IMAGE DISPLAY DEVICE WITH AUTOMATIC TRANSPONDER LIST UPDATE FUNCTION

摘要

A method for operating an image display device, said method comprising a first step of verification during which each transponder in a preloaded transponder list in association with a satellite is successively verified such that a respective transponder's parameters are fed to a demodulator to verify whether signal lock is achievable, if signal lock is achieved, a first step of transponder information retrieval during which presence of network information tables (NIT) at the tuned frequency is checked and if transponder information is retrieved from the network information tables, a first step of transponder list update during which at least one transponder's parameters are compared to existing preloaded transponder parameters and at least one new transponder with new parameters is included in the transponder list in association with the given satellite.