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21. 发明授权

US5062087A Hand held electronic grading level 失效
标题翻译：手持电子等级
公开(公告)号：US5062087A
公开(公告)日：1991-10-29
申请号：US610032
申请日：1990-11-07
申请人： Dmytro Dydzyk
发明人： Dmytro Dydzyk
IPC分类号： G01C15/00 , G01S7/64 , G01S15/02
CPC分类号： G01S7/64 , G01C15/00 , G01S15/025 , Y10S367/91
摘要： A hand held electronic grading level which automatically and accurately calculates the grade of a ground plane and indicates whether said grade is level. The grading level comprises a telescopic site level and a sonar system that is coupled to a microelectronically controlled calculator and a digital read out display. The sight level permits the grading level to be aligned horizontally with a distant sight target. The sonar system then generates an acoustic pulse which is reflected off the ground plane and received at a detector. The elapsed time between the transmission and receipt of the acoustic pulse provides an indication of the vertical elevation from the gorund plane to the sonar system. This elevation is displayed and compared to the known elevation of the distant sight target. The deviation between the shot and known elevations is also displayed to indicate the actual grade of the ground plane and whether said ground plane is level.
摘要翻译：手持式电子等级，自动准确地计算地平面的等级，并指示是否所述等级为等级。分级水平包括可伸缩位置水平和耦合到微电子控制计算器和数字读出显示器的声纳系统。视线水平允许等级水平与远距离瞄准器水平对准。声纳系统然后产生从接地平面反射并在检测器处接收的声脉冲。在声波脉冲的发射和接收之间经过的时间提供了从戈兰平面到声纳系统的垂直仰角的指示。显示该高程，并与远距离瞄准器的已知高程进行比较。拍摄和已知高程之间的偏差也会显示，以指示接地平面的实际等级以及所述接地平面是否平坦。

22. 发明授权

US4935907A Electronic homing system 失效
标题翻译：电子归位系统
公开(公告)号：US4935907A
公开(公告)日：1990-06-19
申请号：US158555
申请日：1988-02-22
申请人： Mark B. Friedman
发明人： Mark B. Friedman
IPC分类号： G01S15/02 , G01S15/87 , G01S17/87 , G06K17/00
CPC分类号： G01S15/87 , G01S15/025 , G01S17/87 , G06K2017/0045 , Y10S367/91
摘要： A homing system for directing the user to one of a plurality of objects and/or locations comprises a plurality of remote modules and a mobile module. The remote modules transmit an uncoded nondirectional response signal after receiving a coded request signal. The mobile module at spaced intervals transmits coded nondirectional request signals. The mobile module generates internal representation of the distance between the receiving means and the selected module from the time measured between the transmission of the request signal and the receipt of the response signal.
摘要翻译：用于将用户引导到多个对象和/或位置中的一个的归位系统包括多个远程模块和移动模块。远程模块在接收到编码的请求信号之后发送未编码的非定向响应信号。间隔间隔的移动模块发送编码的非定向请求信号。移动模块从请求信号的发送和响应信号的接收之间测量的时间产生接收装置和所选择的模块之间的距离的内部表示。

23. 发明授权

US4852510A Scuba whistle 失效
标题翻译：水肺哨子
公开(公告)号：US4852510A
公开(公告)日：1989-08-01
申请号：US40161
申请日：1987-04-20
申请人： Alan W. Joseph, Jr. , Timothy E. Joseph
发明人： Alan W. Joseph, Jr. , Timothy E. Joseph
IPC分类号： B63C11/26 , G10K5/00
CPC分类号： G10K5/00 , B63C11/26 , Y10S367/91
摘要： A resonant tube having an inlet fitting at one end for connection to the regulator hose attached to an intermediate pressure port on the first stage of a scuba diver's regulator and containing therein a sound generator responsive to pressurized air for generating an audible sound to be propagated against the wall of such tube. The outlet from such tube includes a normally closed air valve which may be selectively depressed to release air from such resonator tube causing incoming air to flow through such generator to generate such audible sound. Frequencies generated are propagated to the surrounding water or air.
摘要翻译：一种谐振管，其一端具有入口配件，用于连接到调节器软管，该调节器软管连接到潜水员调节器的第一级上的中间压力端口，并且在其中容纳响应于加压空气的声音发生器，用于产生可传播的声音以抵抗这样的管的墙。这种管的出口包括一个常闭气门，可以选择性地按压以从这种谐振管释放空气，导致进入的空气流过这种发生器以产生这种可听见的声音。产生的频率传播到周围的水或空气。

