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公开(公告)号：US09602920B2
公开(公告)日：2017-03-21
申请号：US14600026
申请日：2015-01-20
Applicant: DSP Group LTD.
Inventor： Moshe Haiut
CPC classification number: H04R3/00 , H04R1/04 , H04R2201/003
Abstract: A scheme is described to switch the power supply to the MEMS microphone on and off in a cyclic manner that is synchronized with the associated ADC sampling rate. In this way the MEMS microphone amplifier, whether it is a J-FET transistor or an operational amplifier, is off most of the cycle time, and is turned on only for a few micro-seconds prior to the sample-and-hold timing of the ADC device. By this method, the average power consumption of an existing analog MEMS microphone can be reduced by a factor of 10 or more.
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公开(公告)号：US20150215698A1
公开(公告)日：2015-07-30
申请号：US14600026
申请日：2015-01-20
Applicant: DSP Group LTD.
Inventor： Moshe Haiut
IPC: H04R3/00
CPC classification number: H04R3/00 , H04R1/04 , H04R2201/003
Abstract: A scheme is described to switch the power supply to the MEMS microphone on and off in a cyclic manner that is synchronized with the associated ADC sampling rate. In this way the MEMS microphone amplifier, whether it is a J-FET transistor or an operational amplifier, is off most of the cycle time, and is turned on only for a few micro-seconds prior to the sample-and-hold timing of the ADC device. By this method, the average power consumption of an existing analog MEMS microphone can be reduced by a factor of 10 or more.
Abstract translation: 描述了以与关联的ADC采样率同步的循环方式将MEMS麦克风的电源切换到MEMS麦克风的方案。 以这种方式，无论是J-FET晶体管还是运算放大器，MEMS麦克风放大器在大部分周期时间内都处于关闭状态，并且在采样保持定时之前仅打开几微秒， ADC器件。 通过这种方法，现有的模拟MEMS麦克风的平均功耗可以降低10倍或更多。
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公开(公告)号：US20140337036A1
公开(公告)日：2014-11-13
申请号：US14272544
申请日：2014-05-08
Applicant: DSP Group LTD.
Inventor： Moshe Haiut , Arie Heiman , Uri Yehuday
CPC classification number: G10L15/20 , G06F1/3265 , G06F3/167 , G10L15/28 , G10L25/78
Abstract: In a mobile device, a bone conduction or vibration sensor is used to detect the user's speech and the resulting output is used as the source for a low power Voice Trigger (VT) circuit that can activate the Automatic Speech Recognition (ASR) of the host device. This invention is applicable to mobile devices such as wearable computers with head mounted displays, mobile phones and wireless headsets and headphones which use speech recognition for the entering of input commands and control. The speech sensor can be a bone conduction microphone used to detect sound vibrations in the skull, or a vibration sensor, used to detect sound pressure vibrations from the user's speech. This VT circuit can be independent of any audio components of the host device and can therefore be designed to consume ultra-low power. Hence, this VT circuit can be active when the host device is in a sleeping state and can be used to wake the host device on detection of speech from the user. This VT circuit will be resistant to outside noise and react solely to the user's voice.
Abstract translation: 在移动设备中，使用骨传导或振动传感器来检测用户的语音，并将所得到的输出用作可以激活主机的自动语音识别（ASR）的低功率语音触发（VT）电路的源 设备。 本发明可应用于诸如具有头戴式显示器的可穿戴计算机，移动电话和无线耳机以及使用语音识别来输入输入命令和控制的耳机的移动设备。 语音传感器可以是用于检测颅骨中的声音振动的骨传导麦克风或用于检测来自用户的语音的声压振动的振动传感器。 该VT电路可以独立于主机设备的任何音频组件，因此可以被设计为消耗超低功耗。 因此，当主机处于睡眠状态时，该VT电路可以是活动的，并且可以用于在从用户检测到语音时唤醒主机设备。 该VT电路将抵抗外部噪声，并仅对用户的声音作出反应。
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公开(公告)号：US11238887B2
公开(公告)日：2022-02-01
申请号：US16021147
申请日：2018-06-28
Applicant: DSP Group Ltd.
Inventor： Moshe Haiut
Abstract: A processor, that may include at least one neural network that comprises at least one leaky spiking neuron; wherein the at least one leaky spiking neuron is configured to directly receive an input pulse density modulation (PDM) signal from a sensor; wherein the input PDM signal represents a detected signal that was detected by the sensor; and wherein the at least one neural network is configured to process the input PDM signal to provide an indication about the detected input signal.
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公开(公告)号：US11163531B2
公开(公告)日：2021-11-02
申请号：US16447966
申请日：2019-06-21
Applicant: DSP GROUP LTD.
Inventor： Moshe Haiut , Assaf Ganor
Abstract: A method and a MAC unit that may include accumulation unit and a multiplier. A accumulation unit that includes a first part, a second part and a third part. The first part may calculate a truncated sum. The second part may be configured to (a) receive, during each calculation cycle, a carry out of an add operation performed during a calculation cycle, (b) receive a sign bit of an intermediate product calculated during the calculation cycle; and (c) calculate, by the counter logic, a counter logic value, and (d) convert, after a start of a last calculation cycle of the calculation cycles, an output value of the counter logic to an intermediate value having a two's complement format. The third part may be configured to calculate an output value of the MAC unit based on the intermediate value and a truncated sum calculated by the first part of the accumulation unit.
