公开(公告)号：US10532923B2

公开(公告)日：2020-01-14

申请号：US15896607

申请日：2018-02-14

Applicant: Futurewei Technologies, Inc.

Inventor： Jianmin Gong ,  Francis Man ,  Dongyu Geng ,  Xin Tu ,  Ming Li ,  Jiejiang Xing ,  Yusheng Bai

IPC: B81B7/00 ,  H02K33/16 ,  G02B26/08 ,  H02K33/18

Abstract: Methods and apparatus for reducing the oscillation of a MEMS actuator. In one embodiment, a driving signal is generated to adjust the MEMS actuator through a set of driving wires coupled to the MEMS actuator. A motion-induced signal from the set of driving wires coupled to the MEMS actuator is received in response to the driving signal. The motion-induced signal is filtered to generate a filtered motion-induced signal. The filtered motion-induced signal is amplified to generate an amplified filtered motion-induced signal. The driving signal is adjusted based on the amplified filtered motion-induced signal to reduce the oscillation of the MEMS actuator.

公开(公告)号：US10788658B2

公开(公告)日：2020-09-29

申请号：US15866775

申请日：2018-01-10

Applicant: Futurewei Technologies, Inc.

Inventor： Jianmin Gong ,  Francis Man ,  Dongyu Geng ,  Xin Tu ,  Ming Li ,  Peng Zhang

IPC: H04Q11/00 ,  G02B26/08 ,  G02B6/26 ,  G02B6/35 ,  G02B27/62 ,  G02B6/12

Abstract: Optical cross connects and methods for use therewith are described herein. In an embodiment, an optical cross connect includes first and second mirror arrays, first and second light sources that respectively emit first and second color coded light beams (e.g., each of which includes red, green and blue light), and first and second cameras configured to respectively capture first and second color images of the first and second color coded light beams reflected respectively from the first and second mirror arrays. The optical cross connect also includes a controller configured to perform closed loop feedback control of the first and second mirror arrays, based on the first and second color images, when the controller controls how optical signals are transferred between individual optical fibers in a first bundle of optical fibers and individual optical fibers in a second bundle of optical fibers.

公开(公告)号：US20190049717A1

公开(公告)日：2019-02-14

申请号：US16057198

申请日：2018-08-07

Applicant: Futurewei Technologies, Inc.

Inventor： Francis Man

IPC: G02B26/08

Abstract: A MEMS package includes a cavity formed within a package body, a semiconductor device disposed within the cavity and including a microelectromechanical systems (MEMS) micro-mirror, a damping fluid disposed within the cavity and at least partially surrounding a portion of the MEMS micro-mirror, and a magnet assembly disposed within the cavity and at least partially surrounded by the damping fluid, the magnet assembly being magnetically coupled with the MEMS micro-mirror.

公开(公告)号：US10775608B2

公开(公告)日：2020-09-15

申请号：US16057198

申请日：2018-08-07

Applicant: Futurewei Technologies, Inc.

Inventor： Francis Man

IPC: G02B26/08 ,  G02B26/10 ,  B81B7/00

Abstract: A MEMS package includes a cavity formed within a package body, a semiconductor device disposed within the cavity and including a microelectromechanical systems (MEMS) micro-mirror, a damping fluid disposed within the cavity and at least partially surrounding a portion of the MEMS micro-mirror, and a magnet assembly disposed within the cavity and at least partially surrounded by the damping fluid, the magnet assembly being magnetically coupled with the MEMS micro-mirror.

公开(公告)号：US20190248647A1

公开(公告)日：2019-08-15

申请号：US15896607

申请日：2018-02-14

Applicant: Futurewei Technologies, Inc.

Inventor： Jianmin Gong ,  Francis Man ,  Dongyu Geng ,  Xin Tu ,  Ming Li ,  Jiejiang Xing ,  Yusheng Bai

IPC: B81B7/00 ,  H02K33/16 ,  G02B26/08 ,  H02K33/18

Abstract: Methods and apparatus for reducing the oscillation of a MEMS actuator. In one embodiment, a driving signal is generated to adjust the MEMS actuator through a set of driving wires coupled to the MEMS actuator. A motion-induced signal from the set of driving wires coupled to the MEMS actuator is received in response to the driving signal. The motion-induced signal is filtered to generate a filtered motion-induced signal. The filtered motion-induced signal is amplified to generate an amplified filtered motion-induced signal. The driving signal is adjusted based on the amplified filtered motion-induced signal to reduce the oscillation of the MEMS actuator.

公开(公告)号：US20190212545A1

公开(公告)日：2019-07-11

申请号：US15866775

申请日：2018-01-10

Applicant: Futurewei Technologies, Inc.

Inventor： Jianmin Gong ,  Francis Man ,  Dongyu Geng ,  Xin Tu ,  Ming Li ,  Peng Zhang

IPC: G02B26/08 ,  G02B27/62 ,  G02B6/35 ,  G02B6/26 ,  G02B6/12 ,  H04Q11/00

Abstract: Optical cross connects and methods for use therewith are described herein. In an embodiment, an optical cross connect includes first and second mirror arrays, first and second light sources that respectively emit first and second color coded light beams (e.g., each of which includes red, green and blue light), and first and second cameras configured to respectively capture first and second color images of the first and second color coded light beams reflected respectively from the first and second mirror arrays. The optical cross connect also includes a controller configured to perform closed loop feedback control of the first and second mirror arrays, based on the first and second color images, when the controller controls how optical signals are transferred between individual optical fibers in a first bundle of optical fibers and individual optical fibers in a second bundle of optical fibers.