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
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
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- 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50090055A JPS5214337A (en) | 1975-07-25 | 1975-07-25 | Oscillator circuit |
| JP50090056A JPS5214338A (en) | 1975-07-25 | 1975-07-25 | Oscillator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH613794A5 true CH613794A5 (es) | 1979-10-15 |
Family
ID=26431571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH948476A CH613794A5 (es) | 1975-07-25 | 1976-07-23 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4058777A (es) |
| CH (1) | CH613794A5 (es) |
| DE (1) | DE2633383A1 (es) |
| FR (1) | FR2319246A1 (es) |
| GB (1) | GB1552321A (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0003662A3 (en) * | 1978-02-03 | 1979-09-05 | Hochiki Corporation | Single station type fire alarm system and a multivibrator used in the detection circuitry |
| 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)
| 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 |
-
1976
- 1976-07-23 FR FR7622631A patent/FR2319246A1/fr not_active Withdrawn
- 1976-07-23 CH CH948476A patent/CH613794A5/xx not_active IP Right Cessation
- 1976-07-24 DE DE19762633383 patent/DE2633383A1/de not_active Withdrawn
- 1976-07-26 US US05/708,683 patent/US4058777A/en not_active Expired - Lifetime
- 1976-07-26 GB GB31120/76A patent/GB1552321A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2319246A1 (fr) | 1977-02-18 |
| DE2633383A1 (de) | 1977-02-17 |
| GB1552321A (en) | 1979-09-12 |
| US4058777A (en) | 1977-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |