Data recording medium, recording and reproducing s

专利名称：Data recording medium, recording and

reproducing system and residual amountdisplay method

发明人：Toshiharu Kobayashi,Chisato

Kitsukawa,Katsuyuki Koizumi

申请号：US08/991938申请日：19971216公开号：US06160788A公开日：20001212

摘要：A CPU can execute, for example, 4-bit processes, a program for data processeshas been written in an ROM, and an RAM has memory areas for a work area and a userarea of the CPU. Data supplied from the outside through an input terminal and an I/Fcircuit is recorded in a user area in the RAM. The recorded data is read out and suppliedto the outside through an input/output terminal. An LCD displays a size (data residualamount) of an unused area in the RAM by, for example, a bar graph type. The ROM, RAM,I/F circuit, and driver are connected to the CPU by a bus line.

申请人：SONY CORPORATION

代理机构：Frommer Lawrence & Haug, LLP.

代理人：William S. Frommer,Joe H. Shallenburger

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