24. 发明授权

US4584676A Method of and apparatus for pipe length measurement 失效
标题翻译：管道长度测量方法和设备
公开(公告)号：US4584676A
公开(公告)日：1986-04-22
申请号：US358290
申请日：1982-03-15
申请人： John W. Newman
发明人： John W. Newman
IPC分类号： G01B17/00 , G01S15/14
CPC分类号： G01B17/00 , Y10S367/902 , Y10S367/91
摘要： An improved method and apparatus for measuring the length of an open pipe includes a sound transducer placed in spaced open air communication with the interior of the pipe at a selected end. A logic circuit is employed with the transducer for producing a square wave sound pulse that is directed at the pipe's selected end. An oscillator provides an ambient temperature modified count in accordance with the time required for the pulse to travel the length of the pipe and return. For compensating for error tending to be introduced because of the spacing of the impedance reflective surface at the far end of the pipe, a standoff device establishes such a distance between the transducer and the selected end of the pipe as to effect an adjustment in the duration of the oscillator count that corrects for the error. In another embodiment a microprocessor is employed with the transducer to produce two successive square wave sound pulses to effect an adjustment in the count of an oscillator clock to avoid a false reading due to the above-mentioned spacing of the reflective surface. The amplitude of the greatest peak of the first pulse is measured. The gain of an amplifier is then adjusted to make a timer stop, modified in accordance with ambient temperature, during the reception of the echo from the second pulse when 40% of the amplitude of the peak echo is obtained.
摘要翻译：用于测量开放管道的长度的改进的方法和装置包括在选定的端部处与管道内部间隔开的空气连通的声换能器。传感器采用逻辑电路产生针对管道选定端的方波声脉冲。振荡器根据脉冲行进管道长度和返回所需的时间提供环境温度修改计数。为了补偿由于管道远端处的阻抗反射表面的间距而导致的误差，间隔装置在换能器和管道的选定端之间建立这样的距离，以实现持续时间的调节的振荡器数量来纠正错误。在另一个实施例中，微处理器与换能器一起使用以产生两个连续的方波声音脉冲，以实现振荡器时钟的计数的调整，以避免由于反射表面的上述间隔引起的误读。测量第一脉冲的最大峰值的振幅。然后调整放大器的增益，以便在获得峰值回波的40％的幅度时从第二脉冲接收回波期间根据环境温度修改定时器停止。

25. 发明授权

US4280204A Mobility cane for the blind incorporating ultrasonic obstacle sensing apparatus 失效
标题翻译：超声波障碍物传感装置的盲人移动手杖
公开(公告)号：US4280204A
公开(公告)日：1981-07-21
申请号：US45783
申请日：1979-06-05
申请人： Gilbert M. Elchinger
发明人： Gilbert M. Elchinger
IPC分类号： A61H3/06 , G01S15/18 , G01S15/88
CPC分类号： A61H3/068 , A61H3/061 , G01S15/18 , G01S15/88 , A61H2003/063 , Y10S135/911 , Y10S367/91
摘要： A conventional mobility cane for the blind incorporates a compact, dual-mode, ultrasonic obstacle detection sensor that includes a combination transmitting and receiving, capacitance type electrostatic transducer. The size of the protective zone associated with said sensor is infinitely variable. In one mode, the sensor warns of low lying objects that might contact the upper extremities of an ambulatory mobility cane user. In another mode, the user can determine the presence or absence of more remote objects. Means are provided for readily alternating between said object sensor modes.
摘要翻译：用于盲人的常规移动性手杖包括紧凑的双模式超声波障碍物检测传感器，其包括组合发射和接收静电传感器。与所述传感器相关联的保护区域的大小是无限可变的。在一种模式中，传感器警告可能接触流动动力学甘蔗用户的上肢的低位物体。在另一种模式下，用户可以确定是否存在更多的远程对象。提供了用于在所述物体传感器模式之间容易地交替的装置。

