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公开(公告)号：US10327213B1
公开(公告)日：2019-06-18
申请号：US15284496
申请日：2016-10-03
Applicant: Origin Wireless, Inc.
Inventor： Yi Han , Yu-Han Yang , Yan Chen , K. J. Ray Liu , Hang Ma , Beibei Wang , Hung-Quoc Duc Lai , Zoltan Safar , Qinyi Xu , Chen Chen
Abstract: An apparatus for determining symbol timing in a communication system is provided. The apparatus includes a memory communicatively coupled to at least one processor. The at least one processor is configured to receive a first signal that includes a preamble sent at a first sampling rate with a first modulation through a channel and a data frame sent at a second sampling rate with a second modulation through the channel. The preamble includes a received code sequence, and the data frame includes a plurality of data symbols. The at least one processor is configured to compute a second signal that represents an estimate of an equivalent channel response using at least one of a known code sequence and the received first signal, down-sample the second signal and compute signal-to-interference-plus-noise ratios at a plurality of candidate timing offsets, and determine a symbol timing based on a particular timing offset associated with one of the computed signal-to-interference-plus-noise ratios.
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公开(公告)号：US20190097865A1
公开(公告)日：2019-03-28
申请号：US16203299
申请日：2018-11-28
Applicant: ORIGIN WIRELESS, INC.
Inventor： Qinyi XU , Feng Zhang , Chen Chen , Beibei Wang , Chenshu Wu , Hangfang Zhang , Chau-Wai Wong , David N. Claffey , Chun-I Chen , Hung-Quoc Duc Lai , Zhung-Han Wu , Min Wu , Yi Han , Oscar Chi-Lim Au , K. J. Ray Liu
CPC classification number: H04L27/362 , H04B1/38 , H04W72/0413
Abstract: Apparatus, systems and methods for recognizing and classifying events in a venue based on a wireless signal are disclosed. In one example, a disclosed system comprises a first transmitter, a second transmitter, at least one first receiver, at least one second receiver, and an event recognition engine, in the venue. The first transmitter transmits a training wireless signal through a wireless multipath channel impacted by a known event in the venue in a training time period associated with the known event. Each first receiver receives asynchronously the training wireless signal, and obtains, asynchronously based on the training wireless signal, at least one time series of training channel information of the wireless multipath channel between the first receiver and the first transmitter. The second transmitter transmits a current wireless signal through the wireless multipath channel impacted by a current event in a current time period associated with the current event. Each second receiver receives asynchronously the current wireless signal, and obtains, asynchronously based on the current wireless signal, at least one time series of current channel information of the wireless multipath channel between the second receiver and the second transmitter. The event recognition engine trains a classifier based on the training channel information; and apples the classifier to: classify the current channel information and associate the current event with at least one of: a known event, an unknown event and another event.
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公开(公告)号：US10742475B2
公开(公告)日：2020-08-11
申请号：US16446589
申请日：2019-06-19
Applicant: ORIGIN WIRELESS, INC.
Inventor： Hung-Quoc Duc Lai , David N. Claffey , Chen Chen , Feng Zhang , Chenshu Wu , Chau-Wai Wong , Beibei Wang , Oscar Chi-Lim Au , K. J. Ray Liu
Abstract: Method, apparatus and systems for object tracking are disclosed. In one example, a system for tracking a plurality of objects in a venue is disclosed. The system comprises a transmitter configured for transmitting a series of probe signals in a broadcasting manner through a wireless multipath channel, wherein the wireless multipath channel is impacted by a movement of at least one of the plurality of objects in the venue; and a plurality of heterogeneous target wireless receivers each of which is associated with an object of the plurality of objects in the venue. Each of the plurality of heterogeneous target wireless receivers is configured for: receiving the series of probe signals through the wireless multipath channel between the heterogeneous target wireless receiver and the transmitter, obtaining at least one time series of channel information (TSCI) of the wireless multipath channel based on the series of probe signals received by the heterogeneous target wireless receiver, and tracking the object associated with the heterogeneous target wireless receiver based on the at least one TSCI.
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公开(公告)号：US10397039B2
公开(公告)日：2019-08-27
申请号：US16203317
申请日：2018-11-28
Applicant: ORIGIN WIRELESS, INC.
