Patent ID: 8438462
Filing Date: 2013-05-07
Classification: H03M,H04L

Abstract:
1. A method for recovery of lost and/or corrupted data transmitted from a transmitter device to a receiver device, said method comprising the steps of: coding said data by means of an encoder connected to the transmitter device, transmitting said data from the transmitter device to the receiver device via a transmission channel, and decoding said data, by a decoder connected to the receiver device, wherein lost and/or corrupted data is restored during decoding, whereby encoding is performed by using a convolutional code and decoding is performed by solving the system of equations defined by the decoding matrix of the code, whereby a convolutional decoder is used, wherein a window size on which the decoder connected to the receiver device operates is variable so that the window size can be adapted to the erasure rate of the transmission channel and/or to the delay service requirement, and further increasing the window size on which the decoder operates when the packet loss rate rises under bad channel conditions, so that the error correction capability of the decoder is improved, and decreasing the window size on which the decoder operates when the packet loss rate decreases under good channel conditions, so that the transmission delay is minimized.