NL7115165A - - Google Patents
Info
- Publication number
- NL7115165A NL7115165A NL7115165A NL7115165A NL7115165A NL 7115165 A NL7115165 A NL 7115165A NL 7115165 A NL7115165 A NL 7115165A NL 7115165 A NL7115165 A NL 7115165A NL 7115165 A NL7115165 A NL 7115165A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire Alarms (AREA)
- Alarm Systems (AREA)
- Fire-Detection Mechanisms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7015288A SE402660B (sv) | 1970-11-12 | 1970-11-12 | Brandalarmanleggning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7115165A true NL7115165A (es) | 1972-05-16 |
Family
ID=20300437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7115165A NL7115165A (es) | 1970-11-12 | 1971-11-03 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3832678A (es) |
| BE (1) | BE775169A (es) |
| CH (1) | CH540539A (es) |
| DE (1) | DE2154537A1 (es) |
| DK (1) | DK129069B (es) |
| FI (1) | FI53762C (es) |
| GB (1) | GB1338690A (es) |
| NL (1) | NL7115165A (es) |
| NO (1) | NO131693C (es) |
| SE (1) | SE402660B (es) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991413A (en) * | 1975-06-23 | 1976-11-09 | Berger Philip H | Constant current detector system |
| DE2638068C3 (de) * | 1976-08-24 | 1986-11-13 | Siemens AG, 1000 Berlin und 8000 München | Brandmeldeanlage mit mehreren über eine Meldeschleife betreibbaren Meldern |
| DE2641489C2 (de) * | 1976-09-15 | 1984-05-30 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur Übertragung von Meßwerten in einem Brandmeldesystem |
| US4110683A (en) * | 1977-07-08 | 1978-08-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Apparatus including a plurality of spaced transformers for locating short circuits in cables |
| US4287515A (en) * | 1979-04-27 | 1981-09-01 | Baker Industries, Inc. | Fire detection system with multiple output signals |
| JPS595955B2 (ja) * | 1979-07-27 | 1984-02-08 | ホーチキ株式会社 | 火災報知機 |
| DE2935335C2 (de) * | 1979-08-31 | 1985-08-08 | Siemens AG, 1000 Berlin und 8000 München | Gleichstrommeldeanlage |
| DE3043357C2 (de) * | 1980-11-17 | 1985-01-17 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und Vorrichtung zur Widerstandsmessung an einer Meldeleitung |
| DK346982A (da) * | 1981-02-06 | 1983-02-07 | Inst For Ind Res & Standards | Metode og apparat til identifikation af placeringen af en tilstandsaendring i en del af et elektrisk kredsloeb |
| JPS58134392A (ja) * | 1982-02-04 | 1983-08-10 | ニツタン株式会社 | 火災報知装置 |
| DE3677339D1 (de) * | 1985-11-26 | 1991-03-07 | Siemens Ag | Gefahrenmeldeanlage. |
| DE3719988A1 (de) * | 1987-06-15 | 1988-12-29 | Total Feuerschutz Gmbh | Einzelidentifikation |
| WO1999053627A1 (en) | 1998-04-10 | 1999-10-21 | Chrimar Systems, Inc. Doing Business As Cms Technologies | System for communicating with electronic equipment on a network |
| US9437093B2 (en) * | 2011-10-06 | 2016-09-06 | Microchip Technology Incorporated | Differential current measurements to determine ION current in the presence of leakage current |
| US9252769B2 (en) | 2011-10-07 | 2016-02-02 | Microchip Technology Incorporated | Microcontroller with optimized ADC controller |
| US9257980B2 (en) | 2011-10-06 | 2016-02-09 | Microchip Technology Incorporated | Measuring capacitance of a capacitive sensor with a microcontroller having digital outputs for driving a guard ring |
| US8847802B2 (en) | 2011-10-06 | 2014-09-30 | Microchip Technology Incorporated | Microcontroller ADC with a variable sample and hold capacitor |
