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1. 发明授权

US11481714B2 Autonomous wireless mobile asset monitoring system 有权
公开(公告)号：US11481714B2
公开(公告)日：2022-10-25
申请号：US15848581
申请日：2017-12-20
申请人： Skywave Mobile Communications Inc.
发明人： Robert James Fry , Philippe Jonathan Gabriel Lafleur
IPC分类号： H04W4/38 , G06Q10/08 , G01S15/10 , G01S15/04 , G01S7/529 , G01S7/527 , G01S15/88 , H01Q21/06 , H04B11/00 , H04W52/02
摘要： Disclose are various approaches for optimizing operation of an autonomous wireless mobile asset monitoring system. The approaches involve detecting the presence of cargo in a mobile asset. First, if energy conservation is a requirement of the system, each zone of the mobile asset is scanned until cargo is detected in one of the zones. Then, the results of the scan are transmitted to backend infrastructure. Alternatively, if energy conservation is not a requirement of the system, every zone of the mobile asset is scanned and the results of the scan are transmitted to backend infrastructure.

2. 发明授权

US10852427B2 Ultrasonic ranging state management for unmanned aerial vehicles 有权
公开(公告)号：US10852427B2
公开(公告)日：2020-12-01
申请号：US15639335
申请日：2017-06-30
申请人： GoPro, Inc.
发明人： Stepan Moskovchenko , Joseph Anthony Enke
IPC分类号： G01S15/00 , G01S15/10 , B64C39/02 , B64D47/00 , G01S7/529 , G01S7/52 , G01S15/86 , G01S7/527 , H04L29/08
摘要： Ultrasonic ranging state management for a UAV is described. A transducer transmits an ultrasonic signal and receives an ultrasonic response thereto using a gain value. A noise floor estimation mechanism determines a noise floor estimate. A state mechanism sets an ultrasonic ranging state used by the transducer to a first ultrasonic ranging state. The transducer transmits an ultrasonic signal and responsively receive an ultrasonic response to the ultrasonic signal using a gain value according to the noise floor estimate. The state mechanism processes the ultrasonic response to determine whether to determine a new noise floor estimate, adjust the gain value used by the transducer, or change the ultrasonic ranging state of the UAV to a second ultrasonic ranging state. The configurations of the first and second ultrasonic ranging states differ as to, for example, power and gain levels used by the transducer to receive ultrasonic responses.

3. 发明授权

US09698802B2 Method for amplifying an echo signal suitable for vehicle surroundings detection and device for carrying out the method 有权
公开(公告)号：US09698802B2
公开(公告)日：2017-07-04
申请号：US14344117
申请日：2012-07-17
申请人： Matthias Karl
发明人： Matthias Karl
IPC分类号： H03M1/00 , G01S15/93 , G01S7/529 , G01S13/93 , H03M1/18 , G01N27/00 , G01V9/00 , H02M5/42
CPC分类号： H03M1/001 , G01N27/00 , G01S7/529 , G01S13/931 , G01S15/931 , G01V9/00 , H02M5/42 , H03M1/182 , H03M1/185
摘要： A method for amplifying an echo signal, in which an analog echo signal suitable for detection of a vehicle's surroundings is amplified by a gain dependent on the transit time of the echo signal, the analog echo signal being amplified by an amplifier having a plurality of outputs, each having a different gain, and a downstream A/D converter having a time-variable reference voltage. In the process, there is a switch between the different outputs of the amplifier at predefined switching points in time, and the reference voltage of the A/D converter varies over time between the switching points in time in such a way that the echo signal is present at the output of the A/D converter with a transit time-dependent total gain having a predefined characteristic.

4. 发明授权

US09329074B2 Multi-mode pulsed radar providing automatic transmit pulse signal control 有权
标题翻译：提供自动发射脉冲信号控制的多模脉冲雷达
公开(公告)号：US09329074B2
公开(公告)日：2016-05-03
申请号：US14099152
申请日：2013-12-06
申请人： HONEYWELL INTERNATIONAL INC.
发明人： Bin Sai
IPC分类号： G01S7/34 , G01S7/52 , G01S13/88 , G01F23/284 , G01S7/285 , G01S13/10 , G01S13/26 , G01S13/28 , G01S13/02 , G01S7/529 , G01S7/40
CPC分类号： G01F23/284 , G01S7/285 , G01S7/34 , G01S7/4008 , G01S7/52033 , G01S7/529 , G01S13/0209 , G01S13/106 , G01S13/26 , G01S13/282 , G01S13/88 , G01S2007/4013
摘要： A multi-mode pulsed radar method for sensing or measuring a product material in a storage tank includes providing a measure of radar signal attenuation for pulsed radar signals transmitted to the product material. Automatic adjustment of one or more transmitted radar pulse parameters is implemented by selecting a pulse width and a pulse amplitude based on the measure of radar signal attenuation. In signal mode 2 higher amplitude and/or wider pulses are selected when the measure of radar signal attenuation is relatively high and in signal mode 1 lower amplitude and/or narrower pulses are selected when the measure of radar signal attenuation is relatively low. The radar pulse is transmitted to the product material using the selected pulse width and the pulse amplitude. The target signal reflected or scattered from the product material is processed to determine at least one parameter, such as product level.
摘要翻译：用于感测或测量储罐中的产品材料的多模式脉冲雷达方法包括提供传输到产品材料的脉冲雷达信号的雷达信号衰减量度。通过基于雷达信号衰减的测量选择脉冲宽度和脉冲幅度来实现一个或多个发射的雷达脉冲参数的自动调整。在信号模式2中，当雷达信号衰减的测量值相对较高时，选择较高的幅度和/或较宽的脉冲，而在信号模式1中，当雷达信号衰减的测量值相对较低时，选择较低的幅度和/或较窄的脉冲。使用所选择的脉冲宽度和脉冲幅度将雷达脉冲传输到产品材料。从产品材料反射或散射的目标信号被处理以确定至少一个参数，例如产品水平。

5. 发明授权

US08067996B2 Vanadium-dioxide front-end advanced shutter technology 有权
标题翻译：二氧化钒前端先进快门技术
公开(公告)号：US08067996B2
公开(公告)日：2011-11-29
申请号：US12291874
申请日：2008-11-14
申请人： Christopher E. Hillman , Jeffrey F. De Natale , Jonathan B. Hacker , J. Aiden Higgins , Paul H. Kobrin
发明人： Christopher E. Hillman , Jeffrey F. De Natale , Jonathan B. Hacker , J. Aiden Higgins , Paul H. Kobrin
IPC分类号： H03G11/04 , H01B1/10 , H04B1/18 , G01S7/529
CPC分类号： H01P1/10
摘要： A vanadium dioxide front-end advanced shutter device. The electronic shutter device is designed to protect receiver front-ends and other sensitive circuits from HPM pulse events such as HPM weapons, directed energy weapons, or EMPs. The shutter incorporates a transition material such as thin-film vanadium oxide (VOX) materials that exhibit a dramatic change in resistivity as their temperature is varied over a narrow range near a known critical temperature. A high-energy pulse causes ohmic heating in the shutter device, resulting in a state change in the VOX material when the critical temperature is exceeded. During the state change the VOX material transitions from an insulating state (high resistance) to a reflective state (low resistance). In the insulating state, the shutter device transmits the majority of the signal. In the reflective state, most of the signal is reflected and prevented from passing into electronics on the output side of the shutter device.
摘要翻译：二氧化钒前端先进的快门装置。电子快门装置设计用于保护接收机前端和其他敏感电路免受诸如HPM武器，定向能量武器或EMP之类的HPM脉冲事件。快门结合了诸如薄膜钒氧化物（VOX）材料的过渡材料，当材料的温度在已知的临界温度附近的窄范围内变化时，其表现出显着的电阻率变化。高能量脉冲在快门装置中引起欧姆加热，导致超过临界温度时VOX材料的状态变化。在状态改变期间，VOX材料从绝缘状态（高电阻）转变为反射状态（低电阻）。在绝缘状态下，快门装置传输大部分信号。在反射状态下，大多数信号被反射并防止进入快门装置输出侧的电子装置。

