Patent ID: 8121713
Filing Date: 2012-02-21
Classification: G06F,G11B

Abstract:
1. An electronic apparatus having a CPU for controlling each portion of the apparatus, the apparatus comprising: a storage unit that stores firmware for operating the CPU; an input terminal complying with a digital audio interface standard for receiving a digital audio signal; a processing unit that performs a predetermined process on the digital audio signal received by the input terminal; an extracting unit that extracts data located at predetermined timings in one frame of the digital audio signal received by the input terminal, and outputs the extracted data as extracted firmware data; and a rewriting unit that analyzes the extracted form data and rewrites the firmware in the storage unit based on a result of the analysis and the extracted firmware data, wherein the CPU serves at least as the extracting unit, wherein the one frame has an effective data length of N segments, and wherein the predetermined timings are located in sampling points set in at least one of the N segments.