(19)
(11) EP 0 453 957 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.04.1992 Bulletin 1992/15

(43) Date of publication A2:
30.10.1991 Bulletin 1991/44

(21) Application number: 91106197.6

(22) Date of filing: 18.04.1991
(51) International Patent Classification (IPC)5: G08C 25/00, G08B 29/18
(84) Designated Contracting States:
DE ES FR GB IT NL SE

(30) Priority: 20.04.1990 FI 902009

(71) Applicant: Nokia Consumer Electronics Ltd.
FIN-20321 Turku (FI)

(72) Inventor:
  • Heikkinen, Ari
    SF-24260 Salo (FI)

(74) Representative: Weitzel, Wolfgang, Dr.-Ing. 
Friedenstrasse 10
89522 Heidenheim
89522 Heidenheim (DE)


(56) References cited: : 
   
       


    (54) Remote-control home electronics device


    (57) The invention relates to a remote-controlled home electronics device (6) equipped with a monitoring circuit (3, 4) for the condition of the battery of the remote-control device (1). As the battery state is thus monitored by the receiving end, the extra load to the battery caused by the monitoring process is avoided. The transmitting circuit of the remote-control device (1) is designed so that the signal form, e.g. the durations and/or the spaces of the transmitted control pulses will essentially change when the battery is weakening.






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