Digital RF receiver and method of dynamically adjusting a multicluster memory buffer

摘要

A digital radio receiver system (10) and method are provided for receiving signals from multiple transmission sources (SAT1, SAT2, TERR) and providing dynamic data buffering. The system (10) includes an antenna (12) for receiving signals from multiple sources (SAT1, SAT2, TERR), a tuner (18) for selecting certain frequency signals, and a digital demodulator (20) for demodulating the tuned selected signals. The system (10) also includes a memory buffer (22) having memory locations and capable of storing data clusters. The system (10) further has a controller (30) for controlling the cluster of data stored in the memory buffer (22). The controller (30) selects from at least first and second clusters of data, depending strength of signal of a received buffer source.