GB873500A - Arrangements consisting of electronic switching means for establishing the exclusive "or"-condition - Google Patents

Arrangements consisting of electronic switching means for establishing the exclusive "or"-condition

Info

Publication number
GB873500A
GB873500A GB1151658A GB1151658A GB873500A GB 873500 A GB873500 A GB 873500A GB 1151658 A GB1151658 A GB 1151658A GB 1151658 A GB1151658 A GB 1151658A GB 873500 A GB873500 A GB 873500A
Authority
GB
United Kingdom
Prior art keywords
exclusive
lines
potential difference
establishing
condition
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
GB1151658A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB873500A publication Critical patent/GB873500A/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
    • H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
    • H03K19/21—EXCLUSIVE-OR circuits, i.e. giving output if input signal exists at only one input; COINCIDENCE circuits, i.e. giving output only if all input signals are identical
    • H03K19/212—EXCLUSIVE-OR circuits, i.e. giving output if input signal exists at only one input; COINCIDENCE circuits, i.e. giving output only if all input signals are identical using bipolar transistors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Electronic Switches (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

873,500. Diode gating circuits. STANDARD TELEPHONES & CABLES Ltd. April 11, 1958 [April 13, 1957], No. 11516/58. Class 40(6) In an "EXCLUSIVE-OR" circuit the earthing of either of input lines a, b, but not both, causes a potential difference to be established between output lines c, d, due to the potential difference produced across the centre-tapped impedance R3 as a result of the asymmetry produced by the earthing. The impedance R3 may be replaced by two oppositely poled diodes Fig. 2 (not shown). In the arrangement illustrated the potential difference between the lines c, d is used to energized a relay C via the transistor T. Alternatively the relay C may be operated directly from the output on lines c, d.
GB1151658A 1957-04-13 1958-04-11 Arrangements consisting of electronic switching means for establishing the exclusive "or"-condition Expired GB873500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST12445A DE1052719B (en) 1957-04-13 1957-04-13 Arrangement consisting of electronic switching means to create the exclusive or condition

Publications (1)

Publication Number Publication Date
GB873500A true GB873500A (en) 1961-07-26

Family

ID=7455713

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1151658A Expired GB873500A (en) 1957-04-13 1958-04-11 Arrangements consisting of electronic switching means for establishing the exclusive "or"-condition

Country Status (2)

Country Link
DE (1) DE1052719B (en)
GB (1) GB873500A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512009A (en) * 1967-05-22 1970-05-12 Nasa Exclusive-or digital logic module
US4053794A (en) * 1974-11-21 1977-10-11 Texas Instruments Incorporated Semiconductor logic gates

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1244857B (en) * 1965-09-02 1967-07-20 Telefunken Patent Circuit arrangement for checking the equality or inequality of signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512009A (en) * 1967-05-22 1970-05-12 Nasa Exclusive-or digital logic module
US4053794A (en) * 1974-11-21 1977-10-11 Texas Instruments Incorporated Semiconductor logic gates

Also Published As

Publication number Publication date
DE1052719B (en) 1959-03-12

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