| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a memory information recording and playback device which has remarkably small thickness and simultaneously and independently records or reproduces two pieces or more of material information. <P>SOLUTION: When a memory cassette 200 is inserted into an insertion slot 110 of the memory information recording and playback device body 100A , and a light transmission window for memory access and a memory access part are made close to each other and the power is supplied to a semiconductor memory and an electric circuit of the memory cassette 200, information is written or read in/from the semiconductor memory in a contactless manner by accessing the memory access part and the electric circuit by an optical signal. Further, another memory cassette 300 is built in the memory information recording and playback device 100A, and a dedicated memory access part writes or reads information in/from the semiconductor memory in a contactless manner. <P>COPYRIGHT: (C)2010,JPO&INPIT |
