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    Efficient smart wideband linear hybrid CMOS RF power amplifier
    71.
    发明授权
    Efficient smart wideband linear hybrid CMOS RF power amplifier 有权

    公开(公告)号：US09742360B2

    公开(公告)日：2017-08-22

    申请号：US15075730

    申请日：2016-03-21

    Applicant: DSP Group Ltd.

    Inventor： Sergey Anderson ,  Udi Suissa

    IPC: H03F1/32 ,  H03F3/193 ,  H04L27/26 ,  H03F3/24 ,  H03F3/45

    CPC classification number: H03F1/3294 ,  H03F3/193 ,  H03F3/245 ,  H03F3/45188 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2201/3215 ,  H04L27/2623

    Abstract: A novel and useful linear, efficient, smart wideband CMOS hybrid power amplifier that combined an analog linear amplification path and a digital power amplification (DPA) path. PA path control logic analyzes the input I and Q signals and determines which amplification paths to steer the input I and Q signals to. The analog linear amplification path comprises digital to analog converters for both I and Q paths and one or more analog linear power amplifiers. The digital power amplification path comprises I and Q up-sampling circuits and I and Q RF DAC circuits (e.g., digital PA circuits). In operation, the PA path control logic compares the I and Q signals to thresholds (which may or may not be different) and based on the comparisons, selects one or more paths for the input I and Q signals. Whether the signals from the analog and digital amplification paths are to be combined or selected (i.e. switched), the PA path control circuit is operative to generate select (switch) control signals which are applied to summer/selector elements which generate the output of the hybrid PA.

    Two port speaker acoustic modulator
    72.
    发明授权
    Two port speaker acoustic modulator 有权

    公开(公告)号：US09736595B2

    公开(公告)日：2017-08-15

    申请号：US15190218

    申请日：2016-06-23

    Applicant: DSP Group LTD.

    Inventor： Ori Elyada

    IPC: H04R19/00 ,  H04R19/02 ,  H04R3/12 ,  H04R1/22 ,  H04R31/00

    CPC classification number: H04R19/02 ,  H04R1/22 ,  H04R3/12 ,  H04R31/00 ,  H04R2217/03

    Abstract: A two-port air pump speaker that includes at least two active, phase-modulated, bi-directional shutters and an ultrasonic pumping chamber having at least two ports; a first port facing towards the listener, the forward port, and a second port facing another direction, the backward port which may be behind an acoustic baffle or inside a speaker enclosure. A two-port speaker with two active steering shutters can create continuous bi-directional airflow which leads to low distortion reproduction of low audio frequencies. The same improved design can be used also for other applications where acoustic modulation is required, especially in ultrasonic frequencies.

    Equalization and power control of bone conduction elements
    73.
    发明授权
    Equalization and power control of bone conduction elements 有权
    骨传导元件的均衡和功率控制

    公开(公告)号：US09596534B2

    公开(公告)日：2017-03-14

    申请号：US14143282

    申请日：2013-12-30

    Applicant: DSP Group

    Inventor： Arie Heiman ,  Moshe Haiut ,  Uri Yehuday

    IPC: H04R1/46 ,  H04R25/00 ,  H04R3/02

    CPC classification number: H04R1/46 ,  H04R3/02 ,  H04R25/407 ,  H04R25/45 ,  H04R25/453 ,  H04R25/505 ,  H04R25/606 ,  H04R2460/03 ,  H04R2460/13

    Abstract: Methods and systems are provided for controlling bone conduction, in which a bone conduction element may be used to output acoustic signals when it is in contact with a user. A bone conduction sensor may also be made in contact with the user, and used to obtain feedback relating to the outputting of the acoustic signals via the bone conduction element. The outputting of the acoustic signals may then be adaptively controlled based on processing of the feedback. The adaptive controlling may comprise adjusting components and/or functions related to or used in the outputting of the acoustic signals. For example, the adaptive controlling may comprise adjusting gain, frequency response, and/or equalization associated with a drive amplifier driving the bone conduction element.

    Abstract translation: 提供了用于控制骨传导的方法和系统，其中当与用户接触时，可以使用骨传导元件来输出声信号。 也可以将骨传导传感器与使用者接触，并且用于获得与通过骨传导元件输出声信号有关的反馈。 然后可以基于反馈的处理自适应地控制声信号的输出。 自适应控制可以包括调整与声信号的输出相关或用于输出声信号的组件和/或功能。 例如，自适应控制可以包括调整与驱动骨传导元件的驱动放大器相关联的增益，频率响应和/或均衡。

    GENERATION OF AUDIO AND ULTRASONIC SIGNALS AND MEASURING ULTRASONIC RESPONSE IN DUAL-MODE MEMS SPEAKER
    74.
    发明申请
    GENERATION OF AUDIO AND ULTRASONIC SIGNALS AND MEASURING ULTRASONIC RESPONSE IN DUAL-MODE MEMS SPEAKER 审中-公开
    音频和超声波信号的生成和测量双模MEMS扬声器中的超声波响应

    公开(公告)号：US20170064457A1

    公开(公告)日：2017-03-02

    申请号：US15244058

    申请日：2016-08-23

    Applicant: DSP GROUP LTD.