26. 发明授权

US3987403A Sensory aids for the blind 失效
标题翻译：感觉辅助盲人
公开(公告)号：US3987403A
公开(公告)日：1976-10-19
申请号：US541146
申请日：1975-01-15
申请人： Russell Peter Smith
发明人： Russell Peter Smith
IPC分类号： A61H3/06 , G01S15/34 , G01S15/87 , G01S15/88 , G02C11/00 , G01S9/68 , G01S7/54
CPC分类号： G01S15/34 , G01S15/87 , G01S15/88 , Y10S367/90 , Y10S367/91
摘要： A sensory aid for the blind in which a frequency swept ultra-sonic carrier signal is generated and radiated as acoustic energy from a head set and reflected acoustic energy is received by two spaced apart receiving transducers which feed a two channel receiver. The receiving transducers have divergent polar lobes which in combination with the polar lobe of the transmitting transducer simulate the characteristics of a normal human auditory system. The carrier signal is multiplied with each received signal to produce respective beat frequency signals each of which have a frequency and level which is dependant on the range and direction respectively of the source of reflection with respect to the user. The gain of both channels is controlled synchronously by controlling the level of the carrier signal multiplied with each received signal. The range of gain control can be increased by feeding the transmitting transducer with the controlled level carrier signal.
摘要翻译：其中产生频率扫描的超声波载波信号并作为来自头组和反射声能的声能辐射的盲人的感觉辅助装置由两个间隔开的接收换能器接收，该接收换能器馈送双通道接收器。接收传感器具有发散的极瓣，其与发射换能器的极瓣相结合，模拟正常人类听觉系统的特征。载波信号与每个接收信号相乘以产生各自的频率信号，每个频率信号具有取决于相对于用户的反射源的范围和方向的频率和电平。通过控制与每个接收信号相乘的载波信号的电平，同步地控制两个信道的增益。增益控制的范围可以通过向发射传感器馈送受控电平载波信号来增加。

27. 发明授权

US3489993A Ultrasonic homing beacon and communication equipment for underwater swimmers 失效
公开(公告)号：US3489993A
公开(公告)日：1970-01-13
申请号：US3489993D
申请日：1967-08-17
申请人： DYNAMICS CORP AMERICA
发明人： MASSA FRANK JR
IPC分类号： G01S1/72 , H04B13/02 , G01V1/00
CPC分类号： G01S1/725 , Y10S367/91

28. 发明授权

US2659878A Ranging system 失效
公开(公告)号：US2659878A
公开(公告)日：1953-11-17
申请号：US1306548
申请日：1948-03-04
申请人： STROMBERG CARLSON CO
发明人： MEEKER WILLARD F , SLAYMAKER FRANK H
IPC分类号： G01S13/34
CPC分类号： G01S13/343 , Y10S367/91

29. 发明授权

US2500638A Aid for the blind 失效
标题翻译：援助盲人
公开(公告)号：US2500638A
公开(公告)日：1950-03-14
申请号：US66512246
申请日：1946-04-26
申请人： BELL TELEPHONE LABOR INC
发明人： KRAUTH EDWIN A
IPC分类号： G01S15/10
CPC分类号： G01S15/105 , Y10S367/91

30. 发明授权

US09270387B2 Mobile device with an underwater communications system and method 有权
标题翻译：具有水下通信系统和方法的移动设备
公开(公告)号：US09270387B2
公开(公告)日：2016-02-23
申请号：US14061155
申请日：2013-10-23
申请人： WFS Technologies Ltd.
发明人： Derek Wolfe , Brendan Hyland
IPC分类号： H04B13/02
CPC分类号： H04B13/02 , Y10S367/901 , Y10S367/904 , Y10S367/91
摘要： An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data input. A digital data compressor compresses data to be transmitted. A modulator modulates compressed data onto a carrier signal. An electrically insulated, magnetic coupled antenna transmits the compressed, modulated signals. The receiver that has an electrically insulated, magnetic coupled antenna for receiving a compressed, modulated signal. A demodulator is provided for demodulating the signal to reveal compressed data. A de-compressor de-compresses the data. An appropriate human interface is provided to present transmitted data into text/audio/visible form. Similarly, the transmit system comprises appropriate audio/visual/text entry mechanisms.
摘要翻译：提供一种将电磁和/或磁信号传输到远程接收器的水下通信系统。发射机包括数据输入。数字数据压缩器压缩要发送的数据。调制器将压缩数据调制到载波信号上。电绝缘的磁耦合天线传输压缩的调制信号。具有用于接收压缩的调制信号的电绝缘磁耦合天线的接收器。提供解调器用于解调信号以显示压缩数据。解压缩器解压缩数据。提供适当的人机界面以将传输的数据呈现为文本/音频/可视形式。类似地，发射系统包括适当的音频/视频/文本输入机制。

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