Patent ID: 6271827
Filing Date: 2001-08-07
Classification: G09G

Abstract:
A display system comprising:a display memory for storing display data of a first predetermined format;a display apparatus for displaying the display data read from the display memory;a memory control circuit for controlling reading of the display data stored in the display memory and writing of the display data to the display memory, based on a control signal input from a control device externally provided from the display system;an input/output format determination unit for determining whether a format of the display data to be input/output between the control device and the display system is the first predetermined format or a second predetermined format which is different from the first predetermined format;a first format converting circuit for converting the display data of the second predetermined format into the display data of the first predetermined format;a second format converting circuit for converting the display data of the first predetermined format into the display data of the second predetermined format;a first data selector for selecting one of the display data input from the control device and the display data which has been converted by the first converting circuit in accordance with the determination result by the input/output format determination unit and for outputting the selected display data to the display memory; anda second data selector for selecting one of the display data output from the display memory and the display data which has been converted by the second converting circuit in accordance with the determination result by the input/output format determination unit and for outputting the selected display data to the control device.