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公开(公告)号：US09304185B2
公开(公告)日：2016-04-05
申请号：US14292853
申请日：2014-05-31
Applicant: Apple Inc.
Inventor： Abhinav R. Patel , Darin Tay , David Benjamin Millman , Jessica Noel Tsoong , Joseph Ding-Jiu Huang , Robert Mayor , Vitali Lovich
CPC classification number: G01S5/0289 , G01S5/0252 , G01S5/0284 , G01S5/0294 , H04W4/02
Abstract: Methods, systems, and computer program product for deduplicating location fingerprint data for a venue are described. A system including a location server, or a mobile device, or both, can deduplicate the location fingerprint data. Deduplicating the location fingerprint data can include identifying correlated signal sources the signals of which are mutually dependent such that measurements of one signal source can be used to predict measurements of another. The system can determine a mutual information entropy value for each pair of signal sources, and identify the correlated signal sources based on high mutual information entropy value. The system can adjust weights of the correlated signal sources in location determination
Abstract translation: 描述了用于对场地进行重复数据删除位置指纹数据的方法，系统和计算机程序产品。 包括位置服务器或移动设备或两者的系统可以对位置指纹数据进行重复数据删除。 对位置指纹数据进行重复数据删除可以包括识别信号相互依赖的相关信号源，使得可以使用一个信号源的测量来预测另一信号源的测量。 该系统可以确定每对信号源的互信息熵值，并且基于高互信息熵值来识别相关信号源。 该系统可以在位置确定中调整相关信号源的权重
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公开(公告)号：US20160094950A1
公开(公告)日：2016-03-31
申请号：US14502982
申请日：2014-09-30
Applicant: Apple Inc.
Inventor： David Benjamin Millman , Johan Olav Bergerengen , Robert Mayor , Brian Stephen Smith
CPC classification number: H04W4/026 , B61L25/025 , B61L2205/04 , G01S5/0252 , G01S5/0278 , G06N7/005 , H04W4/027 , H04W4/029
Abstract: Methods, program products, and systems for using a location fingerprint database to determine a location of a mobile device are described. A mobile device can use location fingerprint data received from a server to determine a location of the mobile device at the venue. The mobile device can obtain, from a sensor of the mobile device, a vector of sensor readings, each sensor reading can measure an environment variable, e.g., a signal received by the sensor from a signal source. The mobile device can perform a statistical match between the vector and the location fingerprint data. The mobile device can then estimate a current location of the mobile device based on the statistical match.
Abstract translation: 描述了使用位置指纹数据库来确定移动设备的位置的方法，程序产品和系统。 移动设备可以使用从服务器接收的位置指纹数据来确定移动设备在场地的位置。 移动设备可以从移动设备的传感器获得传感器读数的向量，每个传感器读数可以测量环境变量，例如传感器从信号源接收到的信号。 移动设备可以执行向量和位置指纹数据之间的统计匹配。 然后，移动设备可以基于统计匹配来估计移动设备的当前位置。
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公开(公告)号：US20160021498A1
公开(公告)日：2016-01-21
申请号：US14868813
申请日：2015-09-29
Applicant: Apple Inc.
Inventor： Abhinav R. Patel , Darin Tay , David Benjamin Millman , Jessica Noel Tsoong , Joseph Ding-Jiu Huang , Robert Mayor , Vitali Lovich
CPC classification number: G01S5/0289 , G01S5/0252 , G01S5/0284 , G01S5/0294 , H04W4/02
Abstract: Methods, systems, and computer program product for deduplicating location fingerprint data for a venue are described. A system including a location server, or a mobile device, or both, can deduplicate the location fingerprint data. Deduplicating the location fingerprint data can include identifying correlated signal sources the signals of which are mutually dependent such that measurements of one signal source can be used to predict measurements of another. The system can determine a mutual information entropy value for each pair of signal sources, and identify the correlated signal sources based on high mutual information entropy value. The system can adjust weights of the correlated signal sources in location determination.
