发明名称 |
Cordless telephone containing a protocol converting circuit to connect to digital exchanges having different protocols |
摘要 |
There is provided a cordless telephone which can be connected to any one of digital exchanges of different protocols. A main unit of the cordless telephone is provided with a memory for storing a table for collating control data (first control data) defined by the protocol of a digital exchange to be connected and control data (second control data) inherent to the cordless telephone. The main unit also includes a protocol converting circuit 4 for conversion between the first control data and the second control data. If the cordless telephone is to be connected to another digital exchange structured in a different protocol, a protocol circuit 4 corresponding to the protocol of the digital exchange is used. Transfer of conversation between the cordless telephone and a fixed telephone can also be realized by providing a data distributing and combining circuit.
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申请公布号 |
US6125277(A) |
申请公布日期 |
2000.09.26 |
申请号 |
US19970906592 |
申请日期 |
1997.08.05 |
申请人 |
UNIDEN CORPORATION |
发明人 |
TANAKA, KIYOSHI |
分类号 |
H04M1/00;H04L12/56;H04M1/253;H04M1/725;H04Q11/04;H04W4/18;H04W24/04;(IPC1-7):H04L12/66;H04J3/00;H04Q7/24 |
主分类号 |
H04M1/00 |
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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