Multiple word data bus inversion
US8581755B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2010 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Oct 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0272
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data encoding scheme for transmission of data from one circuit to another circuit considers the Hamming Weight of combined multiple words to determine whether to invert or not invert an individual word to be transmitted. The multi-word data encoding scheme performs DBI encoding with data inversion conducted based on the total HW in the combined multiple words. The decision to invert or not invert each of the multiple words is made based on the sum of the individual Hamming Weights of each of the words. Such encoding has the advantage that SSO noise is dramatically reduced when the encoded data has a large number of words transmitted from one circuit to another circuit over a wide parallel bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.