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公开(公告)号：US20220329968A1
公开(公告)日：2022-10-13
申请号：US17229794
申请日：2021-04-13
Applicant: QUALCOMM Incorporated
Inventor： Rishabh RAJ , Xiaoxin ZHANG , Parthiban ELLAPPAN , Shree Raman SRINIVASAN , Ravindra CHAUHAN
Abstract: Disclosed are systems and techniques for performing mapping using radio frequency (RF) sensing. For instance, a server can obtain a first set of RF sensing data and orientation data corresponding to a first wireless device from a plurality of wireless devices. The first set of RF sensing data can be associated with at least one received waveform that is a reflection of a transmitted waveform from a first reflector. Based on the first set of RF sensing data, orientation data, and location data corresponding to the first wireless device, an indoor map can be generated that includes a reference to the reflector.
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公开(公告)号：US20230276198A1
公开(公告)日：2023-08-31
申请号：US18043643
申请日：2021-09-22
Applicant: QUALCOMM Incorporated
Inventor： Rishabh RAJ , Xiaoxin ZHANG , Ravindra CHAUHAN
Abstract: Techniques are provided for utilizing Wi-Fi positioning based contact tracing. An example method for reporting signal measurements to a contact tracing network includes activating a contact tracing application on a user equipment based on a proximity to the contact tracing network, receiving one or more measurement signals from a station in the contact tracing network, and reporting a signal measurement and station identification to a network entity.
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Patent Agency Ranking
公开(公告)号：US20230071554A1
公开(公告)日：2023-03-09
申请号：US17470061
申请日：2021-09-09
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxin ZHANG , Le Nguyen LUONG , Liang ZHAO , Rishabh RAJ , Ravindra CHAUHAN
Abstract: Techniques are provided for improving ranging accuracy of ultrawideband (UWB) devices. An example method for obtaining a distance measurement with a wireless node includes obtaining a first distance measurement using a first radio link, determining a status of a second radio link in response to the first distance measurement being less than a threshold distance, configuring one or more transceiver parameters associated with the second radio link in response to determining the second radio link is utilizing a non-line of sight path, and obtaining a second distance measurement using the second radio link and the one or more transceiver parameters.
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公开(公告)号：US20230341535A1
公开(公告)日：2023-10-26
申请号：US18044952
申请日：2021-09-21
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxin ZHANG , Parthiban ELLAPPAN , Rishabh RAJ
CPC classification number: G01S13/04 , G01S13/50 , B60W40/08 , B60W50/14 , B60W2540/223 , B60W2540/227 , B60W2540/043
Abstract: Embodiments described herein address these and other issues by providing radio frequency (RF) sensing to determine the status of a driver or other occupant of the vehicle. RF sensing may be provided by existing radios of a vehicle, such a Wi-Fi transceiver, and may therefore provide RF sensing functionality to a vehicle with little added cost. RF sensing can be leveraged to implement safety features such as detecting an unattended child or pet in a vehicle, detecting driver alertness, and the like.
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公开(公告)号：US20220295144A1
公开(公告)日：2022-09-15
申请号：US17201497
申请日：2021-03-15
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxin ZHANG , Rishabh RAJ , Parthiban ELLAPPAN
IPC: H04N21/442 , H04B17/309 , H04N21/45
Abstract: Techniques are provided for performing radio frequency (RF) sensing to determine the viewing status of a television user. This can be used to determine user behavior during the playback of content (e.g., whether a user is watching the content), which can be used as a data point for determining the user's level of interest in the content. Using the status of the television user, embodiments can provide additional or alternative functionality, such as powering down and/or powering up the television. Furthermore, RF sensing may be performed by existing television hardware, such a Wi-Fi transceiver, and may therefore provide RF sensing functionality to a television with little or no added cost.
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6.发明申请公开(公告)号：US20220039058A1
公开(公告)日：2022-02-03
申请号：US17366984
申请日：2021-07-02
Applicant: QUALCOMM Incorporated
Inventor： Rishabh RAJ , Ravindra Chauhan , Xiaoxin Zhang
Abstract: Ranging operations may be performed between an initiator device and a responder device using data frames as opposed to fine timing measurement (FTM) frames or Null Data Packet (NDP) frames. An initiator device may request the responder device to perform a ranging operation. The responder device may transmit a data frame to the initiator device and may receive an acknowledgement (ACK) frame from the responder device. The responder device may transmit a second data frame to the initiator device that includes ranging measurement information for the previous message exchange, including a time of departure of the data frame and a time of arrival of the ACK frame. Because data frames are encrypted, the ranging measurement information is provided in a secure manner. Moreover, by including the ranging measurement information in data frames, throughput for the ranging procedure is improved.
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公开(公告)号：US20230319504A1
公开(公告)日：2023-10-05
申请号：US18326744
申请日：2023-05-31
Applicant: QUALCOMM Incorporated
Inventor： Rishabh RAJ , Xiaoxin ZHANG , Parthiban ELLAPPAN , Shree Raman SRINIVASAN , Ravindra CHAUHAN
Abstract: Disclosed are systems and techniques for performing mapping using radio frequency (RF) sensing. For instance, a server can obtain a first set of RF sensing data and orientation data corresponding to a first wireless device from a plurality of wireless devices. The first set of RF sensing data can be associated with at least one received waveform that is a reflection of a transmitted waveform from a first reflector. Based on the first set of RF sensing data, orientation data, and location data corresponding to the first wireless device, an indoor map can be generated that includes a reference to the reflector.
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