SOFTWARE UPDATING SYSTEM, DISPLAY UNIT AND SOFTWARE UPDATING METHOD

摘要

In a system where a plurality of electronic devices are connected via digital audio transmission lines based on the S/PDIF standard or the like, quick and easy update of software is made possible even if the electronic devices are not provided with a broadcast reception function, a network connection function and the like. A TV (1) is connected to an AV amplifier (2) via an S/PDIF line (3). The TV (1) is provided with: a tuner (11) that acquires update data used for updating software in the AV amplifier (2); and an S/PDIF terminal (19) that transmits the thus acquired update data to the AV amplifier (2) via the S/PDIF line (3). The AV amplifier (2) is provided with a controller (21) that updates the software in the AV amplifier (2) with the update data transmitted by the TV (1).