2024年4月12日发(作者：)

专利内容由知识产权出版社提供

专利名称：Realizing high quality LPCM audio data as

two separate elementary streams

发明人：David Konetski

申请号：US11056637

申请日：20050211

公开号：US2A1

公开日：20060817

专利附图：

摘要：A method and apparatus for providing high definition audio formats in a

minimum file size while providing compatibility for media players capable of decoding

only lower quality audio files. In an embodiment of the invention, a linear pulse code

modulation (LPCM) 192/24 data stream is split into two elementary data streams. The

primary data stream is in LPCM 96/24 (96 KHz sampling rate and 24 bit sample size)

format, which can be rendered by all media players capable of decoding advanced

entertainment formats. The secondary data stream is comprised of additional bits

required for support of the LPCM 192/24 format. Media players capable of only reading

LPCM 96/24 format can operate by rendering the primary data stream in its native

format. Players capable of reading the LPCM 192/24 format combine the primary and

secondary data streams to create a composite LPCM 192/24 data stream for rendering.

The combined size of resulting primary and secondary data stream files is less than the

file size created by current implementations of LPCM 192/24 supporting a separate

mandatory audio stream of LPCM 96/24. Using the method and apparatus of the

invention, high definition audio formats can be supported with reduced file sizes, and

base-level media players will be able to render the highest quality audio format they are

capable of supporting.

申请人：David Konetski

地址：Austin TX US

国籍：US

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