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1. 发明授权

US11366209B2 Method for determining change in distance, location prompting method and apparatus and system thereof 有权
公开(公告)号：US11366209B2
公开(公告)日：2022-06-21
申请号：US17344476
申请日：2021-06-10
申请人： ADVANCED NEW TECHNOLOGIES CO., LTD.
发明人： Nan Wang , Qiang He , Zhijun Du
IPC分类号： G01S11/14 , G01S3/808 , G01S5/22 , G01S5/30 , G01S15/34
摘要： A method for determining a change in a distance, a location prompting method and an apparatus and a system thereof are provided. The method includes: sending, by a receiving terminal, a paring request to a server for the server to forward the paring request to a transmitting terminal, and to allocate a frequency band for the receiving terminal and the transmitting terminal after the transmitting terminal accepts the paring request; acquiring, by the receiving terminal, an acoustic wave signal of a frequency sent by the transmitting terminal, wherein the frequency is determined by the transmitting terminal based on the allocated frequency band; determining, by the receiving terminal, a change in the acquired acoustic wave signal; and determining, by the receiving terminal, a change in a distance between the transmitting terminal and the receiving terminal according to the change in the acquired acoustic wave signal.

2. 发明申请

US20220171042A1 ACOUSTIC DISTANCE RANGING SYSTEM 有权
公开(公告)号：US20220171042A1
公开(公告)日：2022-06-02
申请号：US17457139
申请日：2021-12-01
申请人： Shure Acquisition Holdings, Inc.
发明人： David Grant Cason , Mark Gilbert
IPC分类号： G01S7/536 , G01S15/34
摘要： A wireless audio system configured to perform an acoustic ranging operation is disclosed. The audio system comprises an audio transmitter, and audio receiver, and is configured to determine a distance between the audio transmitter and the audio receiver.

3. 发明授权

US10802142B2 Using ultrasound to detect an environment of an electronic device 有权
公开(公告)号：US10802142B2
公开(公告)日：2020-10-13
申请号：US15917512
申请日：2018-03-09
申请人： Samsung Electronics Company, Ltd.
发明人： Philipp Schoessler , Bogdana Rakova
IPC分类号： G01S15/89 , G01S15/04 , G01S15/06 , G01S7/52 , H04M1/725 , G01S7/539 , G01S15/34
摘要： In one embodiment, a method includes transmitting, from a first transducer of an electronic device, a first audio signal to a surface near the electronic device. The first audio signal is generated based on a frequency sweep across a range of frequencies. The method also includes receiving, at a second transducer of the electronic device, a second audio signal that is at least partly reflected off the surface. The method then determines an attribute of the surface based on the received second audio signal.

4. 发明授权

US10027785B2 Method for switching screen state of terminal, terminal thereof, and computer-readable medium thereof 有权
公开(公告)号：US10027785B2
公开(公告)日：2018-07-17
申请号：US15629765
申请日：2017-06-22
申请人： Beijing Xiaomi Mobile Software Co., Ltd.
发明人： Chiafu Yen , Peng Zhang , Penglong Hu , Dawei Xiong
IPC分类号： H04M1/725 , H04W52/02 , H04B17/23 , H04M1/22 , G01S15/08 , G01S7/539 , G01S15/34 , G01S15/42 , G01S15/46 , H03K17/945 , H04M1/02 , G09G5/10
摘要： A method for switching a screen state, a terminal, and computer-readable medium are provided. The method includes: transmitting a transmission sound wave when it is detected that the screen state of the terminal is in a light-on state during a voice communication session, the transmission sound wave being a sound wave of a pre-defined frequency; determining a target detection region when a target receiving sound wave is received through a plurality of pre-installed sound wave receiving devices, the target receiving sound wave being formed by reflecting the transmission sound wave by a target object; and switching the screen state of the terminal from the light-on state into a light-off state when it is determined that the target object is located in the target detection region.

5. 发明授权

US09696423B2 Method for improving performance of a Sodar system 有权
公开(公告)号：US09696423B2
公开(公告)日：2017-07-04
申请号：US14432450
申请日：2013-10-02
申请人： Andrew Louis Martin
发明人： Andrew Louis Martin
IPC分类号： G01S15/88 , G01S15/34 , G01S7/52 , G01S7/534 , G01S7/536 , G01S15/58
CPC分类号： G01S15/885 , G01S7/52003 , G01S7/534 , G01S7/536 , G01S15/34 , G01S15/586
摘要： A method is disclosed for improving performance of a Sodar system adapted to locate discontinuities in the atmosphere by transmitting pulse compression signals such as plural acoustic chirps. The method comprises transmitting the acoustic chirps, receiving acoustic echoes of the chirps, and processing the acoustic echoes to provide an indication of the discontinuities, wherein the processing includes correcting range or resolution error associated with the acoustic echoes.

