A system and method for determining the transmission rate of a data signal at a receiver of a variable rate communications system. A vocoder at a transmitter encodes a frame of data into symbols according to one of a set of discrete data rates. When the data rate is lower than the maximum, each symbol...http://www.google.es/patents/US5872775?utm_source=gb-gplus-sharePatente US5872775 - Method and apparatus for performing rate determination
Method and apparatus for performing rate determination
