WO2016014069A1 - Bios real-time clock update - Google Patents

Bios real-time clock update Download PDF

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Publication number
WO2016014069A1
WO2016014069A1 PCT/US2014/048099 US2014048099W WO2016014069A1 WO 2016014069 A1 WO2016014069 A1 WO 2016014069A1 US 2014048099 W US2014048099 W US 2014048099W WO 2016014069 A1 WO2016014069 A1 WO 2016014069A1
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WO
WIPO (PCT)
Prior art keywords
timer
real
time clock
bios
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2014/048099
Other languages
French (fr)
Inventor
Jen-Hao TAI
Chien Kun WANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Development Co LP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP
Priority to PCT/US2014/048099 priority Critical patent/WO2016014069A1/en
Priority to US15/309,519 priority patent/US10101765B2/en
Publication of WO2016014069A1 publication Critical patent/WO2016014069A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/14—Time supervision arrangements, e.g. real time clock
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time-pieces
    • G04C10/04—Arrangements of electric power supplies in time-pieces with means for indicating the condition of the power supply
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1604—Error detection or correction of the data by redundancy in hardware 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
    • G06F11/1679—Temporal synchronisation or re-synchronisation of redundant processing components at clock signal level
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/3065—Monitoring arrangements determined by the means or processing involved in reporting the monitored data
    • G06F11/3072—Monitoring arrangements determined by the means or processing involved in reporting the monitored data where the reporting involves data filtering, e.g. pattern matching, time or event triggered, adaptive or policy-based reporting
    • G06F11/3075—Monitoring arrangements determined by the means or processing involved in reporting the monitored data where the reporting involves data filtering, e.g. pattern matching, time or event triggered, adaptive or policy-based reporting the data filtering being achieved in order to maintain consistency among the monitored data, e.g. ensuring that the monitored data belong to the same timeframe, to the same system or component
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3867—Concurrent instruction execution, e.g. pipeline or look ahead using instruction pipelines
    • G06F9/3869—Implementation aspects, e.g. pipeline latches; pipeline synchronisation and clocking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • Real-time clock information is maintained for devices such as computers, including information such as time and date.
  • Real-time clock is typically maintained within and/or used by a computer's basic input/output system (BIOS).
  • BIOS basic input/output system
  • Various applications installed on the computer may use the real-time clock.
  • Figure 1 schematically illustrates an example system having a real-time clock
  • Figure 2 schematically illustrates an example arrangement for updating a real-time clock
  • Figure 3 illustrates an example method for updating a real-time clock.
  • the real-time clock uses information from a fuel gauge of a battery to update the timer information.
  • the fuel gauge of a battery is provided with circuitry for a timer.
  • a controller such as the central processing unit (CPU) of the device, can obtain the timer information from the fuel gauge of the battery upon boot up of the device.
  • CPU central processing unit
  • the input/output system (BIOS) of the device can obtain the timer information from the fuel gauge and update the real-time clock of the device.
  • the real-time clock of the device does not need to be powered when the device is shut down, eliminating the need for a coin battery, for example.
  • the timer information from the fuel gauge of the battery may be used to supplement, synchronize or otherwise provide timer information to the real-time clock.
  • the system may be implemented in a device 100, such as a desktop, laptop, workstation, tablet, smartphone, gaming device, point of sale device, or server.
  • a device 100 such as a desktop, laptop, workstation, tablet, smartphone, gaming device, point of sale device, or server.
  • the example device 100 of Figure 1 includes a central processing unit (CPU) 110.
  • the CPU 110 may control various operations within the device 100.
  • the CPU 110 may execute instructions from an application stored and/or installed on the device 100.
  • the example device 100 of Figure 1 is further provided with a volatile memory 120.
  • the volatile memory 120 may be a random access memory (RAM) accessed by the CPU 110 for loading and executing the various applications.
  • RAM random access memory
  • the volatile memory 120 may be a static RAM or a dynamic RAM and may be implemented on any of a variety of types of non-transitory storage devices.
  • a non-volatile memory 130 is provided on the example device 100 of Figure 1.
  • the non- volatile memory 130 may be used to store various types of information, including stored data and programs, for example.
  • the non- volatile memory 130 may be any of a variety of types of non-transitory storage devices, such as flash memory chips, for example.
  • the volatile memory 120 and the non- volatile memory 130 are accessed by the CPU 110.
  • the CPU 110 may access the volatile memory 120 (e.g., RAM) to load and access applications while executing instructions associated with the applications, for example.
  • the non- volatile memory 130 may be accessed by the CPU 110 to access data that may be used, for example, by the applications.
  • the non- volatile memory 130 may store files for editing by a word processing program.
  • Information stored in the volatile memory 120 may be available during operation of the device 100, but may be lost when the device 100 is shut down.
  • a program loaded into the volatile memory 120 for use by the CPU 100 may require re-starting each time the device 100 is re-booted.
  • information in the non- volatile memory 130 may remain stored in the non- volatile memory 130 even if the device 100 is shut down.
  • information such as documents, pictures, software or other such data may be stored in the nonvolatile memory 130.
  • BIOS memory 140 A part of the non-volatile memory 130 is used to store basic input/output system (BIOS) information. That part is illustrated in Figure 1 as the BIOS memory 140.
  • the BIOS memory 140 may include data that is needed for the operation of the BIOS of the device 100. Such information may need to be maintained with either no or limited ability to be altered.
  • the example device 100 of Figure 1 also includes various power sources.
  • the device 100 includes the ability to be powered through an external power source (e.g., an alternating current (AC) power adapter).
  • the device 100 may also include a battery 150 for providing power to the device 100 when the external power source is either disconnected or unavailable. When the external power source is connected, the battery may be charged using the external power source.
  • an external power source e.g., an alternating current (AC) power adapter
  • the device 100 may also include a battery 150 for providing power to the device 100 when the external power source is either disconnected or unavailable. When the external power source is connected, the battery may be charged using the external power source.
  • the battery 150 is provided with circuitry for a fuel gauge 160.
  • the fuel gauge 160 in the battery 150 may include circuitry, for example, for measurement of open-circuit voltage.
  • the circuitry may also include
  • circuitry for such fuel gauges 160 may take several forms that are contemplated within the scope of the present disclosure.
  • certain information from the fuel gauge 160 may be provided to the BIOS of the device 110.
  • this provision of information is illustrated by the dashed line between the fuel gauge 160 and the BIOS memory 140.
  • the information may be provided either directly to the BIOS or indirectly (e.g., through the CPU 110).
  • the fuel gauge 160 in the battery 150 is provided with a timer 170.
