公开(公告)号：US11747901B1

公开(公告)日：2023-09-05

申请号：US17848266

申请日：2022-06-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Sean Jason Keller ,  David R. Perek ,  Tristan Thomas Trutna ,  Garett Andrew Ochs ,  Nicholas Roy Corson ,  Raymond King

IPC: G06F3/01 ,  G02B27/01 ,  G09G5/00 ,  G06F3/147 ,  G06F3/03 ,  G06F1/16 ,  G06F3/0346

CPC classification number: G06F3/014 ,  G02B27/017 ,  G02B27/0172 ,  G06F3/016 ,  G06F3/017 ,  G06F3/0304 ,  G06F3/147 ,  G09G5/003 ,  G02B2027/014 ,  G02B2027/0138 ,  G02B2027/0187 ,  G06F1/163 ,  G06F3/011 ,  G06F3/012 ,  G06F3/013 ,  G06F3/0346 ,  G09G2320/0693

Abstract: A virtual reality system enables a user to interact with virtual objects. The system includes a fiducial ring, an imaging device and a console. The fiducial ring includes a ring body that includes a plurality of fiducial markers that each correspond to a different location on the ring body. An imaging device is configured to capture one or more images of the fiducial ring. The console receives the images that include an image of one or more fiducial markers. Based on the received images of the fiducial markers, the console determines a location on the fiducial ring that corresponds to the imaged fiducial marker. The console determines a position of the fiducial ring based on the determined location of the fiducial marker on the fiducial ring. The console provides content to a head mounted display (HMD) based on the determined position of the fiducial ring.

公开(公告)号：US11519511B1

公开(公告)日：2022-12-06

申请号：US17531503

申请日：2021-11-19

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Sean Jason Keller ,  David R. Perek ,  Tristan Thomas Trutna ,  Garett Andrew Ochs ,  Nicholas Roy Corson ,  Raymond King ,  Jack Lindsay ,  Riccardo DeSalvo ,  Joseph Minh Tien ,  Matthew Robert Schwab

IPC: F16K7/07 ,  F16K31/126 ,  F16K99/00 ,  F15C3/04 ,  G05D7/03

Abstract: A fluidic device comprises a channel, a gate, and one or more additional elements. The channel is configured to transport a fluid from a source to a drain. The gate includes a chamber with an adjustable volume that affects fluid flow within the channel by displacing a wall of the channel toward an opposite wall of the channel based in part on fluid pressure within the chamber exceeding a threshold pressure. A high pressure state of the gate corresponds to a first chamber size and a first flow rate of the fluid. A low pressure state of the gate corresponds to a second chamber size that is smaller than the first chamber size and a second flow rate that is greater than the first flow rate. The additional elements are configured to reduce the threshold pressure past which the chamber decreases the cross-sectional area of the channel.