Patent ID: 7533192
Filing Date: 2009-05-12
Classification: H04N

Abstract:
1. A task scheduling method in case compressed data and non-compressed data are simultaneously transferred between a host system and a data encoding/decoding apparatus, comprising the steps of: transferring a compressed audio/video data from a buffer of the host system to a first external device with a first transfer priority when the compressed audio/video data and a non-compressed audio/video data are simultaneously transferred; transferring the non-compressed audio/video data from the buffer to a second external device with a second transfer priority lower than the first transfer priority when the compressed audio/video data and the non-compressed audio/video data are simultaneously transferred; and determining whether an amount of the compressed audio/video data held in the buffer of the host system after the transfer of the compressed audio/video data from the buffer of the host system to the first external device is completed exceeds a predetermined threshold, wherein, when the amount of the compressed audio/video data exceeds the predetermined threshold, the transfer of the non-compressed audio/video data from the buffer of the host system to the second external device is restricted or stopped.