  • the timer 170 in the fuel gauge 160 may include circuitry that maintains real-time information, such as date and time.
  • the timer requires minimal power from the battery and, accordingly, may operate uninterrupted.
  • the timer 170 may be similar to a real-time clock and, in some examples, may be driven by a clock signal generated from a crystal oscillator. Those skilled in the art will appreciate that various types of timers are possible and are contemplated within the scope of the present disclosure.
  • a real-time clock 210 of the device 100 may be provided within the BIOS 200 of the device 100.
  • the real-time clock 210 may be accessed by the BIOS 200 but may be provided outside the BIOS 200.
  • the BIOS 200 uses the real-time clock 210 for various functions associated with the device 100, the operating system of the device 100 or other programs executed on the device 100.
  • the real-time clock 210 of the BIOS 200 may take various forms.
  • the real-time clock 210 includes circuitry driven by a clock signal generated from a crystal oscillator.
  • a real-time clock 210 is a clock which provides a timing function which supplies timing information to be used as a system time for the device or system in which the real-time clock is implemented.
  • the real-time clock provides timing information such as a current time and date. The real-time clock may be used to provide common timing information to multiple sub-systems or
  • the real-time clock 210 uses information from the timer 170 in the battery 150.
  • the real-time clock 210 can use the information from the timer 170 to update or synchronize the date and time information.
  • the real-time clock 210 ceases operation when the device 100 is shut down.
  • conventional systems include a coin battery to allow continued operation of the real-time clock
  • no power is provided to the real-time clock 210 when the device 100 is shut down.
  • an additional power source such as a coin battery
  • FIG. 3 an example method for updating a real-time clock in a device is illustrated.
  • the information from the timer 170 of the battery 150 is used to update the real-time clock 210 upon boot up of the device 100 or the BIOS 200.
  • the example method begins at block 310, with boot up of the BIOS 200.
  • the BIOS 200 is generally booted up during start up or restarting of the device 100.
  • the real-time clock may indicate the time and date information associated with the time the device was shut down or some default value.
  • timer information from the timer 170 of the battery 150 (e.g., from the fuel gauge 160 of the battery 150) is obtained.
  • the timer information from the battery 150 may be obtained by, for example, the CPU 110 of the device 100 or directly by the BIOS memory 140 of the device 100.
  • the timer information may include the current date and time. Additional information may be provided and is contemplated within the scope of the present disclosure.
  • the timer information from the timer 170 of the battery 150 is used to update the real-time clock associated with the BIOS 200.
  • the BIOS 200 may restart or synchronize the real-time clock 210 with the timer information from the timer 170. Thereafter, the real-time clock 210 can operate normally and may be used by the BIOS 200 and various other aspects of the device 100.
  • Figure 3 illustrates an example in which the time information from the battery is used during boot up of the device 100
  • other examples may use the timer information at regular intervals during operation of the device 100.
  • the timer information from the timer 170 of the battery 150 may be obtained and used for verification of the real-time clock 210.
  • the timer information from the timer 170 of the battery 150 may be used for synchronization or error correction of the real-time clock 210.
  • a real-time clock may be provided without the need for a coin battery or any other power source for the real-time clock when the device is shut down.
  • a coin battery may be provided for operation of the real-time clock, but timer information from a timer in the device's main battery may be used for synchronization or error correction of the real-time clock.

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  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Software Systems (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

An example system includes a basic 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.

Description

BIOS REAL-TIME CLOCK UPDATE
BACKGROUND
[0001] Real-time clock information is maintained for devices such as computers, including information such as time and date. Real-time clock is typically maintained within and/or used by a computer's basic input/output system (BIOS). Various applications installed on the computer may use the real-time clock.
BRIEF DESCRIPTION OF THE DRAWINGS
[0002] For a more complete understanding of various examples, reference is now made to the following descriptions taken in connection with the accompanying drawings in which:
[0003] Figure 1 schematically illustrates an example system having a real-time clock;
[0004] Figure 2 schematically illustrates an example arrangement for updating a real-time clock; and
[0005] Figure 3 illustrates an example method for updating a real-time clock. DETAILED DESCRIPTION
[0006] Various examples described below provide for updating of a real-time clock for a device, such as a computer. The real-time clock uses information from a fuel gauge of a battery to update the timer information. The fuel gauge of a battery is provided with circuitry for a timer. A controller, such as the central processing unit (CPU) of the device, can obtain the timer information from the fuel gauge of the battery upon boot up of the device. The basic
input/output system (BIOS) of the device can obtain the timer information from the fuel gauge and update the real-time clock of the device. Thus, in accordance with various examples, the real-time clock of the device does not need to be powered when the device is shut down, eliminating the need for a coin battery, for example. In some examples, the timer information from the fuel gauge of the battery may be used to supplement, synchronize or otherwise provide timer information to the real-time clock.
[0007] Referring now to Figure 1 , an example system having a real-time clock is
schematically illustrated. The system may be implemented in a device 100, such as a desktop, laptop, workstation, tablet, smartphone, gaming device, point of sale device, or server. Of course, those skilled in the art will appreciate that the system may be implemented in any of a variety of other electronic devices. The example device 100 of Figure 1 includes a central processing unit (CPU) 110. In various examples, the CPU 110 may control various operations within the device 100. For example, the CPU 110 may execute instructions from an application stored and/or installed on the device 100.
[0008] The example device 100 of Figure 1 is further provided with a volatile memory 120. In various examples, the volatile memory 120 may be a random access memory (RAM) accessed by the CPU 110 for loading and executing the various applications. The volatile memory 120 may be a static RAM or a dynamic RAM and may be implemented on any of a variety of types of non-transitory storage devices.
[0009] A non-volatile memory 130 is provided on the example device 100 of Figure 1. The non- volatile memory 130 may be used to store various types of information, including stored data and programs, for example. The non- volatile memory 130 may be any of a variety of types of non-transitory storage devices, such as flash memory chips, for example.
[0010] The volatile memory 120 and the non- volatile memory 130 are accessed by the CPU 110. As noted above, the CPU 110 may access the volatile memory 120 (e.g., RAM) to load and access applications while executing instructions associated with the applications, for example. The non- volatile memory 130 may be accessed by the CPU 110 to access data that may be used, for example, by the applications. For example, the non- volatile memory 130 may store files for editing by a word processing program.
[0011] Information stored in the volatile memory 120 may be available during operation of the device 100, but may be lost when the device 100 is shut down. For example, a program loaded into the volatile memory 120 for use by the CPU 100 may require re-starting each time the device 100 is re-booted. By contrast, information in the non- volatile memory 130 may remain stored in the non- volatile memory 130 even if the device 100 is shut down. Thus, information such as documents, pictures, software or other such data may be stored in the nonvolatile memory 130.
[0012] A part of the non-volatile memory 130 is used to store basic input/output system (BIOS) information. That part is illustrated in Figure 1 as the BIOS memory 140. The BIOS memory 140 may include data that is needed for the operation of the BIOS of the device 100. Such information may need to be maintained with either no or limited ability to be altered.
[0013] The example device 100 of Figure 1 also includes various power sources. In one example, the device 100 includes the ability to be powered through an external power source (e.g., an alternating current (AC) power adapter). The device 100 may also include a battery 150 for providing power to the device 100 when the external power source is either disconnected or unavailable. When the external power source is connected, the battery may be charged using the external power source.
[0014] In the example of Figure 1, the battery 150 is provided with circuitry for a fuel gauge 160. The fuel gauge 160 in the battery 150 may include circuitry, for example, for measurement of open-circuit voltage. In addition, in some examples, the circuitry may also include
measurement of a temperature. Those skilled in the art will appreciate that circuitry for such fuel gauges 160 may take several forms that are contemplated within the scope of the present disclosure.
[0015] In various examples of the present disclosure, certain information from the fuel gauge 160 may be provided to the BIOS of the device 110. In Figure 1, this provision of information is illustrated by the dashed line between the fuel gauge 160 and the BIOS memory 140. In various examples, the information may be provided either directly to the BIOS or indirectly (e.g., through the CPU 110).
[0016] Referring now to Figure 2, an example arrangement for updating a real-time clock is schematically illustrated. In the example of Figure 2, the fuel gauge 160 in the battery 150 is provided with a timer 170. The timer 170 in the fuel gauge 160 may include circuitry that maintains real-time information, such as date and time. In various examples, the timer requires minimal power from the battery and, accordingly, may operate uninterrupted.
[0017] The timer 170 may be similar to a real-time clock and, in some examples, may be driven by a clock signal generated from a crystal oscillator. Those skilled in the art will appreciate that various types of timers are possible and are contemplated within the scope of the present disclosure.
[0018] Referring again to Figure 2, a real-time clock 210 of the device 100 may be provided within the BIOS 200 of the device 100. In other examples, the real-time clock 210 may be accessed by the BIOS 200 but may be provided outside the BIOS 200. The BIOS 200 uses the real-time clock 210 for various functions associated with the device 100, the operating system of the device 100 or other programs executed on the device 100.
[0019] As with the timer 170 of the battery 150, the real-time clock 210 of the BIOS 200 may take various forms. In one example, the real-time clock 210 includes circuitry driven by a clock signal generated from a crystal oscillator. As referred to herein, a real-time clock 210 is a clock which provides a timing function which supplies timing information to be used as a system time for the device or system in which the real-time clock is implemented. In various examples, the real-time clock provides timing information such as a current time and date. The real-time clock may be used to provide common timing information to multiple sub-systems or
applications within the device or system.
[0020] In various example of the present disclosure, the real-time clock 210 uses information from the timer 170 in the battery 150. The real-time clock 210 can use the information from the timer 170 to update or synchronize the date and time information. In some examples, unlike real-time clock in conventional systems, the real-time clock 210 ceases operation when the device 100 is shut down. In this regard, while conventional systems include a coin battery to allow continued operation of the real-time clock, in some examples of the present disclosure, no power is provided to the real-time clock 210 when the device 100 is shut down. Thus, the need for an additional power source, such as a coin battery, is eliminated.
[0021] Referring now to Figure 3, an example method for updating a real-time clock in a device is illustrated. In accordance with the example method 300, the information from the timer 170 of the battery 150 is used to update the real-time clock 210 upon boot up of the device 100 or the BIOS 200.
[0022] Thus, referring again to Figure 3, the example method begins at block 310, with boot up of the BIOS 200. The BIOS 200 is generally booted up during start up or restarting of the device 100. At boot up of the BIOS 200, the real-time clock may indicate the time and date information associated with the time the device was shut down or some default value.
[0023] At block 320, timer information from the timer 170 of the battery 150 (e.g., from the fuel gauge 160 of the battery 150) is obtained. The timer information from the battery 150 may be obtained by, for example, the CPU 110 of the device 100 or directly by the BIOS memory 140 of the device 100. In various examples, the timer information may include the current date and time. Additional information may be provided and is contemplated within the scope of the present disclosure.
[0024] At block 330, the timer information from the timer 170 of the battery 150 is used to update the real-time clock associated with the BIOS 200. In this regard, the BIOS 200 may restart or synchronize the real-time clock 210 with the timer information from the timer 170. Thereafter, the real-time clock 210 can operate normally and may be used by the BIOS 200 and various other aspects of the device 100.
[0025] While Figure 3 illustrates an example in which the time information from the battery is used during boot up of the device 100, other examples may use the timer information at regular intervals during operation of the device 100. For example, at regular intervals, the timer information from the timer 170 of the battery 150 may be obtained and used for verification of the real-time clock 210. In this regard, the timer information from the timer 170 of the battery 150 may be used for synchronization or error correction of the real-time clock 210.
[0026] Thus, in various examples, a real-time clock may be provided without the need for a coin battery or any other power source for the real-time clock when the device is shut down. In other examples, a coin battery may be provided for operation of the real-time clock, but timer information from a timer in the device's main battery may be used for synchronization or error correction of the real-time clock.
[0027] The various examples set forth herein are described in terms of example block diagrams, flow charts and other illustrations. Those skilled in the art will appreciate that the illustrated examples and their various alternatives can be implemented without confinement to the illustrated examples. For example, block diagrams and their accompanying description should not be construed as mandating a particular architecture or configuration.

