| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | 一种基于声波通信的测距装置和方法 | CN201410724354.0 | 2014-12-03 | CN104483674A | 2015-04-01 | 蓝艇; 谢建军; 史旭华; 李潇; 邬杨波; 刘慰 |
| 本发明公开了一种基于声波通信的测距装置和方法，第一控制器驱动第一超声波发射电路发送测距请求信号，第一控制器记录发射时刻为T1，第二超声波接收电路接收测距请求信号，第二控制器记录接收时刻为T2，第二控制器驱动第二超声波发射电路发射测距应答信号，第二控制器记录发射时刻为T3，第一超声波接收电路接收测距应答信号，第一控制器记录接收时刻为T4，第一控制器根据发送测距请求信号和接收应答信号的时间差t1=T4-T1、第二控制器根据接收测距请求信号和发送应答信号的时间差t2=T3-T2和声波传输速度v计算得到移动点和参考点之间的距离D=（t1-t2）v/2；其优点是实现两个确定点之间的距离测量。 | ||||||
| 22 | 一种多列等差频率原波相互作用形成参量阵的声场获取方法 | CN201410409816.X | 2014-08-20 | CN104215964A | 2014-12-17 | 杨德森; 李中政; 方尔正; 时胜国 |
| 本发明属于适用于参量阵工程应用领域，具体涉及一种多列等差频率原波相互作用形成参量阵的声场获取方法。本发明包括：读取多列高频原波组合而成声波波形；宽带高频换能器将预设的特定声波信号波形辐射出去，通过传播媒质的非线性解调作用，最终生成具有低频、高指向性的系列差频波束；设定参量阵声场的计算区域，并进行网格化离散；利用有限差分法获取多列声波相互作用条件下的参量阵声场。该方法提高了计算精度，更为准确的计算了参量阵辐射系统声场的分布特点，形象直观地显示出参量阵的声场分布情况，更加准确、全面地反映声场性能。 | ||||||
| 23 | 使用声音信号的距离估计 | CN201180024988.X | 2011-05-13 | CN102893175B | 2014-10-29 | W.J.兰布; R.M.亚尔特斯 |
| 一种设备包括测试信号发生器（401），其通过将音频带测试信号调制到超声波信号上来生成超声波测试信号。超声波测试信号从参量扩音器（403）中辐射，并且在空中利用非线性来解调。反射的音频信号可以源于诸如墙体之类的对象的反射。音频带传感器（405）生成音频带捕获信号，其包括解调的反射音频带信号。距离电路（407）随后针对从参量扩音器（403）到对象的距离生成距离估计，以响应音频带捕获信号与音频带测试信号的比较。特别地，两个信号可以被相关，以确定与全路径长度相对应的延迟。基于距离估计，音频环境可以被估计，并且音响系统可以相应地被适配。 | ||||||
| 24 | 一种频域调制式超声波测距系统频率拐点判别方法 | CN201410226408.0 | 2014-05-27 | CN104101870A | 2014-10-15 | 朱金刚; 蔡领; 周聪敏; 陈佳旭 |
| 本发明公开了一种频域调制式超声波测距系统频率拐点判别方法，该方法具体为：控制电路采集i组数据长度为j的超声波周期数据；对于每一组数据，自第2个数据开始，依次计算相邻前后两个数据的差值，然后再对这些差值依次分段判断其绝对值是否全大于0，符合要求的数据即为此组数据周期值变化的位置；对其余的数据组作同样的处理，得到各组数据中周期值变化的位置；对各个周期变化的位置作概率统计，出现概率最大的作为此次测量数据组中有效的周期值变化位置（频率拐点），与此相关的测量数据有效，用于计算测量距离，其余的测量数据作为无效数据舍弃。 | ||||||
| 25 | 제1 고조파와 독립적인 출력 신호 제어 | KR1020160133296 | 2016-10-14 | KR1020170046579A | 2017-05-02 | 잰슨스존카미엘줄리아; 호르스키파벨; 카메니치키페트르 |
| 방법은출력신호를형성하기위해이용되는적어도 3개의출력레벨들을제공하도록송신기를구성하는단계를포함한다. 방법은출력신호의제1 고조파의진폭과독립적으로출력신호의평균값을제어하기위해출력레벨들중 적어도하나의지속기간을조절하는단계를추가로포함한다. | ||||||
| 26 | 가변주파수 방식 스캐닝 소나를 이용한 양식장 수중 모니터링 시스템과 그 방법 | KR1020170169651 | 2017-12-11 | KR101878435B1 | 2018-07-13 | 김영진; 최승환 |
| 본발명에따르면, 송신초음파를송신하는단일트랜스듀서; 복합변조신호에기초하여상기단일트랜스듀서에제공되는송신신호를생성하는송신신호증폭부; 공진주파수및 상한주파수에기초하여상기복합변조신호를생성하고상기송신신호증폭부에제공하는변조부; 상기송신초음파가외부물체로부터반사되어수신된초음파반향신호및 상기송신신호에기초하는레퍼런스신호에의해산출된비교기준신호를적응적으로생성하는비교기준신호생성부; 상기비교기준신호와상기수신된초음파반향신호를비교하여초음파출력신호를생성하는비교부; 및상기초음파출력신호에기초하여상기외부물체와의거리를산출하고, 산출된거리에기초하여원거리모드및 근거리모드로제어하는신호처리제어부를포함하는스캐닝소나를포함하며, 상기원거리모드일때에는상기송신초음파가상기공진주파수로송신되고근거리모드일때에는상기송신초음파가상기상한주파수로송신되는것을특징으로하는양식장수중모니터링시스템이제공된다. | ||||||
| 27 | 주차 보조 장치 및 차량 | KR1020140127658 | 2014-09-24 | KR101513198B1 | 2015-04-17 | 김성민; 조병림; 박준호 |
| 본발명은제1 주파수및 제2 주파수를합성하여합성주파수를생성하는주파수생성부, 압전효과를이용하여, 상기합성주파수를갖는초음파를발신하거나상기초음파가물체에의해반사되는에코초음파를수신하는압전변환부및 상기에코초음파로부터소정주파수성분을검출하는필터부;를포함하는주차보조장치에관한것이다. | ||||||
| 28 | 개인용 물체 검지기 | KR1019980708403 | 1997-04-23 | KR1020000010553A | 2000-02-15 | 버지스,데이비드; 펠센스테인,리; 사운더즈,스티븐 |
| PURPOSE: A personal object detector, in particular a sonar-based object detector is disclosed. CONSTITUTION: The personal object or obstacle detector apparatus comprises a continuous transmission frequency modulation (CTFM) ranging system (12) and an audio output device (14). The CTFM ranging system transmits a frequency swept pressure wave, receives a reflected frequency swept pressure wave from at least one object (34), and forms an audio signal based upon a frequency difference between the frequency swept pressure wave and the reflected frequency swept pressure wave. The audio output device (14) produces an acoustic pressure wave in dependence upon the audio signal. In a preferred embodiment, the acoustic pressure wave contains separate tones (30, 32) for each of the objects detected, wherein each tone has a pitch dependent upon the distance from the CTFM ranging system (12) to the corresponding object. Another embodiment utilizes a pair of CTFM ranging systems to produce a stereo auditory map of objects and obstacles. | ||||||
