公开(公告)号：US20180152697A1

公开(公告)日：2018-05-31

申请号：US15361641

申请日：2016-11-28

Applicant: X Development LLC

Inventor： Richard DeVaul ,  Brian Adolf

IPC: H04N13/04 ,  H04N9/31

CPC classification number: H04N13/327 ,  H04N9/3129 ,  H04N9/315 ,  H04N13/307 ,  H04N13/363

Abstract: The present disclosure relates to systems, devices, and methods for calibrating a light field projection system. One example system includes a projection unit operable to project a scanning sequence toward a screen having convex reflective elements. The scanning sequence is modulated according to a baseline intensity profile. The system also includes a calibration device disposed such that a portion of the scanning sequence is intercepted by the calibration device. The calibration device includes a first light detector arranged to detect an intercepted intensity profile. The calibration device also includes a second light detector arranged to detect a reflected portion of the scanning sequence as a measured intensity profile. The system further includes a control system. The control system is configured to determine an expected intensity profile and to modify operation of the light field projection system based on a comparison of the measured intensity profile to the expected intensity profile.

公开(公告)号：US20180187595A1

公开(公告)日：2018-07-05

申请号：US15395622

申请日：2016-12-30

Applicant: X DEVELOPMENT LLC

Inventor： Raj Apte ,  Richard DeVaul ,  Philippe Larochelle

IPC: F02C1/05 ,  H02K7/18 ,  F02C1/10 ,  F02C9/24

Abstract: Systems and methods relating to variable pressure turbines are disclosed. A power generation system may include a closed cycle system configured to generate power, a combustor, and a control system. The closed cycle system may include a working fluid circulating in a closed cycle path. The combustor may provide thermal energy to the working fluid. Further, the control system may be configured to determine to increase an amount of power generated by the closed cycle system, and in response to the determination to increase the amount of power generated by the closed cycle system, cause an increase in pressure of the working fluid in the closed cycle path.

公开(公告)号：US09891516B1

公开(公告)日：2018-02-13

申请号：US15297579

申请日：2016-10-19

Applicant: X Development LLC

Inventor： Richard DeVaul ,  Brian Adolf

IPC: G03B21/60 ,  G03B21/602 ,  H04N9/31 ,  H04N13/04

CPC classification number: G03B21/602 ,  H04N9/3129 ,  H04N9/3152 ,  H04N9/3194 ,  H04N9/3197 ,  H04N13/307 ,  H04N13/363

Abstract: The present disclosure relates to methods for calibrating a light field projection system that includes a screen having convex reflective elements. One example method for calibrating a light field projection system includes scanning the plurality of convex reflective elements with light modulated according to a baseline intensity profile. The method also includes detecting a light intensity profile of the scanned light using a light detector at a first perspective. The method further includes comparing the detected light intensity profile to an expected light intensity profile and modifying operation of a control system that determines light field modulation schemes for projecting light fields to account for any differences between the detected intensity profile and the expected intensity profile. The detector may be moved to a second perspective and the previously steps of the method may be repeated from the second perspective of the light detector.

公开(公告)号：US10091496B2

公开(公告)日：2018-10-02

申请号：US15361641

申请日：2016-11-28

Applicant: X Development LLC

Inventor： Richard DeVaul ,  Brian Adolf

IPC: H04N9/31 ,  G03B21/60 ,  G03B21/602 ,  H04N13/327

Abstract: The present disclosure relates to systems, devices, and methods for calibrating a light field projection system. One example system includes a projection unit operable to project a scanning sequence toward a screen having convex reflective elements. The scanning sequence is modulated according to a baseline intensity profile. The system also includes a calibration device disposed such that a portion of the scanning sequence is intercepted by the calibration device. The calibration device includes a first light detector arranged to detect an intercepted intensity profile. The calibration device also includes a second light detector arranged to detect a reflected portion of the scanning sequence as a measured intensity profile. The system further includes a control system. The control system is configured to determine an expected intensity profile and to modify operation of the light field projection system based on a comparison of the measured intensity profile to the expected intensity profile.

公开(公告)号：US09961333B1

公开(公告)日：2018-05-01

申请号：US15178685

申请日：2016-06-10

Applicant: X Development LLC

Inventor： Brian Adolf ,  Richard DeVaul

IPC: G03B21/602 ,  H04N9/31 ,  H04N13/04 ,  G03B21/606 ,  G02B26/12 ,  G02B26/10

CPC classification number: H04N13/363 ,  G02B26/101 ,  G02B26/123 ,  G03B21/602 ,  G03B21/606 ,  G03B35/24 ,  H04N9/3129 ,  H04N9/3135 ,  H04N9/3161 ,  H04N9/3164 ,  H04N13/305 ,  H04N13/307 ,  H04N13/351 ,  H04N13/354 ,  H04N13/366 ,  H04N13/398

Abstract: The present disclosure relates to systems and methods for projecting a light field. One light field projection system includes a screen and a projection unit. On the screen, there is a plurality of convex reflective elements arranged in a two-dimensional array. The projection unit has a light source. The projection unit also has a modulator to modulate light from the light source. The projection unit further has one or more movable mirrored elements to reflect light from the light source toward the screen to sequentially scan the plurality of convex reflective elements. The projection unit also has a control system that determines a light modulation scheme used by the modulator. The light modulation scheme provides that the light reflected from the light source toward the screen to sequentially scan the plurality of convex reflective elements forms a light field that is concurrently viewable from a plurality of perspectives.

公开(公告)号：US09514269B1

公开(公告)日：2016-12-06

申请号：US13943935

申请日：2013-07-17

Applicant: X Development LLC

Inventor： Keith Bonawitz ,  Joshua Weaver ,  Richard DeVaul

IPC: G06G7/48 ,  G06F17/50

CPC classification number: G06F17/509 ,  H04B7/18504 ,  H04L41/06

Abstract: Example methods and systems for determining failure modes of balloons within a balloon network are described. One example method includes: (a) determining at least one cohort balloon of a first balloon, where the first balloon is operating as part of a balloon network and where each cohort balloon shares at least one property with the first balloon, (b) determining at least one expected failure mode based at least in part on at least one failure of at least one cohort balloon, (c) determining a predicted failure mode of the first balloon based at least in part on the at least one expected failure mode, and (d) causing the first balloon to operate within the balloon network based at least in part on the predicted failure mode of the first balloon.

Abstract translation: 描述了用于确定气球网络中气球的故障模式的示例方法和系统。 一个示例性方法包括：（a）确定第一气球的至少一个队列气球，其中第一气球作为气球网络的一部分操作，并且其中每个队列气球与第一气球共享至少一个属性，（b）确定 至少部分地基于至少一个队列气球的至少一个故障的至少一个预期故障模式，（c）至少部分地基于所述至少一个预期故障模式来确定所述第一气球的预测故障模式;以及 （d）至少部分地基于第一气球的预测故障模式使第一气球在球囊网络内操作。

公开(公告)号：US09917633B2

公开(公告)日：2018-03-13

申请号：US15053024

申请日：2016-02-25

Applicant: X Development LLC

Inventor： Richard DeVaul ,  Eric Teller ,  Clifford Biffle ,  Josh Weaver

IPC: H04B10/11 ,  G05D1/00 ,  H04B7/185 ,  H04B10/118 ,  H04B10/112 ,  B64B1/40

CPC classification number: H04B7/18504 ,  B64B1/40 ,  G05D1/0094 ,  H04B10/1123 ,  H04B10/1129 ,  H04B10/118

Abstract: A balloon may include an optical-communication component, which may have a pointing axis. A pointing mechanism could be configured to adjust the pointing axis. The optical-communication component could be operable to communicate with a correspondent balloon via a free-space optical link. For example, the optical-communication component could include an optical receiver, transmitter, or transceiver. A controller could be configured to determine a predicted relative location of the correspondent balloon. The controller may control the pointing mechanism to adjust the pointing axis of the optical-communication component based on the predicted relative location so as to maintain the free-space optical link with the correspondent balloon.