Patent ID: 8614937
Filing Date: 2013-12-24
Classification: G03H,G11B

Abstract:
1. An optical information recording device for angle-multiplexing data for a plurality of pages to record the angle-multiplexed data on the same recording region of a hologram disk, comprising: a signal producing unit configured to sequentially divide input data in a predetermined unit so as to sequentially produce data of respective pages, and configured to perform an inter-page coding process by which said plurality of pages to be recorded on said same recording region are divided into a plurality of page groups in order that pages which are recorded adjacent to each other by being angle-multiplexed do not belong to the same page group, and an inter-page error correction code is separately calculated for each of said page groups and the calculated inter-page error correction code is added thereto; and an optical pickup configured to angle-multiplex the data of said plural pages to which said inter-page coding process has been performed so as to record the angle-multiplexed data on said hologram disk.