发明名称 |
FREQUENCY HOPPING SPREAD SPECTRUM DECODER_______________________ |
摘要 |
The present invention is directed to a frequency hopping spread spectrum transceiver. The transceiver includes a microcontroller; a transmitter having a voltage controlled oscillator, a direct digital synthesizer, and a power amplifier; and a receiver having an amplifier, a mixer, an IF amplifier, a demodulator, and a data slicer. When transmitting, the transmitter communicates a preamble over a predetermined number of preamble channels, and thereafter communicate groups of data bytes that each comprise a subset of the data message over a predetermined sequence of data channels. When receiving, the receiver investigates the predetermined number of preamble channels to search for the preamble and tests the received bits to insure that the preamble and a start frame delimiter have been properly received to synchronize the receiver with the transmitter. |
申请公布号 |
WO2004004136(A3) |
申请公布日期 |
2004.07.01 |
申请号 |
WO2003US20055 |
申请日期 |
2003.06.25 |
申请人 |
ELSTER ELECTRICTY LLC. |
发明人 |
SHUEY, KENNETH, C.;MASON, ROBERT, T., JR.;BRIAN, BRENT, R.;HODGES, EUGENE, W. |
分类号 |
H04B1/713 |
主分类号 |
H04B1/713 |
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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