Methods and Systems for Noise Resilient, Pin-Efficient and Low Power Communications with Sparse Signaling Codes

摘要

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 sparse signaling code, wherein a codeword is representable as a vector of a plurality of components, some of which are quiescent components and some of which are non-quiescent components, wherein the number of quiescent components and non-quiescent components meet a sparseness requirement.

主权项

1. A communication system for transmitting a code word from a sparse signaling code comprising:
a communication bus with n independent signal paths for signal transmission; means for generating the code word from the sparse signaling code, wherein the code word is from a set of code words that comprise vector components selected from a set of at least three values such that the resulting code word is balanced; and means for transmitting the code word from the sparse signaling code on the communication bus by actively generating physical signals on the communications bus for each nonquiescent vector component, and passively obtaining physical signals for quiescent vector components on the communications bus.