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DE19983213T1 - Detektor für einen abnormalen Takt und Erfassungsvorrichtung für einen abnormalen Takt - Google Patents

Detektor für einen abnormalen Takt und Erfassungsvorrichtung für einen abnormalen Takt

Info

Publication number
DE19983213T1
DE19983213T1 DE19983213T DE19983213T DE19983213T1 DE 19983213 T1 DE19983213 T1 DE 19983213T1 DE 19983213 T DE19983213 T DE 19983213T DE 19983213 T DE19983213 T DE 19983213T DE 19983213 T1 DE19983213 T1 DE 19983213T1
Authority
DE
Germany
Prior art keywords
clock
clock detector
clk2b
abnormal clock
frequency
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.)
Granted
Application number
DE19983213T
Other languages
English (en)
Other versions
DE19983213B4 (de
Inventor
Takayuki Tsuzuki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE19983213T1 publication Critical patent/DE19983213T1/de
Application granted granted Critical
Publication of DE19983213B4 publication Critical patent/DE19983213B4/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/19—Monitoring patterns of pulse trains
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/30—Marginal testing, e.g. by varying supply voltage
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE19983213T 1998-05-13 1999-05-10 Detektorvorrichtung zum Erfassen abnormaler Takte Expired - Lifetime DE19983213B4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10/130633 1998-05-13
JP13063398 1998-05-13
PCT/JP1999/002405 WO1999059051A1 (fr) 1998-05-13 1999-05-10 Dispositif et appareil pour detecter une defaillance d'horloge

Publications (2)

Publication Number Publication Date
DE19983213T1 true DE19983213T1 (de) 2001-05-31
DE19983213B4 DE19983213B4 (de) 2006-02-09

Family

ID=15038923

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19983213T Expired - Lifetime DE19983213B4 (de) 1998-05-13 1999-05-10 Detektorvorrichtung zum Erfassen abnormaler Takte

Country Status (5)

Country Link
US (1) US6333646B1 (de)
JP (1) JP3827947B2 (de)
KR (1) KR100363816B1 (de)
DE (1) DE19983213B4 (de)
WO (1) WO1999059051A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3489560B2 (ja) * 2000-11-10 2004-01-19 日本電気株式会社 クロック断検出回路
US6563346B2 (en) * 2000-12-13 2003-05-13 International Business Machines Corporation Phase independent frequency comparator
EP1333579B1 (de) * 2002-01-30 2013-03-13 Infineon Technologies AG Einrichtung zur Erkennung eines Taktsignalausfalls
US6593801B1 (en) 2002-06-07 2003-07-15 Pericom Semiconductor Corp. Power down mode signaled by differential transmitter's high-Z state detected by receiver sensing same voltage on differential lines
JP3838972B2 (ja) * 2002-12-25 2006-10-25 Ｎｅｃエレクトロニクス株式会社 周波数検出回路及びデータ処理装置
US7310396B1 (en) * 2003-03-28 2007-12-18 Xilinx, Inc. Asynchronous FIFO buffer for synchronizing data transfers between clock domains
US7107393B1 (en) * 2003-03-28 2006-09-12 Xilinx, Inc. Systems and method for transferring data asynchronously between clock domains
JP5199392B2 (ja) * 2008-12-08 2013-05-15 パナソニック株式会社 システムクロック監視装置およびモータ制御システム
WO2011052112A1 (ja) * 2009-10-29 2011-05-05 パナソニック株式会社 システムクロック監視装置およびモータ制御システム
JP5616138B2 (ja) 2010-06-17 2014-10-29 パナソニック株式会社 ステッピングモータ駆動装置
US8643410B1 (en) * 2012-09-02 2014-02-04 Freescale Semiconductor, Inc. System for compensating for variations in clock signal frequency
JP6101648B2 (ja) * 2014-02-20 2017-03-22 株式会社日立製作所 異常発信検知装置及び方法
US9645602B2 (en) * 2015-09-23 2017-05-09 Qualcomm Incorporated Frequency sensor for side-channel attack
JP2017199104A (ja) 2016-04-26 2017-11-02 ソニー株式会社 半導体装置および半導体装置の制御方法
US10379927B2 (en) * 2016-11-01 2019-08-13 Xilinx, Inc. Programmable clock monitor
KR101876356B1 (ko) * 2017-05-08 2018-07-09 현대오트론 주식회사 에러 검출 회로, 그것을 포함하는 차량 전자제어 시스템 및 그것의 동작 방법
JP2020010207A (ja) 2018-07-10 2020-01-16 セイコーエプソン株式会社 発振器、電子機器及び移動体
JP2020010208A (ja) 2018-07-10 2020-01-16 セイコーエプソン株式会社 発振器、電子機器及び移動体
CN109799870B (zh) * 2018-12-29 2021-03-05 深圳云天励飞技术有限公司 一种时钟控制电路及控制方法
CN114338463B (zh) * 2021-12-31 2023-05-16 武汉为德股权投资合伙企业(有限合伙) 基于脉冲收缩延时链的安全检测电路、设备及检测方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235930A (ja) * 1985-08-09 1987-02-16 Fujitsu Ltd クロツク診断方式
JPS63191411A (ja) 1987-02-04 1988-08-08 Fujitsu Ltd クロツク断検出回路
JPH01319325A (ja) * 1988-06-21 1989-12-25 Hitachi Commun Syst Inc クロック断監視回路
JPH04130508A (ja) * 1990-09-20 1992-05-01 Fujitsu Ltd クロック断監視回路
JPH04306930A (ja) * 1991-04-04 1992-10-29 Seiko Epson Corp クロック異常検出器
JPH05324118A (ja) * 1992-05-21 1993-12-07 Fujitsu Ltd 自動クロック切り替え方式およびその回路
JPH05336095A (ja) 1992-06-03 1993-12-17 Fujitsu Ltd 網同期装置のクロック周波数監視方法
JP2538762B2 (ja) 1994-05-23 1996-10-02 福島日本電気株式会社 クロック断検出回路
JP3302513B2 (ja) 1994-08-22 2002-07-15 沖電気工業株式会社 位相同期回路の異常検出方式
JPH08223071A (ja) * 1995-02-08 1996-08-30 Sony Corp 送信機及び送受信機
JPH09244761A (ja) 1996-03-11 1997-09-19 Oki Electric Ind Co Ltd クロック異常検出回路
JPH09292928A (ja) * 1996-04-26 1997-11-11 Toyo Commun Equip Co Ltd クロック信号源の監視装置
JP3033520B2 (ja) * 1997-05-13 2000-04-17 日本電気株式会社 クロック抽出回路

Also Published As

Publication number Publication date
DE19983213B4 (de) 2006-02-09
WO1999059051A1 (fr) 1999-11-18
KR20010043557A (ko) 2001-05-25
JP3827947B2 (ja) 2006-09-27
KR100363816B1 (ko) 2002-12-11
US6333646B1 (en) 2001-12-25

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
R071 Expiry of right