公开(公告)号：US20150302976A1

公开(公告)日：2015-10-22

申请号：US14255587

申请日：2014-04-17

Applicant: QUALCOMM Incorporated

Inventor： Richard Tzewei Chang ,  Amirpouya Kavousian

IPC: H01F27/28 ,  H01F41/00

CPC classification number: H01F27/2885 ,  H01F41/00 ,  H01L23/5225 ,  H01L23/5227 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A magnetic shield for an inductor is disclosed that may substantially reduce unwanted magnetic coupling from other inductive circuitry. An inductive apparatus includes an inductor and a magnetic shield to shield the inductor from magnetic coupling effects. The magnetic shield includes an inductive ring formed from a plurality of turns surrounding the inductor. The magnetic shield may be used to reduce a magnetic coupling between the inductor and an inductive circuit element. Thus, the number of turns of the inductive ring may be based on the magnetic coupling between the inductor and the inductive circuit element. Further, a distance between the magnetic shield and the inductor may be based on the number of turns of the inductive ring. The distance between the magnetic shield and the inductor is to offset a magnetic coupling between the inductor and the magnetic shield.

Abstract translation: 公开了一种用于电感器的磁屏蔽件，其可以基本上减少来自其它感应电路的不期望的磁耦合。 电感装置包括电感器和磁屏蔽件，用于屏蔽电感器免受磁耦合效应。 磁屏蔽包括由围绕电感器的多个匝形成的感应环。 磁屏蔽可用于减小电感器和感应电路元件之间的磁耦合。 因此，感应环的匝数可以基于电感器和感应电路元件之间的磁耦合。 此外，磁屏蔽和电感器之间的距离可以基于感应环的匝数。 磁屏蔽和电感之间的距离是抵消电感和磁屏蔽之间的磁耦合。

公开(公告)号：US09160584B1

公开(公告)日：2015-10-13

申请号：US14603127

申请日：2015-01-22

Applicant: QUALCOMM Incorporated

Inventor： Amirpouya Kavousian ,  Yashar Rajavi ,  Richard Tzewei Chang ,  Alireza Khalili ,  Mohammad Bagher Vahid Far ,  Abbas Komijani

IPC: H04L25/08 ,  H04L25/03 ,  H03F3/19

CPC classification number: H04L25/08 ,  H03F1/345 ,  H03F3/19 ,  H03F3/245 ,  H03G3/3042 ,  H04L25/03

Abstract: A method and apparatus are disclosed for mitigating a frequency spur included with a transmitter output signal from a wireless device. For at least some embodiments, the wireless device may include an auxiliary synthesizer to generate a spur cancellation signal to be summed with the transmitter output signal to cancel or reduce the frequency spur. The auxiliary synthesizer may also generate an auxiliary clock signal to demodulate a received communication signal. In some embodiments, the transmitter output signal may be looped back to a receiver of the wireless device to determine whether the frequency spur is reduced below a threshold. Data from the receiver may be used to modify the spur cancellation signal.

Abstract translation: 公开了一种用于减轻来自无线设备的发射机输出信号所包含的频率支路的方法和装置。 对于至少一些实施例，无线设备可以包括辅助合成器，以产生要与发射机输出信号相加的杂散消除信号，以消除或减少频率突发。 辅助合成器还可以产生辅助时钟信号以解调所接收的通信信号。 在一些实施例中，发射机输出信号可以环回到无线设备的接收机，以确定频率突发是否减小到低于阈值。 来自接收机的数据可以用于修改杂散消除信号。