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公开(公告)号：US10911211B1
公开(公告)日：2021-02-02
申请号：US16588722
申请日：2019-09-30
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Daniel M. Jacker , Mainak Chowdhury , Alexander Hooshmand
IPC: H04L7/00 , H04B17/309 , H04B17/21 , H04B17/11
Abstract: A method includes, at a first node: transmitting a first calibration signal at a first time-of-departure measured by the first node; and transmitting a second calibration signal at a second time-of-departure measured by the first node. The method also includes, at a second node: receiving the first calibration signal at a first time-of-arrival measured by the second node; and receiving the second calibration signal at a second time-of-arrival measured by the second node. The method further includes: defining a first calibration point and a second calibration point in a set of calibration points, each calibration point comprising a time-of-departure and a time-of-arrival of each calibration signal; calculating a regression on the set of calibration points; and calculating a frequency offset between the first node and the second node based on the first regression.
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公开(公告)号：US20190356466A1
公开(公告)日：2019-11-21
申请号：US16405922
申请日：2019-05-07
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Mainak Chowdhury , Alexander Hooshmand , Daniel M. Jacker
Abstract: A method includes, at a first node: transmitting a first synchronization signal at a first time according to a first clock of the first node; back-coupling the first synchronization signal to generate a first self-receive signal; calculating a time-of-arrival of the first self-receive signal according to the first clock; and calculating a time-of-arrival of the second synchronization signal according to the first clock. The method also includes, at the second node: transmitting the second synchronization signal at a second time according to a second clock of the second node; back-coupling the second synchronization signal to generate a second self-receive signal; calculating a time-of-arrival of the second self-receive signal according to the second clock; and calculating a time-of-arrival of the first synchronization signal according to the second clock. The method S100 further includes calculating a time bias and a propagation delay between the pair of nodes based on the time-of-arrivals.
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公开(公告)号：US12081643B2
公开(公告)日：2024-09-03
申请号：US17590621
申请日：2022-02-01
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Mainak Chowdhury , Alexander Hooshmand , Daniel M. Jacker
CPC classification number: H04L7/08 , H04L7/0016 , H04L7/041 , H04W64/003
Abstract: A method includes, at a first node: transmitting a first synchronization signal at a first time according to a first clock of the first node; back-coupling the first synchronization signal to generate a first self-receive signal; calculating a time-of-arrival of the first self-receive signal according to the first clock; and calculating a time-of-arrival of the second synchronization signal according to the first clock. The method also includes, at the second node: transmitting the second synchronization signal at a second time according to a second clock of the second node; back-coupling the second synchronization signal to generate a second self-receive signal; calculating a time-of-arrival of the second self-receive signal according to the second clock; and calculating a time-of-arrival of the first synchronization signal according to the second clock. The method S100 further includes calculating a time bias and a propagation delay between the pair of nodes based on the time-of-arrivals.
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公开(公告)号：US11909852B1
公开(公告)日：2024-02-20
申请号：US18113542
申请日：2023-02-23
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Daniel M. Jacker , Mainak Chowdhury , Alexander Hooshmand
IPC: H04B7/06 , H04L7/00 , H04B17/309 , H04B17/21 , H04B17/11
CPC classification number: H04L7/0012 , H04B17/11 , H04B17/21 , H04B17/309
Abstract: A method includes, at a first node: transmitting a first calibration signal at a first time-of-departure measured by the first node; and transmitting a second calibration signal at a second time-of-departure measured by the first node. The method also includes, at a second node: receiving the first calibration signal at a first time-of-arrival measured by the second node; and receiving the second calibration signal at a second time-of-arrival measured by the second node. The method further includes: defining a first calibration point and a second calibration point in a set of calibration points, each calibration point comprising a time-of-departure and a time-of-arrival of each calibration signal; calculating a regression on the set of calibration points; and calculating a frequency offset between the first node and the second node based on the first regression.
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公开(公告)号：US20220158816A1
公开(公告)日：2022-05-19
申请号：US17590621
申请日：2022-02-01
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Mainak Chowdhury , Alexander Hooshmand , Daniel M. Jacker
Abstract: A method includes, at a first node: transmitting a first synchronization signal at a first time according to a first clock of the first node; back-coupling the first synchronization signal to generate a first self-receive signal; calculating a time-of-arrival of the first self-receive signal according to the first clock; and calculating a time-of-arrival of the second synchronization signal according to the first clock. The method also includes, at the second node: transmitting the second synchronization signal at a second time according to a second clock of the second node; back-coupling the second synchronization signal to generate a second self-receive signal; calculating a time-of-arrival of the second self-receive signal according to the second clock; and calculating a time-of-arrival of the first synchronization signal according to the second clock. The method S100 further includes calculating a time bias and a propagation delay between the pair of nodes based on the time-of-arrivals.
