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US 8,897,616 B2Granted
Apparatus and method for upconverting content data
AssigneeCanon Kabushiki Kaisha
InventorsTetsu Fukuda, Shuntaro Aratani
Life of this patent
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Abstract
A signal processing apparatus includes an upconversion processing unit upconverting content data stored in a data storage unit, and an upconversion control unit determining an upconversion-target component and the upconversion processing order of components based on component attribute information such as a component type or a tag value of each component of the content data such as elementary streams.
Claims17
An upconversion apparatus for upconverting elementary streams of content data, the upconversion apparatus comprising:
- a storage which stores a plurality of video elementary streams and/or audio elementary streams of a content data, wherein the plurality of video elementary streams and/or audio elementary streams are associated with a same event identifier;
- an upconversion controller which determines a processing order in which the plurality of elementary streams are to be upconverted, based on attribute information of each elementary stream;
- a separator which separates the plurality of elementary streams of the content data stored in the storage;
- a decoder which decodes the separated elementary streams of the content data;
- a processor which upconverts each of the decoded elementary streams of the content data in accordance with the processing order determined by the upconversion controller;
- an encoder which encodes the upconverted elementary streams of the content data;
- and
- a multiplexer which multiplexes the encoded elementary streams of the content data,
- wherein image and/or sound quality of the elementary streams are improved by the upconversion, and the upconversion processing requires time longer than an actual time length of the content data, and
- wherein the storage stores the encoded elementary streams of the content data.
7 more elements
A method of upconverting elementary streams of content data, the method comprising:
- storing a plurality of video elementary streams and/or a plurality of audio elementary streams of a content data, wherein the plurality of video elementary streams and/or audio elementary streams are associated with a same event identifier;
- determining a processing order in which the plurality of elementary streams are to be upconverted, based on attribute information of each elementary stream;
- separating the plurality of elementary streams of the content data;
- decoding the separated elementary streams of the content data;
- upconverting each of the decoded elementary streams of the content data in accordance with the determined processing order;
- encoding the upconverted elementary streams of the content data;
- multiplexing the encoded elementary streams of the content data;
- and
- storing the encoded elementary streams of the content data,
- wherein image and/or sound quality of the elementary streams are improved by the upconversion, and the upconversion processing requires time longer than an actual time length of the content data.
7 more elements
Dependencies are inferred from the claim text.