发明名称 |
I/Q demodulator device with three power detectors and two A/D converters |
摘要 |
<p>The present invention relates to a method and a device for the I/Q demodulation of modulated RF signals. The I/Q demodulator (60) has a first input for the RF signal (61) to be demodulated and a second input for a RF signal (62) originating from a local oscillator (20). The demodulator (60) combines the two RF signals (61,62) to generate three output signals supplied to three power detectors. In a combination unit (70) the three power signals of the power detectors are merged in two signal branches wherein after passing an A/D converting (72) and digital processing unit (73) one signal is the I component and the other one is the Q component of the received modulated RF signal (61). <IMAGE></p> |
申请公布号 |
EP1189338(A1) |
申请公布日期 |
2002.03.20 |
申请号 |
EP20000119506 |
申请日期 |
2000.09.06 |
申请人 |
SONY INTERNATIONAL (EUROPE) GMBH;SONY CORPORATION |
发明人 |
BRANKOVIC, VESELIN;RATNI, MOHAMED;KRUPEZEVIC, DRAGAN;ABE, MASAYOSHI;SASHO, NOBORU |
分类号 |
H04B1/30;H03D1/00;H03D1/22;H03D3/00;H03D9/04;H04L27/22;H04L27/38;(IPC1-7):H03D9/04 |
主分类号 |
H04B1/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|