Patent ID: 7047361

Claim:
A data storage device using SDRAM, comprising: a data transmission converting interface, connecting to a server for converting a data transmitted by said server into storable data; a buffer, connecting to said data transmission converting interface for temporarily storing said data converted by said data transmission converting interface; a direct memory storing/retrieving controller, connecting to said buffer; at least one SDRAM, connecting to said direct memory storing/retrieving controller; and a SDRAM controller, connecting to said direct memory storing/retrieving controller for controlling said SDRAM, for enabling said direct memory storing/retrieving controller to move said data temporarily stored in said buffer for storing into said SDRAM, wherein said device is connected to a CCD through said data transmission converting interface, wherein a current signal retrieved by said CCD is converted by said data transmission converting interface into storable data that can be temporarily stored in said buffer, and wherein when said SDRAM controller controls the direct memory storing/retrieving controller again, said direct memory storing/retrieving controller will move said data temporarily stored in the buffer for storing into said SDRAM.