公开(公告)号：US20160116598A1

公开(公告)日：2016-04-28

申请号：US14845781

申请日：2015-09-04

Applicant: QUALCOMM Incorporated

Inventor： Jie Wu ,  Dominic Farmer ,  Lalitaprasad Daita ,  Emilija Simic

IPC: G01S19/23 ,  G01S19/34

CPC classification number: G01S19/23 ,  G01S19/235 ,  G01S19/34 ,  G01S19/39

Abstract: Disclosed are devices, systems and techniques for propagating a system time maintained at a mobile device in a lower power mode using a sleep counter advanced by an XO crystal oscillator. In one particular implementation, a mobile device obtains initial and subsequent satellite positioning system fixes while in a higher power mode. Between the initial and subsequent position fixes, the mobile device may transition to a lower power mode during which measurements of a temperature of the XO crystal oscillator may be obtained.

Abstract translation: 公开了使用由XO晶体振荡器提前的睡眠计数器在较低功率模式下传播维持在移动设备上的系统时间的设备，系统和技术。 在一个特定实现中，移动设备在较高功率模式下获得初始和随后的卫星定位系统固定。 在初始和随后的位置定位之间，移动设备可以转换到较低功率模式，在此模式期间可以获得XO晶体振荡器的温度测量。

公开(公告)号：US10557944B2

公开(公告)日：2020-02-11

申请号：US14845781

申请日：2015-09-04

Applicant: QUALCOMM Incorporated

Inventor： Jie Wu ,  Dominic Farmer ,  Lalitaprasad Daita ,  Emilija Simic

IPC: G01S19/23 ,  G01S19/34

Abstract: Disclosed are devices, systems and techniques for propagating a system time maintained at a mobile device in a lower power mode using a sleep counter advanced by an XO crystal oscillator. In one particular implementation, a mobile device obtains initial and subsequent satellite positioning system fixes while in a higher power mode. Between the initial and subsequent position fixes, the mobile device may transition to a lower power mode during which measurements of a temperature of the XO crystal oscillator may be obtained.

公开(公告)号：US10884134B2

公开(公告)日：2021-01-05

申请号：US16786360

申请日：2020-02-10

Applicant: QUALCOMM Incorporated

Inventor： Jie Wu ,  Dominic Gerard Farmer ,  Lalitaprasad Daita ,  Emilija Simic

IPC: G01S19/23 ,  G01S19/34 ,  G01S19/39

Abstract: Disclosed are devices, systems and techniques for propagating a system time maintained at a mobile device in a lower power mode using a sleep counter advanced by an XO crystal oscillator. In one particular implementation, a mobile device obtains initial and subsequent satellite positioning system fixes while in a higher power mode. Between the initial and subsequent position fixes, the mobile device may transition to a lower power mode during which measurements of a temperature of the XO crystal oscillator may be obtained.