公开(公告)号：US10727888B2

公开(公告)日：2020-07-28

申请号：US15939222

申请日：2018-03-28

Applicant: Qualcomm Incorporated

Inventor： Udara Fernando ,  Roberto Rimini ,  Mustafa Emin Sahin ,  Seunghwan Kim ,  Nikhil Anand Muthya

IPC: H04B17/12 ,  H04W52/24 ,  H04W52/28 ,  G01S13/08 ,  G01S13/87 ,  G01S13/76 ,  H04B1/3827 ,  H01Q21/06 ,  H04L27/12 ,  H01Q1/24 ,  H04L27/26 ,  H04L5/00 ,  H04B7/06

Abstract: An apparatus is disclosed for proximity detection based on an electromagnetic field perturbation. In an example aspect, the apparatus includes an antenna array including at least two feed ports and a wireless transceiver coupled to the antenna array. The wireless transceiver is configured to generate an electromagnetic field via the antenna array. The wireless transceiver is also configured to receive energy from the electromagnetic field via the at least two feed ports. The wireless transceiver is additionally configured to adjust a transmission parameter based on the energy received via the at least two feed ports. The transmission parameter varies based on a range to an object that is present within the electromagnetic field.

公开(公告)号：US11637581B2

公开(公告)日：2023-04-25

申请号：US17483191

申请日：2021-09-23

Applicant: QUALCOMM INCORPORATED

Inventor： Chinmaya Mishra ,  Nikhil Anand Muthya ,  Damin Cao ,  Shrenik Patel

IPC: H04B1/40 ,  H03F3/24 ,  H04L12/24 ,  H04L12/08 ,  H04L27/00 ,  H04L5/00 ,  H04W52/36 ,  H03G3/30

Abstract: A system for power amplifier control includes a processor, a memory in communication with the processor, wherein the processor and the memory are configured to simultaneously provide input signal strength of each of a plurality of power amplifiers in a millimeter wave (mmW) phased array system, determine an average input signal strength of the plurality of power amplifiers based on the provided input signal strengths using an analog-to-digital converter (ADC), determine a voltage headroom for the plurality of power amplifiers based on the determined average input signal strength, estimate a power backoff value based on the voltage headroom, and determine a gain control value based on the estimated power backoff value.

公开(公告)号：US20190044561A1

公开(公告)日：2019-02-07

申请号：US15939222

申请日：2018-03-28

Applicant: Qualcomm Incorporated

Inventor： Udara Fernando ,  Roberto Rimini ,  Mustafa Emin Sahin ,  Seunghwan Kim ,  Nikhil Anand Muthya

IPC: H04B1/3827 ,  H04B17/12 ,  H04W52/24 ,  H04W52/28

Abstract: An apparatus is disclosed for proximity detection based on an electromagnetic field perturbation. In an example aspect, the apparatus includes an antenna array including at least two feed ports and a wireless transceiver coupled to the antenna array. The wireless transceiver is configured to generate an electromagnetic field via the antenna array. The wireless transceiver is also configured to receive energy from the electromagnetic field via the at least two feed ports. The wireless transceiver is additionally configured to adjust a transmission parameter based on the energy received via the at least two feed ports. The transmission parameter varies based on a range to an object that is present within the electromagnetic field.