公开(公告)号：US11861963B2

公开(公告)日：2024-01-02

申请号：US17017967

申请日：2020-09-11

申请人： NUCTECH COMPANY LIMITED ,  Tsinghua University

发明人： Li Zhang ,  Gang Peng ,  Qingping Huang ,  Liang Li ,  Fan Yang ,  Jiabao Chen ,  Kun Cheng ,  Zhifeng He

IPC分类号： G07C9/29 ,  G07C9/20 ,  G07C9/00

CPC分类号： G07C9/29 ,  G07C9/00182 ,  G07C9/20 ,  G07C2009/0019

摘要： The present disclosure provides a smart lock, including: a lock body and an unlocking structure; a Bluetooth communication module configured to receive a lock instruction or an unlock instruction based on Bluetooth communication; and one or more binding tags, each binding tag being associated with a Bluetooth address of the smart lock, wherein the unlocking structure is configured to lock or unlock the smart lock based on the lock instruction or the unlock instruction, or lock or unlock the smart lock based on an operation performed for the one or more binding tags. The present disclosure further provides a system and method for monitoring an object equipped with the smart lock.

公开(公告)号：US09912576B2

公开(公告)日：2018-03-06

申请号：US15099648

申请日：2016-04-15

申请人： Tsinghua University

发明人： Ke Xu ,  Fan Yang ,  Meng Shen ,  Wenlong Chen ,  Youjian Zhao

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L12/755 ,  H04L12/721 ,  H04L12/851 ,  H04L12/703 ,  H04L12/46

CPC分类号： H04L45/021 ,  H04L12/4625 ,  H04L45/28 ,  H04L45/38 ,  H04L47/2483

摘要： The present disclosure provides a method and system for detecting normalization of forwarding behavior of a router in a core routing area. The method includes: obtaining data flow received by ports of a core router; performing matching check to the data flow according to the data flow state table; if the data flow does not match the data flow state table, checking state of the data flow to calculate a state check result S(i); determining whether the data flow state table needs to be updated, if yes, updating the data flow state table; and determining whether the state check result S(i) is a trigger state, if yes, calculate state r of the forwarding behavior of the core router, and determining whether the forwarding behavior of the core router is abnormal according to the state r of the forwarding behavior of the core router, if yes, generating an alert log.

公开(公告)号：US10193232B2

公开(公告)日：2019-01-29

申请号：US15214517

申请日：2016-07-20

申请人： Tsinghua University

发明人： Fan Yang ,  Wenxing An ,  Shenheng Xu ,  Maokun Li

IPC分类号： H01Q3/46 ,  H01Q15/00

摘要： The present disclosure provides a double-layer planar phase modulation device. The double-layer planar phase modulation device includes an upper patch; and a lower patch, disposed opposite to the upper patch, in which a shape of the lower patch is similar to that of the upper patch, and the lower patch is electrically connected with the upper patch.

公开(公告)号：US12058143B2

公开(公告)日：2024-08-06

申请号：US17665735

申请日：2022-02-07

申请人： Tsinghua University

发明人： Ke Xu ,  Fan Yang ,  Bo Wu ,  Qi Li ,  Jianping Wu

IPC分类号： H04L9/40 ,  H04L9/08 ,  H04L9/32

CPC分类号： H04L63/12 ,  H04L63/0435 ,  H04L63/08 ,  H04L63/166 ,  H04L63/20 ,  H04L9/0869 ,  H04L9/3239 ,  H04L9/3271 ,  H04L63/0442

摘要： A dynamic path verification method based on reorganization of authentication fragments is proposed. The method includes: sending an initial expected path verification structure to a data packet sending end via a guarantee service node, and sending notification information to the respective routing nodes on an initial expected path; after updating the initial expected path to a new expected path, inserting the new expected path verification structure into a subsequent data packet to be sent, verifying the data packet by other nodes except a migration node, and sending the subsequent data packet to be sent to a next hop of routing node; performing the parsing verification on the received data packet by the migration node.

公开(公告)号：US11133600B2

公开(公告)日：2021-09-28

申请号：US16789703

申请日：2020-02-13

申请人： Tsinghua University

发明人： Fan Yang ,  Min Wang ,  Shenheng Xu ,  Maokun Li

IPC分类号： H01Q13/10 ,  H01Q21/06 ,  H01Q9/06 ,  H01Q9/16 ,  H01Q21/00

摘要： The present disclosure provides a spatial feeding end-fire array antenna based on electromagnetic surface technologies, including: a primary feed, configured to transmit and/or receive electromagnetic waves; and a single-layer and/or multi-layer medium-metal combination surface, configured to convert the electromagnetic waves emitted from the primary feed to an end-fire focused beam, or to concentrate space waves received in an end-fire direction into the primary feed. The single-layer and/or multi-layer medium-metal combination surface has a thickness that is equal to or less than one percent of working wavelength of the antenna.

公开(公告)号：US09972916B2

公开(公告)日：2018-05-15

申请号：US15357114

申请日：2016-11-21

申请人： Tsinghua University ,  Beijing Sense-ID Technology Co., Ltd.

发明人： Fan Yang ,  Xiangfei Xu ,  Shenheng Xu ,  Lin Gao

IPC分类号： H01Q21/06 ,  H01Q15/16 ,  H04B5/00 ,  H01Q3/02 ,  H01Q3/46 ,  H01Q1/28 ,  H01Q1/32

CPC分类号： H01Q21/061 ,  H01Q1/28 ,  H01Q1/3275 ,  H01Q3/02 ,  H01Q3/46 ,  H01Q15/16 ,  H04B5/0037

摘要： The present disclosure provides a planar array antenna. The planar array antenna includes a plurality of phase modulation surfaces, in which each phase modulation surface includes an array including a plurality of transmission phase-shift elements; and a planar power source, configured to power the plurality of phase modulation surfaces, in which each phase modulation surface is configured to modulate a transmission phase of an electromagnetic wave based on the plurality of transmission phase-shift elements, and the plurality of phase modulation surfaces are controlled to change a relative position to change the beam angle based on the corresponding transmission phases. The planar array antenna may be installed in a conformal manner on surfaces of the mobile device, such as a vehicle, an aircraft, a ship or the like.