KR910017402A - Interleaving circuit - Google Patents

Interleaving circuit Download PDF

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Publication number
KR910017402A
KR910017402A KR1019900004435A KR900004435A KR910017402A KR 910017402 A KR910017402 A KR 910017402A KR 1019900004435 A KR1019900004435 A KR 1019900004435A KR 900004435 A KR900004435 A KR 900004435A KR 910017402 A KR910017402 A KR 910017402A
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South Korea
Prior art keywords
block address
odd
address signal
symbol
clock pulse
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KR1019900004435A
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Korean (ko)
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KR920006845B1 (en
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주태식
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김광호
삼성전자 주식회사
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Priority to KR1019900004435A priority Critical patent/KR920006845B1/en
Publication of KR910017402A publication Critical patent/KR910017402A/en
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Publication of KR920006845B1 publication Critical patent/KR920006845B1/en

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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

내용 없음No content

Description

인터리빙 회로Interleaving circuit

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

제1도A는 오디오신호의 샘플링 포인트를 나타낸 개략도, 제1도B는 샘플링된 데이타가 디지탈 오디오 테이프상의 A, B트랙상에 인터리빙 되어 실린상태를 나타낸 개략도, 제1도C는 제1도B에서 B트랙의 데이타가 손실되었을때 재생된 오디오 신호의 상태를 나타낸 개략도, 제2도는 본 발명에 의한 인터리빙 회로의 블럭도, 제3도는 DAT 콘퍼런스 포멧에서 제시한 메모리 맵핑의 개략도.FIG. 1A is a schematic diagram showing sampling points of an audio signal, FIG. 1B is a schematic diagram showing a state where sampled data is interleaved on tracks A and B on a digital audio tape, and FIG. 1C is FIG. Fig. 2 is a schematic diagram showing the state of an audio signal reproduced when data of track B is lost, Fig. 2 is a block diagram of an interleaving circuit according to the present invention, and Fig. 3 is a schematic diagram of memory mapping shown in DAT conference format.

Claims (4)

샘플링주파수(fs)로 샘플링되어 Nbit로 양자화된 L.R각 채널의 데이타를 N/2bit의 심볼단위로 하여 L채널우수-R채널우수-L채널기수-R채널기수 순으로 순환하면서 오류정정 코드영역을 제외한 나머지 영역이 4분할된 메모리 영역에 기입함으로써 데이타를 인터리빙하는 디지탈 오디오기기의 인터리빙 회로에 있어서, 상기 샘플링 주파수(fs)를 2배주한 클럭펄스의 매 4회 카운트시 마다 메모리영역의 각 분할영역을 상기 순서에 따라 순환지정하면서 우수번째 블록 어드레스를 지정하고, 이 우수번째 블록어드레스 지정이 끝난 연후에 동일방식으로 기수번째 블록어드레스를 지정하기 위한 블록어드레스 신호 발생수단; 상기 블록어드레스 신호 발생수단의 블록어드레스의 스캔횟수를 카운트하고, 매 홀수번째 스캔시마다 인접하는두 개의 우수번째 심볼어드레스를 순차 지정하고, 매 짝수번째 스캔시마다 상기 두개의 우수번째 심볼어드레스에 교호로 인접하는 두개의 기수번째 심볼 어드레스를 순차지정하는 것을 반복 수행하기 위한 심볼 어드레스신호 발생수단; 상기 블록어드레스신호 및 심볼어드레스신호를 상기 메모리의 기입 어드레스 인에이블 신호에 따라 게이트하고 버퍼링하기 위한 출력버퍼수단; 그리고 상기 출력버퍼수단의 출력신호를 상기 클럭펄스를 소정배주한 클럭펄스에 따라 래치하기 위한 래치수단을 구비한 디지탈 오디오 기기의 인터리빙 회로.The error correction code area is circulated in order of L channel superior-R channel excellent-L channel odd-R channel odd with the data of each LR channel sampled at sampling frequency (fs) and quantized to Nbit in N / 2-bit symbol units. In an interleaving circuit of a digital audio device for interleaving data by writing a memory area divided into four divided memory areas, each divided area of the memory area is divided at every four counts of the clock pulses in which the sampling frequency fs is doubled. Block address signal generating means for designating the even-numbered block address while circularly designating in accordance with the above order, and for designating the odd-numbered block address in the same manner after this even-numbered block address designation is completed; The number of scans of the block address of the block address signal generating means is counted, and two even-numbered symbol addresses are sequentially assigned for every odd scan, and alternately adjacent to the two even-numbered symbol addresses for every even scan. Symbol address signal generating means for repetitively specifying two odd symbol addresses in sequence; Output buffer means for gate and buffering the block address signal and the symbol address signal according to a write address enable signal of the memory; And latching means for latching an output signal of said output buffer means in accordance with a clock pulse in which said clock pulse is predeterminedly distributed. 제1항에 있어서, 상기 블록어드레스신호 발생수단은 상기 클럭펄스를 카운트하여 우수 또는 기수번째 블록어드레스의 매 스캔시 마다 자동 리세트되는 카운터와, 상기 우수 영역에서 기수영역으로 점핑하기 위해 상기 카운터의 출력값에 일정수를 가산하기 위한 가산기와, 상기 가산기의 출력을 클럭펄스와 동기시키기 위한 게이트 수단으로 이루어진 것을 특징으로 하는 디지탈 오디오 기기의 인터리빙 회로.2. The apparatus of claim 1, wherein the block address signal generating means includes a counter that counts the clock pulses and automatically resets every scan of even or odd block addresses, and jumps from the even region to the odd region. And an adder for adding a predetermined number to an output value, and a gate means for synchronizing an output of the adder with a clock pulse. 제2항에 있어서, 상기 심볼 어드레스신호 발생수단은 상기 블록어드레스신호 발생수단의 카운터의 자동리세트 펄스를 카운트하는 카운터와, 이 카운터의 출력을 상기 클럭펄스와 동기시키기 위한 게이트수단으로 이루어진 것을 특징으로 하는 디지탈 오디오 기기의 인터리빙 회로.3. The apparatus of claim 2, wherein the symbol address signal generating means comprises a counter for counting automatic reset pulses of a counter of the block address signal generating means, and gate means for synchronizing the output of the counter with the clock pulse. An interleaving circuit of a digital audio device. 제1항에 있어서, 상기 클럭펄스는 1/4 듀티비를 가지며 이 클럭펄스의 하기기간내에서 인터리빙 동작이 수행되는 것을 특징으로 하는 디지탈 오디오 기기의 인터리빙 회로.2. The interleaving circuit of a digital audio device according to claim 1, wherein said clock pulse has a 1/4 duty ratio and an interleaving operation is performed within the following period of the clock pulse. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900004435A 1990-03-31 1990-03-31 Interleaving circuit KR920006845B1 (en)

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Application Number Priority Date Filing Date Title
KR1019900004435A KR920006845B1 (en) 1990-03-31 1990-03-31 Interleaving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900004435A KR920006845B1 (en) 1990-03-31 1990-03-31 Interleaving circuit

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KR910017402A true KR910017402A (en) 1991-11-05
KR920006845B1 KR920006845B1 (en) 1992-08-20

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KR920006845B1 (en) 1992-08-20

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