Systems and methods providing wideband tuners controlling spurious signal placement in the capture bandwidth,申请号EP20100250918-传众专利搜索

Systems and methods providing wideband tuners controlling spurious signal placement in the capture bandwidth

申请公布号：EP2256938(A2)

申请号：EP20100250918

申请日期：2010.05.13

申请公布日期：2010.12.01

申请人：

MICROTUNE, INC.

发明人：POP, MARIUS;DESSERT, DAVID

分类号：H04B1/28;H04B1/10

主分类号：H04B1/28

摘要：Systems and methods which place a spurious signal within a capture bandwidth of a tuner. Placement of the spur is preferably controlled to dispose the spur within a spur placement window, such as may be defined between traffic channels of an input signal. A tuner system operating in accordance with embodiments may be controlled to select a particular input frequency band comprising a plurality of traffic channels for frequency conversion and to determine local oscillator frequencies which result in most relevant spurs being placed outside of the tuner capture bandwidth. The local oscillator frequencies may be shifted to place a relevant spur remaining within the capture bandwidth of the tuner between traffic channels of the plurality of traffic channels. Embodiments operate to determine frequency offset between a transmitter and a tuner to determine the midpoint between channels.