| 29 | Personal medical device interference mitigation | US15149039 | 2016-05-06 | US09955325B2 | 2018-04-24 | George Chrisikos; Richard Wietfeldt |
| A system may include a sensor system and a control system configured for communication with the sensor system. The sensor system may include an ultrasonic sensor system. The control system may be capable of determining, based at least in part on signals from the ultrasonic sensor system, whether a personal medical device is within a predetermined distance from the mobile device. The control system may be capable of adjusting one or more mobile device settings in response to a determination that the personal medical device is within the predetermined distance of the mobile device. | ||||||
| 30 | Vector sensor for measuring particle movement in a medium | US15027816 | 2014-10-03 | US09835489B2 | 2017-12-05 | Markus Linne; Peter Sigray |
| The present invention relates to a vector sensor for measuring particle movement in a medium. The vector sensor comprises a magnetic body that is held at a certain distance from a magnetometer in such a way that the magnetic body can move in time with a passing particle movement, wherein the magnetometer is arranged to detect the oscillations in the magnetic field that the movements in the medium produce. | ||||||
| 31 | PERSONAL MEDICAL DEVICE INTERFERENCE MITIGATION | US15149039 | 2016-05-06 | US20170325081A1 | 2017-11-09 | George Chrisikos; Richard Wietfeldt |
| A system may include a sensor system and a control system configured for communication with the sensor system. The sensor system may include an ultrasonic sensor system. The control system may be capable of determining, based at least in part on signals from the ultrasonic sensor system, whether a personal medical device is within a predetermined distance from the mobile device. The control system may be capable of adjusting one or more mobile device settings in response to a determination that the personal medical device is within the predetermined distance of the mobile device. | ||||||
| 32 | Parking assistance for a vehicle | US14863240 | 2015-09-23 | US09784833B2 | 2017-10-10 | Sungmin Kim; Byeongrim Jo; Juhnho Park |
| Systems and techniques are described that provide automated parking assistance for a vehicle. In some implementations, a parking assistance apparatus includes a frequency generator configured to generate a first frequency and a second frequency, and generate at least one synthesized frequency that is synthesized from the first frequency and the second frequency. The apparatus also includes a piezoelectric converter configured to, using piezoelectric effects, transmit ultrasonic waves having the at least one synthesized frequency, and receive reflected ultrasonic waves that result from the transmitted ultrasonic waves being reflected by an object. The apparatus also includes a filter unit configured to detect a predetermined frequency from the reflected ultrasonic waves. | ||||||
| 33 | Echolocation systems and methods | US13803731 | 2013-03-14 | US09377530B2 | 2016-06-28 | Daniel Kish; Derik DeVecchio |
