| 20110302478 | POWER AND PIN EFFICIENT CHIP-TO-CHIP COMMUNICATIONS WITH COMMON-MODE REJECTION AND SSO RESILIENCE - In bus communications methods and apparatus, a first set of physical signals representing the information to be conveyed over the bus is provided, and mapped to a codeword of a spherical code, wherein a codeword is representable as a vector of a plurality of components and the bus uses at least as many signal lines as components of the vector that are used, mapping the codeword to a second set of physical signals, wherein components of the second set of physical signals can have values from a set of component values having at least three distinct values for at least one component, and providing the second set of physical signals for transmission over the data bus in a physical form. | 12-08-2011 |