Patent ID: 6467016
Filing Date: 2002-10-15
Classification: G11C

Abstract:
A digital data recording apparatus comprising:a digital encoding compression means for converting analog information which progresses in a time series manner into digital encoding compressed data; an empty area detection means for detecting an unrecorded empty area of a non-volatile memory card which records in predetermined units of blocks the digital encoding compressed data converted by the digital encoding compression means; a storage means for storing in advance information on an empty area of the non-volatile memory card detected by the empty area detection means; and a recording control means for executing control to record the digital encoding compressed data on the empty area of the non-volatile memory card on the basis of the information on the empty area stored in the storage means, and generating recording data containing management data on the digital encoding compressed data, wherein the empty area detection means searches through recording areas of the non-volatile memory card from a leading location to a terminal location and stores detected empty area information by continuously pushing the detected empty area information onto a stack of the storage means in search order, the recording control means executing control to start recording from a recording area which corresponds to final empty area information stored on the stack of the storage means, when the recording control means is to record new digital encoding compressed data on the non-volatile memory card.