发明名称 |
SYSTEMS AND METHODS TO FREQUENCY SHIFT UNWANTED SIGNAL COMPONENTS |
摘要 |
A transmission circuit includes a shift circuit, a second shift circuit, and a modulation circuit. The shift circuit is configured to select a shift amount according to shift parameters and to introduce the shift amount in a first direction into in phase and quadrature phase baseband signals. The second circuit is configured to selectively introduce the shift amount in a second direction into local oscillator signals. The modulation circuit is configured to modulate the shifted baseband signals onto the shifted local oscillator signals to generate a composite modulated output signal. Unwanted components of the output signal are shifted away from original or specified limits. Wanted components of the output signal are unshifted. |
申请公布号 |
US2014044214(A1) |
申请公布日期 |
2014.02.13 |
申请号 |
US201213568214 |
申请日期 |
2012.08.07 |
申请人 |
GOSSMANN TIMO;HOLM ANDREAS;INTEL MOBILE COMMUNICATIONS GMBH |
发明人 |
GOSSMANN TIMO;HOLM ANDREAS |
分类号 |
H04L25/49 |
主分类号 |
H04L25/49 |
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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