发明申请
US20080093532A1 Memory card having an information display function using an external light source
审中-公开
具有使用外部光源的信息显示功能的存储卡
- 专利标题： Memory card having an information display function using an external light source
- 专利标题（中）： 具有使用外部光源的信息显示功能的存储卡
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申请号： US11798409申请日： 2007-05-14
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公开(公告)号： US20080093532A1公开(公告)日： 2008-04-24
- 发明人: Kwang-Chol Choe
- 申请人： Kwang-Chol Choe
- 优先权： KR10-2006-0103209 20061024
- 主分类号： G11C99/00
- IPC分类号： G11C99/00 ; H01J40/14
摘要：
A memory card including a first memory responsible for the main memory of the memory card, a memory control unit adapted to control the operation of the first memory, a photoelectric voltage generating unit adapted to generate a voltage corresponding to light irradiated externally via photoelectric conversion, a display unit having a second memory adapted to store information set in advance and adapted to display the information set in advance, and a display control unit adapted to control the operation of the display unit. The method of displaying information includes generating a voltage corresponding to light irradiated externally via photoelectric conversion and displaying information set in advance via a display unit of the memory card using the voltage by photoelectric conversion.
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