公开(公告)号：US20140376605A1

公开(公告)日：2014-12-25

申请号：US14314440

申请日：2014-06-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Hwan KIM ,  Eui Suk JUNG ,  Sang Soo LEE ,  Yong Yuk WON ,  Sang Min YOON

IPC: H03M7/30

CPC classification number: H03M7/3062 ,  H03M7/30

Abstract: Disclosed are methods and apparatuses for compressing and decompressing data at a sample rate lower than a Nyquist sampling rate for the data. The data compression apparatus comprises a domain converting part performing a domain conversion on input data to generate domain-converted input data, and a data compression part generating compressed data by down-sampling the domain-converted input data at a sampling rate lower than a Nyquist sampling rate. Therefore, data to be transmitted can be compressed in a transmitting end by sampling the data at a sampling rate lower than a Nyquist sampling rate, and then the data can be reproduced in a receiving end. Therefore, a higher compression ratio can be achieved as compared with that of conventional technologies.

Abstract translation: 公开了用于以低于数据的奈奎斯特采样率的采样率对数据进行压缩和解压缩的方法和装置。 数据压缩装置包括对输入数据执行域转换以产生域转换的输入数据的域转换部分，以及数据压缩部分，通过以低于奈奎斯特的采样率对域转换的输入数据进行下采样来生成压缩数据 采样率。 因此，可以在发送端通过以低于奈奎斯特采样率的采样率对数据进行采样来压缩要发送的数据，然后可以在接收端再现数据。 因此，与传统技术相比，可以获得更高的压缩比。