专利检索 ap:("Aditya Srivastava" OR "Ron Rotstein" OR "Balaji Subramanyam Natakala" OR "Sachin Kumar Prabodhkumar Vyas" OR "Mojtaba Bahrami") AND inv:"Sachin Kumar Prabodhkumar Vyas" 第 1 页

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发明申请
GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) AND TEMPERATURE SENSING CRYSTAL (TSX) BASED DEVICE TIME SERVICE 有权

公开(公告)号：US20220196848A1

公开(公告)日：2022-06-23

申请号：US17129899

申请日：2020-12-21

申请人： Aditya Srivastava , Ron Rotstein , Balaji Subramanyam Natakala , Sachin Kumar Prabodhkumar Vyas , Mojtaba Bahrami

发明人： Aditya Srivastava , Ron Rotstein , Balaji Subramanyam Natakala , Sachin Kumar Prabodhkumar Vyas , Mojtaba Bahrami

IPC分类号： G01S19/39 , G01S19/07

摘要： In some implementations, a processor may retrieve predicted positioning data and predicted orbital data from global navigation satellite service (GNSS) positioning circuitry of a wireless device in response to a request for device time. The processor may retrieve long-term learning (LTL) data for a temperature sensing crystal (TSX) of the wireless device, the LTL data including S-curve characteristics of the TSX, and the time tracking uncertainty of the TSX. The processor may generate a GNSS-based device time estimate using the predicted positioning data and the predicted orbital data. The processor may perform TSX-based device time processing by updating the GNSS-based device time estimate using a clock signal of the TSX to generate a final device time estimate, the updating based on the retrieved LTL data for the TSX.