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公开(公告)号：US20160286319A1
公开(公告)日：2016-09-29
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.
Abstract translation: MEMS扬声器，其可以包括位于第一平面中的膜，其中所述膜可以被配置为以第一频率振荡，从而产生超声波声信号; 以及可包括盲和快门的声调制器; 其中所述盲板可以定位在第二平面中; 其中所述挡板可以定位在第三平面中; 其中所述第一平面，所述第二平面和所述第三平面可以基本上彼此分离; 并且其中所述声调制器可以被配置为（a）接收或产生快门控制信号和盲控制信号，以及（b）响应于所述快门控制信号和所述盲控制信号调制所述超声声信号，使得 可以产生音频信号。
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公开(公告)号：US20160277832A1
公开(公告)日：2016-09-22
申请号：US15072428
申请日：2016-03-17
Applicant: DSP Group LTD.
Inventor： Haim Kupershmidt , Moti Margalit
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.
Abstract translation: 一种电荷重用的方法，所述方法可以包括重复以下步骤：将第一组电容性负载电耦合到第二组容性负载; 其中第一组和第二组的电容性负载是微机电系统（MEMS）电容性负载或纳米机电系统（NEMS）容性负载; 以第一组提供的第一电荷对第二组充电; 将第一组与第二组电气断开连接; 在使用第一次收费时操作第二组; 将第一组电耦合到第二组; 以第二组提供的第二电荷对第一组充电; 将第一组与第二组电气断开连接; 并在使用第二次充电时操作第一组。
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公开(公告)号：US20150333739A1
公开(公告)日：2015-11-19
申请号：US14697644
申请日：2015-04-28
Applicant: DSP Group LTD.
Inventor： Assaf Ganor
CPC classification number: H03K19/018507 , H03K3/012 , H03K3/013 , H03K3/037 , H03K5/00 , H03K19/20 , H03K2005/00013
Abstract: A scheme is described that provides for a low latency, glitch free chip interface that does not require a clock. This invention handles input transitions that are skewed and also input transitions that are momentary. A change in an input state initiates a pulse that propagates through the system and samples the new input state after a delay. If there is a difference between the sampled input state and the present input state, then a new pulse is initiated in order to avoid any illegal transitions at the output.
Abstract translation: 描述了一种提供不需要时钟的低延迟，无故障芯片接口的方案。 本发明处理倾斜的输入转换以及瞬时的输入转换。 输入状态的改变会启动一个脉冲，通过系统进行传播，并在延迟后采样新的输入状态。 如果采样输入状态和当前输入状态之间存在差异，则启动新的脉冲，以避免输出端的任何非法转换。
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公开(公告)号：US20150249466A1
公开(公告)日：2015-09-03
申请号：US14630817
申请日：2015-02-25
Applicant: DSP Group LTD.
Inventor： Ori Elyada
Abstract: A digital to analog converter that may include a digital gain block; an analog gain block; a digital to analog conversion (DAC) block and a controller that is configured to: determine a digital gain factor, selected out of multiple digital gain factors, of the digital gain block and an analog gain factor, selected out of multiple analog gain factors of the analog gain block; wherein the DAC block is preceded by the digital gain block and is followed by the analog gain block; wherein the digital gain block is configured to multiply a digital input signal by the digital gain factor to provide an intermediate digital signal; wherein the DAC block is configured to convert the intermediate digital signal to a converted analog signal; and wherein the analog gain block is configured to multiply the converted analog signal by the analog gain factor to provide an output signal; wherein an increment of the analog gain factor results in a decrement of the digital gain factor.
Abstract translation: 可以包括数字增益块的数模转换器; 模拟增益块 数模转换（DAC）块和控制器，其被配置为：确定数字增益块的多个数字增益因子中选择的数字增益因子和从多个模拟增益因子中选择的模拟增益因子 模拟增益块; 其中DAC块前面是数字增益块，后面是模拟增益块; 其中所述数字增益块被配置为将数字输入信号乘以所述数字增益因子以提供中间数字信号; 其中所述DAC块被配置为将所述中间数字信号转换为转换的模拟信号; 并且其中所述模拟增益块被配置为将所述转换的模拟信号乘以所述模拟增益因子以提供输出信号; 其中模拟增益因子的增量导致数字增益因子的减小。
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45.发明申请公开(公告)号：US20150194942A1
公开(公告)日：2015-07-09
申请号：US14602330
申请日：2015-01-22
Applicant: DSP Group LTD.
Inventor： Sergey Anderson , Alexander Mostov , Eli Schwartz , Ron Pongratz , Ilya Sima
CPC classification number: H03F3/213 , B82Y10/00 , B82Y40/00 , H03F1/0216 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/451 , H03F2200/504 , H03F2203/21106 , Y02D70/00
Abstract: A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.
Abstract translation: 一种新颖有用的射频（RF）前端模块（FEM）电路，提供高线性度和功率效率，并满足现代无线通信标准（如802.11 WLAN，3G和4G蜂窝标准，蓝牙，ZigBee等）的要求。 有限元电路的配置允许使用常见的，相对低成本的半导体制造技术，例如标准CMOS工艺。 FEM电路包括由具有高功率电路和低功率电路的一个或多个子放大器组成的功率放大器，并且其输出被组合以产生总的期望功率增益。 具有以新颖配置布置的初级和次级绕组的集成多抽头变压器提供了由各个子放大器产生的功率的有效功率组合和传输到天线。
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Patent Agency Ranking
46.发明授权公开(公告)号：US09070506B2
公开(公告)日：2015-06-30
申请号：US14034158
申请日：2013-09-23
Applicant: DSP Group, Ltd.