6. 发明授权

US06950372B2 Digital sounder module and method for detecting 有权
标题翻译：数字式发声器模块及其检测方法
公开(公告)号：US06950372B2
公开(公告)日：2005-09-27
申请号：US10704606
申请日：2003-11-12
申请人： Sten Sogaard
发明人： Sten Sogaard
IPC分类号： G01S15/10 , G01S7/526 , G01S7/527 , G01S7/529 , G01S15/96 , G01S15/00
CPC分类号： G01S7/5273 , G01S7/529 , G01S15/96 , Y10S367/90
摘要： The invention is a digital sounder module and its method for detection. The digital sounder module includes a sonar carrier wave producing means, a band-pass filter, a pre-amplifier for providing a high sensitivity and extending a wide dynamic range, and an analog-to-digital converter for providing a digital implementation of a superheterodyne detector and producing an intermediate frequency. The digital sounder module also includes a programmable logic device for controlling a gain of the pre-amplifier and for digitally filtering the intermediate frequency and a microprocessor. The method implemented by the controlled per-amplifier gain processes the return echo signal by controlled ramp up of the gain over time to compensate for the change in signal strength in proportion to the length of the return path.
摘要翻译：本发明是数字式发声器模块及其检测方法。数字发声器模块包括声纳载波产生装置，带通滤波器，用于提供高灵敏度和扩展宽动态范围的前置放大器，以及用于提供超外差数字实现的模 - 数转换器检测器并产生中频。数字发声器模块还包括用于控制前置放大器的增益和用于数字滤波中频的可编程逻辑器件和微处理器。通过控制的每放大器增益实现的方法通过随着时间的增益的控制斜升来处理返回回波信号，以补偿与返回路径的长度成比例的信号强度的变化。

7. 发明授权

US5631875A Device for measuring distance with ultrasound 失效
标题翻译：用超声波测量距离的装置
公开(公告)号：US5631875A
公开(公告)日：1997-05-20
申请号：US618512
申请日：1996-03-19
申请人： Roman Romes , Karl-Heinz Dambacher
发明人： Roman Romes , Karl-Heinz Dambacher
IPC分类号： G01S7/527 , G01S7/529 , G01S15/10 , G01S15/00 , G01S7/52
CPC分类号： G01S7/529 , G01S15/10 , G01S7/527
摘要： A device for the measurement of distance with ultrasound is provided in which a transmitter emits a pulse-type signal which is reflected and is converted into an electrical echo signal in a receiver. The distance between transmitter and receiver is determined by measuring the transit time between the emitted and the received signal. Since the level of the echo signal as a function of the emitted signal depends on the characteristics of the reflector and on the distance between transmitter and receiver, inaccuracies may occur in the evaluation of the echo signal and these are avoided by varying a switching threshold or by varying the amplification of the echo signal or by modifying the radiated signal as a function of the previously received echo signal.
摘要翻译：提供了一种用于测量与超声波距离的装置，其中发射器发射反射并在接收机中被转换成电回声信号的脉冲型信号。发射机和接收机之间的距离通过测量发射和接收信号之间的传输时间来确定。由于作为发射信号的函数的回波信号的电平取决于反射器的特性以及发射器和接收器之间的距离，所以在回波信号的评估中可能会出现不准确之处，并且通过改变开关阈值或通过改变回波信号的放大或通过根据先前接收到的回波信号修改辐射信号。

8. 发明授权

US5600675A Ultrasonic imager having improved bandwidth 失效
标题翻译：超声波成像器具有改进的带宽
公开(公告)号：US5600675A
公开(公告)日：1997-02-04
申请号：US301746
申请日：1994-09-07
申请人： William E. Engeler
发明人： William E. Engeler
IPC分类号： G01S7/52 , G01S7/527 , G01S7/529 , G01S15/89 , H04L5/12 , H04B1/66 , H04L23/02
CPC分类号： G01S15/89 , G01S7/527 , G01S15/8906 , G01S7/52028 , G01S7/529
摘要： An ultrasonic imaging system which utilizes two summation channels to provide increased bandwidth employs two demodulation stages in each receive channel. The first demodulator receives digital signals from an analog-to-digital converter and demodulates those signals to baseband, thereby producing an in-phase component and a quadrature component. The in-phase and quadrature components are demodulated by the second demodulator, forming a total of four signals which are filtered and combined to form two sets of complex signals. One set corresponds to the upper or high frequencies and the other set corresponds to the lower frequencies. Each band is treated separately in a subsequent phase rotation. The phase changes reflect those required by the center frequency of each of the subbands. The upper band signals are coherently summed in one summation channel, while the lower band signals are coherently summed in another summation channel. The coherently summed upper and lower band signals are then reconstituted into one composite baseband signal.
摘要翻译：利用两个求和通道提供增加带宽的超声成像系统在每个接收通道中采用两个解调级。第一解调器从模数转换器接收数字信号并将这些信号解调为基带，从而产生同相分量和正交分量。同相和正交分量由第二解调器解调，形成总共四个信号，其被滤波和组合以形成两组复信号。一组对应于高频或高频，另一组对应于较低频率。在随后的相位旋转中分别对每个波段进行处理。相位变化反映了每个子带的中心频率所需的相位。高频带信号在一个求和信道中相干相加，而较低频带信号在另一个求和信道中相干相加。然后将相干相加的上和下频带信号重构为一个复合基带信号。

