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KR880701058A - 멀티 채널 스테레오 재생장치 - Google Patents

멀티 채널 스테레오 재생장치

Info

Publication number
KR880701058A
KR880701058A KR870700633A KR870700633A KR880701058A KR 880701058 A KR880701058 A KR 880701058A KR 870700633 A KR870700633 A KR 870700633A KR 870700633 A KR870700633 A KR 870700633A KR 880701058 A KR880701058 A KR 880701058A
Authority
KR
South Korea
Prior art keywords
signal
circuit
channel stereo
composite
composite signal
Prior art date
Application number
KR870700633A
Other languages
English (en)
Other versions
KR950008651B1 (ko
Inventor
데루히사 이데
Original Assignee
오오가 노리오
소니 가부시끼 가이샤
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.)
Filing date
Publication date
Application filed by 오오가 노리오, 소니 가부시끼 가이샤 filed Critical 오오가 노리오
Publication of KR880701058A publication Critical patent/KR880701058A/ko
Application granted granted Critical
Publication of KR950008651B1 publication Critical patent/KR950008651B1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

내용 없음

Description

멀티 채널 스테레오 재생장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 종래의 멀티 채널 스테레오 재생 장치의 일실시예를 도시하는 구성도.

Claims (5)

  1. 좌 전방 신호를 LF, 우 전방 신호를 RF, 중앙 전방 신호를 F, 후방 신호를 B라 할때, 이들의 각 신호가 LT=LF++및 RT=RF+­로 표시되는 좌 및 우 복합 신호 LT 및 RT로 부호화됨과 함께 상기 후방신소 B의 고역 성분이 프리엠파시스 되어진 기록된 녹음 매체를 재생하는 바와 같은 멀티 채널 스테레오 재생 장치에 있어서, 상기 좌복합 신호 LT, 상기 우 복합 신호 RT, 상기 좌 복합 신호 LT와 상기 우 복합 신호 RT와의 합신호 LT+RT 및 상기 좌 복합 신호 LT와 상기 우 복합 신호 RT와의 차신호 LT－RT를 출력하는 매트릭스 회로와, 상기 좌 복합 신호 LT, 상기 우 복합 신호 RT 및 상기 합신호 LT+RT를 각각 재생하는 재생 회로와, 상기 차신호 LT－RT를 지연 회로 및 디엠파시스 회로를 통해서 재생하는 재생 회로를 가지며, 중앙 전방 신호 F 및 후방 신호 B가 부호화되지 아니한 좌 및 우 전방 신호 LF 및 RF 만으로 형성되는 2채널 스테레오 신호를 기록한 녹음 매체의 재생시에는 상기 디엠파시스 회로를 바이패스하는 수단을 설치한 것을 특징으로 하는 멀티 채널 스테레오 재생 장치.
  2. 제 1 항에 있어서, 상기 바이패스 수단은 1쌍의 고정 접점 및 가동 접점을 갖는 전환 스위치로 형성되며, 상기 1쌍의 고정 접점은 상기 디엠파시스 회로의 입력측과 출력측에 각각 접속됨과 동시에 상기 가동 접점은 상기 재생 회로의 출력측으로 접속되는 것을 특징으로 하는 멀티 채널 스테레오 재생 장치.
  3. 제 2 항에 있어서, 상기 디엠파시스 회로는 상기 차신호 LT－RT 신호의 신호 레벨에 의해서, 고역 주파수의 신호 레벨이 강조되는 주파수 특성이 부여되는 것을 특징으로 하는 멀티 채널 스테레오 재생 장치.
  4. 제 3 항에 있어서, 상기 주파수 특성은 신호 레벨이 약 30dB 일때 대략 4KHz이상에 있어서 5dB 의 강조가 되는 것을 특징으로 하는 멀티 채널 스테레오 재생 장치.
  5. 제 1 항에 있어서, 상기 차신호 LT－RT를 지연하는 지연 회로는 A/D 변환기 및 D/A 변환기를 갖는 디지탈 회로로 구성이 되는 것을 특징으로 하는 멀티 채널 스테레오 재생 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870700633A 1985-11-22 1986-11-18 멀티 채널 스테레오 재생장치 KR950008651B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP60263158A JPS62122500A (ja) 1985-11-22 1985-11-22 マルチチヤンネルステレオ再生装置
JP263158 1985-11-22
PCT/JP1986/000588 WO1987003449A1 (en) 1985-11-22 1986-11-18 Multi-channel stereo reproducing apparatus

Publications (2)

Publication Number Publication Date
KR880701058A true KR880701058A (ko) 1988-04-22
KR950008651B1 KR950008651B1 (ko) 1995-08-03

Family

ID=17385595

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870700633A KR950008651B1 (ko) 1985-11-22 1986-11-18 멀티 채널 스테레오 재생장치

Country Status (8)

