CN101452307B - 实时时钟校准系统及其方法 - Google Patents
实时时钟校准系统及其方法 Download PDFInfo
- Publication number
- CN101452307B CN101452307B CN2008100843257A CN200810084325A CN101452307B CN 101452307 B CN101452307 B CN 101452307B CN 2008100843257 A CN2008100843257 A CN 2008100843257A CN 200810084325 A CN200810084325 A CN 200810084325A CN 101452307 B CN101452307 B CN 101452307B
- Authority
- CN
- China
- Prior art keywords
- calibration
- value
- clock
- cycle
- remainder
- 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.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Electric Clocks (AREA)
Abstract
Description
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/952,146 | 2007-12-07 | ||
US11/952,146 US7652545B2 (en) | 2007-12-07 | 2007-12-07 | System and method of calibrating real time clock utilizing average calibration |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101452307A CN101452307A (zh) | 2009-06-10 |
CN101452307B true CN101452307B (zh) | 2010-07-07 |
Family
ID=40721007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008100843257A Expired - Fee Related CN101452307B (zh) | 2007-12-07 | 2008-03-18 | 实时时钟校准系统及其方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7652545B2 (zh) |
CN (1) | CN101452307B (zh) |
TW (1) | TWI364637B (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7869558B2 (en) * | 2009-05-12 | 2011-01-11 | Freescale Semiconductor, Inc. | Method and apparatus for calibrating a counting circuit |
CN102981551B (zh) * | 2012-11-22 | 2015-07-29 | 百利通科技(扬州)有限公司 | 一种实时时钟温度补偿系统及方法 |
CN106097496B (zh) * | 2016-06-07 | 2019-05-28 | 北京千丁互联科技有限公司 | 蓝牙门禁管理系统、蓝牙门禁设备及其时间校准方法 |
US9887701B1 (en) * | 2016-09-10 | 2018-02-06 | Texas Instruments Deutschland Gmbh | Frequency offset correction precision of real-time clocks |
CN106444966B (zh) * | 2016-09-30 | 2019-06-04 | 大唐微电子技术有限公司 | 一种实时时钟rtc调整装置及方法 |
CN109918337B (zh) * | 2019-02-21 | 2023-02-03 | 广州技象科技有限公司 | 一种应用于单片机系统的时间自动校准方法 |
TWI697877B (zh) * | 2019-03-15 | 2020-07-01 | 瑞鼎科技股份有限公司 | 調整顯示時鐘的方法及其裝置 |
CN111830892B (zh) * | 2019-04-22 | 2022-09-23 | 新疆金风科技股份有限公司 | 风力发电机组统计时间校准方法和装置、存储介质 |
CN112637031B (zh) * | 2021-01-06 | 2022-06-17 | 广东博智林机器人有限公司 | 从站控制周期的校准方法、校准装置和驱动控制系统 |
CN114237020B (zh) * | 2021-12-10 | 2023-09-26 | 合肥兆芯电子有限公司 | 计时器校准方法与电子装置 |
CN117389128B (zh) * | 2023-12-08 | 2024-02-23 | 深圳市山海半导体科技有限公司 | 一种数字时钟自动校准方法及系统 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1610836A (zh) * | 2001-10-30 | 2005-04-27 | SiRF技术公司 | 用于低功率运行期间全球定位系统信号获取的校准实时时钟 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5272650A (en) | 1990-09-25 | 1993-12-21 | Honeywell Inc. | Self correcting time base for inaccurate oscillators |
US5771180A (en) * | 1994-09-30 | 1998-06-23 | Apple Computer, Inc. | Real time clock and method for providing same |
US5710910A (en) | 1994-09-30 | 1998-01-20 | University Of Washington | Asynchronous self-tuning clock domains and method for transferring data among domains |
-
2007
- 2007-12-07 US US11/952,146 patent/US7652545B2/en not_active Expired - Fee Related
-
2008
- 2008-03-12 TW TW097108652A patent/TWI364637B/zh not_active IP Right Cessation
- 2008-03-18 CN CN2008100843257A patent/CN101452307B/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1610836A (zh) * | 2001-10-30 | 2005-04-27 | SiRF技术公司 | 用于低功率运行期间全球定位系统信号获取的校准实时时钟 |
Also Published As
Publication number | Publication date |
---|---|
CN101452307A (zh) | 2009-06-10 |
TWI364637B (en) | 2012-05-21 |
US7652545B2 (en) | 2010-01-26 |
US20090146744A1 (en) | 2009-06-11 |
TW200925808A (en) | 2009-06-16 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: MEDIATEK TECHNOLOGY (SHANGHAI) CO., LTD. Free format text: FORMER OWNER: MEDIATEK INC. Effective date: 20121213 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: TAIWAN, CHINA TO: 200233 XUHUI, SHANGHAI |
|
TR01 | Transfer of patent right |
Effective date of registration: 20121213 Address after: 200233 Building 2, building 391, 20 Guiping Road, Shanghai, Xuhui District Patentee after: MediaTek Technology (Shanghai) Co., Ltd. Address before: China Taiwan Hsinchu Science Park Hsinchu city Dusing a road No. Patentee before: MediaTek.Inc |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20190318 |
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CF01 | Termination of patent right due to non-payment of annual fee |