| 摘要 |
A DIGITAL VIDEO RECORDER OR SIMILAR APPARATUS IMPLEMENTS A METHOD OF CONVERTING AN INPUT DATA STREAM HAVING AN MPEG-2 PROGRAM STREAM (PS) FORMAT INTO AN OUTPUT DATA STREAM HAVING AN MPEG-2 TRANSPORT STREAM (TS) FORMAT.THE INPUT DATA STREAM (PS) INCLUDES DATA OF AT LEAST FIRST AND SECOND ELEMENTARY DATA STREAMS (404,406) FORMED AND MULTIPLEXED IN COMPLIANCE WITH A PS DECODER MODEL.A SCHEDULER (412) WITHIN THE APPARATUS INHIBITS READING OF A FURTHER DATA BLOCK FROM THE INPUT STREAM WHEN, IN THE ABSENCE OF A VACANCY FOR DATA OF AN AUDIO ELEMENTARY STREAM WITHIN A TARGET DECODER MODEL (418), A CLOCK REFERENCE (SCR) OF SAID INPUT DATA STREAM ADVANCES BEYOND A CLOCK REFERENCE OF SAID OUTPUT DATA STREAM BY A PREDETERMINED WAITING THRESHOLD.(FIG 4) |
