EP 0700557 B1 20000301 - SIGNAL EVALUATION CIRCUIT FOR A MOVEMENT DETECTOR
Title (en)
SIGNAL EVALUATION CIRCUIT FOR A MOVEMENT DETECTOR
Title (de)
SIGNALAUSWERTUNGSSCHALTUNG FÜR EINEN BEWEGUNGSMELDER
Title (fr)
CIRCUIT D'ANALYSE DES SIGNAUX POUR UN CAPTEUR DE MOUVEMENTS
Publication
Application
Priority
- CH 9500058 W 19950316
- CH 88294 A 19940324
Abstract (en)
[origin: US5659316A] PCT No. PCT/CH95/00058 Sec. 371 Date Nov. 15, 1995 Sec. 102(e) Date Nov. 15, 1995 PCT Filed Mar. 16, 1995 PCT Pub. No. WO95/26017 PCT Pub. Date Sep. 28, 1995The motion detector generates a sensor signal (SS) which contains a direct current portion and an alternating current portion. The signal evaluation circuit (3) contains means for filtering out the direct current portion, an analogue-to-digital converter (4) and an amplifier for the alternating current portion of the sensor signal. The analogue-to-digital converter (4) is provided for the direct digitizing of the entire sensor signal (SS) and the means for filtering out the direct current portion are formed by a digital high-pass filter (5) connected downstream of the analogue-to-digital converter.
IPC 1-7
IPC 8 full level
G01J 1/02 (2006.01); G01V 8/12 (2006.01); G08B 13/19 (2006.01); G08B 29/18 (2006.01)
CPC (source: EP US)
G08B 13/19 (2013.01 - EP US); G08B 29/26 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
US 5659316 A 19970819; CA 2161878 A1 19950928; CA 2161878 C 20030916; CH 689071 A5 19980831; CN 1124533 A 19960612; CN 1135510 C 20040121; DE 59507873 D1 20000406; EP 0700557 A1 19960313; EP 0700557 B1 20000301; JP H08511349 A 19961126; WO 9526017 A1 19950928
DOCDB simple family (application)
US 54568595 A 19951115; CA 2161878 A 19950316; CH 88294 A 19940324; CH 9500058 W 19950316; CN 95190212 A 19950316; DE 59507873 T 19950316; EP 95911179 A 19950316; JP 52427395 A 19950316