received is considered to be erased according to a preferred error correction procedure the complete payload flagged as incorrectly received is included in the data stream with the correctly received payloads burst error coding or interleaving can be used to correct the bit errors in the incorrectly received payload the data from the error correction circuitry 180 is stored in a second buffer 182 ready for use the verification circuitry 176 determines whether data is current or not according to two inputs the first input 185 is from a timer 184 which records the time since the last correctly received data packet the time measurement may for example be a measure of the number of successive nak acknowledgements sent to the transmitter 140 or the real time since the last ack was sent to the transmitter 140 the second optional input is a dynamic signal 181 indicating the amount of data in the buffer 182 and or buffer 178 the more data that is stored in the buffer ready for use the longer the currently received data remains current if the buffer is empty the received data is no longer current the verification circuitry according to one embodiment uses an algorithm taking the two inputs as arguments to calculate whether a payload which has been incorrectly received is current or not the response of the verification circuitry 176 is dependent upon whether the incorrectly received payload is calculated as being current or not current incorrectly received data is data where the possibility of still receiving a retransmission of.