公开(公告)号：US20230097399A1

公开(公告)日：2023-03-30

申请号：US17448750

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Ahmed ABBAS MOHAMED HELMY ,  Francesco GATTA ,  Balasubramanian RAMACHANDRAN ,  Abhishek Ananthrao KULKARNI ,  Prakash THOPPAY EGAMBARAM ,  Hasnain LAKDAWALA ,  Aleksandar Miodrag TASIC ,  Jang Joon LEE ,  Kyle David HOLLAND

IPC: H04B1/40 ,  H04B1/10

Abstract: Certain aspects of the present disclosure generally relate to techniques and apparatus for operating a wireless receiver of the apparatus in a high linearity mode. An example method includes operating the apparatus in a first mode with transmission of a plurality of transmit signals. The method also includes attenuating a received signal via an attenuator while operating the apparatus in the first mode. The method further includes amplifying the attenuated signal with an amplifier while operating the apparatus in the first mode. For certain aspects, the method further involves operating the apparatus in a second mode, bypassing the attenuator while operating the apparatus in the second mode, and amplifying the received signal with the amplifier while operating the apparatus in the second mode.

公开(公告)号：US20220190950A1

公开(公告)日：2022-06-16

申请号：US17124368

申请日：2020-12-16

Applicant: QUALCOMM Incorporated

Inventor： Lai Kan LEUNG ,  Aleksandar Miodrag TASIC ,  Francesco GATTA ,  Chiewcharn NARATHONG ,  Kyle David HOLLAND

IPC: H04K3/00 ,  H03F3/19 ,  H03M1/12

Abstract: The disclosure relates to an apparatus including a receiver configured to process a radio frequency (RF) signal to generate a baseband signal; a radio frequency (RF) jammer detector configured to generate a signal indicative of whether an RF jammer is present at an input of the receiver; and a receiver bias circuit configured to generate a supply voltage for the receiver based on the RF jammer indication signal. In another aspect, the apparatus includes constant gain bias circuit to maintain the gain of the receiver constant in response to changes in the supply voltage. In other aspects, the receiver bias circuit may suspend the generating of the supply voltage based on the RF jammer indication signal if the power level of the target received signal is above a threshold. In other aspects, the receiver bias circuit changes the supply voltage during cyclic prefix (CP) intervals between downlink intervals.

公开(公告)号：US20210367576A1

公开(公告)日：2021-11-25

申请号：US17322647

申请日：2021-05-17

Applicant: QUALCOMM INCORPORATED

Inventor： Lai Kan LEUNG ,  Aleksandar Miodrag TASIC ,  Chiewcharn NARATHONG

IPC: H03H7/01 ,  H04L25/03 ,  H03F3/189

Abstract: A programmable filter includes a first programmable filter instance comprising a first adjustable active inductance capacitively coupled to a signal receive path, the capacitive coupling comprising at least one adjustable capacitance, the adjustable active inductance and the at least one adjustable capacitance configurable to provide a filter response at a first selected frequency, and a second programmable filter instance comprising a second adjustable active inductance capacitively coupled to the signal receive path, the capacitive coupling comprising at least one adjustable capacitance, the second adjustable active inductance and the at least one adjustable capacitance configurable to provide a filter response at a second selected frequency.

公开(公告)号：US20180048271A1

公开(公告)日：2018-02-15

申请号：US15287674

申请日：2016-10-06

Applicant: QUALCOMM Incorporated

Inventor： Chirag Dipak PATEL ,  Sasha VUJCIC ,  Aleksandar Miodrag TASIC ,  Timothy GATHMAN ,  Wu-Hsin CHEN ,  Klaas VAN ZALINGE

IPC: H03F3/19 ,  H03F3/68 ,  H03H11/04 ,  H03H7/06

CPC classification number: H03F3/19 ,  H03F1/086 ,  H03F1/26 ,  H03F3/195 ,  H03F3/3022 ,  H03F3/68 ,  H03F2200/111 ,  H03F2200/168 ,  H03F2200/264 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/39 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2200/61 ,  H03F2200/75 ,  H03H7/06 ,  H03H11/04 ,  H04W88/02

Abstract: A multi-stage low-noise amplifier (LNA) device with a band pass response includes a first LNA in series with a second LNA. The device further includes multiple outputs coupled to the second LNA. Each of the outputs is capable of being active at the same time. The device further includes a high pass filter coupled between the first LNA and the second LNA.