Patent ID: 8155351
Filing Date: 2012-04-10
Classification: H04R

Abstract:
1. A sound signal generator comprising: a sound signal output means for outputting a sound signal to a command-driven amplifier that drives a speaker under control of a control command by using the sound signal; a first counter control means for causing a predetermined change in a content of a problem-detecting first counter in a non-volatile storage medium and for storing a counter value of the problem-detecting first counter in the non-volatile storage medium; a control command sending means for sending the control command to the command-driven amplifier after the predetermined change in the content of the problem-detecting first counter is caused by the first counter control means; and a second counter control means for causing a predetermined change in a content of a problem-detecting second counter in the non-volatile storage medium and for storing a counter value of the problem-detecting second counter in the non-volatile storage medium after the control command is sent to the command-driven amplifier by the control command sending means, wherein the counter values of the problem-detecting first counter and the problem-detecting second counter change in a corresponding manner as long as the control command is sent in a normal manner.