Patents by Inventor Jianmin Gong
Jianmin Gong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240004034Abstract: An optical sensor module includes a module housing defining a first compartment having a first aperture and a second compartment having a second aperture, with the second aperture spaced apart from the first aperture. A set of optical emitters is disposed in the first compartment and configured to emit light through the first aperture. A first set of optical detectors is disposed in the first compartment and configured to receive a first redirected portion of the emitted light through the first aperture. A set of optical elements is disposed in the first compartment and configured to direct at least a portion of the emitted light or the first redirected portion of the emitted light. A second set of optical detectors is disposed in the second compartment and configured to receive a second redirected portion of the emitted light through the second aperture.Type: ApplicationFiled: May 10, 2023Publication date: January 4, 2024Inventors: Tong Chen, Brandon J. Hui, Jianmin Gong, Mark T. Winkler, Runyu Liu, Yazan Z. Alnahhas, Yohai Zmora
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Publication number: 20230184939Abstract: A proximity sensor includes a light source configured to emit a beam of optical radiation and a detector configured to output an electrical signal in response to the optical radiation that is incident on the detector. A first optical multimode fiber is configured to receive the emitted beam and to direct the emitted beam toward an object. A second optical multimode fiber is configured to receive the optical radiation reflected from the object and to convey the received optical radiation to the detector. A processor is coupled to process the electrical signal so as to compute a distance to the object.Type: ApplicationFiled: December 14, 2021Publication date: June 15, 2023Inventors: Yazan Z. Alnahhas, Eamon H. O'Connor, Jianmin Gong, Matthew C. Waldon, Mauro O. Magnaghi, Meng Zhang, Prabhakar Gulgunje, Wei Lin, Yohai Zmora
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Publication number: 20210364728Abstract: This application provides a zoom assembly, including a first refraction component and a first lens apparatus. The first refraction component is configured to change a transmission path of light, and the first refraction component includes a first surface, a second surface, a third surface, and a first reflection structure. The three surfaces of the first refraction component are all transmission surfaces. An optical axis of the first lens apparatus is perpendicular to the second surface of the first refraction component. The first reflection structure is attached to the third surface, and is configured to receive light transmitted by one of the transmission surfaces and reflect the light to another transmission surface.Type: ApplicationFiled: August 10, 2021Publication date: November 25, 2021Inventors: Ming Li, Jianmin Gong, Dongyu Geng, Francis Man
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Patent number: 10788658Abstract: 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.Type: GrantFiled: January 10, 2018Date of Patent: September 29, 2020Assignee: Futurewei Technologies, Inc.Inventors: Jianmin Gong, Francis Man, Dongyu Geng, Xin Tu, Ming Li, Peng Zhang
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Patent number: 10532923Abstract: 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.Type: GrantFiled: February 14, 2018Date of Patent: January 14, 2020Assignee: Futurewei Technologies, Inc.Inventors: Jianmin Gong, Francis Man, Dongyu Geng, Xin Tu, Ming Li, Jiejiang Xing, Yusheng Bai
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Publication number: 20190248647Abstract: 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.Type: ApplicationFiled: February 14, 2018Publication date: August 15, 2019Inventors: Jianmin Gong, Francis Man, Dongyu Geng, Xin Tu, Ming Li, Jiejiang Xing, Yusheng Bai
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Publication number: 20190212545Abstract: 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.Type: ApplicationFiled: January 10, 2018Publication date: July 11, 2019Applicant: Futurewei Technologies, Inc.Inventors: Jianmin Gong, Francis Man, Dongyu Geng, Xin Tu, Ming Li, Peng Zhang
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Patent number: 10283932Abstract: An apparatus comprising a laser comprising an active layer and configured to emit an optical signal, wherein a temperature change of the laser causes the optical signal to shift in wavelength, and a heater thermally coupled to the active layer and configured to reduce a wavelength shift of the optical signal by applying heat to the active layer.Type: GrantFiled: November 18, 2016Date of Patent: May 7, 2019Assignee: Futurewei Technologies, Inc.Inventors: Xuejin Yan, Jianmin Gong, Hongbing Lei, Jianhe Gao
