| 摘要 |
<p>A power-saving device for a universal serial bus modem (USB Modem) apparatus is disclosed, which comprises: a personal computer and a USB modem apparatus. Accordingly, a power-saving method for a USB Modem apparatus is provided, which comprises: regularly detecting whether a selective suspending state is allowed, if it not being allowed, then processing a received request from an application, and if it being allowed, then sending an instruction for starting a selective suspending state to the USB modem apparatus; after receiving the instruction for starting a selective suspending state, the USB modem apparatus starting the selective suspending state. Thus, the method enables the USB modem apparatus to start the power-saving state at the idle time and recover the working state when receiving a service request.</p> |
