BIOS real-time clock update

Patent metadata

Field	Value
Publication number	US-10101765-B2
Application number	US-201415309519-A
Country	US
Kind code	B2
Filing date	Jul 25, 2014
Priority date	Jul 25, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

An example system includes a bask input/output system (BIOS) and a battery having a fuel gauge timer. The BIOS is associated with a real-time clock, and the BIOS uses timer information from the fuel gauge timer to update the real-time clock.

First claim

What is claimed is:

1. A system, comprising:
a basic input/output system (BIOS), the BIOS being associated with a real-time clock; and
a battery having a fuel gauge, the fuel gauge including a timer,
wherein the BIOS is to utilize timer information from the timer to update the real-time clock.

2. The system of claim 1 , wherein the real-time clock is updated using the timer information from timer upon boot up of the BIOS.

3. The system of claim 2 , wherein real-time clock is without power before boot up of the BIOS.

4. The system of claim 1 , wherein the timer information from the timer includes at least the calendar date and the current time.

5. A method, comprising:
booting up a basic input/output system (BIOS);
obtaining timer information from a timer of a battery, the timer being in a fuel gauge of the battery; and
updating a real-time clock associated with the BIOS using the timer information from the timer of the battery.

6. The method of claim 5 , wherein real-time clock is without power before boot up of the BIOS.

7. The method of claim 5 , wherein the battery provides power to the BIOS and the real-time clock.

8. The method of claim 5 , wherein the timer information from the timer includes at least the calendar date and the current time.

9. An apparatus, comprising:
a processor; and
a memory device including computer program code, the memory device and the computer program code, with the processor, to cause the apparatus to:
obtain timer information from a timer of a fuel gauge of a battery; and
update a real-time clock associated with a basic input/output system (BIOS) using the timer information from the timer of the fuel gauge of the battery.

10. The apparatus of claim 9 , wherein the real-time clock is updated using the timer information from the fuel gauge timer upon boot up of the BIOS.

11. The apparatus of claim 10 , wherein real-time clock is without power before boot up of the BIOS.

12. The apparatus of claim 9 , wherein real-time clock ceases operation upon shut down of the BIOS.

13. The apparatus of claim 9 , wherein the timer information from the fuel gauge timer includes at least the calendar date and the current time.

Assignees

• Hewlett Packard Development Co

Inventors

• Tai Jen-Hao
• Wang Chien Kun

Classifications

• H01M10/48

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• G06F11/1604

  where the fault affects the clock signals of a processing unit and the redundancy is at or within the level of clock signal generation hardware · CPC title

• G01R31/3655

  Physics · mapped topic

• G04C10/04

  with means for indicating the condition of the power supply · CPC title

• G06F11/1679

  at clock signal level · CPC title