公开(公告)号：US20230072792A1

公开(公告)日：2023-03-09

申请号：US17411219

申请日：2021-08-25

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： LIOR LIMONAD ,  Dean Haber ,  Ashafaaq Minhas ,  John Maxwell Cohn ,  MARC PH. STOECKLIN ,  Nirmit V Desai ,  Jonathan Muehlstein

IPC: H04W4/02 ,  G01S5/30 ,  G06K9/00 ,  H04W4/80

Abstract: A method of determining a range between two devices, which can for instance be wireless devices, such as handheld devices. The method performs a double-sided two-way ranging protocol at the two devices. This protocol causes the two devices to transmit and receive signals, with a view to determining the range between the two devices, using a two-way ranging methods, where each of the signals is a composite tone generated as a composition of two waveforms that are timewise separated by a gap to form a bipolar waveform. The gap is a zero or low-amplitude signal, contrasting with the two waveforms. The particular pattern in the correlation footprint eases the determination of the time of flight. The method can be used to measure social distancing.

公开(公告)号：US20240031519A1

公开(公告)日：2024-01-25

申请号：US17872564

申请日：2022-07-25

Applicant: International Business Machines Corporation

Inventor： Aaron K. Baughman ,  Micah Forster ,  Ashafaaq Minhas ,  Sarbajit K. Rakshit

IPC: H04N5/272 ,  H04N13/117 ,  H04N13/243

CPC classification number: H04N5/2723 ,  H04N13/117 ,  H04N13/243

Abstract: Video of a plurality of fields of view of a scene is captured, each field of view comprising data of the scene from a different vantage point. An excitement level is determined by analyzing a portion of the captured video. Using the excitement level, a time series of future excitement levels is forecast. Using the time series of future excitement levels, a virtual field of view path of the scene is forecast. An insert image is determined to be included in the virtual field of view path. Captured data from at least two video cameras in the plurality of video cameras is composited into a virtual field of view of the scene. A rendering of the insert image is inserted into the virtual field of view.

公开(公告)号：US11856478B2

公开(公告)日：2023-12-26

申请号：US17411219

申请日：2021-08-25

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Lior Limonad ,  Dean Haber ,  Ashafaaq Minhas ,  John Maxwell Cohn ,  Marc PH. Stoecklin ,  Nirmit V Desai ,  Jonathan Muehlstein

IPC: H04W64/00 ,  H04W4/02 ,  G01S5/30 ,  H04W4/80

CPC classification number: H04W4/023 ,  G01S5/30 ,  H04W4/80 ,  G06F2218/10 ,  G06F2218/12

Abstract: A method of determining a range between two devices, which can for instance be wireless devices, such as handheld devices. The method performs a double-sided two-way ranging protocol at the two devices. This protocol causes the two devices to transmit and receive signals, with a view to determining the range between the two devices, using a two-way ranging methods, where each of the signals is a composite tone generated as a composition of two waveforms that are timewise separated by a gap to form a bipolar waveform. The gap is a zero or low-amplitude signal, contrasting with the two waveforms. The particular pattern in the correlation footprint eases the determination of the time of flight. The method can be used to measure social distancing.