| 摘要 |
PURPOSE:To make a mount part light, to enhance a sense of wearing and to stably receive an infrared ray signal by forming the mount part and a demodulation unit separately, mounting an infrared ray receiving section and a speaker section to the mount section and mounting a battery, a power supply circuit section, a demodulation circuit section and a circuit system including a speaker drive to the demodulation unit. CONSTITUTION:An infrared ray receiving section 42 and a speaker section 41 are mounted to a mount section 40, a battery 54, a power supply circuit section 55, a demodulation circuit section 52, and a circuit system including an amplifier circuit 53 including a speaker drive are mounted to the demodulation unit 50. An ear receiver of the mount section 40 has only to be provided with the speaker section and the infrared ray receiving section and a sense of wearing is attained through small size and light weight configuration. When the ear receiver is mounted, the stable reception is attained without being exposed on a head and disturbed by hair. |