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Patent number: 10050701Abstract: The present invention provides an apparatus including: a macrobending injected-light modulation and control module, configured to modulate an injected optical signal according to a port identifier of each first port and inject the injected optical signal to an optical fiber connected to the first port; a macrobending signal detection module, configured to receive a received optical signal at a second port of an optical transmission path; a phase-locked detection module, electrically connected to the macrobending injected-light modulation and control module and the macrobending signal detection module, and configured to: when an injected optical signal that is injected by the macrobending injected-light modulation and control module to an optical fiber is consistent with a received optical signal that is acquired by the macrobending signal detection module, acquire and output port identifiers of a first port and a second port.Type: GrantFiled: April 26, 2016Date of Patent: August 14, 2018Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jianmin Gong, Jun Huang, Jun Zhao
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Patent number: 10004160Abstract: An adaptive heat dissipation apparatus is provided, including two or more chamber walls forming a chamber volume having a first open side and a second open side, a heat source positioned at the first open side of the chamber volume, a heat conducting surface positioned at the second open side of the chamber volume, and a thermally-expansive material occupying a predetermined portion of the chamber volume. The thermally-expansive material expands to substantially fill the chamber volume at an ambient temperature above a predetermined temperature threshold and conducts heat from the heat source to the heat conducting surface. The thermally-expansive material contracts to leave an air gap when the ambient temperature is below the predetermined temperature threshold.Type: GrantFiled: April 14, 2017Date of Patent: June 19, 2018Assignee: Futurewei Technologies, Inc.Inventors: Jianmin Gong, Heng Wang, Shengping Li, Zhicheng Ye
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Patent number: 9817251Abstract: An optical filter comprising a first distributed Bragg reflector (DBR) layer, a second DBR layer, and an intrinsic semiconductor layer positioned between the first DBR layer and the second DBR layer, with the intrinsic semiconductor layer providing a passband wavelength for the optical filter based on a carrier density of the intrinsic semiconductor layer.Type: GrantFiled: May 2, 2016Date of Patent: November 14, 2017Assignee: Futurewei Technologies, Inc.Inventors: Jianmin Gong, Xuejin Yan, Dekun Liu, Liqiang Yu, Shengping Li, Jing Hu
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Publication number: 20170315386Abstract: An optical filter comprising a first distributed Bragg reflector (DBR) layer, a second DBR layer, and an intrinsic semiconductor layer positioned between the first DBR layer and the second DBR layer, with the intrinsic semiconductor layer providing a passband wavelength for the optical filter based on a carrier density of the intrinsic semiconductor layer.Type: ApplicationFiled: May 2, 2016Publication date: November 2, 2017Inventors: Jianmin Gong, Xuejin Yan, Dekun Liu, Liqiang Yu, Shengping Li, Jing Hu
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Publication number: 20170070030Abstract: An apparatus comprising a laser comprising an active layer and configured to emit an optical signal, wherein a temperature change of the laser causes the optical signal to shift in wavelength, and a heater thermally coupled to the active layer and configured to reduce a wavelength shift of the optical signal by applying heat to the active layer.Type: ApplicationFiled: November 18, 2016Publication date: March 9, 2017Inventors: Xuejin Yan, Jianmin Gong, Hongbing Lei, Jianhe Gao
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Patent number: 9537287Abstract: An apparatus comprising a burst-mode laser comprising an active layer and configured to emit an optical signal during a burst period, wherein a temperature change of the burst-mode laser causes the optical signal to shift in wavelength, and a heater thermally coupled to the active layer and configured to reduce a wavelength shift of the optical signal during the burst period by applying heat to the active layer based on timing of the burst period.Type: GrantFiled: December 15, 2015Date of Patent: January 3, 2017Assignee: Futurewei Technologies, Inc.Inventors: Xuejin Yan, Jianmin Gong, Hongbing Lei, Jianhe Gao
