Patent ID: 6853613
Filing Date: 2005-02-08
Classification: G11B

Abstract:
1. A reproducing apparatus for an optical recording medium having a first recording layer for recording first data and a second recording layer for recording second data, wherein said first and said second recording layers are positioned adjacent to one another and said second data is recorded at a location in said second recording layer in proximity to a location in said first recording layer where first data relevant to said second recording layer is recorded, said reproducing apparatus comprising: readout means for reading said first data derived from a selected audio program and second derived from the same selected audio program from said optical recording medium; reproducing means for generating replay signals based on said first and said second data read from said readout means; and control means for controlling said readout means and said reproducing means, wherein said readout means includes an objective lens for reading one of said first and said second data and said second data is recorded in a range accessible by said objective lens by shifting a focus of said objective lens from a location of said first recording layer where said first data relevant to said second data is recorded to said location of said second layer where said second data is recorded, wherein said control means controls to alternately read said first data recorded in said first recording layer and said second data recorded in said second recording layer, and wherein said reproducing means includes a first buffer memory for holding said first data read and reproduced from said first recording layer by said readout means; a second buffer memory for holding said second data read and reproduced from said second recording layer by said readout means; and synthesis means for synthesizing said first data read from said first buffer memory and said second data read from said second buffer memory.