| 发明名称 |
METHOD OF TRANSMITTING AND RECEIVING DATA, CORRESPONDING SYSTEM AND RECEIVER |
| 摘要 |
<p>A method and apparatus for transmitting and receiving data, wherein a narrow band data signal is transmitted at an unknown frequency within a known range of frequencies and received, and, at the receiver, the range of frequencies is divided into plural frequency bands each of width less than the uncertainty in the transmission frequency of the data signal, with the presence of said data signal detected in at least one of said frequency bands and thereupon demodulated.</p> |
| 申请公布号 |
CZ9803740(A3) |
申请公布日期 |
1999.08.11 |
| 申请号 |
CZ19980003740 |
申请日期 |
1997.05.28 |
| 申请人 |
TRACKER NETWORK (UK) LIMITED |
发明人 |
IRVING CLIVE RUSSELL;SPREADBURY DAVID JOHN;SMITHERS COLIN RICHARD;MACE TIMOTHY CHARLES |
| 分类号 |
H04B1/26;G01S1/04;H04B1/38;(IPC1-7):H04B1/26 |
主分类号 |
H04B1/26 |
| 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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