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Patent Agency Ranking
公开(公告)号：US11087205B2
公开(公告)日：2021-08-10
申请号：US15877459
申请日：2018-01-23
Applicant: DSP Group Ltd.
Inventor： Moshe Haiut
IPC: G06N3/04 , G06N3/08 , G06F17/11 , G06F7/58 , G06N3/063 , G06F30/20 , G06F111/10 , G06F119/12
Abstract: A neural network that may include multiple layers of neural cells; wherein a certain neural cell of a certain layer of neural cells may include a first plurality of one-bit inputs; an adder and leaky integrator unit; and an activation function circuit that has a one-bit output; wherein the first plurality of one-bit inputs are coupled to a first plurality of one-bit outputs of neural cells of a layer that precedes the certain layer; wherein the adder and leaky integration unit is configured to calculate a leaky integral of a weighted sum of a number of one-bit pulses that were received, during a time window, by the first plurality of one-bit inputs; and wherein the activation function circuit is configured to apply an activation function on the leaky integral to provide a one-bit output of the certain neural cell.
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公开(公告)号：US20180225564A1
公开(公告)日：2018-08-09
申请号：US15877459
申请日：2018-01-23
Applicant: DSP Group Ltd.
Inventor： Moshe Haiut
CPC classification number: G06N3/049 , G06F7/58 , G06F17/11 , G06F17/5009 , G06F2207/4824 , G06F2217/16 , G06F2217/84 , G06N3/0445 , G06N3/0481 , G06N3/063 , G06N3/08
Abstract: A neural network that may include multiple layers of neural cells; wherein a certain neural cell of a certain layer of neural cells may include a first plurality of one-bit inputs; an adder and leaky integrator unit; and an activation function circuit that has a one-bit output; wherein the first plurality of one-bit inputs are coupled to a first plurality of one-bit outputs of neural cells of a layer that precedes the certain layer; wherein the adder and leaky integration unit is configured to calculate a leaky integral of a weighted sum of a number of one-bit pulses that were received, during a time window, by the first plurality of one-bit inputs; and wherein the activation function circuit is configured to apply an activation function on the leaky integral to provide a one-bit output of the certain neural cell.
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公开(公告)号：US11831344B2
公开(公告)日：2023-11-28
申请号：US16747567
申请日：2020-01-21
Applicant: DSP Group Ltd.
Inventor： Tomer Malach , Moshe Haiut
IPC: H03M7/42
CPC classification number: H03M7/425
Abstract: A method for providing codewords, the method may include receiving by an input buffer, one or more chunks of data; calculating a location of relevant bits within one or more chunks of data; wherein the relevant bits comprise (a) variable length retrieval information used during a retrieval process of a first type codeword, or (b) a second type codeword; performing the retrieval process of the first type codeword and retrieving the first type codeword from a memory unit that stores only a fraction of a codebook, the codebook comprises first type codewords and second type codewords; determining whether the relevant bits comprises the second type codeword or not; and outputting the second type codeword or the first type codeword, based on the determination.
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公开(公告)号：US09859791B2
公开(公告)日：2018-01-02
申请号：US15355062
申请日：2016-11-18
Applicant: DSP Group Ltd.
Inventor： Moshe Haiut
CPC classification number: H02M3/07
Abstract: A method for charge-reuse, the method may include performing multiple repetitions of the steps of: operating a second capacitive load while the second capacitive load is disconnected from a first capacitive load; wherein the second capacitive load is a Microelectromechanical systems (MEMS) capacitive load or a Nanoelectromechanical systems (NEMS) capacitive load; electrically coupling a first capacitive load to a second capacitive load via a path that comprises an inductor; charging the first capacitive load with a second charge provided from the second capacitive load; electrically disconnecting the first capacitive load, the second capacitive load and the inductor from each other; feeding the inductor with a supply current provided by a supply circuit; disconnecting the inductor from the supply circuit and coupling the inductor to the first capacitive load; charging the first capacitive load by the inductor; electrically coupling the first capacitive load to the second capacitive load via the path that comprises the inductor; charging the second capacitive load with a first charge provided from the first capacitive load; and operating the second capacitive load while the second capacitive load is disconnected from the first capacitive load.
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公开(公告)号：US20160133255A1
公开(公告)日：2016-05-12
申请号：US14938878
申请日：2015-11-12
Applicant: DSP Group LTD.
Inventor： Moshe Haiut
CPC classification number: G10L15/22 , G10L2015/223 , G10L2025/783 , H04R19/005 , H04R2420/07 , H04R2420/09
Abstract: A method for voice triggering, the method may include coupling, by an interface of a voice trigger sensor, the voice trigger sensor to a computer; receiving, by the voice trigger sensor, from the computer configuration information; configuring the voice trigger sensor by using the configuration information; coupling, by the interface, the voice trigger sensor to a target device during a voice activation period; receiving, by a processor of the voice trigger sensor, during the voice activation period, input signals; applying, by the processor, on the input signals a voice activation process to detect a voice command; andat least partially participating in an execution of the voice command.
Abstract translation: 一种用于语音触发的方法，该方法可以包括通过语音触发传感器的接口将语音触发传感器耦合到计算机; 通过语音触发传感器接收计算机配置信息; 使用配置信息配置语音触发传感器; 在语音激活期间，通过接口将语音触发传感器耦合到目标设备; 通过语音触发传感器的处理器在语音激活期间接收输入信号; 由处理器对输入信号施加用于检测语音命令的语音激活过程; 并且至少部分地参与语音命令的执行。
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