Claims

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 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 is part of a fuel gauge of the battery.
5. The system of claim 1, wherein the timer information from the timer includes at least the calendar date and the current time.
6. A method, comprising:
booting up a basic input/output system (BIOS);
obtaining timer information from a timer of a battery; and
updating a real-time clock associated with the BIOS using the timer information from the timer of the battery.
7. The method of claim 6, wherein real-time clock is without power before boot up of the BIOS.
8. The method of claim 6, wherein the battery provides power to the BIOS and the real-time clock.
9. The method of claim 6, wherein the timer is part of a fuel gauge of the battery.
10. The method of claim 6, wherein the timer information from the timer includes at least the calendar date and the current time.
11. 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.
12. The apparatus of claim 11, wherein the real-time clock is updated using the timer information from the fuel gauge timer upon boot up of the BIOS.
13. The apparatus of claim 12, wherein real-time clock is without power before boot up of the BIOS.
14. The apparatus of claim 11, wherein real-time clock ceases operation upon shut down of the BIOS.
15. The apparatus of claim 11, wherein the timer information from the fuel gauge timer includes at least the calendar date and the current time.
PCT/US2014/048099 2014-07-25 2014-07-25 Bios real-time clock update Ceased WO2016014069A1 (en)

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US15/309,519 US10101765B2 (en) 2014-07-25 2014-07-25 BIOS real-time clock update

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116148668A (en) * 2022-12-15 2023-05-23 湖北亿纬动力有限公司 Battery management system and its SOC correction method, computer-readable storage medium

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016194655A1 (en) * 2015-06-05 2016-12-08 ソニーセミコンダクタソリューションズ株式会社 Signal processing device and method
US20190101952A1 (en) * 2017-09-30 2019-04-04 Intel Corporation Processors and methods for configurable clock gating in a spatial array
CN115963913A (en) * 2023-03-17 2023-04-14 合肥联宝信息技术有限公司 Real-time clock power supply method, power supply circuit and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616281A2 (en) * 1993-03-19 1994-09-21 Compaq Computer Corporation Battery pack including static memory and a timer for charge management
US20030115001A1 (en) * 2001-11-29 2003-06-19 International Business Machines Corporation Electrical apparatus, computer equipment, intelligent battery, and control method for battery
US20110314322A1 (en) * 2010-06-22 2011-12-22 Hon Hai Precision Industry Co., Ltd. Time synchronization system and server using same
US20120275101A1 (en) * 2008-12-08 2012-11-01 Apple Inc. Battery gas gauge reset mechanism
US20130232373A1 (en) * 2012-03-01 2013-09-05 Tung-Yi Wang Method for performing real time clock calibration through frame number calculation, and associated apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5542077A (en) * 1993-09-10 1996-07-30 Compaq Computer Corporation Personal computer with CMOS memory not having a separate battery
EP1199783A1 (en) * 2000-10-16 2002-04-24 Sony International (Europe) GmbH Battery management system
JP4956142B2 (en) * 2006-10-31 2012-06-20 株式会社東芝 Information processing apparatus and date / time information changing method
DE112009004616B4 (en) 2009-04-30 2013-04-18 Hewlett-Packard Development Company, L.P. Calculation of power input to a computer
JP5260706B2 (en) 2011-06-24 2013-08-14 レノボ・シンガポール・プライベート・リミテッド Power system for portable electronic equipment with timekeeping circuit
US9411398B2 (en) 2012-09-28 2016-08-09 Intel Corporation Electronic device and method to extend battery life
CN103018680B (en) 2012-12-11 2014-07-16 矽力杰半导体技术(杭州)有限公司 Metering method and metering device of battery level and battery supply set
US10222823B2 (en) * 2015-06-25 2019-03-05 Intel Corporation Computing apparatus with real time clock without a battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616281A2 (en) * 1993-03-19 1994-09-21 Compaq Computer Corporation Battery pack including static memory and a timer for charge management
US20030115001A1 (en) * 2001-11-29 2003-06-19 International Business Machines Corporation Electrical apparatus, computer equipment, intelligent battery, and control method for battery
US20120275101A1 (en) * 2008-12-08 2012-11-01 Apple Inc. Battery gas gauge reset mechanism
US20110314322A1 (en) * 2010-06-22 2011-12-22 Hon Hai Precision Industry Co., Ltd. Time synchronization system and server using same
US20130232373A1 (en) * 2012-03-01 2013-09-05 Tung-Yi Wang Method for performing real time clock calibration through frame number calculation, and associated apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116148668A (en) * 2022-12-15 2023-05-23 湖北亿纬动力有限公司 Battery management system and its SOC correction method, computer-readable storage medium

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