Abstract translation: 描述了用于对场地进行重复数据删除位置指纹数据的方法，系统和计算机程序产品。 包括位置服务器或移动设备或两者的系统可以对位置指纹数据进行重复数据删除。 对位置指纹数据进行重复数据删除可以包括识别信号相互依赖的相关信号源，使得可以使用一个信号源的测量来预测另一信号源的测量。 该系统可以确定每对信号源的互信息熵值，并且基于高互信息熵值来识别相关信号源。 该系统可以在位置确定中调整相关信号源的权重。
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公开(公告)号：US20150350845A1
公开(公告)日：2015-12-03
申请号：US14503153
申请日：2014-09-30
Applicant: Apple Inc.
Inventor： Abhinav R. Patel , Darin Tay , David Benjamin Millman , Jessica Noel Tsoong , Joseph Ding-Jiu Huang , Robert Mayor , Vitali Lovich , Vojislav Samsalovic , Ashish Agarwal , Mithilesh Kumar
CPC classification number: H04W4/029 , G01S5/021 , G01S5/0236 , G01S5/0252 , H04W4/04
Abstract: Methods, systems, and computer program product for generating location fingerprint data for a venue are described. A sampling device surveying a venue can move inside the venue. While the sampling device moves, the sampling device can record environmental readings including, for example, strengths of signals from multiple radio signal sources. The sampling device can take the recording at fixed or various time intervals. Meanwhile, the sampling device can determine, based on a starting point and motion sensor readings, an estimated location of the mobile device for each time the sampling device takes the recordings. The sampling device can display a motion path of the estimated locations and a user interface item for receiving a user input for correcting the estimated locations. The sample device can tag the recorded environmental readings with the corrected locations, and submit the tagged readings to a server for determining a location fingerprint for the venue.
Abstract translation: 描述了用于为场地生成位置指纹数据的方法，系统和计算机程序产品。 调查场地的抽样装置可以在场地内移动。 当取样装置移动时，采样装置可以记录环境读数，包括例如来自多个无线电信号源的信号的强度。 采样设备可以固定或不同的时间间隔进行记录。 同时，采样装置可以基于起点和运动传感器读数，每次采样装置进行记录时，确定移动装置的估计位置。 采样设备可以显示估计位置的运动路径和用于接收用户输入的用户界面项目，用于校正估计位置。 样品设备可以用修正的位置标记记录的环境读数，并将标记的读数提交给服务器，以确定场地的位置指纹。
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公开(公告)号：US11381982B2
公开(公告)日：2022-07-05
申请号：US17071492
申请日：2020-10-15
Applicant: Apple Inc.
Inventor： Margaret Tam , David Benjamin Millman , Brian Stephen Smith , Benjamin A. Detwiler
IPC: H04W16/30 , H04W16/14 , H04W84/00 , H04W64/00 , H04W24/04 , H04W16/24 , H04L101/622 , H04W88/08
Abstract: An example method includes obtaining a plurality of data items. Each data item includes an indication of a particular location, an indication that a wireless signal from a first access point was observed at that location, and an indication of a time at which the wireless signal from the first access point was observed at that location. The method also includes determining a locational stability of the first access point based on the data items. Determining the locational stability of the first access point includes clustering the plurality of data items into one or more clusters based on the locations indicated in the plurality of data items, determining whether the N most recent data items are associated with a common cluster, and determining whether a time span between the N most recent data items exceeds a threshold period of time.
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Patent Agency Ranking
公开(公告)号：US10794986B2
公开(公告)日：2020-10-06
申请号：US15710515
申请日：2017-09-20
Applicant: Apple Inc.
Inventor： Jahshan Bhatti , David Benjamin Millman , Brian Stephen Smith , Jasvinder Singh
Abstract: A method comprising: receiving a radio map of an indoor venue using survey data collected by a survey device positioned throughout the venue, the radio map including a boundary; receiving harvest data from a mobile device, wherein at least some of the harvest data are obtained by the mobile device while the mobile device is positioned at locations that are outside of the boundary; determining, based on the harvest data, a trajectory of the mobile device, wherein at least some of the trajectory resides outside of the boundary; identifying one or more locations on or proximate to the trajectory; and extending the radio map using the survey data and the one or more identified locations, wherein the extended radio map is defined at least in part by an extension of the boundary to encompass the one or more identified locations.
