专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09767812B2 System and method for increasing transmission bandwidth efficiency (“EBT2”) 有权
公开(公告)号：US09767812B2
公开(公告)日：2017-09-19
申请号：US14226788
申请日：2014-03-26
申请人： Sirius XM Radio Inc.
发明人： Paul Marko , Deepen Sinha , Hariom Aggrawal
IPC分类号： G10L19/008 , G10L19/00 , H04H60/58 , G10L19/02
CPC分类号： G10L19/008 , G10L19/00 , G10L19/0212 , G10L2019/0001 , H04H60/58 , H04H2201/18
摘要： Systems and methods for increasing transmission bandwidth efficiency by the analysis and synthesis of the ultimate components of transmitted content are presented. To implement such a system, a dictionary or database of elemental codewords can be generated from a set of audio clips. Using such a database, a given arbitrary song or other audio file can be expressed as a series of such codewords, where each given codeword in the series is a compressed audio packet that can be used as is, or, for example, can be tagged to be modified to better match the corresponding portion of the original audio file. Each codeword in the database has an index number or unique identifier. For a relatively small number of bits used in a unique ID, e.g. 27-30, several hundreds of millions of codewords can be uniquely identified. By providing the database of codewords to receivers of a broadcast or content delivery system in advance, instead of broadcasting or streaming the actual compressed audio signal, all that need be transmitted is the series of identifiers along with any modification instructions to the identified codewords. After reception, intelligence on the receiver having access to a locally stored copy of the dictionary can reconstruct the original audio clip by accessing the codewords via the received IDs, modify them as instructed by the modification instructions, further modify the codewords either individually or in groups using the audio profile of the original audio file (also sent by the encoder) and play back a generated sequence of phase corrected codewords and modified codewords as instructed. In exemplary embodiments of the present invention, such modification can extend into neighboring codewords, and can utilize either or both (i) cross correlation based time alignment and (ii) phase continuity between harmonics, to achieve higher fidelity to the original audio clip.

IPRDB

热门服务

关于我们

友情链接

联系方式