公开(公告)号：US20160248319A1

公开(公告)日：2016-08-25

申请号：US14631429

申请日：2015-02-25

Applicant: Analog Devices Global

Inventor： Patrick J. Meehan ,  Thomas Conway ,  Adrian Paul Brokaw ,  Donal G. O'Sullivan

IPC: H02M1/44 ,  H03H7/01 ,  H02M3/158

CPC classification number: H02M1/44 ,  H02M1/15 ,  H02M3/158 ,  H03H7/0153 ,  H03H2007/013 ,  H03H2210/036

Abstract: A circuit and method to filter a signal is provided. The circuit includes a notch filter circuit to receive an input signal and first and second tuning signals and to provide an output signal. The notch filter circuit has an input-output frequency response that includes a stopband region. The stopband region has a center frequency and has an attenuation level that is based at least on a tuning signal. The tunable filter circuit further includes a tuning circuit operable in at least two modes to generate the tuning signal. The at least two modes includes a tuning mode and a filtering mode. The tuning circuit generates the tuning signal such that the attenuation level of the stopband region is greater in the filtering mode than in the tuning mode.

Abstract translation: 提供了一种滤波信号的电路和方法。 电路包括陷波滤波器电路，用于接收输入信号和第一和第二调谐信号并提供输出信号。 陷波滤波器电路具有包括阻带区域的输入 - 输出频率响应。 阻带区域具有中心频率并且具有至少基于调谐信号的衰减电平。 可调滤波器电路还包括可以以至少两种模式操作以产生调谐信号的调谐电路。 该至少两种模式包括调谐模式和滤波模式。 调谐电路产生调谐信号，使滤波模式下的阻带区域的衰减电平大于调谐模式。

公开(公告)号：US09503055B2

公开(公告)日：2016-11-22

申请号：US14642224

申请日：2015-03-09

Applicant: ANALOG DEVICES GLOBAL

Inventor： Patrick J. Meehan ,  Mark T. Kelly ,  Christopher Peter Hurrell ,  Thomas Anthony Conway ,  Donal O'Sullivan ,  Michael Hennessy ,  William Hunt

IPC: H02M3/07 ,  H03H21/00 ,  H03M1/12 ,  H03M1/06 ,  H03K17/16 ,  H03K17/00 ,  G06F1/26

CPC classification number: H03H21/0007 ,  G06F1/26 ,  H03K17/00 ,  H03K17/161 ,  H03M1/0626 ,  H03M1/12

Abstract: A signal processing apparatus that includes a circuit in which a signal processing function is performed during a first time period, the signal processing apparatus including or being associated with a switch or a filter in a power supply to the signal processing apparatus so as to disconnect the signal processing apparatus from the power supply or to filter the power supply during a second time period that is coincident with at least part of the first time period.

公开(公告)号：US20150318841A1

公开(公告)日：2015-11-05

申请号：US14642224

申请日：2015-03-09

Applicant: ANALOG DEVICES GLOBAL

Inventor： Patrick J. Meehan ,  Mark T. Kelly ,  Christopher Peter Hurrell ,  Thomas Anthony Conway ,  Donal O'Sullivan ,  Michael Hennessy ,  William Hunt

IPC: H03H21/00 ,  H03M1/06 ,  H03M1/12

CPC classification number: H03H21/0007 ,  G06F1/26 ,  H03K17/00 ,  H03K17/161 ,  H03M1/0626 ,  H03M1/12

Abstract: A signal processing apparatus that includes a circuit in which a signal processing function is performed during a first time period, the signal processing apparatus including or being associated with a switch or a filter in a power supply to the signal processing apparatus so as to disconnect the signal processing apparatus from the power supply or to filter the power supply during a second time period that is coincident with at least part of the first time period.

Abstract translation: 一种信号处理装置，包括在第一时间段内执行信号处理功能的电路，所述信号处理装置包括或者与所述信号处理装置的电源中的开关或滤波器相关联，以便断开所述信号处理装置 信号处理装置，或者在与第一时间段的至少一部分一致的第二时间段期间对电源进行滤波。