Coded digital data e.g. audio data, stream processing method for use over packet switching communication network, involves inserting information relative to detection of missing or erroneous data in location of missing or erroneous data

摘要

The method involves detecting missing or erroneous data in a data stream and inserting information relative to the detection of missing or erroneous data in a series of data formed from the data stream, where the information is inserted in a location of the missing or erroneous data after the erroneous data is detected and is a sequence of data representing a pattern. The data stream is organized into network packets, and one of the packets, which follows a missing network packet or a network packet containing the missing or erroneous data, is selected. Independent claims are also included for the following: (1) a device for processing a coded data stream before decoding the data stream, comprising a missing or erroneous data detection unit (2) an information storage medium for storing information read by a computer or microprocessor, comprising computer program instructions for implementing a method for processing coded data stream (3) a computer program product loaded in a programmable apparatus, comprising a sequence of instructions for implementing a method for processing coded data stream.