| 摘要 |
Remote control circuits can operate according to carrier mode or according to flash mode. Integrated circuits for processing the received IR (Infra-Red) flash-mode signals are much more expensive than integrated circuits designed for carrier mode. It is an object of this invention to reduce the costs of circuits which process flash mode signals by using integrated circuits designed for carrier mode operation. According to the invention the processor 4 for the remote control receiver is of the type designed for carrier mode. The input circuit for the said processor 4 is dimensioned in such a way that the duration of the received flash mode pulses is increased. <IMAGE> |
