Systems and methods for managing power consumption

Patent metadata

Field	Value
Publication number	US-9322925-B2
Application number	US-41261409-A
Country	US
Kind code	B2
Filing date	Mar 27, 2009
Priority date	Mar 27, 2009
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

GPS navigation devices or GPS receivers can consume less power by using a temperature recorder circuit and/or a power manager in calculating the accuracies of the GPS system time and reference frequency to improve battery life. A representative receiver includes a time reference device that generates data associated with a GPS system time, and a temperature recorder circuit that operates using the generated data from the time reference device and monitors the temperature of the time reference device while the receiver hibernates. The receiver further includes memory including a power manager that has instructions, which are processed by a processing device after the receiver wakes up. The instructions associated with the power manager include determining if the temperature recorder circuit sent a wake-up signal, reading data from the temperature recorder circuit, and adjusting parameters associated with at least one of the following: the time reference device and the temperature recorder circuit.

First claim

Therefore, having thus described the disclosure, at least the following is claimed:

1. A receiver, comprising:
a time reference device configured to generate a clock signal associated with a Global Positioning System (GPS) system time;
a temperature recorder circuit, coupled to receive the clock signal from the time reference device, and configured to:
monitor the temperature of the time reference device while the receiver hibernates; and
generate a wake-up signal based on t…

Assignees

• Babitch Daniel
• Gronemeyer Steven A
• Qualcomm Technologies Int Ltd

Inventors

• Babitch Daniel
• Gronemeyer Steven A

Classifications

• G06F1/32

  Physics · mapped topic

• G01S19/34 Primary

  Physics · mapped topic