Patent ID: 7426595

Claim:
A desktop holder which accommodates a portable terminal, comprising: a first connector having a charge terminal to be connected to an output terminal of an AC adaptor which converts AC voltage of a commercial power source into charging DC voltage and outputs the obtained voltage, a second connector having an external storage medium terminal to be connected to an external storage medium inserted into an external storage medium slot, to enable read and write from/to said external storage medium by operation of said portable terminal, a third connector having a charge terminal connected to said charge terminal of said first connector and an external interface terminal connected to said external storage medium terminal of said second connector, and control means having an interface conversion function of connecting said external storage medium terminal of said second connector and said external interface terminal, and said portable terminal includes a fourth connector having a charge terminal and an external interface terminal to be electrically and physically connected to said third connector, a charging circuit which receives input of said charging DC voltage from said charge terminal of said fourth connector to charge a battery, and control means which controls read and write from/to the external storage medium inserted into the external storage medium slot of said desktop holder to be connected through said external storage medium terminal of said fourth connector, wherein said desktop holder includes a portable terminal side access controller, a card side access controller and a buffer memory, and wherein said portable terminal side access controller sends and receives data and a control signal to/from said portable terminal through the external connection terminal by a procedure according to the external connection and at the time of write to said external storage medium, accumulates, in said buffer memory, data of an internal memory of said portable terminal received from said portable terminal and at the time of read from said external storage medium, transfers the data of said external storage medium accumulated in said buffer memory to said portable terminal, and said card side access controller sends and receives data and a control signal to/from said external storage medium through said external storage medium terminal by a procedure according to the external storage medium interface and at the time of write to said external storage medium, writes data of said internal memory accumulated in said buffer memory into said external storage medium and at the time of read from said external storage medium, accumulates, in said buffer memory, data read from said external storage medium.