Dynamic bus inversion method and system
US7869525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2006 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Oct 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0008
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A dynamic bus inversion (DBI) method and system are described. In various embodiments, a transmitter transmits data over a multi-bit high-speed bus to a receiver. In an embodiment, the transmitter determines whether to invert the bus based on the number of data bits that will be transitioning to a new value. If it is determined that the bus is to be inverted, the transmitter encodes a DBI signal on a shared line of the bus. In an embodiment, the shared line is used for different purposes at different times, obviating the need for a dedicated line or pin for the encoded DBI signal. The receiver receives and decodes the DBI signal and, in response, appropriately decodes the received data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.