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公开(公告)号：US20230189000A1
公开(公告)日：2023-06-15
申请号：US18078879
申请日：2022-12-09
发明人： Claudio REY
IPC分类号： H04W12/122
CPC分类号： H04W12/122 , H04W56/0015
摘要： Techniques are described to improve the security of frame synchronization detection between wireless devices in high accuracy positioning (HAP) applications using personal area networks (PANs). A receiver may detect whether a frame synchronization pattern has been manipulated by comparing the sampled data of the received frame synchronization pattern with a reference waveform predicted as the frame synchronization pattern. The receiver may reuse the data in the correlation buffer at the moment a correlator finds a peak and declares that the synchronization pattern is found. The correlator may also provide fractional timing information associated with the correlation peak for the receiver to create a delayed reference phase differential pattern. The receiver may subtract the data in the correlation buffer by the delayed reference differential data and look for absolute deviations in the output of such subtraction that exceed a predetermined threshold. Specific patterns or signatures of error may also be analyzed.
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52.发明授权公开(公告)号：US11678183B2
公开(公告)日：2023-06-13
申请号：US17495438
申请日：2021-10-06
发明人： Hui Luo , Hongwei Kong , Kaiping Li , Sungeun Lee , Sridhar Prakasam
IPC分类号： H04W4/00 , H04W12/06 , H04W12/08 , H04W8/00 , H04W48/16 , H04L9/40 , H04W4/80 , H04W88/16 , H04W84/12 , H04W88/08
CPC分类号： H04W12/06 , H04L63/0428 , H04W4/80 , H04W8/005 , H04W12/08 , H04W48/16 , H04W84/12 , H04W88/08 , H04W88/16
摘要： Devices, systems and methods use a first communication interface to connect with a local device via a first protocol and use a second communication interface to connect with a server via a second protocol. Embodiments relay secure communications between the local device and the server for authentication of the at least one local device by the server and responsive to authentication of the local device by the server, transmit information for storage in a secure memory of the authenticated local device.
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公开(公告)号：US11650307B2
公开(公告)日：2023-05-16
申请号：US17030720
申请日：2020-09-24
发明人： Pouria Zand , Kiran Uln
IPC分类号： G01S13/84 , G01S7/02 , H04B17/345 , G01S7/35
CPC分类号： G01S13/84 , G01S7/023 , G01S7/354 , H04B17/345 , G01S7/358
摘要： A multicarrier phase ranging system and method are provided. Generally, the method includes performing a handshake between first and a second transceiver to negotiate a list of channels and a start-time for a multicarrier phase ranging process. The process includes in a first cycle exchanging a Constant Tone (CT) between the first and second transceiver in a first epoch on a first channel, and processing the CT received in the first and second transceiver to measure a difference in phase between the CT received and a reference signal. The CT received is checked for interference using software or hardware in either or both of the first and second transceiver. If no interference is detected the first and second transceiver switch to another channel and exchange the CT at a next epoch. If interference is detected, at least one channel is skipped for at least a subsequent epoch.
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公开(公告)号：US20230122105A1
公开(公告)日：2023-04-20
申请号：US17967735
申请日：2022-10-17
发明人： Vibheesh BHARATHAN
IPC分类号： G06F1/324 , G06F1/3234 , G06F1/3228
摘要： Disclosed are sensing systems and methods that eliminate CPU intervention or interrupts when performing sensor scans of a touch interface, supports low power sensing operation without requiring periodic wake up of the CPU, and is scalable to multi-channel or multi-chip sensor configuration to support large touch screens or a high number of sensors. Sensor scanning is configured and controlled by an autonomous engine and comparison is completed by wake-up detection logic, operable without CPU interaction.
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公开(公告)号：US11601832B2
公开(公告)日：2023-03-07
申请号：US17377896
申请日：2021-07-16
IPC分类号： H04W24/08 , H04B17/318 , H04W72/08 , H04W52/02 , H04B17/336 , H04L67/12 , H04W84/12
摘要： Disclosed are methods and systems for delaying packet transmissions over a wireless communication channel until a more favorable channel condition is detected. A device may measure a channel metric when it receives periodic beacon signals. The device may compare the channel metric against a programmed metric threshold. If the channel metric is less than the metric threshold, the device may delay the transmission of a packet until a later transmission window or transmit opportunity (TXOP) when the channel metric rises above the metric threshold, indicating the presence of a more favorable condition for transmission, or until a preconfigured timeout period elapses before the more favorable condition is found.
