[go: up one dir, main page]

GB1044373A - An electrical system for selecting and interconnecting one of a plurality of instruments to a control station - Google Patents

An electrical system for selecting and interconnecting one of a plurality of instruments to a control station

Info

Publication number
GB1044373A
GB1044373A GB1166462A GB1166462A GB1044373A GB 1044373 A GB1044373 A GB 1044373A GB 1166462 A GB1166462 A GB 1166462A GB 1166462 A GB1166462 A GB 1166462A GB 1044373 A GB1044373 A GB 1044373A
Authority
GB
United Kingdom
Prior art keywords
transistor
line
diode
measuring
negative potential
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
GB1166462A
Inventor
Kenneth William Chandler
Bernard Noel Foot
Henry Stephen Shillingford
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.)
University of Surrey
Original Assignee
University of Surrey
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 University of Surrey filed Critical University of Surrey
Priority to GB1166462A priority Critical patent/GB1044373A/en
Publication of GB1044373A publication Critical patent/GB1044373A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
    • H03K17/6257—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several inputs only combined with selecting means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

1,044,373. Transistor gating circuits. COAL INDUSTRY (PATENTS) Ltd. June 25, 1963 [March 27, 1962], No. 11664/62. Heading H3T. [Also in Division G1] A transistor gating circuit, for use in an electrical measuring system (see Division G1), consists of a transistor T5 and a diode D2. If a negative potential is applied to line 1 a signal from measuring apparatus 12 is applied to the base of the transistor, and diode D2 becomes forward biased as the transistor emitter takes up a negative potential. The measuring signal is then passed through lines S, C to control station 10. While D2 is conductive a negative potential exists on line S to back-bias the diodes associated with all other measuring heads connected to lines S, C. Line 14 is provided to remove the measuring signal from the base of transistor T5 when no bias is applied to line 1. In a modified arrangement diode D16 is connected to the collector of transistor J16, and the output is taken across resistor R36 connected between the emitter and collector.
GB1166462A 1962-03-27 1962-03-27 An electrical system for selecting and interconnecting one of a plurality of instruments to a control station Expired GB1044373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1166462A GB1044373A (en) 1962-03-27 1962-03-27 An electrical system for selecting and interconnecting one of a plurality of instruments to a control station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1166462A GB1044373A (en) 1962-03-27 1962-03-27 An electrical system for selecting and interconnecting one of a plurality of instruments to a control station

Publications (1)

Publication Number Publication Date
GB1044373A true GB1044373A (en) 1966-09-28

Family

ID=9990413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1166462A Expired GB1044373A (en) 1962-03-27 1962-03-27 An electrical system for selecting and interconnecting one of a plurality of instruments to a control station

Country Status (1)

Country Link
GB (1) GB1044373A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410929A1 (en) * 1977-12-02 1979-06-29 Os Bad Rozwojowy Syste SWITCHING DEVICE, USING A DIGITAL CALCULATOR, WITH TELEMETRY CHANNELS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410929A1 (en) * 1977-12-02 1979-06-29 Os Bad Rozwojowy Syste SWITCHING DEVICE, USING A DIGITAL CALCULATOR, WITH TELEMETRY CHANNELS

Similar Documents

Publication Publication Date Title
GB1065420A (en) Electro-optical coupling device
GB1083417A (en) Apparatus for detecting overlapping sheet-like objects
GB1159891A (en) Keyboard Terminal
GB1330576A (en) Logic circuits
GB1279029A (en) Radar apparatus
GB889314A (en) Improvements in or relating to electric gating circuits
GB1238589A (en)
GB1044373A (en) An electrical system for selecting and interconnecting one of a plurality of instruments to a control station
GB1257722A (en)
ATE67906T1 (en) ECL CIRCUITS.
GB1279512A (en) Improvements in or relating to emitter coupled logic circuits
GB1394439A (en) Input circuit for multiple emitter transistor
GB1002575A (en) Logical circuits
GB935221A (en) Improvements in logical circuits
GB1190185A (en) Light Sensitive Circuit Arrangements
GB981639A (en) Improvements in or relating to transistor repeaters
GB977080A (en) Improvements relating to two state electronic switching arrangements
ES340823A1 (en) Non-saturating inhibit switching circuit
GB990193A (en) Improvements in or relating to monostable trigger arrangements
GB873500A (en) Arrangements consisting of electronic switching means for establishing the exclusive "or"-condition
GB1008685A (en) A comparator circuit
GB1022722A (en) Semiconductor laser operated coincidence device
GB1099887A (en) Switching circuit
GB995218A (en) Improvements in and relating to circuit arrangements for separating signals
GB972130A (en) Electrical gating circuits