| 摘要 |
<p>A clock generator (8) generates a system clock hearing frequency varying within a specific range from a predetermined target value. A receiving unit (14) receives a periodic electromagnetic signal from a remote controller (9) including a quartz crystal (13), to stabilize frequency of the system clock by reducing variation in frequency of the system clock from the target value. Alternatively, the quartz crystal may be in a timepiece, or signals from a standard time transmitter may be employed. An independent claim is also included for operation method of hearing aid.</p> |
