DE69625473T2 - Taktsteuerungssystem- und verfahren - Google Patents
Taktsteuerungssystem- und verfahrenInfo
- Publication number
- DE69625473T2 DE69625473T2 DE69625473T DE69625473T DE69625473T2 DE 69625473 T2 DE69625473 T2 DE 69625473T2 DE 69625473 T DE69625473 T DE 69625473T DE 69625473 T DE69625473 T DE 69625473T DE 69625473 T2 DE69625473 T2 DE 69625473T2
- Authority
- DE
- Germany
- Prior art keywords
- control system
- clock control
- clock
- control
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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; 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
- G06F1/08—Clock generators with changeable or programmable clock frequency
-
- 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
- G06F1/12—Synchronisation of different clock signals provided by a plurality of clock generators
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F11/1695—Error detection or correction of the data by redundancy in hardware which are operating with time diversity
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/413,857 US5758132A (en) | 1995-03-29 | 1995-03-29 | Clock control system and method using circuitry operating at lower clock frequency for selecting and synchronizing the switching of higher frequency clock signals |
PCT/SE1996/000371 WO1996030832A1 (en) | 1995-03-29 | 1996-03-25 | Clock control system and method |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69625473D1 DE69625473D1 (de) | 2003-01-30 |
DE69625473T2 true DE69625473T2 (de) | 2003-10-02 |
Family
ID=23638957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69625473T Expired - Lifetime DE69625473T2 (de) | 1995-03-29 | 1996-03-25 | Taktsteuerungssystem- und verfahren |
Country Status (9)
Country | Link |
---|---|
US (1) | US5758132A (de) |
EP (1) | EP0817999B1 (de) |
JP (1) | JPH11502959A (de) |
KR (1) | KR100301720B1 (de) |
CN (1) | CN1090779C (de) |
AU (1) | AU5166496A (de) |
CA (1) | CA2216525A1 (de) |
DE (1) | DE69625473T2 (de) |
WO (1) | WO1996030832A1 (de) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE506739C2 (sv) * | 1995-09-29 | 1998-02-09 | Ericsson Telefon Ab L M | Drift och underhåll av klockdistributionsnät med redundans |
US5802355A (en) * | 1996-12-10 | 1998-09-01 | International Business Machines Corporation | Multi-processor system using processors of different speeds |
US6198820B1 (en) * | 1996-12-18 | 2001-03-06 | Kyocera Corporation | Portable remote terminal apparatus |
US5896524A (en) * | 1997-02-06 | 1999-04-20 | Digital Equipment Corporation | Off-line clock synchronization for multiprocessor event traces |
WO1999019874A1 (en) | 1997-10-10 | 1999-04-22 | Rambus Incorporated | Power control system for synchronous memory device |
AU9604698A (en) | 1997-10-10 | 1999-05-03 | Rambus Incorporated | Method and apparatus for two step memory write operations |
US6401167B1 (en) * | 1997-10-10 | 2002-06-04 | Rambus Incorporated | High performance cost optimized memory |
US6965974B1 (en) * | 1997-11-14 | 2005-11-15 | Agere Systems Inc. | Dynamic partitioning of memory banks among multiple agents |
US6324652B1 (en) * | 1999-01-15 | 2001-11-27 | 3Com Corporation | Asynchronous switching circuit for multiple indeterminate bursting clocks |
JP2000356455A (ja) * | 1999-06-17 | 2000-12-26 | Mitsubishi Electric Corp | 半導体機器及び冷蔵庫 |
JP2001034496A (ja) * | 1999-07-22 | 2001-02-09 | Nec Corp | 自己修復回路 |
JP2001069585A (ja) * | 1999-08-31 | 2001-03-16 | Fujitsu Ltd | 二重化装置及びハイウェイインタフェース回路 |
JP3906015B2 (ja) * | 2000-07-12 | 2007-04-18 | 株式会社東芝 | クロック周波数切り替え機能を有するlsi、計算機システム及びクロック周波数切り替え方法 |
US6959396B2 (en) * | 2001-11-09 | 2005-10-25 | Silicon Integrated Systems Corp. | Method and apparatus for reducing clock skew in an integrated circuit |
US6600345B1 (en) * | 2001-11-15 | 2003-07-29 | Analog Devices, Inc. | Glitch free clock select switch |
JP2003158512A (ja) | 2001-11-21 | 2003-05-30 | Nec Corp | デジタル信号処理方式及びデータ処理装置 |
US7076671B2 (en) | 2002-08-12 | 2006-07-11 | Hewlett-Packard Development Company, L.P. | Managing an operating frequency of processors in a multi-processor computer system |
