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    • 1. 发明授权
      US08908475B2 Acoustic positioning system and method 有权
    • Acoustic positioning system and method
    • 声学定位系统及方法
    • US08908475B2
    • 2014-12-09
    • US14342940
    • 2012-09-06
    • Fabien Napolitano , Sebastien Pennec , Didier Charlot
    • Fabien Napolitano , Sebastien Pennec , Didier Charlot
    • G01S1/80 , G01S1/76 , G01S5/22
    • G01S1/80 , G01S1/763 , G01S1/807 , G01S5/22
    • An acoustic positioning device includes an acoustic emitter and receiver. The device emits a sequence of at least one first acoustic signal (S1) and one second acoustic signal (S2), separated by a time interval T, and to receive and measure the arrival phase φ1 of S1 and the arrival phase φ2 of S2. The device measures a relative displacement between the acoustic emitter and the acoustic receiver and determines the approximate difference (R2−R1)AUX between the distance R1 traveled by S1 between the acoustic emitter and receiver, and the distance R2 traveled by S2 between the acoustic emitter and the acoustic receiver, and calculates the relative displacement (R2−R1) between the acoustic emitter and the acoustic receiver as a function of the approximate difference (R2−R1)AUX, of the time interval T and of the arrival phases φ1, φ2 respectively of S1 and of S2.
    • 声学定位装置包括声发射器和接收器。 该装置发射由时间间隔T隔开的至少一个第一声信号（S1）和一个第二声信号（S2）的序列，并且接收和测量S1的到达相位＆1和到达相位＆phgr; 2的S2。 该装置测量声发射器和声接收器之间的相对位移，并且确定在声发射器和接收器之间由S1行进的距离R1与由声发射器之间的S2行进的距离R2之间的近似差（R2-R1） 和声学接收器，并且计算声发射器和声接收器之间的相对位移（R2-R1）作为时间间隔T和到达阶段的近似差（R2-R1）AUX的函数 ，和S1分别为S1和S2。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 4. 发明申请
      US20150261495A1 Using Ultrasound to Improve IMU-based Gesture Detection 有权
    • Using Ultrasound to Improve IMU-based Gesture Detection
    • 使用超声波改善基于IMU的手势检测
    • US20150261495A1
    • 2015-09-17
    • US14230038
    • 2014-03-31
    • Google Inc.
    • Boris Smus , Christian Plagemann , Ankit Mohan , Ryan Michael Rifkin
    • G06F3/16 , G06F3/01
    • G06F3/167 , G01S1/763 , G01S11/14 , G06F3/017
    • The present disclosure provides techniques for improving IMU-based gesture detection by a device using ultrasonic Doppler. A method may include detecting the onset of a gesture at a first device based on motion data obtained from an IMU of the first device. An indication of the detection of the onset of the gesture may be provided to a second device. Next, a first audio signal may be received from the second device. As a result, the gesture may be identified based on the motion data and the received first audio signal. In some cases, a first token encoded within the first audio signal may be decoded and the first token may be provided to a third coordinating device. A confirmation message may be received from the third coordinating device based on the first token provided and identifying the gesture may be further based on the confirmation message.
    • 本公开提供了一种用于通过使用超声波多普勒的装置改进基于IMU的手势检测的技术。 一种方法可以包括基于从第一设备的IMU获得的运动数据来检测在第一设备处的手势的开始。 可以向第二设备提供对手势开始的检测的指示。 接下来，可以从第二设备接收第一音频信号。 结果，可以基于运动数据和接收到的第一音频信号来识别手势。 在一些情况下，可以解码在第一音频信号内编码的第一令牌，并且可以将第一令牌提供给第三协调装置。 可以基于提供的第一令牌从第三协调设备接收确认消息，并且可以基于确认消息进一步识别手势。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 5. 发明申请
      US20140204715A1 ACOUSTIC POSITIONING SYSTEM AND METHOD 有权
    • ACOUSTIC POSITIONING SYSTEM AND METHOD
    • 声学定位系统和方法
    • US20140204715A1
    • 2014-07-24
    • US14342940
    • 2012-09-06
    • Fabien Napolitano , Sebastien Pennec , Didier Charlot
    • Fabien Napolitano , Sebastien Pennec , Didier Charlot
    • G01S1/80 , G01S5/22
    • G01S1/80 , G01S1/763 , G01S1/807 , G01S5/22
    • An acoustic positioning device includes an acoustic emitter and receiver. The device emits a sequence of at least one first acoustic signal (S1) and one second acoustic signal (S2), separated by a time interval T, and to receive and measure the arrival phase φ1 of S1 and the arrival phase φ2 of S2. The device measures a relative displacement between the acoustic emitter and the acoustic receiver and determines the approximate difference (R2−R1)AUX between the distance R1 travelled by S1 between the acoustic emitter and receiver, and the distance R2 travelled by S2 between the acoustic emitter and the acoustic receiver, and calculates the relative displacement (R2−R1) between the acoustic emitter and the acoustic receiver as a function of the approximate difference (R2−R1)AUX, of the time interval T and of the arrival phases φ1, φ2 respectively of S1 and of S2.
