Noise cancellation
    61.
    发明授权

    公开(公告)号:US11120795B2

    公开(公告)日:2021-09-14

    申请号:US16445226

    申请日:2019-06-19

    Applicant: DSP Group Ltd.

    Inventor: Adoram Erell

    Abstract: A method for noise cancellation, the method may include detecting a voice trigger or receiving an indication regarding an occurrence of a voice trigger; searching, based at least on a timing of occurrence of the voice trigger, for at least one of a noise-period and a voice-period; when finding a noise period then updating one or more noise parameters based on one or more features of sensed audio signals received during the noise period; when finding a voice period then updating one or more voice parameters based on one or more features of sensed audio signals received during the voice period; estimating, based on the one or more noise parameters and the one or more voice parameters, a probability that voice is present at one or more subsequent periods; and cancelling noise at the one or more subsequent periods, based on the voice presence probability.

    Proximity based voice activation
    63.
    发明授权

    公开(公告)号:US10733989B2

    公开(公告)日:2020-08-04

    申请号:US15810169

    申请日:2017-11-13

    Applicant: DSP Group Ltd.

    Inventor: Uri Yehuday

    Abstract: A method for proximity-based voice activation, the method may include sensing a voice command, detecting whether a person outputted the voice command while being in proximity to a voice activated device; determining whether to execute, by the voice activated device, the voice command based, at least in part, on the determination whether the person outputted the voice command while being in proximity to the voice activated device; and executing the voice command when determining to execute the voice command.

    Dynamic control for wireless devices

    公开(公告)号:US10575330B2

    公开(公告)日:2020-02-25

    申请号:US15420106

    申请日:2017-01-31

    Abstract: A method for determining an attribute of a carrier sense multiple access with collision avoidance (CSMA/CA) scheme, the method may include receiving, by an interface of a wireless communication device, an input signal; calculating, by a processor of the wireless communication device, a strength of the input signal; and determining, by the processor, the attribute of the (CSMA/CA) scheme in response to the strength of the input signal.

    Voice command conversion
    65.
    发明授权

    公开(公告)号:US10109182B1

    公开(公告)日:2018-10-23

    申请号:US15652338

    申请日:2017-07-18

    Applicant: DSP Group Ltd.

    Inventor: Uri Yehuday

    Abstract: A method and a system for voice command conversion, the system may include one or more microphones for sensing a voice command for controlling an acoustically controlled device; one or more speech recognition units for identifying the voice command; an ultrasonic command generator for generating an ultrasonic command that represents the voice command; and one or more speakers for transmitting the ultrasonic command to the acoustically controlled device.

    Pico-speaker acoustic modulator
    66.
    发明授权

    公开(公告)号:US09774959B2

    公开(公告)日:2017-09-26

    申请号:US15075246

    申请日:2016-03-21

    Applicant: DSP Group LTD.

    Inventor: Haim Kupershmidt

    CPC classification number: H04R19/02 H04R17/00 H04R2201/003 H04R2217/03

    Abstract: A MEMS speaker that may include a membrane positioned in a first plane, wherein the membrane may be configured to oscillate at a first frequency thereby generating an ultrasonic acoustic signal; and an acoustic modulator that may include a blind and a shutter; wherein the blind may be positioned in a second plane; wherein the shutter may be positioned in a third plane; wherein the first plane, the second plane and the third plane may be substantially separated from each other; and wherein the acoustic modulator may be configured to (a) receive or generate a shutter control signal and a blind control signal, and (b) modulate, in response to the shutter control signal and the blind control signal, the ultrasonic acoustic signal such that an audio signal may be generated.

    Beacon jitter prediction for wireless local area network (LAN) devices

    公开(公告)号:US09681373B2

    公开(公告)日:2017-06-13

    申请号:US14298987

    申请日:2014-06-09

    Applicant: DSP Group LTD.

    Abstract: A method for activating a wireless communication device, the method may include receiving, by the wireless communication device, a sequence of periodic transmissions; estimating, for each periodic transmission of the sequence of periodic transmissions and before a reception of the periodic transmission, an expected time of arrival of the periodic transmission; calculating, for each periodic transmission, a timing difference attribute that is responsive to at least a difference between a timing of arrival of the periodic transmission and an expected time of arrival of the periodic transmission; selecting a selected periodic transmission out of the sequence of periodic transmissions, wherein the selected periodic transmission is associated with a smallest timing difference attribute out of the timing difference attributes associated with the periodic transmissions of the sequence of periodic transmissions; estimating, before a reception of a future periodic transmission that does not belong to the sequence of periodic transmissions, an estimated time of arrival of the future periodic transmission in response to the selecting of the selected periodic transmission and a periodic transmission period; determining a wakening time for wakening the wireless communication device in response to the estimated time of arrival of the future periodic transmission; and wakening the wireless communication device at the wakening time and searching for the future periodic transmission.

    Energy efficient charge reuse in driving capacitive loads

    公开(公告)号:US09648417B2

    公开(公告)日:2017-05-09

    申请号:US15072428

    申请日:2016-03-17

    Applicant: DSP Group LTD.

    CPC classification number: H04R3/00 H01L41/042 H04R3/005 H04R19/02 H04R2201/003

    Abstract: A method of charge reuse, the method may include repeating the steps of: electrically coupling a first group of capacitive loads to a second group of capacitive loads; wherein the capacitive loads of the first group and of the second group are Microelectromechanical systems (MEMS) capacitive loads or Nanoelectromechanical systems (NEMS) capacitive loads; charging the second group with a first charge provided from the first group; electrically disconnecting the first group from the second group; operating the second group while using the first charge; electrically coupling the first group to the second group; charging the first group with a second charge provided from the second group; electrically disconnecting the first group from the second group; and operating the first group while using the second charge.

    Speech intelligibility detection
    70.
    发明授权
    Speech intelligibility detection 有权
    语音清晰度检测

    公开(公告)号:US09564145B2

    公开(公告)日:2017-02-07

    申请号:US14318705

    申请日:2014-06-30

    Applicant: DSP Group LTD.

    Inventor: Yaakov Chen

    Abstract: Methods and systems are provided for enhancing speech intelligibility in electronic devices. During outputting of acoustic signal via an electronic device, measurement of forces applied by user of the electronic device against the device (or enclosure thereof) may be obtained. The force measurements may be used to assess and/or estimate the listening intelligibility experienced by the user. Further, the force measurements may be used to control or adjust a listening intelligibility stage applied during generation and/or processing of the acoustic signals that are outputted via the electronic device. In some instances, an audio input, corresponding to ambient noise affecting intelligibility, may be obtained, and may be used to control or assist in controlling the listening intelligibility stage.

    Abstract translation: 提供了用于增强电子设备中的语音清晰度的方法和系统。 在通过电子设备输出声信号期间,可以获得对电子设备的用户施加的装置(或其外壳)施加的力的测量。 力测量可以用于评估和/或估计用户经历的听觉清晰度。 此外,力测量可以用于控制或调整在通过电子设备输出的声信号的生成和/或处理期间应用的聆听清晰度级。 在一些情况下,可以获得对应于影响可懂度的环境噪声的音频输入,并且可以用于控制或协助控制听觉清晰度阶段。

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