| 摘要 |
PURPOSE:To prevent the transfer of a subblock of an ineffective data onto a transmission line in case the data are transferred among plural devices through a transmission line, by displaying the subblock of an effective data at a certain region of the block of the transferred data. CONSTITUTION:A central processor 1 gives an indication to each device to transfer a PIX (picture signal) to an STO interface (SIU) 2 via a route of a magnetic disk controller and a unit (DKC/DKU) 6-PDCH (magnetic disk channel device for picture signal) 5-switch 4-picture signal buffer device 3. The RCT (final display) of the first block is all ''0'', and accordingly the device 3 divides the PIX into subblocks (SB) for each 510B and transmits these blocks in 8 times to the SIU2 side. Then the device 3 receives the 2nd block from the DKU6. In this case, the 2nd bit (b1) of the RTC byte is ''1''. Thus the LKB of the 10th SB to be transferred to the SIU2 is set at 1, and an ineffective SB is decided to the data at and after the LBK. Then the device 3 disuses the rest data and does not transfer them. |
