Scan ring / Scanning equipment

Today with advanced technology, digital electronic products find broad application, the traditional paper-based material is no longer the main media to disseminate informations.however, if we need to put on paper or mind or text into the computer player . We need to type a word for word by hand, which is inefficient .If we use the ring , just gently scan the paper with it, the text will be stored in the ring .And it can be transmits the copy to the computer by wire .