发明公开
- 专利标题: A BOUNDED SIGNAL MIXER AND METHOD OF OPERATION
- 专利标题(中): 链接信号混合器和工作程序
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申请号: EP06800928.1申请日: 2006-08-08
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公开(公告)号: EP1934667A2公开(公告)日: 2008-06-25
- 发明人: PESSOA, Lucio F.C. , GAN, Kim-Chyan
- 申请人: Freescale Semiconductor
- 申请人地址: 6501 William Cannon Drive West Austin, TX 78735 US
- 专利权人: Freescale Semiconductor
- 当前专利权人: Freescale Semiconductor
- 当前专利权人地址: 6501 William Cannon Drive West Austin, TX 78735 US
- 代理机构: Ferro, Frodo Nunes
- 优先权: US209157 20050822
- 国际公布: WO2007024468 20070301
- 主分类号: G06F1/02
- IPC分类号: G06F1/02 ; H04B1/20 ; H04B1/00
摘要:
A method and apparatus are provided for mixing a plurality of signals within a predetermined dynamic range without clipping. In the method and apparatus, first (x1) and second (x2) signal samples are added (12) together to obtain a first intermediate result. Then the first signal sample (x1) is multiplied (14) with the second signal sample (x2) to obtain a second intermediate result. In one embodiment, the second intermediate result is subtracted (16) from the first intermediate result to obtain a third intermediate result, and the third intermediate result is discarded (20) if the third intermediate result is less than zero. In another embodiment, the second intermediate result is added (36) to the first intermediate result to obtain the third intermediate result, and the third intermediate result is discarded (40) if the third intermediate result is greater than zero. An output signal sample (M) is provided based on the third intermediate result.
公开/授权文献
- EP1934667B8 A BOUNDED SIGNAL MIXER AND METHOD OF OPERATION 公开/授权日:2016-05-25
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