SOFTWARE UPDATING SYSTEM, ELECTRONIC DEVICES, AND SOFTWARE UPDATING METHOD.

摘要

Updating of software is made to be quick and easy, even for electronic devices that do not have a broadcasting-receiving function or a network-connecting function, in a system in which multiple electronic devices are connected via a communication interface such as HDMI. A software updating system has a recorder (1) and an AV amplifier (2) connected via an HDMI. The recorder (1) is provided with a tuner (11) that obtains update data for updating the software of the AV amplifier (2), and an HDMI transmission unit (19) that transmits the obtained update data to the AV amplifier (2), via an audio transmission line of the HDMI standard. The AV amplifier (2) is provided with a controller (21) that updates the software of the AV amplifier (2) with the update data transmitted from the recorder (1).