A source-controlled Variable bit-rate Multi-mode WideBand (VMR-WB) codec, having a mode of operation that is interoperable with the Adaptive Multi-Rate wideband (AMR-WB) codec, the codec comprising: at least one Interoperable full-rate (I-FR) mode, having a first bit allocation structure based on one...http://www.google.com.tw/patents/US20050267746?utm_source=gb-gplus-share專利 US20050267746 - Method for interoperation between adaptive multi-rate wideband (AMR-WB) and multi-mode variable bit-rate wideband (VMR-WB) codecs