Inventor： Sergey Anderson , Alexander Mostov
IPC: H01F5/00 , H01L27/08 , H01F38/14 , H02M3/04 , H01F27/28 , H01F27/29 , H01F38/00 , H03F3/19 , H03F3/21 , H03F3/68 , H03F3/193 , H04B1/44 , H01F19/04 , H03F1/02 , H03F3/45
CPC classification number: H03F1/565 , H01F19/04 , H01F27/2804 , H01F27/29 , H01F38/00 , H01F38/14 , H01L23/5227 , H01L23/645 , H01L23/66 , H01L2223/6655 , H01L2223/6672 , H01L2924/0002 , H02M3/04 , H02M3/1563 , H02M2001/0012 , H03F1/0227 , H03F1/0261 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/21 , H03F3/211 , H03F3/213 , H03F3/45179 , H03F3/68 , H03F2200/102 , H03F2200/105 , H03F2200/387 , H03F2200/451 , H03F2200/534 , H03F2200/537 , H03F2200/541 , H04B1/44 , Y02D70/00 , H01L2924/00
Abstract: A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.
Abstract translation: 一种新颖有用的射频（RF）前端模块（FEM）电路，提供高线性度和功率效率，并满足现代无线通信标准（如802.11 WLAN，3G和4G蜂窝标准，蓝牙，ZigBee等）的要求。 有限元电路的配置允许使用常见的，相对低成本的半导体制造技术，例如标准CMOS工艺。 FEM电路包括由具有高功率电路和低功率电路的一个或多个子放大器组成的功率放大器，并且其输出被组合以产生总的期望功率增益。 具有以新颖配置布置的初级和次级绕组的集成多抽头变压器提供了由各个子放大器产生的功率的有效功率组合和传输到天线。
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公开(公告)号：US11811026B2
公开(公告)日：2023-11-07
申请号：US16808422
申请日：2020-03-04
Applicant: DSP Group Ltd.
Inventor： Assaf Ganor , Tzahi Shalit , Levi Schultz
CPC classification number: H01M10/4264 , H01M10/0436 , H02J7/345
Abstract: A coin cell powered device includes a regulator, a transmitter and a charge pump. The transmitter is configured to transmit signals during a transmission period while receiving power from the regulator, the power originated from an external capacitor. The charge pump is configured to perform, during a charging period, a charging process for charging the external capacitor to a charged voltage that exceeds a voltage of a cell coin, wherein the charging process may include iterations of (a) charging a charge pump capacitor by the coin cell, and (b) discharging the charge pump capacitor thereby charging the external capacitor. The capacitance of the charge pump capacitor is a fraction of a capacitance of the external capacitor. The duration of the charging period exceeds a duration of the transmission period.
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公开(公告)号：US11671741B2
公开(公告)日：2023-06-06
申请号：US17936218
申请日：2022-09-28
Applicant: DSP Group Ltd.
Inventor： Gabriel Seiden
CPC classification number: H04R1/1041 , H04R29/00 , H04R2201/109 , H04R2400/01
Abstract: A method for in-ear detection, the method may include transmitting test signals, by a speaker of an earbud, during a test period, and while the earbud is operating at a first operational mode, wherein the test signals comprise at least one first test signal within a first frequency range, at least one second test signal within a second frequency range, and at one third test signal within a third frequency range; wherein the first frequency range, the second frequency range and the third frequency range differ from each other and are within a human auditory range; generating, by a feedback microphone of the earbud, sensed information that is indicative of audio signals sensed by the feedback microphone as a result of the transmitting of the test signals; and determining whether the earbud is located within an ear of a person, wherein the determining is based on the sensed information and a reference out of ear spectrum.
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公开(公告)号：US20230045569A1
公开(公告)日：2023-02-09
申请号：US17861876
申请日：2022-07-11
Applicant: DSP Group Ltd.
Inventor： Avraham KEREN
Abstract: This disclosure provides methods, devices, and systems for videoconferencing. The present implementations more specifically relate to audio signal processing techniques that can be used to identify speakers in a videoconference. In some aspects, an audio signal processor may map each speaker in a videoconference to a respective spatial direction and transform the audio signals received from each speaker using one or more transfer functions associated with the spatial direction to which the speaker is mapped. The audio signal processor may further transmit the transformed audio signals to an audio output device that emits sounds waves having a directionality associated with the transformation. For example, the audio signal processor may apply one or more head-related transfer functions to the audio signals received from a particular speaker so that the sound waves emitted by the audio output device are perceived as originating from the spatial direction to which the speaker is mapped.
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公开(公告)号：US11295747B2
公开(公告)日：2022-04-05
申请号：US16294909
申请日：2019-03-06
Applicant: DSP GROUP LTD.
Inventor： Avi Keren
Abstract: A method and a voice processor that includes (i) an input that is configured to receive of audio signals that represent audio, (ii) a wake word detection circuit, (iii) a first buffer that is configured to store at least wake word signals and prebuffer signals, and (iv) a communication module that is configured to (a) output, over an interrupt port, an interrupt request to an application processor, following a detection of the wake word signals, (b) following an acceptance of the application processor to receive content, access the first buffer and retrieve the prebuffer signals and the wake word signals; and (b) output the content, over the I2S port, to the application processor. The content includes the wake word signals, the prebuffer signals, and query or command signals.
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