He discovered a way of interpreting quantum states as Shannon's noiseless coding theorem, and it helped to start the field known as quantum information theory.
2.
The method was the first of its type, The technique was used to prove Shannon's noiseless coding theorem in his 1948 article " A Mathematical Theory of Communication ", and is therefore a centerpiece of the information age.
3.
In information theory, "'Shannon's source coding theorem "'( or "'noiseless coding theorem "') establishes the limits to possible data compression, and the operational meaning of the Shannon entropy.
4.
While there were some papers from before that time, this collection documented an entire variety of finished, working audio coders, nearly all of them using perceptual ( i . e . masking ) techniques and some kind of frequency analysis and back-end noiseless coding.