Time domain aliasing cancellation apparatus and signal processing method thereof

Jar-Ferr Yang (Inventor)

Research output: Patent

Abstract

A time domain aliasing cancellation (TDAC) apparatus and its signal processing method to be used with the AC-3 high-fidelity audio signal compression system of the MPEG-2 international video standard. This invention proposes two preferred embodiments to realize the compression encoding and decoding processes of the TDAC apparatus. The first preferred embodiment employs a data reordering technique to change the TDAC encoding to a discrete cosine transform (DCT), and furthermore, it changes the TDAC decoding to a inverse discrete cosine transform (IDCT). This implementation has the least computational complexity. The second preferred embodiment utilizes data reordering to change the TDAC encoding and decoding into a type IV discrete cosine transformation, and then converts the DCT transformation into a 2nd order infinite impulse filter.
Translated title of the contributionTime domain aliasing cancellation apparatus and signal processing method thereof
Original languageEnglish
Patent number5857000
Publication statusPublished - 1800

Fingerprint Dive into the research topics of 'Time domain aliasing cancellation apparatus and signal processing method thereof'. Together they form a unique fingerprint.

Cite this