发明名称 |
Method and system for balancing an equalizer at a receiver |
摘要 |
A configurable analog equalizer is set to a first high-pass frequency response that is intentionally too moderate to compensate for a low-pass frequency response of a physical link coupling a transmitter and a receiver. A Feed Forward Equalizer (FFE) is activated at the receiver; the FFE includes a set of coefficients having a minimum configuration of a cursor coefficient and a first pre-cursor coefficient. A Decision Feedback Equalizer (DFE) is activated at the receiver; the DFE includes a set of coefficients having a minimum configuration of a first post-cursor coefficient. The configurable analog equalizer is then set to a high-pass frequency response that is more intense than the first high-pass frequency response, until the first post-cursor coefficient of the DFE substantially equals an absolute value of a quotient obtained by dividing the first pre-cursor coefficient of the FFE by the cursor coefficient of the FFE. |
申请公布号 |
US8867603(B1) |
申请公布日期 |
2014.10.21 |
申请号 |
US201314018521 |
申请日期 |
2013.09.05 |
申请人 |
Valens Semiconductor Ltd. |
发明人 |
Lida Eyran;Cohen Gaby Gur;Salamon Aviv |
分类号 |
H03H7/30;H04L27/01 |
主分类号 |
H03H7/30 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
setting, at a receiver, a configurable analog equalizer to a first high-pass frequency response that is too moderate to compensate for a low-pass frequency response of a physical link coupling a transmitter and the receiver; activating, at the receiver, a Feed Forward Equalizer (FFE) comprising a set of coefficients having a minimum configuration of a cursor coefficient and a first pre-cursor coefficient; activating, at the receiver, a Decision Feedback Equalizer (DFE) comprising a set of coefficients having a minimum configuration of a first post-cursor coefficient; and setting the configurable analog equalizer to a high-pass frequency response that is more intense than the first high-pass frequency response until the first post-cursor coefficient of the DFE substantially equals an absolute value of a quotient obtained by dividing the first pre-cursor coefficient of the FFE by the cursor coefficient of the FFE. |
地址 |
Hod Hasharon IL |