    Inventor： Haim Kupershmidt ,  Lior Blanka

    IPC: H04R19/02 ,  B81B3/00

    CPC classification number: H04R19/02 ,  B81B3/0021 ,  B81B2201/0257 ,  B81B2201/0271 ,  H04R17/00 ,  H04R2201/003 ,  H04R2217/03

    Abstract: A MEMS speaker that includes a control unit and multiple MEMS elements that include a membrane positioned in a first plane, a blind that is positioned in a second plane and a shutter that is positioned in a third plane. The control unit is configured to control the multiple MEMS elements to operate in an audio output mode or an ultrasonic output mode. The MEMS speaker is configured, when operating in the ultrasonic output mode, to oscillate at least one of the membrane, blind and shutter thereby generating an ultrasonic signal without audio-modulating the ultrasonic signal. The MEMS speaker is configured, when operating in the audio output mode, to oscillate the membrane thereby generating the ultrasonic signal and oscillate at least one of the shutter and the blind thereby modulating the ultrasonic acoustic signal to generate an audio signal.

    Abstract translation: 一种MEMS扬声器，其包括控制单元和多个MEMS元件，其包括位于第一平面中的膜，位于第二平面中的盲板和位于第三平面中的快门。 控制单元被配置为控制多个MEMS元件在音频输出模式或超声波输出模式下操作。 MEMS扬声器被配置为当以超声波输出模式操作时，振荡膜，盲和快门中的至少一个，从而产生超声波信号而不对超声信号进行音频调制。 当在音频输出模式下工作时，MEMS扬声器配置为振荡膜，从而产生超声波信号并振荡快门和盲人中的至少一个，从而调制超声波声信号以产生音频信号。

    Managing ultra low energy (ULE) devices using a base station capable of entering a no emission mode (NEMO)
    75.
    发明授权
    Managing ultra low energy (ULE) devices using a base station capable of entering a no emission mode (NEMO) 有权
    使用能够进入无发射模式（NEMO）的基站来管理超低能量（ULE）设备

    公开(公告)号：US09565632B2

    公开(公告)日：2017-02-07

    申请号：US14447721

    申请日：2014-07-31

    Applicant: DSP Group LTD.

    Inventor： Otmar Rengert ,  Jochen Kilian

    IPC: H04W52/02

    CPC classification number: H04W52/0219 ,  H04W52/0216 ,  Y02D70/00

    Abstract: A method that includes operating a base station at a first operational mode thereby preventing the base station from a periodically transmitting a beacon; detecting, by the base station, a transmission from a first wireless communication device; determining, by the base station and in response to the transmission from the first wireless communication device, whether to continue operating in the no emission mode or to enter a emission mode during which the base station is allowed to transmit the beacon; and entering the second operational mode, if it is determined to enter the second operational mode, and sending the beacon to the first wireless communication device.

    Abstract translation: 一种方法，其包括以第一操作模式操作基站，从而防止所述基站周期性地发送信标; 由所述基站检测来自第一无线通信设备的传输; 由基站和响应于来自第一无线通信设备的传输确定是否继续以无发射模式操作或进入允许基站发射信标的发射模式; 并且如果确定进入第二操作模式并且将信标发送到第一无线通信设备，则进入第二操作模式。

    WHISPERED SPEECH DETECTION
    76.
    发明申请
    WHISPERED SPEECH DETECTION 审中-公开
    语音检测

    公开(公告)号：US20160360372A1

    公开(公告)日：2016-12-08

    申请号：US15170974

    申请日：2016-06-02

    Applicant: DSP Group LTD.

    Inventor： Yaakov Chen ,  Doron Koren

    IPC: H04W4/02 ,  H04W4/00

    CPC classification number: H04W4/025 ,  H04W4/80

    Abstract: A method for detecting whispered speech of a user of a mobile computerized device, the method comprises: detecting, by the mobile computerized device, whispered speech context; and attempting to detect, by the mobile computerized device and by using whispered speech detection parameters, the whispered speech; and wherein at least one whispered speech detection parameter of the whispered speech detection parameters differs from at least one corresponding non-whispered speech parameter that is used for detecting non-whispered speech.

