Invention Grant
- Patent Title: Channel equalization for multi-level signaling
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Application No.: US16415512Application Date: 2019-05-17
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Publication No.: US10985953B2Publication Date: 2021-04-20
- Inventor: Feng Lin , Timothy M. Hollis
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Holland & Hart LLP
- Main IPC: H04L25/49
- IPC: H04L25/49 ; G11C7/20 ; H04L25/03 ; H04L7/00 ; G11C7/10

Abstract:
A memory interface may include a transmitter that generates multi-level signals made up of symbols that convey multiple bits of data. The transmitter may include a first data path for a first bit (e.g., a least significant bit (LSB)) in a symbol and a second data path for a second bit (e.g., the most significant bit (MSB)) in the symbol. Each path may include a de-emphasis or pre-emphasis buffer circuit that inverts and delays signals received at the de-emphasis or pre-emphasis buffer circuit. The delayed and inverted data signals may control de-emphasis or pre-emphasis drivers that are configured to apply de-emphasis or pre-emphasis to a multi-level signal.
Public/Granted literature
- US20190273640A1 CHANNEL EQUALIZATION FOR MULTI-LEVEL SIGNALING Public/Granted day:2019-09-05
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