公开(公告)号：US20240056043A1

公开(公告)日：2024-02-15

申请号：US17886887

申请日：2022-08-12

Applicant: QUALCOMM Incorporated

Inventor： Rahul SINGH ,  Mehran BAKHSHIANI ,  Timothy Donald GATHMAN ,  Yuhua GUO ,  Elias DAGHER

IPC: H03F3/45 ,  H04B1/10 ,  H03H11/04 ,  H04B1/04 ,  H03F1/14 ,  H03M1/12

CPC classification number: H03F3/45273 ,  H04B1/10 ,  H03H11/04 ,  H04B1/04 ,  H03F1/14 ,  H03M1/12

Abstract: An apparatus, including a positive input for an input differential signal; a negative input for the input differential signal; a positive output for an output differential signal; a negative output for the output differential signal; a first capacitor including a first terminal coupled to the positive output; a second capacitor including a first terminal coupled to the negative output; and a switching network configured to: couple a second terminal of the first capacitor to the negative input or a positive node based on a mode signal; and couple a second terminal of the second capacitor to the positive input or a negative node based on the mode signal.

公开(公告)号：US20210408989A1

公开(公告)日：2021-12-30

申请号：US17318959

申请日：2021-05-12

Applicant: QUALCOMM Incorporated

Inventor： Ahmed ABBAS MOHAMED HELMY ,  Mehran BAKHSHIANI ,  Francesco GATTA ,  Hasnain LAKDAWALA ,  Rahul KARMAKER ,  Shankar GUHADOS

IPC: H03F3/45 ,  H03G3/30

Abstract: An aspect includes a filtering method including operating a first filter to filter a first input signal to generate a first output signal; operating a second filter to filter a second input signal to generate a second output signal; and selectively coupling at least a portion of the second filter with the first filter to filter a third input signal to generate a third output signal. Another aspect includes a filtering method including operating switching devices to configure a filter with a first set of pole(s); filtering a first input signal to generate a first output signal with the filter configured with the first set of pole(s); operating the switching devices to configure the filter with a second set of poles; and filtering a second input signal to generate a second output signal with the filter configured with the second set of poles.

公开(公告)号：US20230283268A1

公开(公告)日：2023-09-07

申请号：US17652961

申请日：2022-03-01

Applicant: QUALCOMM Incorporated

Inventor： Rahul SINGH ,  Mehran BAKHSHIANI

IPC: H03K5/01 ,  H03F3/19

CPC classification number: H03K5/01 ,  H03F3/19 ,  H03F2200/451 ,  H03F2200/294

Abstract: Attenuators are disclosed according to various aspects. In some aspects, an attenuator includes resistors coupled along a resistive path, wherein a first one of the resistors is coupled to an input of the attenuator, and shunt circuits, wherein each one of the shunt circuits is coupled between a respective node on the resistive path and an output of the attenuator. In other aspects, an attenuator includes routing circuits coupled in parallel between an input of the attenuator and an output of the attenuator, wherein each one of the routing circuits includes a respective series resistor and a respective series switch coupled in series between the input of the attenuator and the output of the attenuator, and a respective switchable resistor circuit coupled to a respective node between the respective series resistor and the respective series switch, wherein resistances of the series resistors of the routing circuits are binary weighted.

公开(公告)号：US20210409041A1

公开(公告)日：2021-12-30

申请号：US17318968

申请日：2021-05-12

Applicant: QUALCOMM Incorporated

Inventor： Ahmed ABBAS MOHAMED HELMY ,  Mehran BAKHSHIANI ,  Francesco GATTA

IPC: H04B1/00 ,  H03H11/12 ,  H03H19/00 ,  H04B1/18 ,  H04B1/16

Abstract: An aspect includes a filtering method including operating a first filter to filter a first input signal to generate a first output signal; operating a second filter to filter a second input signal to generate a second output signal; and merging at least a portion of the second filter with the first filter to filter a third input signal to generate a third output signal. Another aspect includes a filtering method including operating switching devices to configure a filter with a first set of pole(s); filtering a first input signal to generate a first output signal with the filter configured with the first set of pole(s); operating the switching devices to configure the filter with a second set of poles; and filtering a second input signal to generate a second output signal with the filter configured with the second set of poles.