Patent ID: 7974163
Filing Date: 2011-07-05
Classification: G11B

Abstract:
1. An optical disk device comprising: read means which reads, from an optical disk, audio and video data and a first address of a sector currently being read, the optical disk containing audio and video data recorded at a variable bit rate for each sector and having storage positions of the sectors specified by addresses; a buffer memory which sequentially stores the audio and video data read by the read means; replay means which sequentially reads out and decodes the audio and video data stored in the buffer memory, and replays the audio and video data; actuation means which receives a command for special replay which differs in replay speed from standard replay by the replay means and a designation of replay speed for the special replay; and control means which, when the command for the special replay is issued by the actuation means during standard replay, the control means calculates a second address of the sector currently being decoded by the replay means, based upon the first address and upon the amount of data stored in the buffer memory; wherein the control means: