the drive current to determine the frequency at which the drive current is a maximum.

Abstract translation: 一个超声波探头的驱动系统，使用可调电感器与探头中的压电晶体激发传感器串联。 通过该通量调制线圈的偏置电流由系统控制，使得当探头由与机械谐振频率匹配的驱动信号驱动时，可调电感器的电感消除由探头呈现的负载阻抗的容抗 的探头。 所得到的总负载阻抗基本上是纯电阻的。 该系统还调整驱动信号的频率以跟踪不同功率水平下探头的机械共振条件的变化。 这种操作方法确保在功率耗散水平范围上实质上最大的功率传输效率和基本上线性的功率控制。 系统通过扫描驱动频率并监视驱动电流来确定驱动电流最大值的频率来确定机械谐振频率。