Patent ID: 6249640
Filing Date: 2001-06-19
Classification: H04N

Abstract:
A system for rapidly playing back, in a digital video disk (DVD) player, sub-picture units (SPU's) which contain sub-picture information, the system comprising:a comparator for comparing the time of a system time clock (STC) with the execution time of an instruction set, said instruction set configured for providing display control in a sub-picture unit;a forcing mechanism for forcing the display of pixel data (PXD) in said sub-picture unit to suspend operation and proceed to instruction interpretation of an instruction set in a next sub-picture unit if said comparator determines, when said sub-picture units are being rapidly played back and said system time clock is performing a rapid increment operation, that said system time clock has a value greater than an execution time of a next instruction set; anda repeater for continuously repeating instruction interpretation until an execution time of an instruction set coincides with a current time of a system time clock.