DC-balanced, transition-controlled, scalable encoding method and apparatus for multi-level signaling
US11146430B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jun 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4908
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an encoding apparatus for multi-level signaling, the encoding apparatus including: a candidate pattern generator (1) generating a set of candidate patterns from input data by using symbol-based inversion; a controller (2) generating a cumulated disparity value that is a result of calculating disparity indicating a degree to which transmission data up to previous transmission deviates from DC balance, storing the cumulated disparity value, and determining a transmission control code by using the cumulated disparity value and a set of disparity values that is a result of calculating disparity indicating a degree to which each of the candidate patterns deviates from DC balance; and a data selector (3) selecting one candidate pattern from the set of the candidate patterns as data to be transmitted, according to the determined transmission control code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.