CH613794A5 - - Google Patents

Info

Publication number
CH613794A5
CH613794A5 CH948476A CH948476A CH613794A5 CH 613794 A5 CH613794 A5 CH 613794A5 CH 948476 A CH948476 A CH 948476A CH 948476 A CH948476 A CH 948476A CH 613794 A5 CH613794 A5 CH 613794A5
Authority
CH
Switzerland
Application number
CH948476A
Inventor
Katsutoshi Kuwabara
Katsuaki Goto
Original Assignee
Hochiki Co
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
Priority claimed from JP50090056A external-priority patent/JPS5214338A/ja
Priority claimed from JP50090055A external-priority patent/JPS5214337A/ja
Application filed by Hochiki Co filed Critical Hochiki Co
Publication of CH613794A5 publication Critical patent/CH613794A5/xx

Links

Classifications

    • 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
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/354—Astable circuits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
CH948476A 1975-07-25 1976-07-23 CH613794A5 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP50090056A JPS5214338A (en) 1975-07-25 1975-07-25 Oscillator circuit
JP50090055A JPS5214337A (en) 1975-07-25 1975-07-25 Oscillator circuit

Publications (1)

Publication Number Publication Date
CH613794A5 true CH613794A5 (fr) 1979-10-15

Family

ID=26431571

Family Applications (1)

Application Number Title Priority Date Filing Date
CH948476A CH613794A5 (fr) 1975-07-25 1976-07-23

Country Status (5)

Country Link
US (1) US4058777A (fr)
CH (1) CH613794A5 (fr)
DE (1) DE2633383A1 (fr)
FR (1) FR2319246A1 (fr)
GB (1) GB1552321A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003662A3 (fr) * 1978-02-03 1979-09-05 Hochiki Corporation Système de station isolé d'alerte d'incendie et un multivibrateur dans le circuit de détection
US4295062A (en) * 1979-04-02 1981-10-13 National Semiconductor Corporation CMOS Schmitt trigger and oscillator
US4286233A (en) * 1979-07-09 1981-08-25 Rca Corporation Gated oscillator
JPS6153759A (ja) * 1984-08-23 1986-03-17 Fujitsu Ltd 発振回路
JPS6346599A (ja) * 1986-08-14 1988-02-27 ニツタン株式会社 環境異常検出器
US4837458A (en) * 1986-08-22 1989-06-06 Hitachi, Ltd. Flip-flop circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851277A (en) * 1972-12-27 1974-11-26 Tokyo Shibaura Electric Co Astable multivibrator using insulated-gate field effect transistors
US3875527A (en) * 1973-07-11 1975-04-01 Hernando Javier Garcia Environmental parameter controlled oscillator system

Also Published As

Publication number Publication date
US4058777A (en) 1977-11-15
DE2633383A1 (de) 1977-02-17
GB1552321A (en) 1979-09-12
FR2319246A1 (fr) 1977-02-18

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Legal Events

Date Code Title Description
PL Patent ceased