Invention Grant
- Patent Title: Optimal data eye for improved Vref margin
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Application No.: US15467775Application Date: 2017-03-23
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Publication No.: US09971975B2Publication Date: 2018-05-15
- Inventor: Venkata N. S. N. Rao , Ravindra Kantamani , Prasad Chalasani
- Applicant: Invecas, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Invecas, Inc.
- Current Assignee: Invecas, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Venture Pacific Law, PC
- Main IPC: G11C7/22
- IPC: G11C7/22 ; G11C11/4076 ; G11C8/18 ; G06N99/00 ; G11C29/02 ; G11C5/06 ; G11C11/4096
Abstract:
An optimized method, system, and apparatus for determining optimal DQS delay for DDR memory interfaces are disclosed. The method performs data eye training in a two dimensional space with time delay value as x-axis and reference voltage (Vref) as y-axis to determine a rectangular data eye within an overall data eye with Vref margin.
Public/Granted literature
- US20170323222A1 Optimal Data Eye for Improved Vref Margin Public/Granted day:2017-11-09
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