EP 0694234 B1 20000329 - CONTROL SYSTEM FOR PERIODIC DISTURBANCES
Title (en)
CONTROL SYSTEM FOR PERIODIC DISTURBANCES
Title (de)
SYSTEM ZUR REDUKTION VON PERIODISCHEN STÖRUNGEN
Title (fr)
SYSTEME POUR REDUIRE DES PERTURBATIONS PERIODIQUES
Publication
Application
Priority
US 9205229 W 19920625
Abstract (en)
[origin: WO9400930A1] A control system for controlling periodic disturbances employing a delay inverse filter (5) for supplying a signal, in response to a disturbance signal received by a sensor (1), a variable delay circuit (6) which is adjusted such that the delay through the delayed inverse filter and the variable delay is equal to a whole number of cycles of the disturbance signal. The output from said variable delay circuit being supplied to an actuator (9) such that it is combined with said disturbance signal at the sensor.
IPC 1-7
IPC 8 full level
G10K 11/178 (2006.01)
CPC (source: EP US)
G10K 11/17823 (2018.01 - EP US); G10K 11/17853 (2018.01 - EP US); G10K 11/17854 (2018.01 - EP US); G10K 11/17875 (2018.01 - EP US); G10K 11/17883 (2018.01 - EP US); G10K 2210/121 (2013.01 - EP); G10K 2210/3028 (2013.01 - EP); G10K 2210/3032 (2013.01 - EP); G10K 2210/3045 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE
DOCDB simple family (publication)
WO 9400930 A1 19940106; AT E191303 T1 20000415; DE 69230867 D1 20000504; DE 69230867 T2 20001102; EP 0694234 A1 19960131; EP 0694234 A4 19950914; EP 0694234 B1 20000329
DOCDB simple family (application)
US 9205229 W 19920625; AT 92914496 T 19920625; DE 69230867 T 19920625; EP 92914496 A 19920625