专利名称：METHOD AND APPARATUS FOR ADJUSTING
THE PHASE OF A RECEIVED SIGNAL
发明人：SIMIC, Emilija, M.,YOUNIS, Saed, G.,FILIPOVIC,
Daniel, F.
申请号：EP01990914.2申请日：20011105公开号：EP1340349A2公开日：20030903
摘要：Techniques to rotate the phase of a received signal to compensate for phasechange or discontinuity introduced by circuit elements located directly in the receivesignal path. One or more control signals are received, with each control signal beingprovided to adjust a particular characteristic of one or more circuit elements associatedwith the receive signal path. A phase rotation corresponding to an operating statedefined by the control signals is then determined, and the phase of the received signal isrotated by an amount related to the determined phase rotation. In some designs, thephase rotation is performed on digitized inphase Iand quadrature Qsamples to generatephase rotated Iand Qsamples. The phase rotation can be performed by a complexmultiply (after DC offset compensation) and, for ease of implementation, can beperformed digitally in discrete increments (e.g., 90° increments).
申请人：QUALCOMM INCORPORATED
地址：5775 Morehouse Drive San Diego, CA 92121-1714 US
国籍：US
代理机构：Walsh, Michael Joseph
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