Patent ID: 9578410
Date: 2017-02-21
CPC Classifications: H04R

Claim:
1. A sound reproduction device comprising: a left channel housing unit that accommodates at least a left channel driver unit outputting a left channel sound, a left channel microphone recording an external sound, and a left channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the left channel microphone; and a right channel housing unit that accommodates at least a right channel driver unit outputting a right channel sound, a right channel microphone recording an external sound, and a right channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the right channel microphone, wherein the left channel micro-computer and the right channel micro-computer are configured to communicate data with each other, wherein a left channel battery for power of the left channel micro-computer is accommodated in the left channel housing unit and a right channel battery for power of the right channel micro-computer is accommodated in the right channel housing unit, and wherein one of the left channel micro-computer or the right channel micro-computer is a master computer, and wherein the master computer is configured to be notified a remaining battery level of the other micro-computer when there is a start instruction, the master computer is configured to perform control so that the left channel micro-computer and the right channel micro-computer are in an ON state based on a determination result of whether remaining levels of the left channel battery and the right channel battery meet or exceed a first level.