A speech compression system capable of encoding a speech signal into a bitstream for subsequent decoding to generate synthesized speech is disclosed. The bitstream comprises a type component and a gain component. The type component is representative of a type classification of a frame of speech signal...http://www.google.de/patents/US6961698?utm_source=gb-gplus-sharePatent US6961698 - Multi-mode bitstream transmission protocol of encoded voice signals with embeded characteristics