    Abstract translation: 一种用于检测移动计算机设备的用户的低声语音的方法，所述方法包括：通过所述移动计算机设备检测语音上下文; 并尝试通过移动计算机化设备和使用低音语音检测参数来检测低声语音; 并且其中所述低音语音检测参数的至少一个低声语音检测参数与用于检测非低音语音的至少一个对应的非低音语音参数不同。

    Efficient Smart Wideband Linear Hybrid CMOS RF Power Amplifier
    78.
    发明申请
    Efficient Smart Wideband Linear Hybrid CMOS RF Power Amplifier 有权
    高效智能宽带线性混合CMOS射频功率放大器

    公开(公告)号：US20160276986A1

    公开(公告)日：2016-09-22

    申请号：US15075730

    申请日：2016-03-21

    Applicant: DSP Group Ltd.

    Inventor： Sergey Anderson ,  Udi Suissa

    IPC: H03F1/32 ,  H03F3/21 ,  H04L27/26 ,  H03F3/193

    CPC classification number: H03F1/3294 ,  H03F3/193 ,  H03F3/245 ,  H03F3/45188 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2201/3215 ,  H04L27/2623

    Abstract: A novel and useful linear, efficient, smart wideband CMOS hybrid power amplifier that combined an analog linear amplification path and a digital power amplification (DPA) path. PA path control logic analyzes the input I and Q signals and determines which amplification paths to steer the input I and Q signals to. The analog linear amplification path comprises digital to analog converters for both I and Q paths and one or more analog linear power amplifiers. The digital power amplification path comprises I and Q up-sampling circuits and I and Q RF DAC circuits (e.g., digital PA circuits). In operation, the PA path control logic compares the I and Q signals to thresholds (which may or may not be different) and based on the comparisons, selects one or more paths for the input I and Q signals. Whether the signals from the analog and digital amplification paths are to be combined or selected (i.e. switched), the PA path control circuit is operative to generate select (switch) control signals which are applied to summer/selector elements which generate the output of the hybrid PA.

    Abstract translation: 一种新颖有用的线性，高效智能宽带CMOS混合功率放大器，其组合了模拟线性放大路径和数字功率放大（DPA）路径。 PA路径控制逻辑分析输入I和Q信号，并确定哪些放大路径将输入I和Q信号转向。 模拟线性放大路径包括用于I和Q路径的数模转换器和一个或多个模拟线性功率放大器。 数字功率放大路径包括I和Q上采样电路以及I和Q RF DAC电路（例如，数字PA电路）。 在操作中，PA路径控制逻辑将I和Q信号与阈值进行比较（其可能或可能不同），并且基于比较，为输入I和Q信号选择一个或多个路径。 来自模拟和数字放大路径的信号是否被组合或选择（即切换），PA路径控制电路可操作地产生选择（开关）控制信号，其被施加到加法器/选择器元件，其产生 混合PA。

    Communication system and a method for mitigating leakage signals
    79.
    发明授权
    Communication system and a method for mitigating leakage signals 有权
    通信系统和减轻泄漏信号的方法

    公开(公告)号：US09344142B2

    公开(公告)日：2016-05-17

    申请号：US14569808

    申请日：2014-12-15

    Applicant: DSP Group LTD.

    Inventor： Yaki Abecasis ,  Adir Levi

    IPC: H04B1/525

    CPC classification number: H04B1/525

    Abstract: A communication system that includes a transmit antenna, a radio frequency (RF) phase shifting module, an RF combiner, a first receive antenna and a second receive antenna; wherein the first and second receive antennas are located at a same distance from the transmit antenna; wherein the first and second receive antennas are arranged to receive first and second leakage signals resulting from a transmission of RF radiation by the transmit antenna; wherein the RF phase shifting module is configured to receive signals from the first and second receive antennas, to phase shift signals from at least one of first and second receive antennas to provide intermediate RF signals; wherein the phase shift caused by the RF phase shifting module introduces a destructive phase shift between the first and second leakage signals; wherein the RF combiner is configured to add the intermediate RF signals to provide combined RF signals.

    Abstract translation: 一种通信系统，包括发射天线，射频（RF）相移模块，RF组合器，第一接收天线和第二接收天线; 其中所述第一和第二接收天线位于与所述发射天线相同的距离处; 其中所述第一和第二接收天线被布置成接收由所述发射天线的RF辐射的传输产生的第一和第二泄漏信号; 其中所述RF相移模块被配置为从所述第一和第二接收天线接收信号到来自第一和第二接收天线中的至少一个的相移信号以提供中间RF信号; 其中由所述RF相移模块引起的相移在所述第一和第二泄漏信号之间引入相消相移; 其中所述RF组合器被配置为添加所述中间RF信号以提供组合RF信号。

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