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    • 1. 发明申请
    • CHARGE SHARING TIME DOMAIN FILTER
    • 充电共享时域过滤器
    • US20120306569A1
    • 2012-12-06
    • US13490110
    • 2012-06-06
    • Eric NestlerJeffrey VenutiVladimir ZlatkovicKartik Nanda
    • Eric NestlerJeffrey VenutiVladimir ZlatkovicKartik Nanda
    • H03K5/00
    • H03K5/00H03H15/02
    • An approach to time domain filtering uses a passive charge sharing approach to implement an infinite impulse response filter. Delayed samples of an input signal are stored as charges on capacitors of a first array of capacitors, and delayed samples of the output signal are stored as charges on capacitors of a second array of capacitors. Outputs are determined by passively coupling capacitors of the first and second arrays to one another, and determining the output according to a total charge on the coupled capacitors. In some examples, a gain is applied to the total charge prior to storing the output on the second array of capacitors. In some examples, a charge scaling circuit is applied to the charges stored on the arrays prior to coupling capacitors to form the output.
    • 时域滤波方法采用无源电荷共享方式来实现无限脉冲响应滤波器。 将输入信号的延迟样本作为电荷存储在第一电容器阵列的电容器上,并且输出信号的延迟采样作为电荷存储在第二电容器阵列的电容器上。 输出由第一和第二阵列的电容器彼此无源耦合确定,并根据耦合的电容器上的总电荷来确定输出。 在一些示例中,在将输出存储在第二电容器阵列之前,将增益应用于总电荷。 在一些示例中,在耦合电容器之前,将电荷量化电路应用于存储在阵列上的电荷以形成输出。
    • 2. 发明授权
    • Charge sharing time domain filter
    • 电荷共享时域滤波器
    • US08717094B2
    • 2014-05-06
    • US13490110
    • 2012-06-06
    • Eric NestlerJeffrey VenutiVladimir ZlatkovicKartik Nanda
    • Eric NestlerJeffrey VenutiVladimir ZlatkovicKartik Nanda
    • H03K5/00
    • H03K5/00H03H15/02
    • An approach to time domain filtering uses a passive charge sharing approach to implement an infinite impulse response filter. Delayed samples of an input signal are stored as charges on capacitors of a first array of capacitors, and delayed samples of the output signal are stored as charges on capacitors of a second array of capacitors. Outputs are determined by passively coupling capacitors of the first and second arrays to one another, and determining the output according to a total charge on the coupled capacitors. In some examples, a gain is applied to the total charge prior to storing the output on the second array of capacitors. In some examples, a charge scaling circuit is applied to the charges stored on the arrays prior to coupling capacitors to form the output.
    • 时域滤波方法采用无源电荷共享方式来实现无限脉冲响应滤波器。 将输入信号的延迟样本作为电荷存储在第一电容器阵列的电容器上,并且输出信号的延迟采样作为电荷存储在第二电容器阵列的电容器上。 输出由第一和第二阵列的电容器彼此无源耦合确定,并根据耦合的电容器上的总电荷来确定输出。 在一些示例中,在将输出存储在第二电容器阵列之前,将增益应用于总电荷。 在一些示例中,在耦合电容器之前,将电荷量化电路应用于存储在阵列上的电荷以形成输出。
    • 6. 发明授权
    • Charge sharing analog computation circuitry and applications
    • 电荷共享模拟计算电路和应用
    • US08547272B2
    • 2013-10-01
    • US13813101
    • 2011-08-18
    • Eric NestlerVladimir ZlatkovicJeffrey Venuti
    • Eric NestlerVladimir ZlatkovicJeffrey Venuti
    • H03M1/12
    • H03H7/0138G06F17/5063G10K15/00H02M1/14H03H15/00H03H15/02H03M1/12H04R25/00
    • In one aspect, reduced power consumption and/or circuit area of a discrete time analog signal processing module is achieved in an approach that makes use of entirely, or largely, passive charge sharing circuitry, which may include configurable (e.g., after fabrication, at runtime) multiplicative scaling stages that do not require active devices in the signal path. In some examples, multiplicative coefficients are represented digitally, and are transformed to configure the reconfigurable circuitry to achieve a linear relationship between a desired coefficient and a degree of charge transfer. In some examples, multiple successive charge sharing phases are used to achieve a desired multiplicative effect that provides a large dynamic range of coefficients without requiring a commensurate range of sizes of capacitive elements. The scaling circuits can be combined to form configurable time domain or frequency domain filters.
