KR960032414A - Sound signal frame correction method and apparatus - Google Patents

Sound signal frame correction method and apparatus Download PDF

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KR960032414A
KR960032414A KR1019950003887A KR19950003887A KR960032414A KR 960032414 A KR960032414 A KR 960032414A KR 1019950003887 A KR1019950003887 A KR 1019950003887A KR 19950003887 A KR19950003887 A KR 19950003887A KR 960032414 A KR960032414 A KR 960032414A
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signal
frame
samples
sound signal
sound
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KR1019950003887A
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KR0162218B1 (en
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민형석
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김광호
삼성전자 주식회사
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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
    • G11B20/18Error detection or correction; Testing, e.g. of drop-outs
    • 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
    • G11B20/10009Improvement or modification of read or write signals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

본 발명에 의한 디지털 음향신호 프레임 정정 방법 및 장치는 음향신호의 샘플수의 디코딩시 오류가 발생하였을 때에 영상신호 1프레임 구간을 기준으로 음향신호 1프레임을 재조종하여 항상 영상신호에 해당하는 올바른 음향신호를 재생하도록 하기 위하여 영상신호 1프레임 구간동안의 음향신호의 샘플수를 카운트하는 표준샘플부, 재생시 음향신호의 샘플수를 디코딩하는 디코더부, 및 표준샘플부로부터의 샘플수단 디코더부로부터 재생된 음향신호의 샘플수를 비교하여 음향신호 프레임을 재생하는 비교재생부로 구성되어 있다.The digital sound signal frame correction method and apparatus according to the present invention always re-controls an audio signal frame based on one frame of a video signal when an error occurs in decoding the number of samples of the sound signal, so that the correct sound always corresponds to the video signal. Reproducing from a standard sample unit for counting the number of samples of the audio signal during one frame of the video signal, a decoder for decoding the sample number of the audio signal during reproduction, and a sample means decoder unit from the standard sample for reproducing the signal And a comparison reproducing unit for reproducing the sound signal frame by comparing the number of samples of the received sound signal.

Description

음향신호 프레임 정정 방법 및 장치Sound signal frame correction method and apparatus

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

제1도는 본 발명에 대한 음향신호 프레임 정정 장치의 전체 구성을 나타내는 블럭도,1 is a block diagram showing the overall configuration of an acoustic signal frame correction apparatus according to the present invention;

제2도는 본 발명에 의한 음향신호 프레임 정정 장치의 표준샘플부의 상세블럭도,2 is a detailed block diagram of a standard sample unit of an acoustic signal frame correction apparatus according to the present invention;

제3도는 본발명에 의한 음향신호 프레임 정정장치의 비교재생부의 상세블럭도.3 is a detailed block diagram of a comparison reproduction unit of an acoustic signal frame correcting apparatus according to the present invention.

Claims (7)

