-
公开(公告)号：US20190081703A1
公开(公告)日：2019-03-14
申请号：US15704614
申请日：2017-09-14
Applicant: Facebook, Inc.
Inventor： Eric Douglas Miller , Kevin Michael Birnbaum , Chien-Chung Chen , Andrew Todd Grier
IPC: H04B10/116 , G01B11/27 , H04B10/114 , G02B27/10 , G02B26/08 , H04B10/50 , H04B10/54 , H04B10/40
Abstract: A compact system for active co-boresight measurement includes a detector, a steering mirror, and a controller. The detector detects a portion of a transmission beam emitted by a transceiver and a portion of a received beam that is received from a remote terminal. The controller measures an offset between the detected portion of the received beam and the detected portion of the transmission beam. The controller controls a position of the steering mirror to align the portion of the received beam with a defined position on the detector, the defined position based in part on the offset.
-
公开(公告)号：US20190078858A1
公开(公告)日：2019-03-14
申请号：US15704608
申请日：2017-09-14
Applicant: Facebook, Inc.
Inventor： Eric Douglas Miller , Kevin Michael Birnbaum , Chien-Chung Chen , Andrew Todd Grier
Abstract: A system for active co-boresight measurement includes a detector, first and second steering mirrors, and a controller. The detector detects a portion of a transmission beam emitted by a transmitter and a portion of a received beam received from a remote terminal. The controller instructs the first steering mirror to scan the detected portion of the received beam to determine an alignment position. The controller controls a position of the first steering mirror to align the portion of the received beam with the alignment position on the detector, and controls a position of the second steering mirror to align the detected portion of the transmission beam with a defined position on the detector. The detected portion of the received beam at the alignment position and the detected portion of the transmission beam at the defined position correspond to the received beam and the transmission beam being aligned.
-
公开(公告)号：US20170317762A1
公开(公告)日：2017-11-02
申请号：US15655697
申请日：2017-07-20
Applicant: Facebook, Inc.
Inventor： Kevin Michael Birnbaum , Chien-Chung Chen
IPC: H04B10/61 , H04B10/071 , H04B10/112 , H04B10/11 , H04B10/60 , H04B10/114
CPC classification number: H04B10/615 , H04B10/071 , H04B10/11 , H04B10/112 , H04B10/1121 , H04B10/114 , H04B10/60
Abstract: Optical communication systems and methods using coherently combined optical beams are disclosed. A representative system includes a first mirror having a first actuator for adjusting a position of the first mirror in a path of a first optical beam and a first optical detector for receiving light reflected from the first mirror. The system also includes a second mirror having a second actuator for adjusting a position of the second mirror in a path of a second optical beam and a second optical detector for receiving light reflected from the second mirror. The system includes an interferometer for measuring an interference between the first and second optical beams and a third optical detector for receiving light from the second interfered optical beam. Intensity of the first interfered optical beam is increased by the interference, and intensity of the second interfered optical beam is decreased by the interference.
-
公开(公告)号：US20170187467A1
公开(公告)日：2017-06-29
申请号：US14982491
申请日：2015-12-29
Applicant: Facebook, Inc.
Inventor： Kevin Michael Birnbaum , Chien-Chung Chen
IPC: H04B10/61 , H04B10/071
CPC classification number: H04B10/615 , H04B10/071 , H04B10/11 , H04B10/112 , H04B10/1121 , H04B10/114 , H04B10/60
Abstract: Optical communication systems and methods using coherently combined optical beams are disclosed. A representative system includes a first mirror having a first actuator for adjusting a position of the first mirror in a path of a first optical beam and a first optical detector for receiving light reflected from the first mirror. The system also includes a second mirror having a second actuator for adjusting a position of the second mirror in a path of a second optical beam and a second optical detector for receiving light reflected from the second mirror. The system includes an interferometer for measuring an interference between the first and second optical beams and a third optical detector for receiving light from the second interfered optical beam. Intensity of the first interfered optical beam is increased by the interference, and intensity of the second interfered optical beam is decreased by the interference.
-
公开(公告)号：US20170183095A1
公开(公告)日：2017-06-29
申请号：US14982648
申请日：2015-12-29
Applicant: Facebook, Inc.
Inventor： Zhang Liu , Chien-Chung Chen
CPC classification number: B64C39/024 , B60L8/003 , B60L11/1835 , B60L11/1838 , B60L2200/10 , B64C2201/042 , B64C2201/066 , B64D2211/00 , H02J50/30 , H02J50/90 , H02S20/30 , H02S40/38 , Y02T10/7016 , Y02T10/7072 , Y02T10/7083 , Y02T90/121 , Y02T90/125 , Y02T90/128 , Y02T90/14 , Y02T90/163
Abstract: In one embodiment, a system includes a laser configured to generate a laser beam and a laser-aiming module configured to aim the laser beam to be at least in part incident on a remotely located, continuously moving solar cell. The system also includes a controller configured to receive a feedback signal indicating a position of the laser beam relative to the remotely located, continuously moving solar cell and instruct the laser-aiming module to adjust the aiming of the laser beam based on the feedback signal.
-
Patent Agency Ranking
6.发明授权公开(公告)号：US10594396B1
公开(公告)日：2020-03-17
申请号：US15986148
申请日：2018-05-22
Applicant: Facebook, Inc.
Inventor： Chiyun Xia , Harvard Keese Harding, Jr. , Chien-Chung Chen , Ferze Daligues Patawaran
IPC: H04B10/112 , H04B10/60 , G01J1/44 , G01J1/04 , G01J1/42
Abstract: The disclosed system may include (1) an optical element that receives an optical beam, (2) a wide field-of-view (FOV) quadrant photodetector that receives, from the optical element, first light originating from the optical beam, (3) a narrow FOV quadrant photodetector that receives, from the optical element, second light originating from the optical beam, and (4) a controller that controls an orientation of the optical element during at least a period of time based on a weighted combination of (a) output of the wide FOV quadrant photodetector in response to the first light, and (b) output of the narrow FOV quadrant photodetector in response to the second light. Various other systems, methods, and computer-readable media are also disclosed.
-
公开(公告)号：US20210319130A1
公开(公告)日：2021-10-14
申请号：US17354957
申请日：2021-06-22
Applicant: Facebook, Inc.
Inventor： Yi Huang , Wenlong Dong , Marc Alexander Celani , Xianliang Zha , Yunqing Chen , Harikrishna Madadi Reddy , Junqiang Lan , Chien Cheng Liu , Raghuvardhan Moola , Haluk Ucar , Sujith Srinivasan , Handong Li , Xing Cindy Chen , Tuo Wang , Zhao Wang , Baheerathan Anandharengan , Gaurang Chaudhari , Prahlad Rao Venkatapuram , Srikanth Alaparthi , James Alexander Morle , Vincent Matthew Malfa , Yassir Azziz , Chien-Chung Chen , Yan Cui , Pedro Eugenio Rocha Pedreira , Stavros Harizopoulos
IPC: G06F21/62 , G06F16/22 , G06F16/901 , G06T3/40
Abstract: The disclosed may include various systems and methods for improving the efficiency and scalability of large-scale systems. For example, the disclosed may include systems and methods for automatic privacy enforcement using privacy-aware infrastructure, scalable general-purpose low cost integer motion search, efficient scaler filter coefficients layout for flexible scaling quality control with limited hardware resources, hardware optimization for power saving with both different codecs enabled, optimizing storage overhead and performance for large distributed data warehouse, mass and volume efficient integration of intersatellite link terminals to a satellite bus, and overcoming retention limit for memory-based distributed database systems.
-
公开(公告)号：US10411829B2
公开(公告)日：2019-09-10
申请号：US14828322
申请日：2015-08-17
Applicant: Facebook, Inc.
Inventor： Kevin Michael Birnbaum , Kevin Jerome Quirk , Hamid Hemmati , Chien-Chung Chen , Gary Mak
IPC: H04L1/00 , H04B10/60 , H03M13/15 , H04B10/516 , H03M13/27 , H03M13/13 , H04L1/02 , H04B10/112
Abstract: Systems and methods for optical communication through air or space are disclosed. A method includes encoding one or more data frames with a data-link layer forward error correction (FEC) code to produce a plurality of encoded data frames and transmitting the plurality of encoded data frames from a transmitter (TX) to a receiver (RX) at least partially through air or space using a plurality of optical beams. The RX identifies a corrupted encoded data frame and reconstructs the corrupted encoded data frame using a data-link layer FEC decoder operating over a plurality of non-corrupted encoded data frames.
-
公开(公告)号：US10155586B2
公开(公告)日：2018-12-18
申请号：US14982648
申请日：2015-12-29
Applicant: Facebook, Inc.
Inventor： Zhang Liu , Chien-Chung Chen
Abstract: In one embodiment, a system includes a laser configured to generate a laser beam and a laser-aiming module configured to aim the laser beam to be at least in part incident on a remotely located, continuously moving solar cell. The system also includes a controller configured to receive a feedback signal indicating a position of the laser beam relative to the remotely located, continuously moving solar cell and instruct the laser-aiming module to adjust the aiming of the laser beam based on the feedback signal.
-
10.发明申请公开(公告)号：US20170054527A1
公开(公告)日：2017-02-23
申请号：US14828322
申请日：2015-08-17
Applicant: Facebook, Inc.
Inventor： Kevin Michael Birnbaum , Kevin Jerome Quirk , Hamid Hemmati , Chien-Chung Chen , Gary Mak
CPC classification number: H04L1/0041 , H04B10/112 , H04L1/0045 , H04L1/02 , H04L2001/0096
Abstract: Systems and methods for optical communication through air or space are disclosed. A method includes encoding one or more data frames with a data-link layer forward error correction (FEC) code to produce a plurality of encoded data frames and transmitting the plurality of encoded data frames from a transmitter (TX) to a receiver (RX) at least partially through air or space using a plurality of optical beams. The RX identifies a corrupted encoded data frame and reconstructs the corrupted encoded data frame using a data-link layer FEC decoder operating over a plurality of non-corrupted encoded data frames.
Abstract translation: 公开了通过空气或空间进行光通信的系统和方法。 一种方法包括用数据链路层前向纠错（FEC）码对一个或多个数据帧进行编码，以产生多个编码数据帧，并将多个编码数据帧从发射机（TX）发射到接收机（RX） 至少部分地使用多个光束通过空气或空间。 RX识别已损坏的编码数据帧，并使用在多个未损坏的编码数据帧上操作的数据链路层FEC解码器来重建损坏的编码数据帧。
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.015 seconds)
