公开(公告)号：US11846716B2

公开(公告)日：2023-12-19

申请号：US17250865

申请日：2019-10-03

申请人： Inventio AG

发明人： Florian Troesch ,  Armin Wittneben ,  Gregor Dumphart ,  Marc Kuhn

IPC分类号： G01S5/02

CPC分类号： G01S5/02521 ,  G01S5/02523 ,  G01S5/02525 ,  G01S5/02528

摘要： A system for determining a position of a user in a building includes a control device, a plurality of stationary radio signal transmission devices, a radio signal receiving device, and a signal processing device. The signal processing device determines primary channel impulse responses based on the radio signals received by the receiving device. The signal processing device also determines a secondary channel impulse response based on a secondary radio signal received by the receiving device from a mobile device of a user. The channel impulse responses are evaluated to determine degrees of similarity that indicate how similar a first primary channel impulse response and the secondary channel impulse response are to one another. For each degree of similarity, a distance of the mobile device from the transmission device corresponding to the degree of similarity is determined. A position of the mobile device is determined based on the distances.

公开(公告)号：US11815614B2

公开(公告)日：2023-11-14

申请号：US17851154

申请日：2022-06-28

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Mark A. Cuddihy ,  Eric L. Reed ,  Manoharprasad K Rao ,  Thomas Lee Miller

IPC分类号： G01S5/02 ,  G01S5/14

CPC分类号： G01S5/02525 ,  G01S5/0226 ,  G01S5/0252 ,  G01S5/0257 ,  G01S5/0284 ,  G01S5/14

摘要： A system includes a plurality of wireless transmitters and a processor configured to: receive, from a mobile device, signal strengths of signals from the wireless transmitters as detected by the mobile device. The processor is also configured to determine a location of the mobile device in a vehicle, based on a distance from the mobile device to each of the wireless transmitters, as indicated by the received signal strengths and store the location of the mobile device as an occupant location.

公开(公告)号：US11808874B2

公开(公告)日：2023-11-07

申请号：US17811789

申请日：2022-07-11

申请人： Juniper Networks, Inc.

发明人： Neal Dante Castagnoli

IPC分类号： G01S5/06 ,  G01S5/02 ,  G01S3/48

CPC分类号： G01S5/06 ,  G01S5/0278 ,  G01S5/02521 ,  G01S5/02525 ,  G01S5/02528 ,  G01S3/48

摘要： Disclosed are embodiments for determining a location of a device based on phase differences of a signal received from the device. In some embodiments, expected phase differences for signals transmitted from a plurality of regions are determined. The expected phase differences are those differences of the signal when received at each of a plurality of receive elements of a receiving device. By comparing phase differences of a signal received from the device to the expected phase differences, a location of the device is determined.

公开(公告)号：US11662420B2

公开(公告)日：2023-05-30

申请号：US16921681

申请日：2020-07-06

申请人： HERE Global B.V.

发明人： Mika Viitala ,  Marko Luomi

IPC分类号： G01S5/02 ,  H04B17/391

CPC分类号： G01S5/02523 ,  G01S5/02525 ,  H04B17/391

摘要： A method includes obtaining or holding available first radio map information representing a first radio map for a first environment. The method also includes determining, at least partially based on said first radio map information, second radio map information representing a second radio map for a second environment. The second radio map contains or represents a respective radio coverage model for each radio device of a group of radio devices. A portion of the second environment at least partially covers the first environment. A density of radio coverage models contained in or represented by said second radio map in the portion of said second environment and at least partially covering the first environment is higher than a density of radio coverage models contained in or represented by the second radio map in a remaining portion of the second environment. A corresponding apparatus and computer program product are also provided.