| US9467141B2 (en) | 2011-10-07 | 2016-10-11 | Microchip Technology Incorporated | Measuring capacitance of a capacitive sensor with a microcontroller having an analog output for driving a guard ring |
| US9071264B2 (en) | 2011-10-06 | 2015-06-30 | Microchip Technology Incorporated | Microcontroller with sequencer driven analog-to-digital converter |
| US9176088B2 (en) | 2011-12-14 | 2015-11-03 | Microchip Technology Incorporated | Method and apparatus for detecting smoke in an ion chamber |
| US9189940B2 (en) | 2011-12-14 | 2015-11-17 | Microchip Technology Incorporated | Method and apparatus for detecting smoke in an ion chamber |
| US9207209B2 (en) | 2011-12-14 | 2015-12-08 | Microchip Technology Incorporated | Method and apparatus for detecting smoke in an ion chamber |
| US9823280B2 (en) | 2011-12-21 | 2017-11-21 | Microchip Technology Incorporated | Current sensing with internal ADC capacitor |
| US8884771B2 (en) | 2012-08-01 | 2014-11-11 | Microchip Technology Incorporated | Smoke detection using change in permittivity of capacitor air dielectric |
| CA3006178C (en) | 2018-05-25 | 2021-02-02 | Stephen D. Ainsworth | Fire alarm testing device and method |
| US10210747B1 (en) * | 2018-05-25 | 2019-02-19 | Stephen David Ainsworth | Fire alarm testing device and method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268881A (en) * | 1963-08-01 | 1966-08-23 | Alfred W Vasel | Detection device |
| CH468682A (de) * | 1967-06-26 | 1969-02-15 | Cerberus Ag | Feuermeldeanlage |
| GB1178957A (en) * | 1968-04-29 | 1970-01-28 | Goodwin Alfred George Ive | Improvements in and relating to Electrical Protective Systems |
| US3611362A (en) * | 1969-03-19 | 1971-10-05 | Gen Signal Of Canada Ltd | Alarm sensing and indicating systems |
| US3653025A (en) * | 1969-08-04 | 1972-03-28 | Caswell Equipment Co Inc | Signalling system |
| US3676877A (en) * | 1970-04-18 | 1972-07-11 | Mittan Co Ltd | Fire alarm system with fire zone locator using zener diode voltage monitoring |
| US3716834A (en) * | 1971-10-07 | 1973-02-13 | H Adams | Data transmission system with immunity to circuit faults |
| US3711854A (en) * | 1971-10-19 | 1973-01-16 | Federal Sign And Signal Corp | Parallel alarm circuit having series supervision |
-
1970
- 1970-11-12 SE SE7015288A patent/SE402660B/xx unknown
-
1971
- 1971-11-03 NL NL7115165A patent/NL7115165A/xx not_active Application Discontinuation
- 1971-11-03 DE DE19712154537 patent/DE2154537A1/de not_active Withdrawn
- 1971-11-05 US US00196045A patent/US3832678A/en not_active Expired - Lifetime
- 1971-11-08 CH CH1620671A patent/CH540539A/de not_active IP Right Cessation
- 1971-11-08 GB GB5173171A patent/GB1338690A/en not_active Expired
- 1971-11-10 BE BE775169A patent/BE775169A/xx unknown
- 1971-11-10 FI FI3212/71A patent/FI53762C/fi active
- 1971-11-10 NO NO4153/71A patent/NO131693C/no unknown
- 1971-11-11 DK DK551671AA patent/DK129069B/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE402660B (sv) | 1978-07-10 |
| NO131693C (es) | 1975-07-09 |
| CH540539A (de) | 1973-08-15 |
| DK129069B (da) | 1974-08-12 |
| GB1338690A (en) | 1973-11-28 |
| NO131693B (es) | 1975-04-01 |
| BE775169A (fr) | 1972-03-01 |
| FI53762C (fi) | 1978-07-10 |
| DE2154537A1 (de) | 1972-05-18 |
| FI53762B (es) | 1978-03-31 |
| US3832678A (en) | 1974-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | A search report has been drawn up | ||
| BV | The patent application has lapsed |