Portable scanning apparatus

摘要

A portable scanning apparatus comprising a scanner and a feeder. The scanner is connected to a host by a USB line through which the power of the scanner is provided. The scanner includes an application specific integrated circuit (ASIC) and an image sensing module for controlling the scanning apparatus. The image sensing module is used for receiving image signals from the document which are further outputted to the ASIC. The scanner can be selectively combined with a feeder as a sheet-fed scanner or detached from the feeder as a hand-held one. The feeder includes a motor for controlling the rolling wheel of the feeder and battery for supplying the power of the feeder.