Abstract:
A method and apparatus for detecting and correcting errors in a magnetic recording channel of a mass storage system that combines a Soft Output Viterbi Algorithm SOVA, which has the capability of detecting the reliability of a discrete, equalized signal, and a post processor, which has the capability of detecting specific error events in said discrete, equalized signal, so as to correct error events and to generate an output bit stream.
Abstract:
An integrated electronic circuit includes a plurality of active circuits connected together in cascade. A feedback loop is between an output of a last active circuit and an input of a first active circuit so that the plurality of active devices function as a non-linear device, such as a capacitor. The integrated electronic circuit may be integrated or used in association with a circuit network including other non-linear devices.
Abstract:
A method of storing a data file, particularly in the MPEG format and including a flow of different frames, comprises a protection system for the data file based on a parameter stored in the data file. Advantageously, the storage method comprises selectively protecting the frames by storing parameters that are associated with corresponding different frames whose values are selected to provide a playing quality level requested by an end user. Also, a method is provided for decoding a data file, particularly of the MPEG type and including a flow of different frames, wherein the data file is stored per above.