发明授权
- 专利标题: Device for correcting a digital estimate of an electric signal
- 专利标题(中): 用于校正电信号的数字估计的装置
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申请号: US11005707申请日: 2004-12-07
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公开(公告)号: US07062159B1公开(公告)日: 2006-06-13
- 发明人: Antonio Borrello , Stefano Saggini , Aldo Novelli , Ignazio Bellomo
- 申请人: Antonio Borrello , Stefano Saggini , Aldo Novelli , Ignazio Bellomo
- 申请人地址: IT Agrate Brianza
- 专利权人: STMicroelectronics S.r.l.
- 当前专利权人: STMicroelectronics S.r.l.
- 当前专利权人地址: IT Agrate Brianza
- 代理机构: Seed IP Law Group PLLC
- 代理商 Lisa K. Jorgenson; Robert Iannucci
- 主分类号: H02P7/06
- IPC分类号: H02P7/06
摘要:
A device for correcting a digital estimate of an electric signal is described. The device includes a comparator that generates a current proportional to the difference between an analog estimate signal, which derives from the digital estimate, and the electric signal. The device also includes a capacitor positioned to be charged by the current, a transistor that discharges the capacitor, and a comparator that compares the voltage at the terminal of the capacitor with a reference voltage. The device also includes a controller that drives the transistor in response to the output signal of the comparator and a logic device that generates a correction digital signal to be added to or subtracted from the digital estimate of the electric signal in correspondence of an ascending or descending waveform of the electric signal.