公开(公告)号：JPH10308927A

公开(公告)日：1998-11-17

申请号：JP33850497

申请日：1997-12-09

Applicant: ST MICROELECTRON INC

Inventor： MCDADE DARRYN D ,  OWEN JEFFERSON E

IPC: G06F1/12 ,  G06F1/08 ,  G06T1/00 ,  G11B20/00 ,  G11B27/10 ,  G11B27/30 ,  H04N5/04 ,  H04N5/765 ,  H04N5/92 ,  H04N7/26 ,  H04N7/24

Abstract: PROBLEM TO BE SOLVED: To easily render audio visual stream from DVDCD-ROM with a personal computer, to simplify the synchronization of an audio visual stream and to reduce cost, by giving a software clock operating at a specified software- generated frequency. SOLUTION: At the time of determining a proper time for rendering the audio visual stream, a software clock 124 executed on a thread different from a DVD player 122 is used. The clock asynchronously operates with the DVD player 122 and, it is scheduled against CPU 104 apart from the DVD player 122. The software clock 124 is a counter operating at 27 MHz based on the time counter 126 of CPU 104. Audio decoders 112 and 114 are made by hardware circuits based on conventional technology.