Invention Grant
- Patent Title: System and method for pre and post-tap zeroing
- Patent Title (中): 前置和后置调零的系统和方法
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Application No.: US12472422Application Date: 2009-05-27
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Publication No.: US08228975B2Publication Date: 2012-07-24
- Inventor: Jay Quirk
- Applicant: Jay Quirk
- Applicant Address: US CA San Diego
- Assignee: Applied Micro Circuits Corporation
- Current Assignee: Applied Micro Circuits Corporation
- Current Assignee Address: US CA San Diego
- Agency: Law Office of Gerald Maliszewski
- Agent Gerald Maliszewski
- Main IPC: H03H7/30
- IPC: H03H7/30 ; H03H7/40 ; H03K5/159

Abstract:
A system and method are provided for zeroing pre and post-tap settings in a link partner using a plurality of voltage gain taps. The method provides a link partner (LP) transmitter. A network-connected local device (LD) selects an LP pre-tap or post-tap. The LD also chooses a zero gain setting for the selected LP tap. In a first iteration, the LD directs the LP to decrease the difference between the selected tap gain setting and the zero setting by 1 step. If a limit signal is not received by the LD, the LP is directed to maximally increase the center tap gain setting until a limit signal is received. The iterations are continued until a limit signal is returned in response to the LD directing the LP to decrease the difference between the selected tap gain setting and the zero setting.
Public/Granted literature
- US20100303142A1 System and Method for Pre and Post-Tap Zeroing Public/Granted day:2010-12-02
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