DE68914805D1 - Digitaler Frequenzteiler. - Google Patents

Digitaler Frequenzteiler.

Info

Publication number
DE68914805D1
DE68914805D1 DE68914805T DE68914805T DE68914805D1 DE 68914805 D1 DE68914805 D1 DE 68914805D1 DE 68914805 T DE68914805 T DE 68914805T DE 68914805 T DE68914805 T DE 68914805T DE 68914805 D1 DE68914805 D1 DE 68914805D1
Authority
DE
Germany
Prior art keywords
frequency divider
digital frequency
digital
divider
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.)
Expired - Fee Related
Application number
DE68914805T
Other languages
English (en)
Other versions
DE68914805T2 (de
Inventor
Luke A Perkins
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.)
SK Hynix Inc
NCR International Inc
Original Assignee
NCR 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 NCR Corp filed Critical NCR Corp
Publication of DE68914805D1 publication Critical patent/DE68914805D1/de
Application granted granted Critical
Publication of DE68914805T2 publication Critical patent/DE68914805T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/68—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a base which is a non-integer

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Manipulation Of Pulses (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Complex Calculations (AREA)
DE68914805T 1988-12-12 1989-11-15 Digitaler Frequenzteiler. Expired - Fee Related DE68914805T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/282,547 US4991188A (en) 1988-12-12 1988-12-12 Digital frequency divider

Publications (2)

Publication Number Publication Date
DE68914805D1 true DE68914805D1 (de) 1994-05-26
DE68914805T2 DE68914805T2 (de) 1994-12-08

Family

ID=23082014

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68914805T Expired - Fee Related DE68914805T2 (de) 1988-12-12 1989-11-15 Digitaler Frequenzteiler.

Country Status (5)

Country Link
US (1) US4991188A (de)
EP (1) EP0373768B1 (de)
JP (1) JP2976981B2 (de)
KR (1) KR940006930B1 (de)
DE (1) DE68914805T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991188A (en) 1988-12-12 1991-02-05 Ncr Corporation Digital frequency divider
US5088057A (en) * 1990-04-05 1992-02-11 At&T Bell Laboratories Rational rate frequency generator
EP0491064A1 (de) * 1990-12-17 1992-06-24 Siemens Aktiengesellschaft Verfahren und Anordnung zum Teilen der Frequenz einer Wechselspannung mit einem nicht ganzzahligen Teilungsfaktor
FR2671204A1 (fr) * 1990-12-28 1992-07-03 Apple Computer Circuit dont les signaux de sortie sont une fraction des signaux d'entree.
US5255213A (en) * 1990-12-28 1993-10-19 Apple Computer, Inc. Apparatus for providing selectable fractional output signals
US5202642A (en) * 1991-05-09 1993-04-13 Iomega Corporation Apparatus and method for fractional frequency division
FR2704372B1 (fr) * 1993-04-20 1995-05-24 Commissariat Energie Atomique Dispositif de division de fréquence.
JP3294687B2 (ja) * 1993-09-25 2002-06-24 株式会社リコー クロック分周器およびモータ駆動制御装置
TW379293B (en) * 1994-04-01 2000-01-11 Ibm Apparatus and method for generating a clock in a microprocessor
FI100285B (fi) * 1995-12-11 1997-10-31 Nokia Mobile Phones Ltd Taajuudenmuodostuspiiri
US5719798A (en) * 1995-12-22 1998-02-17 Lucent Technologies Inc. Programmable modulo k counter
US6003053A (en) * 1996-11-29 1999-12-14 Matsushita Electric Works, Ltd. Pulse signal generation circuit and pulse signal generation method
US6076096A (en) * 1998-01-13 2000-06-13 Motorola Inc. Binary rate multiplier
DE19946007C2 (de) * 1999-09-27 2001-08-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Vorrichtung zur Erzeugung von digitalen Steuersignalen
US6937290B1 (en) * 2001-09-28 2005-08-30 Nvidia Corporation Method and apparatus using the Bresenham algorithm to synthesize a composite SYNC signal
US7035369B2 (en) * 2004-05-12 2006-04-25 Harris Corporation Apparatus and method for a programmable clock generator
TW200736509A (en) * 2006-03-21 2007-10-01 King Motor Technology Co Ltd A position-locating method for servomotor controller
US8554815B1 (en) 2006-11-09 2013-10-08 Applied Micro Circuits Corporation Frequency generation using a single reference clock and a primitive ratio of integers
US8346840B2 (en) * 2007-12-12 2013-01-01 Applied Micro Circuits Corporation Flexible accumulator for rational division
US8478805B1 (en) * 2007-03-12 2013-07-02 Applied Micro Circuits Corporation Frequency synthesis with low resolution rational division decomposition
US8762436B1 (en) * 2007-03-13 2014-06-24 Applied Micro Circuits Corporation Frequency synthesis with low resolution rational division
JP6115715B2 (ja) * 2013-03-26 2017-04-19 セイコーエプソン株式会社 クロック生成装置、電子機器、移動体及びクロック生成方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1928327B2 (de) * 1969-06-03 1972-05-10 Schlumberger, Overseas Meßgerätebau u. Vertrieb GmbH, 8000 München Schaltungsanordnung fuer einen elektronischen frequenzteiler mit variablem teilungsverhaeltnis
JPS5034181B1 (de) * 1969-12-13 1975-11-06
DE2400394C3 (de) * 1974-01-05 1981-09-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur digitalen Frequenzteilung
JPS5111500A (en) * 1974-07-18 1976-01-29 Nagoya Railroad Basuno teiryujosogokanhatsuchakujokyakusuchosahohooyobi sochi
US4031476A (en) * 1976-05-12 1977-06-21 Rca Corporation Non-integer frequency divider having controllable error
DE2654955A1 (de) * 1976-12-03 1978-06-08 Siemens Ag Schaltungsanordnung zur erzeugung einer ausgangsimpulsfolge
DE2742184C2 (de) * 1977-09-20 1983-09-22 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum Erzeugen eines Schaltsignals entsprechend der Zeilenfrequenz eines Fernsehsignals
DE2849797C2 (de) * 1978-11-16 1982-03-11 Siemens AG, 1000 Berlin und 8000 München Digitale Frequenzteileranordnung
JPS5633734A (en) * 1979-08-25 1981-04-04 Aisuke Katayama Divisor conversion type high-speed division system
US4413350A (en) * 1981-01-12 1983-11-01 General Datacomm Industries, Inc. Programmable clock rate generator
DE3608766A1 (de) * 1986-03-15 1987-09-17 Wolfgang Hopf Elektronisches getriebe
US4991188A (en) 1988-12-12 1991-02-05 Ncr Corporation Digital frequency divider

Also Published As

Publication number Publication date
JPH02224417A (ja) 1990-09-06
KR940006930B1 (ko) 1994-07-29
EP0373768A2 (de) 1990-06-20
JP2976981B2 (ja) 1999-11-10
US4991188A (en) 1991-02-05
KR900011156A (ko) 1990-07-11
EP0373768A3 (en) 1990-11-14
EP0373768B1 (de) 1994-04-20
DE68914805T2 (de) 1994-12-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL IN

8327 Change in the person/name/address of the patent owner

Owner name: AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL IN

8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL, INC. (N.D.GES.D.STAATES DELAWAR

8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL, INC. (N.D.GES.D.STAATES DELAWAR

8328 Change in the person/name/address of the agent

Free format text: V. BEZOLD & SOZIEN, 80799 MUENCHEN

8339 Ceased/non-payment of the annual fee
8327 Change in the person/name/address of the patent owner

Owner name: HYNIX SEMICONDUCTOR INC., ICHON, KYONGGI, KR

Owner name: NCR INTERNATIONAL, INC. (N.D.GES.D.STAATES DEL, US