Irda - communication - ic, an electronic apparatus and externally installed communication device with such an irda - communication - ic and a method for adding an irda - communication function

摘要

Irda - communication - ic (1), the inside of an electronic appliance is provided between the electronic device and an external electronic device an irda - fulfilling communication to can be realized, with:an initially - / output - interface (7, 8) for converting data from the outside the irda - communication - ic (1) have been supplied, in parallel data, the inside of the irda - communication - ic ''s (1) are processed, and for converting of parallel data, which in the irda - communication - ic (1) are output, in data from the irda - communication - ic (1) can be issued;a protocol expensive circuit (2, 3, 4, 13), for converting the parallel data from the initially - / output - interface (7, 8) have been supplied, in an irda - protocol - conformal signal and for converting the irda - protocol conformal signal, which has been introduced from the outside, and to parallel data has been demodulated, and then for feeding of these parallel data to the kind initially - / output - interface (7, 8);a modulation circuit (9) for modulating the irda - protocol conformal signal from the protocol expensive circuit (2, 3, 4, 13) has been supplied to;a demodulation circuit (10) for demodulating..