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Publication number: 20160241331Abstract: The present invention provides an apparatus including: a macrobending injected-light modulation and control module, configured to modulate an injected optical signal according to a port identifier of each first port and inject the injected optical signal to an optical fiber connected to the first port; a macrobending signal detection module, configured to receive a received optical signal at a second port of an optical transmission path; a phase-locked detection module, electrically connected to the macrobending injected-light modulation and control module and the macrobending signal detection module, and configured to: when an injected optical signal that is injected by the macrobending injected-light modulation and control module to an optical fiber is consistent with a received optical signal that is acquired by the macrobending signal detection module, acquire and output port identifiers of a first port and a second port.Type: ApplicationFiled: April 26, 2016Publication date: August 18, 2016Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jianmin GONG, Jun Huang, Jun Zhao
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Patent number: 9389364Abstract: An optical splitter has a main branch coupled to a number of tributary branches. The main branch includes a light-absorptive core and a light-reflective grating. The absorptive core can absorb light arriving from the tributary branches and transmit light arriving from the main branch to the reflective grating. The reflective grating can reflect light from the main branch back through the absorptive core to the main branch. Light arriving from the tributary branches exchanges mode with light reflected by the reflective grating.Type: GrantFiled: February 13, 2015Date of Patent: July 12, 2016Assignee: Futurewei Technologies, Inc.Inventors: Jianmin Gong, Weiyang Wang, Cong Chen
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Publication number: 20160111856Abstract: An apparatus comprising a burst-mode laser comprising an active layer and configured to emit an optical signal during a burst period, wherein a temperature change of the burst-mode laser causes the optical signal to shift in wavelength, and a heater thermally coupled to the active layer and configured to reduce a wavelength shift of the optical signal during the burst period by applying heat to the active layer based on timing of the burst period.Type: ApplicationFiled: December 15, 2015Publication date: April 21, 2016Inventors: Xuejin Yan, Jianmin Gong, Hongbing Lei, Jianhe Gao
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Patent number: 9246307Abstract: An apparatus comprising a burst-mode laser comprising an active layer and configured to emit an optical signal during a burst period, wherein a temperature change of the burst-mode laser causes the optical signal to shift in wavelength, and a heater thermally coupled to the active layer and configured to reduce a wavelength shift of the optical signal during the burst period by applying heat to the active layer based on timing of the burst period.Type: GrantFiled: October 8, 2014Date of Patent: January 26, 2016Assignee: Futurewei Technologies, Inc.Inventors: Xuejin Yan, Jianmin Gong, Hongbing Lei, Jianhe Gao
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Publication number: 20140348466Abstract: The present invention provides an optical splitter and a system, including: an optical divider, a ribbon fiber, and tributary fibers, where the optical divider is configured to divide an input optical signal into at least two optical signals for output; one end of the ribbon fiber is connected to the optical divider, and the other end of the ribbon fiber is connected to the tributary fibers, where a grating array is disposed on the ribbon fiber; and the grating array includes at least two Bragg gratings, different Bragg gratings correspond to different tributary lines of the optical divider, and the number of Bragg gratings included in the grating array is the same as the number of optical signals output by the optical divider; which solves a problem that additional connection loss is increased because an existing splitter needs to be connected to each link fiber by using an optical connector.Type: ApplicationFiled: July 21, 2014Publication date: November 27, 2014Inventors: Biao Qi, Jianmin Gong, Libing Zhou
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Patent number: 8743365Abstract: An inspection probe for directly measuring a transmission spectrum of a solvent oil in a transformer includes a tube having a plurality of apertures spaced along a side of the tube to allow oil to pass therethrough, and first and second optical collimators disposed at opposing ends of the tube. The first and second collimators are aligned by the tube such that incident light is transmitted through the first collimator, the tube, and the second collimator to a spectrometer.Type: GrantFiled: May 16, 2012Date of Patent: June 3, 2014Assignee: Virginia Polytechnic Institute & State UniversityInventors: Bo Dong, Anbo Wang, Jianmin Gong