Decoder, signal processing system, and decoding method
OwnerRintaro Takeya, Michihiro Matsumotoinventors
Life of this patent
Estimating the term…
Abstract
A storage section is provided for storing a plurality of pieces of first code data. Further, an estimation section is provided for, when first code data used in decoding exists in a current frame to be decoded or the storage section, outputting the first code data, and when not, estimating first code data corresponding to the current frame to be decoded from one or more pieces of past or future first code data stored in the storage section and earlier or later than the current frame to be decoded, and outputting the estimated first code data.
Claims5
A decoder for decoding encoded data having a structure including two kinds of data, i.e., first code data appearing every time every several frames and second code data certainly appearing every frame, and arranged to be decoded based on the two kinds of data, comprising:
- a storage section for storing a plurality of pieces of the first code data;
- an estimation section for, when the first code data corresponding to a current frame to be decoded exists in the current frame to be decoded or in the storage section, outputting the first code data, and when not, estimating first code data corresponding to the current frame to be decoded from one or more pieces of past or future first code data stored in the storage section and earlier or later than the current frame to be decoded, and outputting the estimated first code data;
- and
- a construction section for constructing decoded data based on first code data output by the estimation section and second code data included in the current frame to be decoded.
A method for decoding encoded data having a structure including two kinds of data, i.e., first code data appearing every time every several frames and second code data certainly appearing every frame, and arranged to be decoded based on the two kinds of data, comprising:
- a storage step of storing a plurality of pieces of the first code data into a storage section;
- an estimation step of, when the first code data corresponding to a current frame to be decoded exists in the current frame to be decoded or in the storage section, outputting the first code data, and when not, estimating first code data corresponding to the current frame to be decoded from one or more pieces of past or future first code data stored in the storage section and earlier or later than the current frame to be decoded, and outputting the estimated first code data;
- and
- a construction step of constructing decoded data based on first code data output by the estimation section and second code data included in the current frame to be decoded.
Dependencies are inferred from the claim text.