发明名称 |
Dynamic quadrature clock correction for a phase rotator system |
摘要 |
A system and method for closed loop clock correction includes adjusting two or more input signals comprising at least one in-phase clock and one quadrature clock, and applying adjusted quadrature clock signals to a device capable of generating a 4-quadrant interpolated output clock phase. An interpolated output clock phase is delayed to form a clock for a measurement device. Two or more adjusted input signals are measured on a measurement device over a range of interpolated output clock phases. Errors are determined on the in-phase clock and the quadrature clock using sampled information from the measurement device. The in-phase clock and the quadrature clock are adapted using determined error information. |
申请公布号 |
US8139700(B2) |
申请公布日期 |
2012.03.20 |
申请号 |
US20090492419 |
申请日期 |
2009.06.26 |
申请人 |
BEUKEMA TROY J.;CLEMENTS STEVEN M.;HSU CHUN-MING;KELLY WILLIAM R.;MAY ELIZABETH M.;RYLOV SERGEY V.;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BEUKEMA TROY J.;CLEMENTS STEVEN M.;HSU CHUN-MING;KELLY WILLIAM R.;MAY ELIZABETH M.;RYLOV SERGEY V. |
分类号 |
H04L25/00 |
主分类号 |
H04L25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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