发明名称 |
Data encryption integrated circuit with on-board dual-use memory |
摘要 |
An interface chip for a peripheral module connectable to and for use with a host computer is provided which utilizes an static Random access memory (SRAM) within the interface chip for both encryption of data packets and temporary storage of Card Information Structure (CIS) information. The CIS information is stored in the SRAM only during the power-up phase of operation, when encryption of data packets is not necessary and thus the memory is not being utilized for that purpose. This precludes the need for a separate SRAM IC, thus saving space on the card.
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申请公布号 |
US6694430(B1) |
申请公布日期 |
2004.02.17 |
申请号 |
US19990264130 |
申请日期 |
1999.03.05 |
申请人 |
SYMBOL TECHNOLOGIES, INC. |
发明人 |
ZEGELIN CHRIS;VESUNA SAROSH |
分类号 |
G06F21/00;(IPC1-7):G06F11/30 |
主分类号 |
G06F21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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