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公开(公告)号：US10440574B2
公开(公告)日：2019-10-08
申请号：US15272892
申请日：2016-09-22
Applicant: Apple Inc.
Inventor： Brent M. Ledvina , David Benjamin Millman , Johan Olav Bergerengen , Robert Mayor
Abstract: Techniques and systems for unlocking a first device based on signals transmitted between the first device and a second device are disclosed. A disclosed technique includes receiving, by a first device, at least one wireless signal from a second device; transmitting, by the first device, at least one wireless signal to the second device; determining, by the first device, transit times of the at least one received wireless signal and the at least one transmitted wireless signal; determining, by the first device, one or more range measurements between the first device and the second device based at least in part on the transit times; determining, by the first device, an unlock decision based at least in part on the one or more range measurements; and causing, by at least the first device, the first device to unlock if the unlock decision is positive.
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公开(公告)号：US20180338245A1
公开(公告)日：2018-11-22
申请号：US15713493
申请日：2017-09-22
Applicant: Apple Inc.
Inventor： Margaret H. Tam , David Benjamin Millman , Brian Stephen Smith , Benjamin A. Detwiler
Abstract: An example method includes obtaining a plurality of data items. Each data item includes an indication of a particular location, an indication that a wireless signal from a first access point was observed at that location, and an indication of a time at which the wireless signal from the first access point was observed at that location. The method also includes determining a locational stability of the first access point based on the data items. Determining the locational stability of the first access point includes clustering the plurality of data items into one or more clusters based on the locations indicated in the plurality of data items, determining whether the N most recent data items are associated with a common cluster, and determining whether a time span between the N most recent data items exceeds a threshold period of time.
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公开(公告)号：US20170357788A1
公开(公告)日：2017-12-14
申请号：US15272892
申请日：2016-09-22
Applicant: Apple Inc.
Inventor： Brent M. Ledvina , David Benjamin Millman , Johan Olav Bergerengen , Robert Mayor
CPC classification number: H04W12/08 , G06F21/31 , G06F21/35 , G06F21/88 , H04W4/023 , H04W4/80 , H04W12/06
Abstract: Techniques and systems for unlocking a first device based on signals transmitted between the first device and a second device are disclosed. A disclosed technique includes receiving, by a first device, at least one wireless signal from a second device; transmitting, by the first device, at least one wireless signal to the second device; determining, by the first device, transit times of the at least one received wireless signal and the at least one transmitted wireless signal; determining, by the first device, one or more range measurements between the first device and the second device based at least in part on the transit times; determining, by the first device, an unlock decision based at least in part on the one or more range measurements; and causing, by at least the first device, the first device to unlock if the unlock decision is positive.
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公开(公告)号：US09638784B2
公开(公告)日：2017-05-02
申请号：US14868813
申请日：2015-09-29
Applicant: Apple Inc.
Inventor： Abhinav R. Patel , Darin Tay , David Benjamin Millman , Jessica Noel Tsoong , Joseph Ding-Jiu Huang , Robert Mayor , Vitali Lovich
CPC classification number: G01S5/0289 , G01S5/0252 , G01S5/0284 , G01S5/0294 , H04W4/02
Abstract: Methods, systems, and computer program product for deduplicating location fingerprint data for a venue are described. A system including a location server, or a mobile device, or both, can deduplicate the location fingerprint data. Deduplicating the location fingerprint data can include identifying correlated signal sources the signals of which are mutually dependent such that measurements of one signal source can be used to predict measurements of another. The system can determine a mutual information entropy value for each pair of signal sources, and identify the correlated signal sources based on high mutual information entropy value. The system can adjust weights of the correlated signal sources in location determination.
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