利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

95 条记录 (耗时 0.02 秒)

    Motion detection using communication channel carrier signal
    42.
    发明授权
    Motion detection using communication channel carrier signal 有权

    公开(公告)号：US11994573B1

    公开(公告)日：2024-05-28

    申请号：US18490555

    申请日：2023-10-19

    申请人： Brent De Graaf

    发明人： Brent De Graaf

    IPC分类号： G01S15/62 ,  G01S7/534 ,  G01S11/06

    CPC分类号： G01S11/06

    摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for motion detection using a communication channel carrier signal. In one aspect, a method includes, for each of one or more communication channels, wherein each communication channel has a center frequency that is different from the center frequency of each other communication channel: determining mean power levels from consecutive power samples at the center frequency, determining a difference between the mean power levels of two consecutive power samples at the center frequency, and determining whether physical motion is occurring in a monitored area based on the difference between the mean power levels.

    SOUND WAVE PROCESSING DEVICE AND ULTRASONIC SYSTEM
    43.
    发明公开
    SOUND WAVE PROCESSING DEVICE AND ULTRASONIC SYSTEM 审中-公开

    公开(公告)号：US20240111047A1

    公开(公告)日：2024-04-04

    申请号：US18534356

    申请日：2023-12-08

    申请人： Rohm Co., Ltd.

    发明人： Takahiro Tsuboi

    IPC分类号： G01S15/931 ,  G01S7/534

    CPC分类号： G01S15/931 ,  G01S7/534

    摘要： A sound wave processing device includes a transmission signal generation unit that generates a transmission signal for transmitting a sound wave, a received wave signal output unit that outputs a received wave signal based on receiving the sound wave, a correlation-convolution integral processing unit that performs correlation-convolution integral processing in parallel for each reference wave data, on the basis of the received wave signal and a plurality of reference wave data, and an own wave identification unit that determines whether or not the received sound wave is own wave, which is a reflected wave of the sound wave transmitted by the transmission signal generation unit, on the basis of a correlation-convolution integral value output from the correlation-convolution integral processing unit.

    OBJECT DETECTION DEVICE
    46.
    发明公开
    OBJECT DETECTION DEVICE 审中-公开

    公开(公告)号：US20230243945A1

    公开(公告)日：2023-08-03

    申请号：US18004642

    申请日：2021-06-25

    申请人： DENSO CORPORATION

    发明人： Syoya ISHIDA ,  Yu KOYAMA ,  Tetsuya AOYAMA

    IPC分类号： G01S7/52 ,  G01S7/534

    CPC分类号： G01S7/52006 ,  G01S7/534 ,  G01S2007/52009

    摘要： An object detection device includes a transceiver configured to transmit/receive an ultrasonic wave; a drive signal generation unit configured to generate a drive signal for driving the transceiver; a transmitter circuit configured to cause the transceiver to transmit a probe wave, which is an ultrasonic wave, by driving the transceiver based on the drive signal; and a receiver circuit configured to generate a reception signal corresponding to a reception result of the ultrasonic wave of the transceiver, wherein the drive signal generation unit is configured to generate the drive signal so that frequency of the probe wave changes over time. The device further includes: a voltage measurement unit configured to measure a voltage signal generated in the transceiver while the transceiver transmits the probe wave with frequency changing over time; and a state determination unit configured to make a state determination regarding the transceiver based on the voltage signal.

    Using pseudorandom signals transmitted from distributed sources in ranging operations
    47.
    发明授权
    Using pseudorandom signals transmitted from distributed sources in ranging operations 有权

    公开(公告)号：US11366221B1

    公开(公告)日：2022-06-21

    申请号：US16174020

    申请日：2018-10-29

    申请人： Amazon Technologies, Inc.

    发明人： Carlos Parodi

    IPC分类号： G01S15/32 ,  G01S15/93 ,  G06F7/58 ,  G01S7/534

    摘要： Ranging systems operate based on the transmission and receipt of pseudorandom sequences. Pseudorandom sequences may be generated and assigned to specific transmitters, which may operate simultaneously to transmit signals including the pseudorandom sequences. A receiver may be programmed to recognize the specific pseudorandom sequences within data captured by the receiver, and to associate the pseudorandom sequences with the transmitters that transmitted them. Upon identifying the pseudorandom sequences, the receiver or one or more associated components may calculate times of flight of signals transmitted by the respective transmitters. Such times of flight may be used to calculate distances to one or more objects from which the signals were reflected.