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公开(公告)号：US20230061086A1
公开(公告)日：2023-03-02
申请号：US17463706
申请日：2021-09-01
发明人： Alan Merlock , Greg Gangitano , Kenneth Lap-Yu Ma , Bradley Evans
摘要： Systems, methods, and devices implement supplemental scanning for establishing network connections in wireless networks. Methods include sending a request to a wireless device, the request including a plurality of scanning parameters, the plurality of scanning parameters identifying a plurality of requested wireless network parameters. Methods also include receiving a reply from the wireless device, the reply including a result of one or more scanning operations performed based on the plurality of scanning parameters. Methods further include selecting, using one or more processors, one or more network connection operations based, at least in part, on the result of the one or more scanning operations, the one or more network connection operations identifying a timing relative to a plurality of wireless projection packets. Methods additionally include performing, using the one or more processors, the one or more network connection operations based, at least in part, on the identified timing.
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57.发明授权公开(公告)号：US11595972B2
公开(公告)日：2023-02-28
申请号：US16577888
申请日：2019-09-20
IPC分类号： H04W72/12 , H04W72/04 , H04W4/80 , H04W72/1263 , H04W72/0446
摘要： A method can include at a combination device, receiving or generating a slot availability mask (SAM) information compatible with a Bluetooth and/or Bluetooth Low Energy (BT) standard; by operation of BT compatible circuits of the combination device, determining a schedule of BT compatible data transfers in response to at least the SAM information; and by operation of circuits compatible with at least one IEEE 802.11 wireless standard (WLAN circuits), determining a schedule of WLAN compatible data transfers in response to at least the SAM information. Related systems and methods are also disclosed.
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公开(公告)号：US11594066B2
公开(公告)日：2023-02-28
申请号：US17078037
申请日：2020-10-22
发明人： Roman Ogirko , Hans Klein , David G. Wright , Igor Kolych , Andriy Maharyta , Hassane El-Khoury , Oleksandr Karpin , Oleksandr Hoshtanar , Igor Kravets
IPC分类号： G06V40/13 , A61B46/10 , A61B42/10 , A61B42/20 , H01S3/213 , A61B18/00 , H01S3/131 , A61B17/00 , A61B18/20 , H01S3/02 , H01S3/092
摘要： A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.
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59.发明申请公开(公告)号：US20230055594A1
公开(公告)日：2023-02-23
申请号：US17959489
申请日：2022-10-04
发明人： David Hong
IPC分类号： H04B1/10 , H04B17/318
摘要： Example systems and methods of a wireless device use a signal attribute detector to determine a signal attribute value associated with a first frame received via a first antenna. Media access control (MAC) logic can detect that the first frame indicates an acknowledgement (ACK) of a second frame transmitted by the wireless device. Responsive to the detection of the ACK by the MAC logic, an antenna evaluator uses the signal attribute value to select one of the first antenna and the second antenna to transmit or receive a third frame.
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公开(公告)号：US20230054336A1
公开(公告)日：2023-02-23
申请号：US17951626
申请日：2022-09-23
发明人： Ayush Sood , Suprojit Mukherjee
IPC分类号： H04L25/03 , H04L25/497
摘要： Systems, methods, and devices reduce and mitigate spurs that may occur in transmit waveforms of wireless communications devices. Methods include receiving a plurality of samples of a baseband transmission and generating, using a processing device, an estimated amplitude and an estimated phase of a spur component of the baseband transmission based on the received plurality of samples, the spur component being a spectral spike in a transmit waveform. Methods further include generating, using the processing device, a canceling signal configured to cancel the estimated amplitude and estimated phase of the spur component, and canceling the spur component of the baseband transmission by combining the canceling signal with a transmission of at least a portion of a data packet.
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