KR970023182A

KR970023182A - Players with different frequencies of audio

Info

Publication number: KR970023182A
Application number: KR1019950035702A
Authority: KR
Inventors: 황성배
Original assignee: 구자홍; Lg 전자 주식회사
Priority date: 1995-10-16
Filing date: 1995-10-16
Publication date: 1997-05-30
Also published as: KR100357090B1

Abstract

본 발명은 주파수가 다른 오디오의 플레이어장치에 관한 것으로써, 특히 MPEG(Mov-ing Pictures Experts Group)등 압축된 오디오를 디코딩할때 어떠한 샘플링(sampl-ing) 주파수의 스트림이 입력되어도 하나의 클락(clock)을 이용하여 시스템의 사용 주파수 오디오 데이타를 복원할 수 있도록 한 주파수가 다른 오디오의 플레이어장치에 관한 것이다.The present invention relates to a player device for audio having different frequencies. In particular, when decoding a compressed audio such as MPEG (Mov-ing Pictures Experts Group), a stream of any sampling frequency is inputted. It relates to a player device of one audio at a different frequency so that a clock can be used to restore the system's frequency audio data.

상기와 같은 본 발명의 주파수가 다른 오디오 플레이어장치는 전송되는 스트림신호를 디지탈 오디오 신호로 디코딩하고, 상기 디코딩된 신호의 주파수를 시스템에서 사용되는 샘플링 주파수로 변환하는 오디오 디코더와, 상기 오디오 디코더에서 디코딩되고 주파수 변환된 디지탈 오디오신호를 아나로그 오디오 신호를 변환하여 스피커로 출력하는 D/A컨버터와, 상기 오디오 디코더를 제어하는 컨트롤러로 구성되어 오디오 시스템을 간단화 함으로써 여러 입력 주파수의 오디오 데이타를 복원할 수 있도록 한 것이다.As described above, an audio player device having a different frequency may include an audio decoder for decoding a transmitted stream signal into a digital audio signal, and converting the frequency of the decoded signal into a sampling frequency used in a system, and decoding in the audio decoder. And a D / A converter that converts the analog audio signal to a speaker by converting the analog audio signal and outputs it to a speaker, and a controller for controlling the audio decoder to simplify audio system to restore audio data of various input frequencies. I would have to.

Description

Players with different frequencies of audio

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 주파수가 다른 오디오 플레이어장치의 블록구성도,2 is a block diagram of an audio player device having a different frequency according to the present invention;

제4도는 제2도의 주파수 변환기의 내부 블록구성도.4 is an internal block diagram of the frequency converter of FIG.

Claims

An audio decoder which decodes the transmitted stream signal into a digital audio signal, converts the frequency of the decoded signal into a sampling frequency used in the system, and converts the digital audio signal decoded and frequency-converted by the audio decoder into an analog audio signal. And a D / A converter for converting and outputting the speaker to a speaker, and a controller for controlling the audio decoder.

The audio decoder of claim 1, wherein the audio decoder comprises: an MPEG decoder for compressing and decoding a transmitted input stream signal, a buffer for recording a data signal compressed and decoded by the MPEG decoder, and a control signal of the controller. And a frequency converter for converting a data frequency signal recorded in the apparatus into a sampling frequency suitable for a system.

3. The frequency converter of claim 2, wherein the frequency converter comprises: an interplate interpolating the input digital audio data, a filter separating the low frequency signal interpolated by the inflator, and a low pass frequency signal from the low frequency passing signal. A player apparatus for audio having different frequencies, characterized in that it comprises a decimator for filtering the sampling frequency.

※ Note: The disclosure is based on the initial application.