US7185214B2 (en) | 2002-08-12 | 2007-02-27 | Hewlett-Packard Development Company, L.P. | System and method for load dependent frequency and performance modulation in bladed systems |
US7548971B2 (en) * | 2002-08-12 | 2009-06-16 | Hewlett-Packard Development Company, L.P. | System and method for managing the operating frequency of blades in a bladed-system |
ATE407398T1 (de) * | 2004-10-25 | 2008-09-15 | Bosch Gmbh Robert | Verfahren und vorrichtung zur synchronisierung in einem mehrprozessorsystem |
ATE407401T1 (de) | 2004-10-25 | 2008-09-15 | Bosch Gmbh Robert | Verfahren und vorrichtung zur erzeugung eines modussignals bei einem rechnersystem mit mehreren komponenten |
CN100381968C (zh) * | 2004-11-01 | 2008-04-16 | 联发科技股份有限公司 | 系统时钟脉冲切换装置以及切换其频率的方法 |
KR101249251B1 (ko) * | 2006-01-04 | 2013-04-01 | 삼성전자주식회사 | 플래시 메모리 컨트롤러 |
JP4328334B2 (ja) | 2006-03-13 | 2009-09-09 | パナソニック株式会社 | 半導体集積回路装置 |
CN101078944B (zh) * | 2007-05-11 | 2010-05-26 | 东南大学 | 时钟切换电路 |
US8015428B2 (en) * | 2007-06-12 | 2011-09-06 | Renesas Electronics Corporation | Processing device and clock control method |
JP5244405B2 (ja) * | 2008-01-22 | 2013-07-24 | 京セラドキュメントソリューションズ株式会社 | 画像形成装置 |
WO2009107108A1 (en) * | 2008-02-28 | 2009-09-03 | Nxp B.V. | Clock switching circuits and methods |
JP5167410B2 (ja) * | 2009-01-09 | 2013-03-21 | 株式会社日立製作所 | 複数のマイクロプロセッサを有するストレージシステム、及び、そのストレージシステムにおける処理分担方法 |
CN102317885B (zh) * | 2011-07-26 | 2014-05-07 | 华为技术有限公司 | 计算机系统及其配置时钟的方法 |
US9218018B2 (en) * | 2012-09-14 | 2015-12-22 | Oracle International Corporation | Method and apparatus for distributed generation of multiple configurable ratioed clock domains within a high speed domain |
KR102299330B1 (ko) | 2014-11-26 | 2021-09-08 | 삼성전자주식회사 | 음성 인식 방법 및 그 전자 장치 |
US11895588B2 (en) | 2020-08-05 | 2024-02-06 | Analog Devices, Inc. | Timing precision maintenance with reduced power during system sleep |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3539933A (en) * | 1967-09-07 | 1970-11-10 | Bell Telephone Labor Inc | Switchover logic circuit |
US3806887A (en) * | 1973-01-02 | 1974-04-23 | Fte Automatic Electric Labor I | Access circuit for central processors of digital communication system |
US4270168A (en) * | 1978-08-31 | 1981-05-26 | United Technologies Corporation | Selective disablement in fail-operational, fail-safe multi-computer control system |
US4254475A (en) * | 1979-03-12 | 1981-03-03 | Raytheon Company | Microprocessor having dual frequency clock |
US4254492A (en) * | 1979-04-02 | 1981-03-03 | Rockwell International Corporation | Redundant clock system utilizing nonsynchronous oscillators |
US4428044A (en) * | 1979-09-20 | 1984-01-24 | Bell Telephone Laboratories, Incorporated | Peripheral unit controller |
US4398155A (en) * | 1981-06-15 | 1983-08-09 | Motorola, Inc. | Multiple clock switching circuit |
US4677433A (en) * | 1983-02-16 | 1987-06-30 | Daisy Systems Corporation | Two-speed clock scheme for co-processors |
US4819164A (en) * | 1983-12-12 | 1989-04-04 | Texas Instruments Incorporated | Variable frequency microprocessor clock generator |
US4823256A (en) * | 1984-06-22 | 1989-04-18 | American Telephone And Telegraph Company, At&T Bell Laboratories | Reconfigurable dual processor system |
US4674036A (en) * | 1984-11-23 | 1987-06-16 | Gte Communication Systems Corporation | Duplex controller synchronization circuit for processors which utilizes an address input |
US4777270A (en) * | 1985-01-25 | 1988-10-11 | Pfizer Inc. | Macrocyclic polyether carboxylic acids |
DE3517662C2 (de) * | 1985-05-15 | 1993-12-02 | Siemens Ag | Einrichtung zum bedarfsweisen Vermindern eines Verarbeitungstaktes |
US5086387A (en) * | 1986-01-17 | 1992-02-04 | International Business Machines Corporation | Multi-frequency clock generation with low state coincidence upon latching |
IT1189150B (it) * | 1986-06-10 | 1988-01-28 | Honeywell Inf Systems | Unita' di temporizzazione in tecnologia ttl |
US4899351A (en) * | 1988-07-18 | 1990-02-06 | Western Digital Corporation | Transient free clock switch logic |
US5197126A (en) * | 1988-09-15 | 1993-03-23 | Silicon Graphics, Inc. | Clock switching circuit for asynchronous clocks of graphics generation apparatus |
US4987578A (en) * | 1988-10-07 | 1991-01-22 | Advanced Micro Devices, Inc. | Mask programmable bus control gate array |
