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US20140097958 |
INTEGRATED CIRCUIT TO OPERATE IN AN AREA OF IONIZING RADIATION, AND HAVING AN OUTPUT FOR A RADIATION DOSE-DEPENDENT WAY DAMAGE INFORMATION, AND ALARM INDICATORS AND CORRESPONDING METHOD
An integrated circuit, in particular a microcontroller, for operation in an area with ionizing radiation, has at least one part of a temperature control circuit. The temperature control circuit... |
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US20080111701 |
Smoke detector having camera
A smoke detector simultaneously processes signals from a detector and signals from an image capture unit through using a power frequency carrier device. Thus, an early alarm can be made by the... |
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US20150262464 |
NON-RADIOACTIVE IONIZING SMOKE DETECTORS AND METHODS FOR USE THEREOF
A smoke detector according to various embodiments discussed herein can use a non-radioactive ionization technique to detect the presence of smoke and/or other particulate matter. A non-radioactive... |
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US20090066525 |
Smoke meter and locator
A device which provides a smoke meter and locator. |
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US20100238036 |
Use of optical reflectance proximity detector for nuisance mitigation in smoke alarms
A smoke alarm comprises smoke detection circuitry for detecting smoke and generating a detection signal responsive thereto. Proximity detection circuitry generates a proximity detection signal... |
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US20100085199 |
Dynamic Alarm Sensitivity Adjustment and Auto-Calibrating Smoke Detection
A microprocessor controlled hazardous condition detection system and method containing a sensor package, the sensor package containing sensors exposed to the ambient environment. The system also... |
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US20150170489 |
DETECTOR UNIT AND SENSING CHAMBER THEREFOR
According to one embodiment, a hazard detector may include a back plate and a front casing coupled to the back plate to define a housing having an interior region and an opening through which air... |
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US20150084776 |
INTEGRATED CIRCUITS WITH RADIOACTIVE SOURCE MATERIAL AND RADIATION DETECTION
Radioactive integrated circuit (IC) devices with radioactive material embedded in the substrate of the IC itself, and including logic for “fingerprinting” (that is, determining characteristics... |
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US20080252473 |
Smoke Detector
A smoke detector replaces the americium source of alpha particles with a field emission device using carbon nanotubes as the field emitters, or some other field emitter, in order to provide an... |
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US20130027211 |
SMOKE DETECTOR
The smoke detector comprises a housing provided with one or more openings for the passage of smoke particles into an interior of the housing. A first electrode and a second electrode are disposed... |
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US20150206406 |
SMOKE DETECTOR
A smoke detector includes a drift chamber and an ionization chamber formed by a first electrode and a second electrode. Electric charges are generated by ionization of the air. The drift chamber... |
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US20170061757 |
IONIZATION AIR FILTERS FOR HAZARDOUS PARTICLE DETECTION
An air filtration for detecting hazardous particles includes a housing having an air flow pathway extending therethrough. The housing is configured to receive air flow from an inlet of the housing... |
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US20170046936 |
Smoke Detection Unit With Light-Emitting Diode And Photo-Detector, And With An Led Chip Arranged In The Light-Emitting Diode And With A Photosensor For Determining A Degree Of Aging And/Or A Compensation Value For A Light Current, As Well As A Light-Emitting Diode
An optical smoke detection unit for a danger alarm includes a light-emitting diode (LED) including at least one LED chip in an LED housing and connection contacts contacting the LED chip and... |
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US20170032643 |
HEATABLE SMOKE ALARM
A smoke alarm has a housing with a heating device for heating walls of the housing to a temperature above the dew point. The heating device has at least one heating light emitting diode (LED). The... |
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US20160358441 |
DETECTOR UNIT AND SENSING CHAMBER THEREFOR
According to one embodiment, a hazard detector may include a back plate and a front casing coupled to the back plate to define a housing having an interior region and an opening through which air... |
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US20160133108 |
INTELLIGENT SMOKE SENSOR WITH AUDIO-VIDEO VERIFICATION
A method and system architecture for automation and alarm systems is provided. An intelligent fire detection sensor is provided that provides input data to a gateway device for processing and... |
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US20160098909 |
Differential Current Measurements To Determine Ion Current In The Presence Of Leakage Current
An ion chamber provides a current representative of its characteristics as affected by external conditions, e.g., clean air or smoke. A direct current (DC) voltage is applied to the ion chamber at... |