GB1037834A - Improvements relating to information or control systems - Google Patents

Improvements relating to information or control systems

Info

Publication number
GB1037834A
GB1037834A GB9244/63A GB924463A GB1037834A GB 1037834 A GB1037834 A GB 1037834A GB 9244/63 A GB9244/63 A GB 9244/63A GB 924463 A GB924463 A GB 924463A GB 1037834 A GB1037834 A GB 1037834A
Authority
GB
United Kingdom
Prior art keywords
unit
units
output
signal
faulty
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
Application number
GB9244/63A
Inventor
Brian Sinclair Wolfe
Malcolm Leslie Gilbert
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.)
Allard Way Holdings Ltd
Original Assignee
Elliott Brothers London Ltd
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 Elliott Brothers London Ltd filed Critical Elliott Brothers London Ltd
Priority to GB9244/63A priority Critical patent/GB1037834A/en
Priority to FR966318A priority patent/FR1383685A/en
Publication of GB1037834A publication Critical patent/GB1037834A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
    • 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
    • H04B1/74—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 for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Hardware Redundancy (AREA)

Abstract

1,037,834. Automatic change-over of faulty circuits. ELLIOTT BROS. (LONDON) Ltd. March 6, 1964 [March 8, 1963], No. 9244/63. Headings H3W and H4R. An electronic system includes at least two interchangeable similar components arranged for alternative operation in the system the operative one of which is continuously monitored by feeding its output signal through a network having a transfer function which is an inverse of the transfer function of the component itself, and comparing the output of this network with the input to the component, and if these signals are not similar a switching circuit disconnects the faulty unit and connects the alternative unit. Fig. 2 shows a system in which units K3 and K4 are included in a signal path and unit K5 is a spare unit which may be connected in place of one of the units K3 and K4 if one of these should develop a fault. Each of the units has a comparison unit MA1, MA2, or MA3, associated with it which compares the input signal to the unit K3 &c. with the output from that unit after it has been modified by the inverse transfer network. If the comparison determines a difference an output is fed to a logic circuit, Fig. 4 (not shown), which energizes the appropriate switching networks FF1, FF2, and FF3, to bias the diodes D1 to D10 appropriately to disconnect the faulty unit from the signal circuit and substitute the spare unit K5 in its place. The spare unit may also be continuously monitored by a test signal applied to its input and the logic circuit may have alarm circuits to indicate which of the units have developed faults.
GB9244/63A 1963-03-08 1963-03-08 Improvements relating to information or control systems Expired GB1037834A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9244/63A GB1037834A (en) 1963-03-08 1963-03-08 Improvements relating to information or control systems
FR966318A FR1383685A (en) 1963-03-08 1964-03-06 Information or ordering system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9244/63A GB1037834A (en) 1963-03-08 1963-03-08 Improvements relating to information or control systems

Publications (1)

Publication Number Publication Date
GB1037834A true GB1037834A (en) 1966-08-03

Family

ID=9868217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9244/63A Expired GB1037834A (en) 1963-03-08 1963-03-08 Improvements relating to information or control systems

Country Status (2)

Country Link
FR (1) FR1383685A (en)
GB (1) GB1037834A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189192A1 (en) * 1985-01-24 1986-07-30 BURROUGHS CORPORATION (a Delaware corporation) Method of operating a two-wire local area network such that marginal components in the secondary loop are located

Also Published As

Publication number Publication date
FR1383685A (en) 1964-12-24

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