디지털 VCR의 음향신호 프레임 정정 방법에 있어서, 영상신호 1프레임 구간동안의 음향신호의 표준 샘플수를 카운트하는 과정; 재생시 음향신호의 샘플수를 디코딩하는 과정; 및 상기 카운트 과정에서의 영상신호 1프레임 구간동안의 음향신호의 표준 샘플수와 상기 디코딩 과정에서의 음향신호의 샘플수를 비교하여 음향신호 프레임을 재생하는 과정을 포함하는 것을 특징으로 하는 음향신호 프레임 정정 방법.A sound signal frame correction method of a digital VCR, comprising: counting a standard number of samples of an audio signal during one frame of a video signal; Decoding the number of samples of the sound signal during reproduction; And reproducing an audio signal frame by comparing the standard number of samples of the audio signal during one frame of the video signal in the counting process with the number of samples of the audio signal in the decoding process. Correction method. 제1항에 있어서, 상기 카운트 과정은 영상신호의 프레임을 구분하는 신호를 음향신호의 주파수를 가지는 클럭으로 카운트하여 영상신호의 각 프레임이 끝날때마다 각 프레임에 해당하는 음향신호의 표준샘플수를 출력하는 것임을 특징으로 하는 음향신호 프레임 정정 방법.The method of claim 1, wherein the counting process counts a signal that divides a frame of an image signal into a clock having a frequency of an audio signal, and calculates a standard sample number of an audio signal corresponding to each frame at the end of each frame of the image signal. The sound signal frame correction method, characterized in that the output. 제1항에 있어서, 상기 음향신호 프레임을 재생하는 과정은 상기 카운트 과정의 음향신호의 표준샘플수와 상기 디코딩 과정의 음향신호 샘플수의 차이를 연산하는 과정; 상기의 차이가 비교기중값을 비교하여 비교기준 값보다 크면 카운트 과정에 의한 음향신호의 표준샘플수에 음향신호 프레임을 결정하고, 상기의 차이가 비교기준값보다 작으면 디코딩 과정에 의한 음향신호의 샘플수에 의하여 음향신호 프레임을 결정하는 과정을 포함하는 것을 특징으로 하는 음향신호 프레임 정정 방법.The method of claim 1, wherein the reproducing of the sound signal frame comprises: calculating a difference between a standard sample number of the sound signal in the counting process and a sound signal sample number in the decoding process; If the difference is greater than the reference value by comparing the comparator value, the sound signal frame is determined by the standard sample number of the sound signal by the counting process.If the difference is less than the reference value, the sample of the sound signal by the decoding process is determined. And determining a sound signal frame by a number. 디지털 VCR에서 영상신호 1프레임에 해당하는 음향신호 프레임을 재생하는 장치에 있어서, 영상신호 1프레임 구간동안의 음향신호의 샘플수를 카운트하는 표준 샘플부; 재생시 음향신호의 샘플수를 디코딩하는 디모더부; 및 표준샘플부로부터의 샘플수와 디코더부로부터 재생된 음향신호의 샘플수를 비교하여 음향신호프레임을 재생하는 비교재생부를 포함하는 것을 특징으로 하는 음향신호 프레임 정정 장치.An apparatus for reproducing an audio signal frame corresponding to one frame of a video signal in a digital VCR, comprising: a standard sample unit for counting the number of samples of the audio signal during one frame of the video signal; A demodulator unit which decodes the number of samples of the sound signal during reproduction; And a comparison / reproducing unit for reproducing the sound signal frame by comparing the number of samples from the standard sample unit with the number of samples of the sound signal reproduced from the decoder unit. 제4항에 있어서, 상기 표준샘플부는 영상프레임 신호를 인가받아, 영상신호의 각 프레임이 시작될 때마다 카운터의 카운터값을 "0"으로 하는 리셋신호를 출력하는 리셋신호발생부; 음향신호 샘플 주파수를 가지는 클럭에 의해 영상신호의 각 프레임에 해당하는 음향신호의 표준 샘플수를 카운트하는 카운터; 영상프레임 신호를 인가받아, 랫치부로 랫치신호를 발생하는 랫치신호 발생부; 및 랫치신호에 의해 카운터로부터의 음향신호 샘플수를 랫치시켰다가 영상신호의 각 프레임이 끝나는 순간에 영상신호의 각 프레임에 해당하는 음향신호의 표준샘플수를 출력하는 랫치부를 포함하는 것을 특징으로 하는 음향신호 프레임 정정 장치.The display apparatus of claim 4, wherein the standard sample unit comprises: a reset signal generator which receives a video frame signal and outputs a reset signal for setting a counter value of the counter to “0” each time each frame of the video signal starts; A counter for counting the number of standard samples of the sound signal corresponding to each frame of the video signal by a clock having a sound signal sample frequency; A latch signal generator for receiving an image frame signal and generating a latch signal to the latch unit; And a latch unit which latches the number of acoustic signal samples from the counter by the latch signal and outputs the standard sample number of the acoustic signal corresponding to each frame of the video signal at the end of each frame of the video signal. Sound signal frame correction device. 제4항에 있어서, 상기 비교재생부는 디코더로부터의 음향신호 샘플수와 표준샘플부로부터의 표준샘플수의 차를 연산하는 연산기; 기준값신호를 인가받아, 디코더로부터의 음향신호 샘플수와 표준샘플부로부터의 표준샘플수의 차를 기준값과 비교하는 제1비교기; 음향신호 샘플수와 표준샘플수의 차가 기준값보다 크면 표준샘플수를 선택하고, 음향신호 샘플수와 표준샘플수의 차가 기준값보다 작으면 음향신호 샘플수를 선택하는 스윗치부; 카운터의 리셋신호를 발생하는 리셋신호발생부; 음향신호 샘플 주파수를 가지는 클럭에 의해 영상신호의 각 프레임에 해당하는 음향신호의 표준 샘플수를 카운트하는 카운터; 스위치부에서 선택된 영상신호의 1프래임에 해당하는 음향신호의 샘플수와 카운트값을 비교하는 제2비교기; 상기 제2비교기에 의해 카운트값이 상기 스윗치부에 의해 선택된 샘플수와 같아지면 음향신호의 프레임을 결정하는 음향프레임 토글 신호를 출력하는 음향프레임 발생부를 포함하는 것을 특징으로 하는 영상신호 프레임 정정 장치.5. The apparatus of claim 4, wherein the comparison and playback section comprises: an operator for calculating a difference between the number of sound signal samples from the decoder and the number of standard samples from the standard sample section; A first comparator for receiving a reference value signal and comparing a difference between the number of acoustic signal samples from the decoder and the number of standard samples from the standard sample unit with the reference value; A switch unit for selecting a standard sample number when the difference between the number of acoustic signal samples and the standard sample is larger than the reference value and selecting the number of acoustic signal samples when the difference between the number of acoustic signal samples and the standard sample is smaller than the reference value; A reset signal generator for generating a counter reset signal; A counter for counting the number of standard samples of the sound signal corresponding to each frame of the video signal by a clock having a sound signal sample frequency; A second comparator for comparing a sample number and a count value of an audio signal corresponding to one frame of the video signal selected by the switch unit; And an audio frame generator for outputting an audio frame toggle signal for determining a frame of the audio signal when the count value is the same as the number of samples selected by the switch unit by the second comparator. 제6항에 있어서, 상기 리셋신호 발생기는 최초의 리셋신호는 영상프레임신호에 의하고, 그 후의 리셋신호는 음향프레임 토글 신호에 의해 발생되는 것임을 특징으로 하는 음향신호 프레임 정정 장치.7. The apparatus of claim 6, wherein the reset signal generator is a first reset signal generated by an image frame signal and a subsequent reset signal generated by an audio frame toggle signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950003887A 1995-02-27 1995-02-27 Apparatus and method for correcting a voice signal frame KR0162218B1 (en)

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KR1019950003887A KR0162218B1 (en) 1995-02-27 1995-02-27 Apparatus and method for correcting a voice signal frame

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KR1019950003887A KR0162218B1 (en) 1995-02-27 1995-02-27 Apparatus and method for correcting a voice signal frame

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KR960032414A true KR960032414A (en) 1996-09-17
KR0162218B1 KR0162218B1 (en) 1998-12-15

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