9. 发明授权

US5582174A Ultrasonic diagnostic system 失效
标题翻译：超声诊断系统
公开(公告)号：US5582174A
公开(公告)日：1996-12-10
申请号：US507973
申请日：1995-07-27
申请人： Takeshi Shirai
发明人： Takeshi Shirai
IPC分类号： A61B8/06 , G01N29/40 , G01P5/24 , G01S7/529 , G01S15/52 , G01S15/58 , A61B8/00
CPC分类号： G01S15/582 , A61B8/06 , G01N29/40 , G01P5/244 , G01N2291/02836
摘要： In an ultrasonic diagnostic system, information as to the inside of the subject is indicated on the basis of a received signal which is obtained through receiving ultrasonic beams reflected within the subject. A difference signal is formed by subtracting a subtraction signal from the received signal, which subtraction signal is generated based on the received signal associated with a scanning line associated with the received signal or a scanning line different from the former scanning line. The difference signal is suitably amplified and analog-to-digital converted.
摘要翻译：在超声波诊断系统中，基于通过接收被摄体内反射的超声波束而获得的接收信号来表示关于被检体内部的信息。通过从接收信号中减去减法信号来形成差分信号，基于与与接收信号相关联的扫描线或与前一扫描线不同的扫描线相关联的接收信号来生成减法信号。差分信号被适当地放大并进行模数转换。

10. 发明授权

US5425000A Spatial rejection of direct blast interference in multistatic sonars 失效
标题翻译：多声道声纳直接爆炸干扰的空间排斥
公开(公告)号：US5425000A
公开(公告)日：1995-06-13
申请号：US169887
申请日：1993-12-16
申请人： Francis A. Reed , Paul H. Thai
发明人： Francis A. Reed , Paul H. Thai
IPC分类号： G01S7/529 , G01S13/00 , G01S15/87 , G01S15/02
CPC分类号： G01S7/529 , G01S15/87 , G01S13/003 , Y10S367/90 , Y10S367/901
摘要： A multistatic sonar system (50) employing a short duration automatic gain control (AGC) following beamforming of the return signal to reject spatial transients at the sonar waveform leading and trailing edges. The output of the beamformer (58) is delayed by a delay line (60A) before passing through a programmable gain (60B). The magnitude of an undelayed version of the beamformer output is also squared (60D) and averaged over a time window (60E). This average is used to normalize the delayed value of the beamformer output. The normalized output of the beamformer is compared (60C) with a threshold having a value much greater than unity, and the comparator output controls the gain circuit (60B). When the normalized value of the beamformer output exceeds the threshold value, the gain of the AGC is set to a value much smaller than unity. When the normalized value of the beamformer output does not exceed the threshold, the gain of the AGC is set to unity.
摘要翻译：波束形成返回信号之后采用短时间自动增益控制（AGC）的多状态声纳系统（50），以消除声纳波形引导和后沿处的空间瞬变。在通过可编程增益（60B）之前，波束形成器（58）的输出被延迟线（60A）延迟。波束形成器输出的未延迟版本的幅度也被平方（60D）并且在时间窗口（60E）上取平均值。该平均值用于归一化波束形成器输出的延迟值。将波束形成器的归一化输出与具有远大于1的值的阈值进行比较（60℃），并且比较器输出控制增益电路（60B）。当波束形成器输出的归一化值超过阈值时，AGC的增益被设置为远小于单位的值。当波束形成器输出的归一化值不超过阈值时，AGC的增益被设置为1。

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