GB2003341A - Logic circuits - Google Patents

Logic circuits

Info

Publication number
GB2003341A
GB2003341A GB7833491A GB7833491A GB2003341A GB 2003341 A GB2003341 A GB 2003341A GB 7833491 A GB7833491 A GB 7833491A GB 7833491 A GB7833491 A GB 7833491A GB 2003341 A GB2003341 A GB 2003341A
Authority
GB
United Kingdom
Prior art keywords
logic
pulse train
pulse trains
function
pulse
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
GB7833491A
Other versions
GB2003341B (en
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB2003341A publication Critical patent/GB2003341A/en
Application granted granted Critical
Publication of GB2003341B publication Critical patent/GB2003341B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/007—Fail-safe circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/003—Modifications for increasing the reliability for protection
    • H03K19/00392—Modifications for increasing the reliability for protection by circuit redundancy
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/16—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using saturable magnetic devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Protection Of Static Devices (AREA)
  • Inverter Devices (AREA)
  • Measuring Magnetic Variables (AREA)
  • Laser Beam Printer (AREA)

Abstract

Pulse train processing is carried out in a dynamic safety system comprising a clock means (not shown) for generating pulse trains and a logic AND means for detecting presence or absence of an AND function for a plurality of said pulse trains GE1, GE2, GE3 which are applied to first inputs 151, 152, 153 of respective bistable elements 157, 158, 159, e.g. magnetic storage cores, of said logic AND means. The first bistable element has applied to a second input 150 a timing pulse train SA1 which is phase-shifted in relation to the pulse trains GE1, GE2, GE3. The three bistable elements 157, 158, 159 are connected in series with one another by leads 154, 155. When the AND function is satisfied, a pulse train SA1''' leaves the logic AND means by way of an output 156. <IMAGE>
GB7833491A 1977-08-19 1978-08-16 Pulse train processing Expired GB2003341B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2737528A DE2737528C2 (en) 1977-08-19 1977-08-19 Dynamic protection system

Publications (2)

Publication Number Publication Date
GB2003341A true GB2003341A (en) 1979-03-07
GB2003341B GB2003341B (en) 1982-03-10

Family

ID=6016847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7833491A Expired GB2003341B (en) 1977-08-19 1978-08-16 Pulse train processing

Country Status (6)

Country Link
BE (1) BE869861A (en)
DE (1) DE2737528C2 (en)
FR (1) FR2400803A1 (en)
GB (1) GB2003341B (en)
NL (1) NL7807782A (en)
SE (1) SE7808615L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3570963D1 (en) * 1984-03-21 1989-07-13 Siemens Ag Circuit for memorizing dynamic logic signals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1566782B1 (en) 1967-04-13 1970-10-08 Siemens Ag Procedure for testing pulse-operated circuits and circuit arrangements for its implementation
DE2235937A1 (en) * 1972-07-21 1974-01-31 Siemens Ag DYNAMIC WORKING SAFETY SYSTEM

Also Published As

Publication number Publication date
GB2003341B (en) 1982-03-10
BE869861A (en) 1979-02-19
NL7807782A (en) 1979-02-21
FR2400803A1 (en) 1979-03-16
DE2737528C2 (en) 1983-01-20
SE7808615L (en) 1979-02-20
DE2737528A1 (en) 1979-02-22
FR2400803B3 (en) 1981-03-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930816