Inventor： Feng Zhang , Chen Chen , Qinyi Xu , Beibei Wang , Chenshu Wu , Hangfang Zhang , Chau-Wai Wong , David N. Claffey , Chun-I Chen , Hung-Quoc Duc Lai , Zhung-Han Wu , Min Wu , Yi Han , Oscar Chi-Lim Au , K. J. Ray Liu
Abstract: Apparatus, systems and methods for detecting and monitoring fall-down actions and other transient motions are disclosed. In one example, a system for monitoring a transient motion in a venue is disclosed. The system comprises a transmitter, a receiver, and a transient motion monitor. The transmitter is located at a first position in the venue for transmitting a wireless signal through a wireless multipath channel impacted by the transient motion of an object in the venue. The receiver is located at a second position in the venue for: receiving the wireless signal through the wireless multipath channel, and obtaining a time series of channel information (CI) of the wireless multipath channel based on the wireless signal. The transient motion monitor is configured for: monitoring the transient motion based on the time series of CI, and triggering a response action based on the monitored transient motion.
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公开(公告)号：US20170188359A1
公开(公告)日：2017-06-29
申请号：US15384217
申请日：2016-12-19
Applicant: Origin Wireless, Inc.
Inventor： K.J. Ray Liu , Hung-Quoc Duc Lai , Beibei Wang , Qinyi Xu , Chen Chen , Feng Zhang , Yi Han , Zhung-Han Wu , Zoltan Safar , Oscar Chi-Lim Au
CPC classification number: H04W72/0446 , H04L5/0057 , H04W52/143 , H04W52/247 , H04W52/34 , H04W72/0413 , H04W72/042 , H04W72/085
Abstract: A time-reversal wireless system comprising a first wireless transceiver of a time-reversal client, one or more second wireless transceiver and/or a time-reversal client with the first wireless transceiver. The first wireless transceiver of the time-reversal client is wirelessly coupled to the one or more second wireless transceiver through a wireless broadband multipath channel associated with a space. The time-reversal client contains the first wireless transceiver. The time-reversal client also contains a processor and a memory configured to obtain a set of channel state information (CSI) in a channel probing phase, and/or to obtain a set of location-specific signatures based on the set of CSI and/or a time reversal operation in a channel probing phase. The set of CSI is captured when one or more probing signal is sent either from the first wireless transceiver to each of the at least one second wireless transceiver, or from each of the at least one second wireless transceiver to the first wireless transceiver, through the wireless broadband multipath channel associated with the space. A channel passband with bandwidth W0 is associated with the wireless broadband multipath channel. A first passband with bandwidth W1 is associated with the first wireless transceiver. The W1 is not larger than W0 such that the first passband is part of the channel passband. One or more second passband is associated with the one or more second wireless transceiver such that a bandwidth W2 associated with each of the one or more second passband is not larger than W1 such that the each of the one or more second passband is part of the first passband. Each of the set of CSI include a channel impulse response, a channel frequency response, and/or another channel state data of the wireless broadband multipath channel.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10833912B2
公开(公告)日：2020-11-10
申请号：US16125748
申请日：2018-09-09
Applicant: ORIGIN WIRELESS, INC.
Inventor： Oscar Chi-Lim Au , Masato Marumo , Beibei Wang , Hung-Quoc Duc Lai , K. J. Ray Liu , Chen Chen , Qinyi Xu , Yi Han , Zhung-Han Wu , Feng Zhang , Zoltan Safar , Jeng-Feng Lee , Thomas Nelson Buttermore, Jr.
Abstract: The present teaching relates to wireless Internet of Things. In one example, a time reversal client is disclosed. The time reversal client comprises a processor, a memory communicatively coupled with the processor, and a set of instructions, when executed by the processor based on the memory, that cause the time reversal client to perform the following steps: communicatively coupling with a time reversal server through a network, obtaining a set of channel state information (CSI), wherein the set of CSI is captured when at least one probing signal is sent from the wireless transmitter to the wireless receiver through a wireless multipath channel associated with a space, and causing the set of CSI to be sent to the time reversal server through the network.
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公开(公告)号：US10735298B2
公开(公告)日：2020-08-04
申请号：US16200608
申请日：2018-11-26
Applicant: ORIGIN WIRELESS, INC.
Inventor： Chen Chen , Feng Zhang , Qinyi Xu , Beibei Wang , Chenshu Wu , Hangfang Zhang , Chau-Wai Wong , David N. Claffey , Chun-I Chen , Hung-Quoc Duc Lai , Zhung-Han Wu , Min Wu , Yi Han , Oscar Chi-Lim Au , K. J. Ray Liu
Abstract: Methods, apparatus and systems for detecting and monitoring vital signs and other periodic motions of an object are disclosed. In one example, a system for monitoring object motion in a venue is disclosed. The system comprises a transmitter, a receiver, and a vital sign estimator. The transmitter is located at a first position in the venue and configured for transmitting a wireless signal through a wireless multipath channel impacted by a pseudo-periodic motion of an object in the venue. The receiver is located at a second position in the venue and configured for: receiving the wireless signal through the wireless multipath channel impacted by the pseudo-periodic motion of the object in the venue, and obtaining at least one time series of channel information (TSCI) of the wireless multipath channel based on the wireless signal. The vital sign estimator is configured for: determining that at least one portion of the at least one TSCI in a current sliding time window is associated with the pseudo-periodic motion of the object in the venue, and computing a current characteristics related to the pseudo-periodic motion of the object in the current sliding time window based on at least one of: the at least one portion of the at least one TSCI in the current sliding time window, at least one portion of the at least one TSCI in a past sliding time window, and a past characteristics related to the pseudo-periodic motion of the object in the past sliding time window.
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公开(公告)号：US20190327124A1
公开(公告)日：2019-10-24
申请号：US16446589
申请日：2019-06-19
Applicant: ORIGIN WIRELESS, INC.
Inventor： Hung-Quoc Duc Lai , David N. Claffey , Chen Chen , Feng Zhang , Chenshu Wu , Chau-Wai Wong , Beibei Wang , Oscar Chi-Lim Au , K. J. Ray Liu
Abstract: Method, apparatus and systems for object tracking are disclosed. In one example, a system for tracking a plurality of objects in a venue is disclosed. The system comprises a transmitter configured for transmitting a series of probe signals in a broadcasting manner through a wireless multipath channel, wherein the wireless multipath channel is impacted by a movement of at least one of the plurality of objects in the venue; and a plurality of heterogeneous target wireless receivers each of which is associated with an object of the plurality of objects in the venue. Each of the plurality of heterogeneous target wireless receivers is configured for: receiving the series of probe signals through the wireless multipath channel between the heterogeneous target wireless receiver and the transmitter, obtaining at least one time series of channel information (TSCI) of the wireless multipath channel based on the series of probe signals received by the heterogeneous target wireless receiver, and tracking the object associated with the heterogeneous target wireless receiver based on the at least one TSCI.
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公开(公告)号：US10380881B2
公开(公告)日：2019-08-13
申请号：US16060710
申请日：2016-12-09
Applicant: ORIGIN WIRELESS, INC.
Inventor： Qinyi Xu , Feng Zhang , Chen Chen , Beibei Wang , Zoltan Safar , Yi Han , Hung-Quoc Duc Lai , K. J. Ray Liu
IPC: G08B13/18 , G08B29/18 , G01S13/04 , G08B13/08 , G08B13/187 , G01S13/00 , G01S13/536 , G01S13/88 , G01S13/56 , G08B13/181 , H04B7/06 , H04W4/80 , H04W84/12
Abstract: An apparatus for detecting events includes a processor and a storage device storing instructions that when executed by the processor cause the processor to train a classifier for classifying channel state information (CSI) and detecting an event based on the classification of the CSI obtained during a monitoring phase. The training of the classifier includes: for each of the known events to be detected, during a time period in which the known event occurs in a venue, obtain training CSI of a wireless multipath channel between a wireless transmitter and a wireless receiver in the venue, in which the training CSI is derived from one or more probing signals sent from the transmitter through the wireless multipath channel to the receiver, and train the classifier based on the known events and the training CSI associated with each of the events.
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公开(公告)号：US20180365975A1
公开(公告)日：2018-12-20
申请号：US16060710
申请日：2016-12-09
Applicant: ORIGIN WIRELESS, INC.
Inventor： Qinyi Xu , Feng Zhang , Chen Chen , Beibei Wang , Zoltan Safar , Yi Han , Hung-Quoc Duc Lai , K. J. Ray Liu
IPC: G08B29/18 , G08B13/181 , H04B7/06 , G01S13/00 , G01S13/56
CPC classification number: G08B29/185 , G01S7/415 , G01S13/003 , G01S13/04 , G01S13/536 , G01S13/56 , G01S13/88 , G01V3/12 , G08B13/08 , G08B13/181 , G08B13/187 , H04B7/0626 , H04W4/80 , H04W84/12
Abstract: An apparatus for detecting events includes a processor and a storage device storing instructions that when executed by the processor cause the processor to train a classifier for classifying channel state information (CSI) and detecting an event based on the classification of the CSI obtained during a monitoring phase. The training of the classifier includes: for each of the known events to be detected, during a time period in which the known event occurs in a venue, obtain training CSI of a wireless multipath channel between a wireless transmitter and a wireless receiver in the venue, in which the training CSI is derived from one or more probing signals sent from the transmitter through the wireless multipath channel to the receiver, and train the classifier based on the known events and the training CSI associated with each of the events.
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