| An echolocation device assists visually impaired persons to navigate their environment. The echolocation device comprises a micro control unit, a power source operably connected to the micro control unit, a band pass preamplifier operably connected to the micro control unit, a power amplifier operably connected to the band pass preamplifier, a piezoelectric speaker operably connected to the power amplifier, and a user interface operably connected to the micro control unit. The device emits sound waves that echo off nearby surrounding objects. The visually impaired person listens to the echoes to determine the location or size of the surrounding objects. | ||||||
| 34 | Distance estimation using sound signals | US13698401 | 2011-05-13 | US08811119B2 | 2014-08-19 | Ronaldus Maria Aarts; William John Lamb |
| An apparatus comprises a test signal generator (401) which generates an ultrasonic test signal by modulating an audio band test signal on an ultrasonic signal. The ultrasonic test signal is radiated from a parametric loudspeaker (403) and is demodulated by non-linearities in the air. A reflected audio signal may arise from reflections of an object, such as a wall. An audio band sensor (405) generates an audio band captured signal which comprises the demodulated reflected audio band signal. A distance circuit (407) then generates a distance estimate for the distance from the parametric loudspeaker (403) to the object in response to a comparison of the audio band captured signal and the audio band test signal. Specifically two signals may be correlated to determine a delay corresponding to the full path length. Based on the distance estimates an audio environment may be estimated and a sound system may be adapted accordingly. | ||||||
| 35 | MOVING OBJECT DETECTING APPARATUS | US13328086 | 2011-12-16 | US20120087210A1 | 2012-04-12 | Fumihiro KASANO; Susumu Katayama; Toru Mugiuda; Kazushi Goto; Hidehiko Fujikawa; Motohiro Minamino |
| A moving object detecting apparatus includes: a transmitting/receiving unit for radiating an ultrasonic wave and receiving a reflective wave reflected from an object present in a monitoring space; a phase detection circuit for mixing reference signals with a reflective signal and obtaining a pair of Doppler signals each having an amplitude depending on a phase difference from the reference signal, each of the Doppler signals having a different phase from each other; a rotation angle calculation unit for calculating a rotation angle; a cumulative addition unit for accumulating the rotation angle; and a comparison unit for comparing the accumulated rotation angle with a threshold value. In the moving object detecting apparatus, a single ultrasonic vibrator is commonly used in the transmitting unit and the receiving unit. | ||||||
| 36 | Localization of high speed vehicles using continuous transmit waves | US10809005 | 2004-03-25 | US07149148B2 | 2006-12-12 | Evan Frank Berkman; Paul D. Koenigs |
| The selection of multiple, suitably designed, demodulation reference signals can enable the measurement of a vehicle's speed using continuously transmitted frequency modulated (CTFM) signals. The unique solution of vehicle speed can be used to resolve the range Doppler ambiguity found in conventional CTFM sonar and radar systems. This can enable continuous range and speed estimates of high-speed vehicles with an attendant reduction in transmit power relative to pulse-echo systems with similar measures of performance due to the 100% duty cycle. | ||||||
