Multiplexing an additional bit stream with a primary bit stream
US6624763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Sep 17, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2007/047
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Multiplexing an additional bit stream with a primary bit stream, where the primary bit stream is encoded into an xB/yB encoded bit stream, involves selecting yB code-words to convey the additional bit stream. Each xB word is represented by one yB code-word from a corresponding group of yB code-words, with each group of yB code-words including at least one yB code-word belonging to a category of code-words that tends to exhibit positive DC balance and at least one yB code-word belonging to a category that tends to exhibit negative DC balance. Bits of the additional bit stream are multiplexed with the primary bit stream by selecting code-words from one of the two categories to convey 1's and from the other category to convey 0's. Code-words that are not selected to convey bits of the additional bit stream are selected to balance the running disparity of the encoded bit stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.