    TOUCHLESS INTERACTION USING AUDIO COMPONENTS
    48.
    发明申请
    TOUCHLESS INTERACTION USING AUDIO COMPONENTS 有权

    公开(公告)号：US20220129092A1

    公开(公告)日：2022-04-28

    申请号：US17436203

    申请日：2020-03-05

    申请人： Elliptic Laboratories AS

    发明人： Espen Klovning ,  John Magne Helgesen Røe ,  Thomas Kristofferson Børstad

    IPC分类号： G06F3/043 ,  G10K11/18 ,  G10K15/00 ,  G01S7/534

    摘要： The present teachings relate to an electronic device comprising: a first module for generating an audio signal; a second module for generating an ultrasonic signal; a mixer for generating a combined signal; a transmitter for outputting an acoustic signal dependent upon the combined signal; and, a processing means for controlling the ultrasonic signal; wherein, in response to receiving a first instruction signal for initiating the ultrasonic signal, the processing means is configured to increase the amount of the ultrasonic signal in the combined signal from an essentially zero value to a predetermined value over a predetermined enable time-period. The present teachings also relate to an electronic device configured to decrease the amount of the ultrasonic signal in the combined signal from an essentially zero value to a predetermined value over a predetermined disable time-period, and to an electronic device configured to remove the audio signal from the combined signal whilst preventing pop-noise, and to an electronic device capable of replacing the ultrasonic signal whilst minimizing the processing time. The present teachings further relate to a method for reducing the occurrence of pop noise in an acoustic signal associated with: initiating the ultrasonic signal in the combined signal, terminating the ultrasonic signal in the combined signal, terminating the audio signal in the combined signal, and replacing the ultrasonic signal in the combined signal. The present teachings also relate to a computer software product for implementing any of the method steps disclosed herein, and to a computer storage medium storing the computer software herein disclosed.

    ACOUSTIC TRANSMITTING ANTENNA
    49.
    发明申请
    ACOUSTIC TRANSMITTING ANTENNA 有权

    公开(公告)号：US20210389440A1

    公开(公告)日：2021-12-16

    申请号：US17287097

    申请日：2019-10-16

    申请人： THALES

    发明人： Yves LAGIER ,  Raphaël LARDAT ,  Jérémie TODESCO

    IPC分类号： G01S7/534 ,  G01S7/52 ,  B06B1/06

    摘要： An acoustic antenna intended to equip a sonar, the antenna being centred around a first longitudinal axis and includes at least a first assembly of at least two transducers and a second assembly of at least two transducers stacked along the longitudinal axis, each transducer having at least a radial mode having a resonance frequency, referred to as the radial frequency, and a cavity mode having a resonance frequency, referred to as the cavity frequency, wherein the transducers of the first assembly are configured to transmit sound waves in a first continuous frequency band extending at least between the cavity and radial frequencies of the transducers of the first assembly and the transducers of the second assembly are configured to transmit sound waves in a second continuous frequency band extending at least between the cavity and radial frequencies of the transducers of the second assembly, in that the cavity frequency of a transducer of the second assembly is equal to the radial frequency of a transducer of the first assembly plus or minus (fr1−fc1)/10, fr1 being the radial frequency of the transducer of the first assembly and fc1 being the cavity frequency of the transducers of the first assembly and wherein the transducers of the second assembly are positioned between the transducers of the first assembly and in that no transducer of the first assembly is positioned between the transducers of the second assembly.

    Object movement detection based on ultrasonic sensor data analysis
    50.
    发明授权
    Object movement detection based on ultrasonic sensor data analysis 有权

    公开(公告)号：US11156714B2

    公开(公告)日：2021-10-26

    申请号：US16790348

    申请日：2020-02-13

    申请人： TYMPHANY ACOUSTIC TECHNOLOGY (HUIZHOU) CO., LTD.

    发明人： Alexey Abdulov

    IPC分类号： G01S15/62 ,  G01S15/931 ,  G01S7/534

    摘要： Methods and devices for detecting movement of an object includes: receiving a first set of output signal values and a second set of output signal values from a sound wave receiver, each output signal value in the first set and the second set being representative of amplitude of an acoustic signal reflected from the object; determining, based on the received first set and second set, a difference set including one or more difference values, each of the one or more difference values being representative of a difference between a first output signal value in the first set and a second output signal value in the second set; determining whether the difference set satisfies a predetermined condition based on whether each difference value of the difference set has a magnitude exceeding a predetermined threshold; and outputting a motion detection signal if the difference set satisfies the predetermined condition.