发明名称 |
Transmitter, receiver, communication system, and communication method employing spread spectrum communication technique |
摘要 |
Transmission mode selection is enabled, so communication reliability, transmission speed, and equipment utilization efficiency are all high. A first transmission system whereby spectrum spreading is accomplished with a spread code 1 and data is transmitted, and a second transmission system whereby data is transmitted with a spread code 2, are provided. In high-reliability transmission mode, identical data from a data buffer is transmitted through both the first and second transmission systems to achieve space diversity. In high-speed mode, data divided by a data division circuit is transmitted simultaneously through the first and second transmission systems, making possible efficient data transfer. Control information insertion circuits append transmission mode data to the transmitted data.
|
申请公布号 |
US5859875(A) |
申请公布日期 |
1999.01.12 |
申请号 |
US19970789237 |
申请日期 |
1997.01.28 |
申请人 |
UNIDEN CORPORATION |
发明人 |
KATO, HIDEKI;YAMAZAKI, SHINICHI;UGAWA, HIDEAKI;SEKI, KAZUHIKO |
分类号 |
H04B1/707;H04B7/02;H04B7/04;H04B7/06;H04L1/08;(IPC1-7):H04B7/02 |
主分类号 |
H04B1/707 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|