Title:
DEVICE FOR OPERATING PASSIVE INFRARED SENSORS
Document Type and Number:
WIPO Patent Application WO/2015/032373
Kind Code:
A3
Abstract:
The invention relates to a device for operating a passive infrared detector (PIR). The passive infrared detector (PIR) is discharged by means of a discharging network (RG) during charging and preferably not during the measurement. The discharging network (RG) and the infrared detector (PIR) are connected to an analog-to-digital converter (ADC), which converts the signal of the infrared detector into a digital signal on the output bus T at least at times. The output (T) of the analog-to-digital converter (ADC) is connected to a subsequent digital filter (DF). The bus bandwidth of the output (Out) of the digital filter (DF) is typically greater than the bus bandwidth of the output (T) of the analog-to-digital converter (ADC).
Inventors:
SUNTKEN ARTUR (ZA)
Application Number:
PCT/DE2013/000624
Publication Date:
June 18, 2015
Filing Date:
October 21, 2013
Export Citation:
Assignee:
ELMOS SEMICONDUCTOR AG (DE)
International Classes:
A23L7/25; G01J1/46; G08B13/191; H03F3/45; H03F3/70; H03M3/00
Domestic Patent References:
| WO2007057179A2 | 2007-05-24 | |||
| WO2004090570A2 | 2004-10-21 |
Foreign References:
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Other References:
"X9313 Digitally-Controlled (XDCP) Potentiometer", INTERNET CITATION, 8 November 1999 (1999-11-08), XP002233019, Retrieved from the Internet [retrieved on 20030227]
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