Patent ID: 9257130
Filing Date: 2016-02-09
CPC Classification: G10L

Claim Text:
1. Decoder apparatus for decoding a data stream comprising a sequence of frames comprising a plurality of respective frames into which time segments of an information signal are coded, respectively, comprising a parser configured to parse the data stream, wherein the parser is configured to, in parsing the data stream, read a first syntax portion and a second syntax portion from a current frame; and a reconstructor configured to reconstruct a current time segment of the information signal associated with the current frame based on information acquired from the current frame by the parsing, using, depending on a first selection, a Time-Domain Aliasing Cancellation transform decoding mode or a time-domain decoding mode, the first selection depending on the first syntax portion, wherein the parser is configured to, in parsing the data stream, perform a first action of expecting the current frame to comprise, and thus reading forward aliasing cancellation data from the current frame or a second action of not-expecting the current frame to comprise, and thus not reading forward aliasing cancellation data from the current frame, wherein the parser is configured to perform a second selection selecting which of the first action and the second action is performed, depending on the second syntax portion, wherein the reconstructor is configured to perform forward aliasing cancellation at a boundary between the current time segment and a previous time segment of a previous frame using the forward aliasing cancellation data, wherein at least one of the parser and the reconstructor is implemented on a microprocessor, a programmable logic device or an electronic circuit.