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公开(公告)号：US20200226966A1
公开(公告)日：2020-07-16
申请号：US16741110
申请日：2020-01-13
发明人： Kang G. SHIN , Chun-Yu CHEN
摘要： People use their mobile devices anywhere and anytime to run various apps, and the information shown on their device screens can be seen by nearby unauthorized parties, referred to as shoulder surfers. To mitigate this privacy threat, techniques have been developed utilizing human vision and optical system properties to hide the users' on-screen information from the shoulder surfers. Specifically, the proposed techniques discretize the device screen into grid patterns to neutralize the low-frequency components so that the on-screen information will “blend into” the background when viewed from the outside of the designed visible range.
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公开(公告)号：US20200252749A1
公开(公告)日：2020-08-06
申请号：US16640235
申请日：2018-08-24
发明人： Kang G. SHIN , Chun-Yu CHEN
摘要： An in-car phone localization scheme is proposed to determine, in real time, the locations of smartphones inside a moving car, with the goal of preventing smartphone-distracted driving. The localization system operates on commodity smartphones, and does not require any additional special/customized sensors or devices to be installed inside the car, making its deployment easy and attractive to users and carmakers. Even when a phone is moved from one location to another inside a moving car, the system will detect this movement, record the sensor data, and estimate the phone's destination location. The system captures the trajectory of each phone movement, the change of magnetic field, and the RSSI readings from the car Bluetooth transceiver, and then estimates the phone's destination location by matching the trajectory with the variation of magnetic field and the Bluetooth RSSI readings.
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