Patents by Inventor Jiehua CHEN
Jiehua CHEN 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).
-
Patent number: 10921191Abstract: An atomic sensing method, the method including providing a polarization converter; emitting a linearly polarized polychromatic laser beam to the polarization converter; converting, by the polarization converter, the linearly polarized polychromatic laser beam into a circularly-polarized laser beam and a linearly-polarized laser beam; combining the circularly-polarized laser beam and the linearly-polarized laser beam thereby yielding a multi-polarization polychromatic laser beam; transmitting the multi-polarization polychromatic laser beam to an atomic vapor cell comprising alkali metal atoms, polarizing the multi-polarization polychromatic laser beam into two laser beams, and detecting the two laser beams by two photodetectors, respectively.Type: GrantFiled: February 23, 2020Date of Patent: February 16, 2021Assignee: WUHAN INSTITUTE OF PHYSICS AND MATHEMATICS, CHINESE ACADEMY OF SCIENCEInventors: Yi Zhang, Sihong Gu, Yuan Tian, Jiehua Chen
-
Patent number: 10911896Abstract: A method includes: receiving, by a first RRU, a first reference signal sent by a second RRU, where the first RRU is a to-be-positioned RRU, and the second RRU is an RRU at a known location; determining, by the first RRU, a first delay value based on the first reference signal; and reporting, by the first RRU, the first delay value to an upper-layer network element, so that the upper-layer network element performs location resolving processing based on the first delay value, to obtain location.Type: GrantFiled: May 8, 2020Date of Patent: February 2, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiaojie Li, Fei Jiao, Jiehua Chen, Xiaofeng Hu
-
Publication number: 20200271523Abstract: An atomic sensing method, the method including providing a polarization converter; emitting a linearly polarized polychromatic laser beam to the polarization converter; converting, by the polarization converter, the linearly polarized polychromatic laser beam into a circularly-polarized laser beam and a linearly-polarized laser beam; combining the circularly-polarized laser beam and the linearly-polarized laser beam thereby yielding a multi-polarization polychromatic laser beam; transmitting the multi-polarization polychromatic laser beam to an atomic vapor cell comprising alkali metal atoms, polarizing the multi-polarization polychromatic laser beam into two laser beams, and detecting the two laser beams by two photodetectors, respectively.Type: ApplicationFiled: February 23, 2020Publication date: August 27, 2020Inventors: Yi ZHANG, Sihong GU, Yuan TIAN, Jiehua CHEN
-
Publication number: 20200267501Abstract: A method includes: receiving, by a first RRU, a first reference signal sent by a second RRU, where the first RRU is a to-be-positioned RRU, and the second RRU is an RRU at a known location; determining, by the first RRU, a first delay value based on the first reference signal; and reporting, by the first RRU, the first delay value to an upper-layer network element, so that the upper-layer network element performs location resolving processing based on the first delay value, to obtain location.Type: ApplicationFiled: May 8, 2020Publication date: August 20, 2020Inventors: Xiaojie Li, Fei Jiao, Jiehua Chen, Xiaofeng Hu
-
Patent number: 10647252Abstract: Provided is a portable electronic device including: a sensor; and a control unit controlling the sensor so as to obtain movement information of the portable electronic device in order to detect a movement of at least a part of a user's arm, determining whether the user is in a driving state on the basis of the movement information, automatically switching into a driving mode on the basis of the determination, and activating at least one function relating to driving among the functions of the portable electronic device on the basis of the switching into the driving mode.Type: GrantFiled: October 26, 2018Date of Patent: May 12, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Changwei Sun, Kun Li, Jiehua Chen
-
Patent number: 10484105Abstract: A method for constructing a wireless positioning feature library includes: obtaining a wireless positioning training data set, where the wireless training data set includes a plurality of pieces of training data; performing clustering and merging on the plurality of pieces of training data one by one; and determining wireless positioning feature data based on at least one piece of sample data obtained after the merging.Type: GrantFiled: February 27, 2019Date of Patent: November 19, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaofeng Hu, Jiehua Chen
-