    • 声学定位装置包括声发射器和接收器。 该装置发射由时间间隔T隔开的至少一个第一声信号（S1）和一个第二声信号（S2）的序列，并且接收和测量S1的到达相位＆1和到达相位＆phgr; 2的S2。 该装置测量声发射器和声接收器之间的相对位移，并且确定在声发射器和接收器之间由S1行进的距离R1与由声发射器之间的S2行进的距离R2之间的近似差（R2-R1） 和声学接收器，并且计算声发射器和声接收器之间的相对位移（R2-R1）作为时间间隔T和到达阶段的近似差（R2-R1）AUX的函数 ，和S1分别为S1和S2。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 9. 发明授权
      US3629795A Underwater pressure pulse detector 失效
    • Underwater pressure pulse detector
    • 水下脉冲检测器
    • US3629795A
    • 1971-12-21
    • US3629795D
    • 1962-08-24
    • DU PONT
    • BOWYER KERN M
    • G01S1/76 , G01S3/802 , H04B11/00
    • G01S1/763 , G01S3/8022
    • 1. An assembly for automatically detecting a pair of pressure pulse sequences emanated from a longitudinal array of spaced explosive elements detonated in the ocean in a manner such as to form two parallel detonation trains travelling in opposite directions relative to each other, the periods of each of the pair of pressure pulse sequences received at any angle from said array varying according to said angle and being the same at a normal angle to said array, the periods of pressure pulse sequences expected to be received at different angles from said array being known, and the sum of the periods of a pair of pressure pulse sequences received at any angle from said array being equal to 2To, where To is the period of the pulse sequences emanating in a normal direction from said array, which assembly comprises A. A PRESSURE TRANSDUCER; B. AN AMPLIFIER WITH AUTOMATIC GAIN CONTROL COUPLED TO SAID PRESSURE TRANSDUCER; C. A FREQUENCY SEPARATOR COUPLED TO SAID AMPLIFIER AND HAVING N FREQUENCY-BAND ELEMENTS EACH OF WHICH PASSES A NARROW BAND OF FREQUENCIES, SAID FREQUENCY-BAND ELEMENTS COLLECTIVELY PASSING ALL FREQUENCIES EXPECTED AT ALL ANGLES FROM SAID ARRAY AND BEING SO ARRANGED THAT THEIR CENTER FREQUENCEIES PROVIDE EQUAL PERIOD INCREMENTS BETWEEN SUCCESSIVE ELEMENTS; D. AN INTEGRATING DETECTOR COUPLED TO EACH OF SAID FREQUENCYBAND ELEMENTS; E. A TRIGGERING DEVICE COUPLED TO EACH INTEGRATING DETECTOR; F. A SORTING CIRCUIT COUPLED TO SAID TRIGGERING DEVICES, SAID SORTING CIRCUIT HAVING A PLURALITY OF CONDUCTORS ADAPTED TO CARRY AN OUTPUT SIGNAL THEREFROM WHEN SIGNALS ARE RECEIVED FROM AT LEAST TWO DIFFERENT TRIGGERING DEVICES, THE NUMBER OF SAID CONDUCTORS BEING EQUAL TO 2N-3, N BEING AS DEFINED ABOVE, ONE OF SAID CONDUCTORS CARRYING AN OUTPUT SIGNAL WHEN SIGNALS HAVE BEEN PASSED BY TWO FREQUENCY-BAND ELEMENTS WHOSE CENTER FREQUENCIES CORRESPOND TO PERIODS WHICH ADD UP TO ONE SUM, ANOTHER TO A DIFFERENT SUM, ETC., FOR ALL POSSIBLE SUMS; G. A LOGIC CIRCUIT COUPLED TO SAID SORTING CIRCUIT, SAID LOGIC CIRCUIT BEING ADAPTED TO PRODUCE AN ELECTRICAL IMPULSE SIGNAL UPON RECEPTION OF (1) AN OUTPUT SIGNAL FROM AN OUTPUT CONDUCTOR CARRYING A SIGNAL WHEN SIGNALS HAVE BEEN PASSED BY TWO FREQUENCYBAND ELEMENTS WHOSE CENTER FREQUENCIES CORRESPOND TO PERIODS WHICH ADD UP TO 2To and (2) signals from no other output conductors.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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