| 37 | Speed measuring apparatus | US09199820 | 1998-11-25 | US06272071B1 | 2001-08-07 | Takuo Takai; Fumio Ikeuchi |
| A speed measuring apparatus including a transmitter for transmitting an acoustic reference wave toward a moving-target, the acoustic reference wave being generated based on a reference signal with a predetermined frequency. Also included is a receiver for receiving acoustic reflection waves which are generated by the transmitted acoustic reference wave being reflected by the moving-target, for converting the acoustic reflection waves to receiver signals, and for outputting the receiver signals therefrom. Further, a signal attenuating unit for selectively attenuating a signal component with the same frequency as the frequency of the reference signal in the receiver signals which are output from the receiver and outputting signals therefrom and a band pass filter unit for selecting at least one Doppler signal component from the signals output from the signal attenuating unit are included. Also included is a speed computing unit for computing the speed of the moving-target relative to the speed measuring apparatus, based on the Doppler signal component abstracted by the band pass filter unit. | ||||||
| 38 | Ultrasound apparatus and method for amplifying transmit signals | US21083 | 1998-02-10 | US6028484A | 2000-02-22 | Christopher R. Cole; Laurence J. Newell |
| A method and system for amplifying an ultrasonic transmit signal is provided. A first amplifier stage has a first supply voltage input and receives transmit signals. A second amplifier stage has a second supply voltage input and receives transmit signals in parallel with the first amplifier stage. Amplified transmit signals are output from one of the first and second amplifier stages. The supply voltage inputs are supplied with fixed voltages. The first amplifier stage is associated with PW operation and a higher supply voltage than the second amplifier stage. The second amplifier stage is associated with CW operation. | ||||||
| 39 | Personal object detector | US637552 | 1996-04-25 | US5724313A | 1998-03-03 | David Burgess; Lee Felsenstein; Steven E. Saunders |
| A personal object or obstacle detector apparatus comprises a continuous transmission frequency modulation (CTFM) ranging system and an audio output device. The CTFM ranging system transmits a frequency-swept pressure wave, receives a reflected frequency-swept pressure wave from at least one object, and forms an audio signal based upon a frequency difference between the frequency-swept pressure wave and the reflected frequency-swept pressure wave the audio signal having an amplitude dependent upon size of the object. The audio output device produces an acoustic pressure wave in dependence upon the audio signal. In a preferred embodiment, the acoustic pressure wave contains separate tones for each of the objects detected, wherein each tone has a pitch dependent upon the distance from the CTFM ranging system to the corresponding object. Another embodiment utilizes a pair of CTFM ranging systems to produce a stereo auditory map of objects and obstacles. | ||||||
| 40 | US83474186 | 1986-02-28 | US4839039B1 | 1994-02-22 | NATAN E. PARSONS; JOEL S. NOVAK | |
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