6. 发明授权

US6011754A Personal object detector with enhanced stereo imaging capability 失效
标题翻译：具有增强的立体成像能力的个人物体探测器
公开(公告)号：US6011754A
公开(公告)日：2000-01-04
申请号：US33211
申请日：1998-03-02
申请人： David Burgess , Lee Felsenstein , Steven E. Saunders
发明人： David Burgess , Lee Felsenstein , Steven E. Saunders
IPC分类号： A61H3/06 , G01S7/521 , G01S7/534 , G01S15/32 , G01S15/34 , G01S15/87 , G01S15/88 , G01S15/93
CPC分类号： G01S15/34 , A61H3/061 , G01S15/88 , G01S7/521 , G01S7/534 , G01S15/87 , G01S15/93 , H04R5/033 , Y10S367/91
摘要： A personal object or obstacle detector apparatus with enhanced stereo imaging capability includes a sonar system having dual receivers with field lobes positioned based on psychoacoustic considerations such as interaural intensity difference (IID) and interaural time difference (ITD). Receiver field pattern shapes and directions are selected to match the natural IID and ITD associated with human hearing. In one embodiment, dual receivers are used with a common transmitter while another embodiment utilizes two transmitter/receiver pairs with the transmitter and receiver collocated.
摘要翻译：具有增强的立体成像能力的个人物体或障碍物检测器装置包括具有双接收器的声纳系统，所述双接收器具有基于诸如颅内强度差异（IID）和心律时间差（ITD）的心理声学考虑而定位的视野瓣。接收器场图案形状和方向被选择以匹配与人类听觉相关联的自然IID和ITD。在一个实施例中，双接收机与公共发射机一起使用，而另一个实施例利用与发射机和接收机并置的两个发射机/接收机对。

7. 发明授权

US4939699A Sonar system 失效
标题翻译：声纳系统
公开(公告)号：US4939699A
公开(公告)日：1990-07-03
申请号：US600701
申请日：1966-12-08
申请人： Francis J. Murphree , Henry L. Warner , Edward G. McLeroy
发明人： Francis J. Murphree , Henry L. Warner , Edward G. McLeroy
IPC分类号： G01S15/04 , G01S15/34
CPC分类号： G01S15/34 , G01S15/04
摘要： A sonar system having a sonar transmitter which is programmed to broadcastwo sets of several increasing frequency signals, with the frequency gap between each set thereof sufficient to cause them to distinguish between deep and shallow water targets, respectively. A heterodyne receiver receives target echoes of said sets of several frequency signals and converts them to two sets of identical frequency signals which are then readout as a single continuous target display signal.
摘要翻译：具有声纳发射机的声纳系统被编程为广播两组几个增加的频率信号，其中每组之间的频率间隙足以使它们分别区分深浅水域目标。外差接收器接收所述几组频率信号的目标回波，并将它们转换成两组相同的频率信号，然后将其作为单个连续目标显示信号读出。

8. 发明授权

US4320765A Doppler pseudorandom noise velocimeters 失效
标题翻译：多普勒伪随机噪声速度计
公开(公告)号：US4320765A
公开(公告)日：1982-03-23
申请号：US112528
申请日：1980-01-16
申请人： Dominique Cathignol , Claude Fourcade , Jean-Yves Chapelon
发明人： Dominique Cathignol , Claude Fourcade , Jean-Yves Chapelon
IPC分类号： A61B8/06 , G01F1/66 , G01P5/24 , G01S15/34 , G01S15/58 , A61B10/00
CPC分类号： G01P5/244 , A61B8/06 , G01F1/663 , G01S15/34 , G01S15/586
摘要： This invention is directed to improved pseudorandom noise velocimeters and methods therefor, using the Doppler effect, to enable the external measurement of the speed of a moving target within a fixed conveying medium. In accordance with a preferred embodiment of the present invention a continuous pseudorandom ultrasonic noise signal formed by a repetitive code C having n different elementary segments S is radiated. Correlation between a received echo and the delayed radiated signal is accomplished by proceeding successively for each elementary segment, using a different measuring band, for a period corresponding to the period of each segment. The correlation values thus obtained are then stored and thereafter a Doppler low frequency curve is reconstituted by regrouping the correlation values corresponding to the different elementary segments of the repetitive code.
摘要翻译：本发明涉及使用多普勒效应的改进的伪随机噪声速度计及其方法，以便能够外部测量固定传送介质内的移动目标的速度。根据本发明的优选实施例，辐射由具有n个不同基本段S的重复码C形成的连续伪随机超声波噪声信号。接收到的回波和延迟的辐射信号之间的相关性是通过使用不同的测量带在每个段的周期相应的时段内针对每个基本段连续进行的。然后存储如此获得的相关值，然后通过重新分组对应于重复码的不同基本段的相关值来重构多普勒低频曲线。

9. 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。

10. 发明授权

US3431551A Depth measuring ultrasonic transceiver 失效
标题翻译：深度测量超声波收发器
公开(公告)号：US3431551A
公开(公告)日：1969-03-04
申请号：US3431551D
申请日：1967-10-02
申请人： SOUTHWEST RES INST
发明人： ROLLWITZ WILLIAM L , BENSON HARVEY S
IPC分类号： G01B17/00 , G01S15/34 , G01S9/66
CPC分类号： G01S15/34 , G01B17/00

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