| 摘要 |
PURPOSE:To perform the conversion of color data so as to easily correct errors without deteriorating the transfer speed by storing once the picture data consisting of a series of mixed R, G and B data into a RAM and reading these data out of the RAM to allocate them to the modulation circuits of three systems. CONSTITUTION:The picture data consisting of the R, G and B data is read out of a RAM 12 and held by a data register 16. Then the R, G and B data are successively selected by an address selector 17 and read out to an output buffer 18. The buffer 18 uses alternately the output lines D1-D3 and D4-D6 and outputs successively and repetitively the R, G and B data. These data are allocated to the modulation circuits 23a-23c of three systems. Thus a series of modulated data are obtained. Thus it is possible to convert the color data so as to easily correct errors without deteriorating the transfer speed. |
