Patent ID: 7555322

Claim:
A foldable type portable information terminal comprising: an upper unit having a display screen; a lower unit having an operation surface, wherein said upper and lower units are coupled for opening and closing and for pivoting; a detector for detecting variation of relative attitude of said upper unit and said lower unit; an operation mode judgment unit for detecting variation of operation mode of said terminal; a battery remaining capacity detection unit for detecting remaining capacity of a battery of said terminal; an electric field intensity detecting unit for detecting communication condition of said terminal; and an announcing unit for externally announcing whether or not a state of said terminal is adaptable for a desired operation mode when said detector detects said variation of relative attitude of said upper unit and said lower unit and said operation mode judgment unit detects said variation of operation mode of said terminal, wherein said announcing unit performs an external announcement of whether or not said state of said terminal is adaptable for said desired operation mode in accordance with said remaining capacity of said battery detected by said battery remaining capacity detection unit when said detector detects said variation of relative attitude of said upper unit and said lower unit and said operation mode judgment unit detects said variation of operation mode of said terminal to an application program, and wherein said announcing unit also performs an external announcement of whether or not said state of said terminal is adaptable for a desired calling mode in accordance with said communication condition detected by said electric field intensity detecting unit when said detector detects said variation of relative attitude of said upper unit and said lower unit and said operation mode judgment unit detects said variation of operation mode of said terminal to said desired calling mode.