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Patent Agency Ranking
公开(公告)号：US10833840B2
公开(公告)日：2020-11-10
申请号：US16405922
申请日：2019-05-07
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Mainak Chowdhury , Alexander Hooshmand , Daniel M. Jacker
Abstract: A method includes, at a first node: transmitting a first synchronization signal at a first time according to a first clock of the first node; back-coupling the first synchronization signal to generate a first self-receive signal; calculating a time-of-arrival of the first self-receive signal according to the first clock; and calculating a time-of-arrival of the second synchronization signal according to the first clock. The method also includes, at the second node: transmitting the second synchronization signal at a second time according to a second clock of the second node; back-coupling the second synchronization signal to generate a second self-receive signal; calculating a time-of-arrival of the second self-receive signal according to the second clock; and calculating a time-of-arrival of the first synchronization signal according to the second clock. The method S100 further includes calculating a time bias and a propagation delay between the pair of nodes based on the time-of-arrivals.
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公开(公告)号：US20240396703A1
公开(公告)日：2024-11-28
申请号：US18789449
申请日：2024-07-30
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Mainak Chowdhury , Alexander Hooshmand , Daniel M. Jacker
Abstract: A method includes, at a first node: transmitting a first synchronization signal at a first time according to a first clock of the first node; back-coupling the first synchronization signal to generate a first self-receive signal; calculating a time-of-arrival of the first self-receive signal according to the first clock; and calculating a time-of-arrival of the second synchronization signal according to the first clock. The method also includes, at the second node: transmitting the second synchronization signal at a second time according to a second clock of the second node; back-coupling the second synchronization signal to generate a second self-receive signal; calculating a time-of-arrival of the second self-receive signal according to the second clock; and calculating a time-of-arrival of the first synchronization signal according to the second clock. The method S100 further includes calculating a time bias and a propagation delay between the pair of nodes based on the time-of-arrivals.
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公开(公告)号：US11632226B1
公开(公告)日：2023-04-18
申请号：US17586241
申请日：2022-01-27
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Daniel M. Jacker , Mainak Chowdhury , Alexander Hooshmand
IPC: H04L7/00 , H04B17/309 , H04B17/21 , H04B17/11
Abstract: A method includes, at a first node: transmitting a first calibration signal at a first time-of-departure measured by the first node; and transmitting a second calibration signal at a second time-of-departure measured by the first node. The method also includes, at a second node: receiving the first calibration signal at a first time-of-arrival measured by the second node; and receiving the second calibration signal at a second time-of-arrival measured by the second node. The method further includes: defining a first calibration point and a second calibration point in a set of calibration points, each calibration point comprising a time-of-departure and a time-of-arrival of each calibration signal; calculating a regression on the set of calibration points; and calculating a frequency offset between the first node and the second node based on the first regression.
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公开(公告)号：US11271713B2
公开(公告)日：2022-03-08
申请号：US17025635
申请日：2020-09-18
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Mainak Chowdhury , Alexander Hooshmand , Daniel M. Jacker
Abstract: A method includes, at a first node: transmitting a first synchronization signal at a first time according to a first clock of the first node; back-coupling the first synchronization signal to generate a first self-receive signal; calculating a time-of-arrival of the first self-receive signal according to the first clock; and calculating a time-of-arrival of the second synchronization signal according to the first clock. The method also includes, at the second node: transmitting the second synchronization signal at a second time according to a second clock of the second node; back-coupling the second synchronization signal to generate a second self-receive signal; calculating a time-of-arrival of the second self-receive signal according to the second clock; and calculating a time-of-arrival of the first synchronization signal according to the second clock. The method S100 further includes calculating a time bias and a propagation delay between the pair of nodes based on the time-of-arrivals.
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公开(公告)号：US20210006389A1
公开(公告)日：2021-01-07
申请号：US17025635
申请日：2020-09-18
Applicant: ZaiNar, Inc.
Inventor： Philip A. Kratz , Mainak Chowdhury , Alexander Hooshmand , Daniel M. Jacker
Abstract: A method includes, at a first node: transmitting a first synchronization signal at a first time according to a first clock of the first node; back-coupling the first synchronization signal to generate a first self-receive signal; calculating a time-of-arrival of the first self-receive signal according to the first clock; and calculating a time-of-arrival of the second synchronization signal according to the first clock. The method also includes, at the second node: transmitting the second synchronization signal at a second time according to a second clock of the second node; back-coupling the second synchronization signal to generate a second self-receive signal; calculating a time-of-arrival of the second self-receive signal according to the second clock; and calculating a time-of-arrival of the first synchronization signal according to the second clock. The method S100 further includes calculating a time bias and a propagation delay between the pair of nodes based on the time-of-arrivals.
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