发明名称 |
Cellular based communications systems and method of using same |
摘要 |
An apparatus and method for transmitting serial digital data across wireless modems is disclosed. In one embodiment, data is collected by a remote monitoring device and transmitted to a first Cellular Digital Packet Data ("CDPD") modem via one or more RS232 interfaces. The applications program in the first CDPD modem transmits a signal to a second CDPD modem initiating communications. The applications program in the second CDPD modem returns a signal, indicating the status of the interface. Data transmission is initiated when the status of both interfaces is established.
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申请公布号 |
US6628705(B1) |
申请公布日期 |
2003.09.30 |
申请号 |
US19970947580 |
申请日期 |
1997.10.09 |
申请人 |
MCI COMMUNICATIONS CORPORATION |
发明人 |
KURIYAN GEORGE |
分类号 |
H04L12/28;H04L12/56;H04W76/02;(IPC1-7):H04B1/38;H04L5/16 |
主分类号 |
H04L12/28 |
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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