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KR930001740A - 고능률 부호화 신호 처리 장치 - Google Patents

고능률 부호화 신호 처리 장치 Download PDF

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KR930001740A
KR930001740A KR1019920009532A KR920009532A KR930001740A KR 930001740 A KR930001740 A KR 930001740A KR 1019920009532 A KR1019920009532 A KR 1019920009532A KR 920009532 A KR920009532 A KR 920009532A KR 930001740 A KR930001740 A KR 930001740A
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data
decoding
error
block
detecting
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KR960002730B1 (ko
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겐지 시모다
히토시 다케다
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아오이 죠이치
가부시기가이샤 도시바
오오시마 고타로오
도시바 오디오 비디오 엔지니어링 가부시기가이샤
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Abstract

내용 없음

Description

고능률 부호화 신호 처리 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 고능률 부호화 신호 처리장치의 부호화측의 일실시예를 도시하는 블록도.
제2도는 제1도중의 비트율 저감회로(53)의 구체적인 구성을 나타낸 블록도.
제3도는 제1도중의 저역 부호화 회로(71),(76), 고역 부호화 회로(72),(75), 부호량 배분회로(73),(74) 및 전송 신호 패킷 회로(81)의 구체적인 구성을 도시하는 블록도.
제4도는 본 발명에 따른 고능률 부호화 신호 처리장치의 복호측의 일실시예를 도시하는 블록도.
제5도는 제4도중의 비트율 복원회로(101)의 구체적인 구성을 도시하는 블록도.
본 내용은 요부공개 건이므로 전문 내용을 수록하지 않았음

Claims (4)

  1. 단일 프레임내의 소정 블록 단위로 데이타를 주파수 변환하여 데이타 압축을 위해 변환 계수를 출력하는 데이타 압축수단(53)과;상기 압축 수단(53)으로부터 변환 계수의 저역 성분을 부호화 하는 저역 성분 부호화수단(71,76)과;상기 압축 수단(53)으로부터 변환 계수의 고역 성분을 부호화하는 고역 성분부호화 수단(72,75)과;상기 저역 성분 부호화 수단(71,76)으로 부터의 데이타를 소정 주기로 출력하는 제1전송 순서 패킷 수단(72)과;상기 고역 성분 부호화수단(72,75)으로부터의 데이타에 대해 소정의 순서화를 실행하며 상기 데이타를 출력하는 제2전송 순서 패킷 수단(79)을 구비한 것을 특징으로 하는 고능률 부호화 신호 처리장치.
  2. 입력된 가변 길이 데이타를 복호하는 가변 길이 데이타 복호 회로(94)와;상기 가변 길이 데이타 복호 회로(94)에 있어서 복호 불능으로 된 데이타를 검출하여 복호 출력이 유효인지 무효인지를 판정하는 복호 에러 검출회로(161)와;상기 븍호 에러 검출 회로(161)의 판정 결과에 의거한 타이밍으로 상기 가변길이 데이타 복호 회로(94)의 복호 출력을 소정치로 치환하여 출력하는 치환수단(163)을 구비한 것을 특징으로 하는 고능률 부호화 신호 처리장치.
  3. 단일 프레임내의 소정 블록 단위로 부호화된 입력 데이타를 복호하는 복호 수단(91)과;상기 복호 수단(91)에 있어서, 복호 불능으로 된 데이타를 검출하여 복호 출력이 유효인지 무효인지를 판정하는 복호 에러 검출회로(161)와;상기 복호 수단의 출력을 유지하는 유지 수단(94)과;상기 유지 수단(94)에서 에러 블록에 인접한 블록의 데이타를 수용하여 에러 블록의 데이타 길이를 추정하고 상기 복호 에러 검출 회로(161)의 판정 결과에 의거한 타이밍으로 상기 복호 수단에 다음 블록의 데이타의 복호 개시를 지시하는 데이타 길이 추정 수단(165)을 구비한 것을 특징으로 하는 고능률 부호화 신호 처리장치.
  4. 단일 프레임내의 소정 블록 단위로 부호화된 입력 데이타를 복호하는 복호 수단과;상기 입력 데이타의 에러를 검출하는 에러검출수단(91)과;상기 복호 수단의 출력을 유지하는 유지 수단(173)과;상기 에러 검출 수단(91)에 의해 에러 블록이 지시되어 상기 유지 수단에서 에러 블록에 인접한 블록의 데이타가 주어져서 상관성을 판단하여 보간 데이타를 발생시키는 보간 신호 발생 수단(172)과;상기 에러 블록의 데이타를 상기 보간 데이타와 치환하여 출력하는 치환수단(13)을 구비한 것을 특징으로 하는 고능률 부호화 신호 처리장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920009532A 1991-06-04 1992-06-02 고능률 부호화 신호 처리 장치 KR960002730B1 (ko)

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