KR890017687A - Frequency conversion circuit of digital audio system - Google Patents

Frequency conversion circuit of digital audio system Download PDF

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Publication number
KR890017687A
KR890017687A KR1019880005809A KR880005809A KR890017687A KR 890017687 A KR890017687 A KR 890017687A KR 1019880005809 A KR1019880005809 A KR 1019880005809A KR 880005809 A KR880005809 A KR 880005809A KR 890017687 A KR890017687 A KR 890017687A
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KR
South Korea
Prior art keywords
data
divider
sampling frequency
digital audio
audio system
Prior art date
Application number
KR1019880005809A
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Korean (ko)
Inventor
변형구
Original Assignee
안시환
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR1019880005809A priority Critical patent/KR890017687A/en
Publication of KR890017687A publication Critical patent/KR890017687A/en

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Abstract

내용 없음No content

Description

디지탈 오디오 시스템의 주파수 변환회로Frequency conversion circuit of digital audio system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 디지탈 오디오 시스템의 재생 계통도. 제2도는 본 발명의 구체 회로도. 제3도는 제2도의 각 부분에 대한 동작 파형도.1 is a reproduction schematic diagram of a digital audio system. 2 is a detailed circuit diagram of the present invention. 3 is an operational waveform diagram for each part of FIG.

Claims (2)

제1샘플링 주파수를 갖는 제1데이타를 제2샘플링 주파수를 갖는 제2데이타로 변환하는 디지탈 오디오 시스템에 있어서, 상기 제1데이타를 제2데이타를 변환하기 위해 상기 제1샘플링 주파수로 홀딩하여 제1-제3완충데이타를 발생하는 버퍼 수단과, 상기 제1-제3완충데이타를 연산하여 선형 보간법에 의해 제 2데이타로 변환하도록 제1 및 제2연산데이타를 발생하는 연산수단과, 상기 제1 및 제2연산데이타를 일시 저장하는 메모리수단과, 제2샘플링 주파수에 맞도록 제3완충데이타 및 제1 및 제2연산데이타를 순차적으로 선택 출력하는 주파수 변환 수단으로 구성함을 특징으로 하는 주파수 변환회로.A digital audio system for converting a first data having a first sampling frequency into a second data having a second sampling frequency, wherein the first data is held at the first sampling frequency to convert the second data to a first data. Buffer means for generating third buffered data, computing means for generating first and second computational data for calculating the first to third buffered data and converting it into second data by linear interpolation; And memory means for temporarily storing the second operation data, and frequency conversion means for sequentially selecting and outputting the third buffered data and the first and second operation data to match the second sampling frequency. Circuit. 제1항에 있어서, 상기 제1완충데이타를 1/3크기로 하는 제3제산기(23)와, 상기 제2완충데이타를 2/3크기로 하는 제2제산기(22) 및 승산기(31)와, 상기 제3완충데이타를 1/3크기로 하는 제1제산기(21)와, 상기 제1제산기(21)및 승산기(31)의 출력을 가산하여 제1연산데이타를 발생하는 제1가산기(42)와, 상기 제3제산기(21) 및 승산기(31)의 출력을 가산하여 제2연산데이타를 발생하는 제2가산기(42)로 구성함을 특징으로 하는 주파수 변환회로.The third divider (23) having the first buffer data of 1/3 size, the second divider (22) and the multiplier (31) of the second buffer data of 2/3 size. ), A first divider 21 having the third buffered data having a size of 1/3, and outputs of the first divider 21 and the multiplier 31 are added to generate the first computed data. And a second adder (42) which adds outputs of the first adder (42), the third divider (21), and the multiplier (31) to generate second calculation data. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880005809A 1988-05-18 1988-05-18 Frequency conversion circuit of digital audio system KR890017687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880005809A KR890017687A (en) 1988-05-18 1988-05-18 Frequency conversion circuit of digital audio system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880005809A KR890017687A (en) 1988-05-18 1988-05-18 Frequency conversion circuit of digital audio system

Publications (1)

Publication Number Publication Date
KR890017687A true KR890017687A (en) 1989-12-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880005809A KR890017687A (en) 1988-05-18 1988-05-18 Frequency conversion circuit of digital audio system

Country Status (1)

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KR (1) KR890017687A (en)

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