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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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Patent Agency Ranking
公开(公告)号：US11222654B2
公开(公告)日：2022-01-11
申请号：US16740795
申请日：2020-01-13
Applicant: DSP Group Ltd.
Inventor： Assaf Ganor , Ori Elyada
IPC: G10L25/84 , G10K11/178
Abstract: A method for voice detection, the method may include (a) generating an in-ear signal that represents a signal sensed by an in-ear microphone and fed to a feedback active noise cancellation (ANC) circuit; (b) generating at least one additional signal, based on at least one out of a playback signal and a pickup signal sensed by a voice pickup microphone; and (c) generating a voice indicator based on the in-ear signal and the at least one additional signal.
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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
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.
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公开(公告)号：US20200273486A1
公开(公告)日：2020-08-27
申请号：US16740795
申请日：2020-01-13
Applicant: DSP Group Ltd.
Inventor： Assaf Ganor , Ori Elyada
IPC: G10L25/84 , G10K11/178
Abstract: A method for voice detection, the method may include (a) generating an in-ear signal that represents a signal sensed by an in-ear microphone and fed to a feedback active noise cancellation (ANC) circuit; (b) generating at least one additional signal, based on at least one out of a playback signal and a pickup signal sensed by a voice pickup microphone; and (c) generating a voice indicator based on the in-ear signal and the at least one additional signal.
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公开(公告)号：US20160381464A1
公开(公告)日：2016-12-29
申请号：US15190218
申请日：2016-06-23
Applicant: DSP Group LTD.
Inventor： Ori Elyada
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.
Abstract translation: 一种双端口气泵扬声器，包括至少两个有源，相位调制的双向快门和具有至少两个端口的超声波泵送室; 朝向收听者的第一端口，前向端口和朝向另一方向的第二端口，后方端口可以在声音挡板之后或扬声器外壳内。 具有两个主动转向快门的双端口扬声器可以产生连续的双向气流，导致低音频的低失真再现。 同样的改进设计也可用于需要声调制的其他应用，特别是在超声波频率中。
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公开(公告)号：US09143157B1
公开(公告)日：2015-09-22
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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