CONVENIENT OPERATION KEYBOARD FOR PORTABLE TELEPHONE

摘要

PROBLEM TO BE SOLVED: To provide a convenient operation keyboard being fixed removably to a portable telephone in order to enhance operability of dialing operation.;SOLUTION: The convenient operation keyboard comprising a dial operating section, a speaking section and a receiving section is connected with a portable telephone in order to communicate dial information and speech information in which dial buttons at the dial operating section have a size larger than that of dial buttons of the portable telephone.;COPYRIGHT: (C)2002,JPO