Country Link
US (1) US4807217A (ko)
EP (1) EP0249640B1 (ko)
JP (1) JPS62122500A (ko)
KR (1) KR950008651B1 (ko)
AU (1) AU595845B2 (ko)
DE (1) DE3687836T2 (ko)
HK (1) HK95895A (ko)
WO (1) WO1987003449A1 (ko)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183495A (ja) * 1987-01-27 1988-07-28 ヤマハ株式会社 音場制御装置
US5043970A (en) * 1988-01-06 1991-08-27 Lucasarts Entertainment Company Sound system with source material and surround timbre response correction, specified front and surround loudspeaker directionality, and multi-loudspeaker surround
US5222059A (en) * 1988-01-06 1993-06-22 Lucasfilm Ltd. Surround-sound system with motion picture soundtrack timbre correction, surround sound channel timbre correction, defined loudspeaker directionality, and reduced comb-filter effects
ATE120605T1 (de) * 1988-01-06 1995-04-15 Lucasarts Entertainment Co Räumliches schallwiedergabesystem.
JPH01126700U (ko) * 1988-02-12 1989-08-30
JPH0228200U (ko) * 1988-08-12 1990-02-23
KR910008762B1 (ko) * 1988-12-07 1991-10-19 삼성전자 주식회사 4채널 서라운드 사운드 발생회로
JPH0623119Y2 (ja) * 1989-01-24 1994-06-15 パイオニア株式会社 サラウンド方式ステレオ再生装置
US5594800A (en) * 1991-02-15 1997-01-14 Trifield Productions Limited Sound reproduction system having a matrix converter
WO1994010816A1 (en) * 1992-10-29 1994-05-11 Wisconsin Alumni Research Foundation Methods and apparatus for producing directional sound
NL9401860A (nl) * 1994-11-08 1996-06-03 Duran Bv Luidsprekersysteem met bestuurde richtinggevoeligheid.
US5708719A (en) * 1995-09-07 1998-01-13 Rep Investment Limited Liability Company In-home theater surround sound speaker system
US5930370A (en) * 1995-09-07 1999-07-27 Rep Investment Limited Liability In-home theater surround sound speaker system
US6118876A (en) * 1995-09-07 2000-09-12 Rep Investment Limited Liability Company Surround sound speaker system for improved spatial effects
US6154549A (en) * 1996-06-18 2000-11-28 Extreme Audio Reality, Inc. Method and apparatus for providing sound in a spatial environment
US5850455A (en) * 1996-06-18 1998-12-15 Extreme Audio Reality, Inc. Discrete dynamic positioning of audio signals in a 360° environment
US6198826B1 (en) * 1997-05-19 2001-03-06 Qsound Labs, Inc. Qsound surround synthesis from stereo
JP3573981B2 (ja) * 1998-11-17 2004-10-06 パイオニア株式会社 オーディオ信号処理用集積回路
US6925426B1 (en) 2000-02-22 2005-08-02 Board Of Trustees Operating Michigan State University Process for high fidelity sound recording and reproduction of musical sound
AUPQ938000A0 (en) * 2000-08-14 2000-09-07 Moorthy, Surya Method and system for recording and reproduction of binaural sound
MY161131A (en) * 2011-02-22 2017-04-14 Basf Se Polymers on the basis of glycerin carbonate and an amine
CN104269165A (zh) * 2014-09-10 2015-01-07 韩熠 吉他数字延时效果器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49120201U (ko) * 1972-09-25 1974-10-15
JPS5190901U (ko) * 1975-01-20 1976-07-21
US3971890A (en) * 1975-02-10 1976-07-27 Cbs Inc. Method and apparatus for quadraphonic enhancement of stereophonic signals
JPS5190801U (ko) * 1976-01-08 1976-07-21
GB2006583B (en) * 1977-10-14 1982-04-28 Dolby Lab Licensing Corp Multi-channel sound systems
US4303800A (en) * 1979-05-24 1981-12-01 Analog And Digital Systems, Inc. Reproducing multichannel sound
US4532647A (en) * 1981-08-19 1985-07-30 John C. Bogue Automatic dimension control for a directional enhancement system
US4525855A (en) * 1981-08-27 1985-06-25 John C. Bogue Variable rate and variable limit dimension controls for a directional enhancement system
JPS5963813A (ja) * 1982-10-02 1984-04-11 Kazuyoshi Kanematsu 遅延回路
US4577305A (en) * 1983-03-14 1986-03-18 Dolby Laboratories Licensing Corporation Stereophonic motion picture photographic sound-tracks compatible with different sound projection formats and record and playback apparatus therefore

Also Published As

Publication number Publication date
EP0249640A1 (en) 1987-12-23
US4807217A (en) 1989-02-21
AU6627386A (en) 1987-07-01
EP0249640B1 (en) 1993-02-24
JPS62122500A (ja) 1987-06-03
HK95895A (en) 1995-06-23
AU595845B2 (en) 1990-04-12
KR950008651B1 (ko) 1995-08-03
DE3687836D1 (de) 1993-04-01
WO1987003449A1 (en) 1987-06-04
EP0249640A4 (en) 1989-09-19
DE3687836T2 (de) 1993-07-22

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