    • 在一个方面,离散时间模拟信号处理模块的降低的功耗和/或电路面积是通过使用完全或很大程度上被动电荷共享电路的方法实现的,其中可能包括可配置(例如,在制造之后,在 运行时)乘法缩放阶段,不需要信号路径中的有源设备。 在一些示例中,乘法系数被数字地表示,并且被变换以配置可重构电路以实现期望系数和电荷转移程度之间的线性关系。 在一些示例中,使用多个连续的电荷共享阶段来实现期望的乘法效应,其提供大的动态范围的系数,而不需要电容元件尺寸的相应范围。 缩放电路可以组合以形成可配置的时域或频域滤波器。
    • 7. 发明申请
    • CHARGE SHARING ANALOG COMPUTATION CIRCUITRY AND APPLICATIONS
    • 充电共享模拟计算电路和应用
    • US20130207827A1
    • 2013-08-15
    • US13813101
    • 2011-08-18
    • Eric NestlerVladimir ZlatkovicJeffrey Venuti
    • Eric NestlerVladimir ZlatkovicJeffrey Venuti
    • H03H15/00H03M1/12
    • H03H7/0138G06F17/5063G10K15/00H02M1/14H03H15/00H03H15/02H03M1/12H04R25/00
    • In one aspect, reduced power consumption and/or circuit area of a discrete time analog signal processing module is achieved in an approach that makes use of entirely, or largely, passive charge sharing circuitry, which may include configurable (e.g., after fabrication, at runtime) multiplicative scaling stages that do not require active devices in the signal path. In some examples, multiplicative coefficients are represented digitally, and are transformed to configure the reconfigurable circuitry to achieve a linear relationship between a desired coefficient and a degree of charge transfer. In some examples, multiple successive charge sharing phases are used to achieve a desired multiplicative effect that provides a large dynamic range of coefficients without requiring a commensurate range of sizes of capacitive elements. The scaling circuits can be combined to form configurable time domain or frequency domain filters.
    • 在一个方面,离散时间模拟信号处理模块的降低的功耗和/或电路面积是通过使用完全或很大程度上被动电荷共享电路的方法实现的,其中可能包括可配置(例如,在制造之后,在 运行时)乘法缩放阶段,不需要信号路径中的有源设备。 在一些示例中,乘法系数被数字地表示,并且被变换以配置可重构电路以实现期望系数和电荷转移程度之间的线性关系。 在一些示例中,使用多个连续的电荷共享阶段来实现期望的乘法效应,其提供大的动态范围的系数,而不需要电容元件尺寸的相应范围。 缩放电路可以组合以形成可配置的时域或频域滤波器。
    • 10. 发明申请
    • SIGNAL MAPPING
    • 信号映射
    • US20100281089A1
    • 2010-11-04
    • US12716113
    • 2010-03-02
    • Benjamin VigodaJeffrey BernsteinAlexander AlexeyevJeffrey Venuti
    • Benjamin VigodaJeffrey BernsteinAlexander AlexeyevJeffrey Venuti
    • G06F1/02G06G7/18G06F17/14
    • H04L27/38H03M1/368
    • A circuit includes a signal processing circuit for accepting an input and for generating a set of outputs. The input is provided in an input range that has a set of representative values, and each output represents a measure of an association of the input with one or more of the representative values. The signal processing circuit includes a group of output sections, each output section being responsive to the input of the signal processing circuit. Each output section includes one or more sigmoid generators. Each sigmoid generator is responsive to an input of the output section to generate an output that represents a sigmoid function of the input of the output section. Each output section also includes a circuitry for combining the outputs of the one or more sigmoid generators to form one of the set of outputs of the signal processing circuit. An input transformation circuit is coupled to the plurality of output sections. The input transformation circuit is configurable to transform the input of the signal processing circuit for controlling a mapping characteristic from the input to the set of outputs.
    • 电路包括用于接受输入并产生一组输出的信号处理电路。 在具有一组代表值的输入范围中提供输入,并且每个输出表示输入与一个或多个代表值的关联度量。 信号处理电路包括一组输出部分,每个输出部分响应信号处理电路的输入。 每个输出部分包括一个或多个S形发生器。 每个S形发生器响应于输出部分的输入以产生表示输出部分的输入的S形功能的输出。 每个输出部分还包括用于组合一个或多个S形发生器的输出以形成信号处理电路的一组输出的电路。 输入变换电路耦合到多个输出部分。 输入变换电路可配置为变换信号处理电路的输入,用于控制从输入到输出组的映射特性。