公开(公告)号：US20240206996A1

公开(公告)日：2024-06-27

申请号：US18554726

申请日：2022-04-08

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Agrim Gupta ,  Cedric Girerd ,  Manideep Dunna ,  Tania Morimoto ,  Dinesh Bharadia ,  Raghav Subbaraman ,  Qiming Zhang

IPC: A61B34/30 ,  A61B90/00 ,  G01L1/10 ,  G01L5/04

CPC classification number: A61B34/30 ,  G01L1/106 ,  G01L5/042 ,  A61B2090/064

Abstract: A wireless force sensor includes a flexible structure supported opposing a rigid structure with a gap between the flexible structure and the rigid structure. Contact traces on opposing surfaces of the flexible structure and the rigid structure form transmission lines. The contract traces are aligned to contact when a force is applied the flexible structure to cause contact between the traces on the opposing surfaces. Radio-frequency switches modulate a reflected signal from the transmission lines. An antenna receives an interrogation signal transmits the reflected signal.

公开(公告)号：US20250158667A1

公开(公告)日：2025-05-15

申请号：US18722883

申请日：2022-12-22

Applicant: The Regents of the University of California

Inventor： Agrim Gupta ,  Dinesh Bharadia

IPC: H04B7/0413 ,  H04B1/00 ,  H04B7/08

Abstract: In some embodiments, there may be provided systems, methods, and articles of manufacture for timeinterleaved multiple output. In some example embodiments, there may be provided an apparatus including a plurality of antennas; an analog spreader coupled the plurality of antennas; a radio frequency chain coupled to the analog spreader, wherein the radio frequency chain down converts and performs an analog-to-digital conversion to generate a stream; and a digital despreader, wherein the digital despreader receives the stream output by the radio frequency chain and digitally inverts analog spreading caused by the analog spreader to generate one or more user streams. Related systems, methods, and articles of manufacture are also disclosed.

公开(公告)号：US20240418582A1

公开(公告)日：2024-12-19

申请号：US18337272

申请日：2023-06-19

Applicant: The Regents of the University of California

Inventor： Tania Morimoto ,  Cédric Girerd ,  Daegue Park ,  Dinesh Bharadia ,  Agrim Gupta ,  Shayaun Bashar

IPC: G01L1/14

Abstract: A preferred embodiment provides a deformable passive force sensor that induces a change in an interrogation RF signal present on a conductive connection to produce a changed reflective signal and an ID circuit that responds with an ID and the changed reflective signal.