专利名称：SYSTEMS AND METHODS TO FREQUENCY
SHIFT UNWANTED SIGNAL COMPONENTS
发明人：Timo Gossmann,Andreas Holm申请号：US13568214申请日：20120807
公开号：US20140044214A1公开日：20140213
专利附图：
摘要：A transmission circuit includes a shift circuit, a second shift circuit, and amodulation circuit. The shift circuit is configured to select a shift amount according toshift 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 selectivelyintroduce the shift amount in a second direction into local oscillator signals. Themodulation circuit is configured to modulate the shifted baseband signals onto theshifted local oscillator signals to generate a composite modulated output signal.Unwanted components of the output signal are shifted away from original or specifiedlimits. Wanted components of the output signal are unshifted.
申请人：Timo Gossmann,Andreas Holm
地址：Neubiberg DE,Vaterstetten DE
国籍：DE,DE
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