发明名称 |
Data modem with remote firmware update |
摘要 |
A data modem is provided with a boot ROM having a set of instructions for a programmable processor to perform its basic functions within the modem. Enhancements and firmware updates are downloaded over a telephone line through the modem's inherent communications abilities and stored in a battery backed RAM. This permits firmware updates and enhancements to be implemented remotely without need for replacement of ROM or opening of the modem housing.
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申请公布号 |
US5268928(A) |
申请公布日期 |
1993.12.07 |
申请号 |
US19910776969 |
申请日期 |
1991.10.15 |
申请人 |
RACAL-DATACOM, INC. |
发明人 |
HERH, TING;SHE, LUNGSHAN;HIDALGO, ADOLFO J. |
分类号 |
G06F9/445;H04M11/06;(IPC1-7):H04L5/16;H04B1/38 |
主分类号 |
G06F9/445 |
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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