-
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
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
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：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
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
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.
-
-
-
Search Results
4
records
(took 0.012 seconds)
