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公开(公告)号：US10178614B2
公开(公告)日：2019-01-08
申请号：US14967012
申请日：2015-12-11
发明人： Yunxin Liu , Guobin Shen , Yongguang Zhang , Hao Han
IPC分类号： H04W52/02
摘要： The techniques discussed herein reduce the power consumption of a Wi-Fi tethering device by switching the Wi-Fi functionality of the Wi-Fi tethering device from a normal operational mode to a sleep mode during idle intervals. The techniques implement a sleep protocol where a Wi-Fi tethering device and the Wi-Fi client device coordinate and establish a sleep schedule. Moreover, the techniques describe a sleep interval adaptation algorithm to establish sleep duration intervals based on data packet exchange patterns associated with different applications executing on the Wi-Fi client device and/or different operations being performed by the Wi-Fi client device.
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公开(公告)号：US09858402B2
公开(公告)日：2018-01-02
申请号：US14832954
申请日：2015-08-21
发明人： Guobin Shen , Fan Yang , Lidong Zhou
CPC分类号： G06F21/32 , H04L9/0866 , H04L9/32 , H04L9/3231 , H04L9/3271 , H04L63/0815 , H04L63/0861 , H04L2209/805 , H04L2463/082
摘要： A multi-party security protocol that incorporates biometric-based authentication and withstands attacks against any single party (e.g., mobile phone, cloud, or the user). The protocol involves the function split between mobile and cloud and the mechanisms to chain-hold the secrets. A key generation mechanisms binds secrets to a specific device or URL (uniform resource locator) by adding salt to a master credential. An inline CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) handling mechanism uses the same sensor modality as the authentication process, which not only improves the usability, but also facilitates the authentication process. This architecture further enhances existing overall system security (e.g., handling untrusted or compromised cloud service, phone being lost, impersonation, etc.) and also improves the usability by automatically handling the CAPTCHA.
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公开(公告)号：US11144586B2
公开(公告)日：2021-10-12
申请号：US15269775
申请日：2016-09-19
发明人： Guobin Shen , Songwu Lu , Fan Yang
IPC分类号： G06F16/51 , G06F16/58 , G06F16/583 , G06K9/46 , H04L29/08
摘要： Kinship between electronic files among personal networked devices may be ascertained between the files by determining an operational relationship between the files and with a similarity measurement.
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公开(公告)号：US20170011032A1
公开(公告)日：2017-01-12
申请号：US15269775
申请日：2016-09-19
发明人： Guobin Shen , Songwu Lu , Fan Yang
CPC分类号： G06F16/51 , G06F16/58 , G06F16/583 , G06F16/5838 , G06K9/4652 , H04L67/10
摘要： Kinship between electronic files among personal networked devices may be ascertained between the files by determining an operational relationship between the files and with a similarity measurement.
摘要翻译： 可以通过确定文件之间的操作关系和相似性度量来确定个人网络设备之间的电子文件之间的亲属关系。
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公开(公告)号：US09674656B2
公开(公告)日：2017-06-06
申请号：US14185768
申请日：2014-02-20
发明人： Liqun Li , Guobin Shen , Chunshui Zhao , Feng Zhao
摘要： Disclosed herein are techniques and systems for performing wireless-based localization using a zonal framework. An area (i.e., surface or space) may be partitioned into multiple zones, and one or more signal propagation models for one or more wireless access points (APs) may be generated for each zone. The result is a set of zonal signal propagation models that allow for improved model fitness on a per-zone basis. A process includes receiving a location query associated with a wireless communication device, selecting a target zone among multiple available zones of an area, and estimating a location of the wireless communication device based at least in part on one of a signal propagation model associated with the target zone or a fingerprint-based localization. The signal propagation model associated with the target zone may be generated based on training samples observed exclusively within the target zone.
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公开(公告)号：US09879980B2
公开(公告)日：2018-01-30
申请号：US14488246
申请日：2014-09-16
发明人： Guobin Shen , Liqun Li , Feng Zhao
摘要： The subject matter described herein relates to light based positioning. In one embodiment, a method comprises: responsive to receiving a light signal from at least one light source available to the device, decoding a beacon from the received light signal, the beacon associated with the at least one light source; measuring signal strength of the received light signal; and determining a position of the device at least in part based on the decoded beacon, the measured signal strength, and number of the at least one light source. In addition, the frequency channelization and random channel hopping may be utilized to further improve the performance.
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