Patent ID: 7925364
Filing Date: 2011-04-12
Classification: G10H,G11B

Abstract:
1. An audio reproduction device comprising: a recording medium for recording compressed audio data; decoding means for converting the compressed audio data to real-time digital sampling data; data reading means for reading a compressed audio data frame of the compressed audio data from the recording medium, and generating and reading a fragment of the real-time digital sampling data by means of the decoding means; data storage means for temporarily storing a first fragment of the real-time digital sampling data read by the data reading means; and reproduction means for reproducing, in an order of time, the first fragment of the real-time sampling data stored in the data storage means in one of a forward direction and a backward direction at a variable speed, wherein the data reading means (i) designates a recording position of the compressed audio data frame corresponding to a second fragment, of the real-time digital sampling data, which is disposed at both ends of the first fragment of the real-time digital sampling data, (ii) reads the compressed audio data frame corresponding to the second fragment of the real-time digital sampling data, such that the second fragment of the real-time digital sampling data is supplied to the data storage means, and (iii) continuously reproduces, by means of the reproduction means, a series of the compressed audio data in the forward direction and the backward direction at an arbitrary speed, and wherein the recording medium, which is to be reproduced, temporarily stores a reproduction point, designated by the data reading means, of the compressed audio data corresponding to the first fragment of the real-time digital sampling data, such that the reproduction point is retrievable when the recording medium starts to be subsequently reproduced.