DECODER EXPANSION SYSTEM

摘要

A decoder expansion system (100,110) comprises a common interface card (100), a processor (120), a common interface slot (150) and storage means (130). The common interface card (100) is inserted into a common interface slot of a decoder (not shown) to route received data under control of the processor (120) to one or both of the common interface slot (150) and the storage means (130). The system is capable of manipulating the received data and outputting a signal to the decoder via the common interface card (100) to provide additional functionality to that provided by the decoder.