JPH0797328B2 (ja) * | 1988-10-25 | 1995-10-18 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | フオールト・トレラント同期システム |
US5115503A (en) * | 1989-01-12 | 1992-05-19 | Dell U.S.A. Corporation | System for adapting its clock frequency to that of an associated bus only when it requires usage thereof |
JPH0387909A (ja) * | 1989-05-10 | 1991-04-12 | Seiko Epson Corp | 情報処理装置およびマイクロプロセッサ |
US5249206A (en) * | 1989-08-11 | 1993-09-28 | International Business Machines Corporation | Fault-tolerant clock for multicomputer complex |
US5023487A (en) * | 1989-09-29 | 1991-06-11 | Texas Instruments Incorporated | ECL/TTL-CMOS translator bus interface architecture |
JPH0424860A (ja) * | 1990-05-20 | 1992-01-28 | Fujitsu Ltd | 複数プロセッサの同期制御方式 |
DE69022221T2 (de) * | 1990-06-01 | 1996-04-04 | Bell Telephone Mfg | Verfahren zum Modifizieren eines fehlertoleranten Datenverarbeitungssystems. |
US5191581A (en) * | 1990-12-07 | 1993-03-02 | Digital Equipment Corporation | Method and apparatus for providing high performance interconnection between interface circuits coupled to information buses |
US5136180A (en) * | 1991-02-12 | 1992-08-04 | Vlsi Technology, Inc. | Variable frequency clock for a computer system |
US5155380A (en) * | 1991-04-12 | 1992-10-13 | Acer Incorporated | Clock switching circuit and method for preventing glitch during switching |
GB9109445D0 (en) * | 1991-05-01 | 1991-06-26 | Ncr Co | A circuit for glitch-free switching of asynchronous clock sources |
US5294842A (en) * | 1991-09-23 | 1994-03-15 | Digital Equipment Corp. | Update synchronizer |
US5329188A (en) * | 1991-12-09 | 1994-07-12 | Cray Research, Inc. | Clock pulse measuring and deskewing system and process |
US5274678A (en) * | 1991-12-30 | 1993-12-28 | Intel Corporation | Clock switching apparatus and method for computer systems |
JPH05259848A (ja) * | 1992-03-11 | 1993-10-08 | Nec Corp | クロック発生装置 |
US5227672A (en) * | 1992-03-31 | 1993-07-13 | Astec International, Ltd. | Digital clock selection and changeover apparatus |
US5379415A (en) * | 1992-09-29 | 1995-01-03 | Zitel Corporation | Fault tolerant memory system |
EP0591593A1 (de) * | 1992-10-09 | 1994-04-13 | International Business Machines Corporation | Verfahren und Anordnung zur Verwaltung von asynchronen Ereignissen in einem endlichen Automaten |
JPH075949A (ja) * | 1993-06-18 | 1995-01-10 | Nec Corp | 2重化クロック切替えの方法と装置 |
US5315181A (en) * | 1993-07-07 | 1994-05-24 | Maxtor Corporation | Circuit for synchronous, glitch-free clock switching |
US5467465A (en) * | 1993-11-17 | 1995-11-14 | Umax Data System Inc. | Two clock method for synchronizing a plurality of identical processors connected in parallel |
US5422915A (en) * | 1993-12-23 | 1995-06-06 | Unisys Corporation | Fault tolerant clock distribution system |
US5485602A (en) * | 1993-12-27 | 1996-01-16 | Motorola, Inc. | Integrated circuit having a control signal for identifying coinciding active edges of two clock signals |
-
1995
- 1995-03-29 US US08/413,857 patent/US5758132A/en not_active Expired - Lifetime
-
1996
- 1996-03-25 DE DE69625473T patent/DE69625473T2/de not_active Expired - Lifetime
- 1996-03-25 CN CN96194251A patent/CN1090779C/zh not_active Expired - Fee Related
- 1996-03-25 JP JP8529257A patent/JPH11502959A/ja active Pending
- 1996-03-25 EP EP96908427A patent/EP0817999B1/de not_active Expired - Lifetime
- 1996-03-25 CA CA002216525A patent/CA2216525A1/en not_active Abandoned
- 1996-03-25 KR KR1019970706850A patent/KR100301720B1/ko not_active IP Right Cessation
- 1996-03-25 WO PCT/SE1996/000371 patent/WO1996030832A1/en active IP Right Grant
- 1996-03-25 AU AU51664/96A patent/AU5166496A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP0817999B1 (de) | 2002-12-18 |
WO1996030832A1 (en) | 1996-10-03 |
KR19980703446A (ko) | 1998-11-05 |
DE69625473D1 (de) | 2003-01-30 |
CN1185847A (zh) | 1998-06-24 |
AU5166496A (en) | 1996-10-16 |
JPH11502959A (ja) | 1999-03-09 |
EP0817999A1 (de) | 1998-01-14 |
KR100301720B1 (ko) | 2001-10-27 |
CA2216525A1 (en) | 1996-10-03 |
CN1090779C (zh) | 2002-09-11 |
US5758132A (en) | 1998-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |