Patent ID: 7260037
Filing Date: 2007-08-21
Classification: G11B

Abstract:
1. An information-processing apparatus, which is used for determining whether or not reproduction of data from a recording medium in a real-time manner is possible if said reproduction is carried out by reading out said data recorded on said recording medium and buffering said data read out from said recording medium in a buffer, said information-processing apparatus comprising: graphic-data acquisition means for acquiring graphic data representing a line approximation graphic form approximating a media read line expressing changes in cumulative amount of data read out from said recording medium; requested reproduction rate acquisition means for acquiring a requested reproduction rate as a reproduction rate requested in a process to reproduce said data; computation means for computing a minimum buffer data amount and a minimum reproduction delay time on the basis of said line approximation graphic form represented by said graphic data where said minimum buffer data amount is defined as a lower limit of the amount of data stored in said buffer as data required for reproduction of said stored data in a real-time manner at a requested reproduction rate whereas said minimum reproduction delay time is defined as a lower limit of a reproduction delay time from a start of an operation to read out data from said recording medium to a start of an operation to reproduce said data read out from said buffer; determination means for determining whether or not reproduction of data in a real-time manner at said requested reproduction rate is possible on the basis of said minimum buffer data amount and said minimum reproduction delay time; and graphic-data computation means for finding said graphic data; wherein said graphic-data computation means comprises: