Global Patent Index - EP 0655879 A1

EP 0655879 A1 19950531 - Electrical lighting control.

Title (en)

Electrical lighting control.

Title (de)

Beleuchtungssteuerung.

Title (fr)

Commande d'éclairage.

Publication

EP 0655879 A1 19950531 (EN)

Application

EP 94308716 A 19941125

Priority

GB 9324381 A 19931126

Abstract (en)

There is described a remote control system for electrical appliances, comprising a control transmitter capable of emitting a plurality of differing control signals, and a number of control receivers wherein each control receiver can discriminate between the control signals and responds only to one of the control signals. In a preferred control receiver, a sensing device (1) provides a first output signal dependant on a control signal incident on the sensing device, the first output signal is fed to a plurality of band-pass filters (4,5) each of which is arranged to provide a second output signal when the first output signal has a signal parameter within a respective predetermined range, the second output signal from one of the band-pass filters (4,5) is selected in a selector device (6) and the selected second output signal is compared with a reference signal in a comparator device (8), and a third output signal generated by the comparator device (8) in dependance on the relative values of the second output signal and the reference signal is applied to an integrated circuit current control element (9,11). <IMAGE>

IPC 1-7

H05B 37/02; G08C 23/04

IPC 8 full level

G08C 23/04 (2006.01); H05B 37/02 (2006.01); H05B 39/08 (2006.01)

CPC (source: EP)

G08C 23/04 (2013.01); H05B 39/088 (2013.01); H05B 47/175 (2020.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IE IT LI LU NL PT SE

DOCDB simple family (publication)

EP 0655879 A1 19950531; GB 2284287 A 19950531; GB 2284287 B 19980304; GB 9324381 D0 19940112

DOCDB simple family (application)

EP 94308716 A 19941125; GB 9324381 A 19931126