Publication number: 20190260480Abstract: A method for constructing a wireless positioning feature library includes: obtaining a wireless positioning training data set, where the wireless training data set includes a plurality of pieces of training data; performing clustering and merging on the plurality of pieces of training data one by one; and determining wireless positioning feature data based on at least one piece of sample data obtained after the merging.Type: ApplicationFiled: February 27, 2019Publication date: August 22, 2019Inventors: Xiaofeng HU, Jiehua CHEN
-
Publication number: 20190071012Abstract: Provided is a portable electronic device including: a sensor; and a control unit controlling the sensor so as to obtain movement information of the portable electronic device in order to detect a movement of at least a part of a user's arm, determining whether the user is in a driving state on the basis of the movement information, automatically switching into a driving mode on the basis of the determination, and activating at least one function relating to driving among the functions of the portable electronic device on the basis of the switching into the driving mode.Type: ApplicationFiled: October 26, 2018Publication date: March 7, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Changwei SUN, Kun LI, Jiehua CHEN
-
Patent number: 10137737Abstract: Disclosed is a portable electronic device comprising: a sensor; and a control unit controlling the sensor so as to obtain movement information of the portable electronic device in order to detect a movement of at least a part of a user's arm, determining whether the user is in a driving state on the basis of the movement information, automatically switching into a driving mode on the basis of the determination, and activating at least one function relating to driving among the functions of the portable electronic device on the basis of the switching into the driving mode.Type: GrantFiled: May 23, 2016Date of Patent: November 27, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Changwei Sun, Kun Li, Jiehua Chen
-
Publication number: 20180093610Abstract: Disclosed is a portable electronic device comprising: a sensor; and a control unit controlling the sensor so as to obtain movement information of the portable electronic device in order to detect a movement of at least a part of a user's arm, determining whether the user is in a driving state on the basis of the movement information, automatically switching into a driving mode on the basis of the determination, and activating at least one function relating to driving among the functions of the portable electronic device on the basis of the switching into the driving mode.Type: ApplicationFiled: May 23, 2016Publication date: April 5, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Changwei SUN, Kun LI, Jiehua CHEN
-
Patent number: 9874446Abstract: A physical unit of a chip-scale nuclear magnetic resonance (NMR) gyroscope, the physical unit including: a vertical cavity surface emitting laser (VCSEL), a silicon sheet including a recess, a glass sheet, an atomic vapor chamber, a first right angle prism, a quarter-wave plate, a polarizing beam splitter, and photodetectors. The recess includes sides including reflecting mirrors. The glass sheet is disposed on the silicon sheet. The recess of the silicon sheet is in a structure of an inverted square frustum, and the reflecting mirrors are disposed on sides of the recess. The atomic vapor chamber is an enclosed region formed between the recess and the glass sheet. The atomic vapor chamber is filled with alkali metal atoms, one or a plurality of inert gas atoms, and one or a plurality of buffer gases.Type: GrantFiled: April 22, 2015Date of Patent: January 23, 2018Assignee: WUHAN INSTITUTE OF PHYSICS AND MATHEMATICS, CHINESE ACADEMY OF SCIENCESInventors: Sihong Gu, Yi Zhang, Jiehua Chen, Hongwei Wu, Yuanchao Wang
-
Publication number: 20160010995Abstract: A physical unit of a chip-scale nuclear magnetic resonance (NMR) gyroscope, the physical unit including: a vertical cavity surface emitting laser (VCSEL), a silicon sheet including a recess, a glass sheet, an atomic vapor chamber, a first right angle prism, a quarter-wave plate, a polarizing beam splitter, and photodetectors. The recess includes sides including reflecting mirrors. The glass sheet is disposed on the silicon sheet. The recess of the silicon sheet is in a structure of an inverted square frustum, and the reflecting mirrors are disposed on sides of the recess. The atomic vapor chamber is an enclosed region formed between the recess and the glass sheet. The atomic vapor chamber is filled with alkali metal atoms, one or a plurality of inert gas atoms, and one or a plurality of buffer gases.Type: ApplicationFiled: April 22, 2015Publication date: January 14, 2016Inventors: Sihong GU, Yi ZHANG, Jiehua CHEN, Hongwei WU, Yuanchao WANG