SE380418B - SOUND DETERMINATION SYSTEM - Google Patents

SOUND DETERMINATION SYSTEM

Info

Publication number
SE380418B
SE380418B SE7207224A SE722472A SE380418B SE 380418 B SE380418 B SE 380418B SE 7207224 A SE7207224 A SE 7207224A SE 722472 A SE722472 A SE 722472A SE 380418 B SE380418 B SE 380418B
Authority
SE
Sweden
Prior art keywords
determination system
sound determination
sound
determination
Prior art date
Application number
SE7207224A
Other languages
Swedish (sv)
Inventor
D Hafler
Original Assignee
Dynaco Inc
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 Dynaco Inc filed Critical Dynaco Inc
Publication of SE380418B publication Critical patent/SE380418B/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic Arrangements (AREA)
SE7207224A 1971-06-10 1972-06-01 SOUND DETERMINATION SYSTEM SE380418B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15179071A 1971-06-10 1971-06-10

Publications (1)

Publication Number Publication Date
SE380418B true SE380418B (en) 1975-11-03

Family

ID=22540247

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7207224A SE380418B (en) 1971-06-10 1972-06-01 SOUND DETERMINATION SYSTEM

Country Status (6)

Country Link
US (1) US3697692A (en)
JP (1) JPS5119762B1 (en)
DE (1) DE2228274A1 (en)
FR (1) FR2140416A2 (en)
GB (1) GB1367705A (en)
SE (1) SE380418B (en)

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US3958085A (en) * 1971-09-20 1976-05-18 The Magnavox Company Compatible 4-2-4 encoding-decoding system
US3892917A (en) * 1971-10-07 1975-07-01 Nippon Musical Instruments Mfg Speaker system for multichannel stereosignal reproduction
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US3889061A (en) * 1971-12-21 1975-06-10 Sansui Electric Co Four-channel reproducing system
US3818136A (en) * 1972-04-27 1974-06-18 Zenith Radio Corp Four-channel front-to-back balance control
US4034158A (en) * 1972-12-05 1977-07-05 Britton Berdette O Quadraphonic passive four-channel decoder
US3919478A (en) * 1974-01-17 1975-11-11 Zenith Radio Corp Passive four-channel decoder
US4002835A (en) * 1975-06-06 1977-01-11 Bumber Roger L Multi-channel decoding circuit for two-channel audio systems
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US4308423A (en) * 1980-03-12 1981-12-29 Cohen Joel M Stereo image separation and perimeter enhancement
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US4489432A (en) * 1982-05-28 1984-12-18 Polk Audio, Inc. Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
US4497064A (en) * 1982-08-05 1985-01-29 Polk Audio, Inc. Method and apparatus for reproducing sound having an expanded acoustic image
US5412731A (en) * 1982-11-08 1995-05-02 Desper Products, Inc. Automatic stereophonic manipulation system and apparatus for image enhancement
US4612663A (en) * 1984-03-26 1986-09-16 Holbrook Kyle A Multichannel audio reproduction system
US4569074A (en) * 1984-06-01 1986-02-04 Polk Audio, Inc. Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
US4837825A (en) * 1987-02-28 1989-06-06 Shivers Clarence L Passive ambience recovery system for the reproduction of sound
US4759066A (en) * 1987-05-27 1988-07-19 Polk Investment Corporation Sound system with isolation of dimensional sub-speakers
US4819269A (en) * 1987-07-21 1989-04-04 Hughes Aircraft Company Extended imaging split mode loudspeaker system
US5136651A (en) * 1987-10-15 1992-08-04 Cooper Duane H Head diffraction compensated stereo system
US4975954A (en) * 1987-10-15 1990-12-04 Cooper Duane H Head diffraction compensated stereo system with optimal equalization
US4910779A (en) * 1987-10-15 1990-03-20 Cooper Duane H Head diffraction compensated stereo system with optimal equalization
US5034983A (en) * 1987-10-15 1991-07-23 Cooper Duane H Head diffraction compensated stereo system
US4882753A (en) * 1988-01-19 1989-11-21 Shivers Clarence L Passive ambience recovery system for the reproduction of sound
JPH0623119Y2 (en) * 1989-01-24 1994-06-15 パイオニア株式会社 Surround stereo playback device
DE4030977A1 (en) * 1990-02-12 1991-08-14 Georg Diamantidis CIRCUIT ARRANGEMENT FOR MODIFYING THE OUTPUT SIGNALS OF A MULTI-CHANNEL ELECTROACOUSTIC DEVICE
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US5386473A (en) * 1994-01-21 1995-01-31 Harrison; Robert W. Passive surround sound circuit
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US5841879A (en) * 1996-11-21 1998-11-24 Sonics Associates, Inc. Virtually positioned head mounted surround sound system
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US5594801A (en) * 1994-05-26 1997-01-14 Mcshane; Charles L. Ambient expansion loudspeaker system
KR960018792U (en) * 1994-11-07 1996-06-19 김만호 Speaker connector of sound reproduction system
US5661808A (en) * 1995-04-27 1997-08-26 Srs Labs, Inc. Stereo enhancement system
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US5850453A (en) 1995-07-28 1998-12-15 Srs Labs, Inc. Acoustic correction apparatus
US6118876A (en) * 1995-09-07 2000-09-12 Rep Investment Limited Liability Company Surround sound speaker system for improved spatial effects
US5930370A (en) * 1995-09-07 1999-07-27 Rep Investment Limited Liability In-home theater surround sound speaker system
US5708719A (en) * 1995-09-07 1998-01-13 Rep Investment Limited Liability Company In-home theater surround sound speaker system
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US6281749B1 (en) 1997-06-17 2001-08-28 Srs Labs, Inc. Sound enhancement system
US7031474B1 (en) 1999-10-04 2006-04-18 Srs Labs, Inc. Acoustic correction apparatus
US7277767B2 (en) * 1999-12-10 2007-10-02 Srs Labs, Inc. System and method for enhanced streaming audio
US7076071B2 (en) * 2000-06-12 2006-07-11 Robert A. Katz Process for enhancing the existing ambience, imaging, depth, clarity and spaciousness of sound recordings
US6993141B2 (en) * 2001-09-28 2006-01-31 Audio Products International Corp. System for distributing a signal between loudspeaker drivers
US7567845B1 (en) * 2002-06-04 2009-07-28 Creative Technology Ltd Ambience generation for stereo signals
US7970144B1 (en) 2003-12-17 2011-06-28 Creative Technology Ltd Extracting and modifying a panned source for enhancement and upmix of audio signals
US20050152556A1 (en) * 2004-01-09 2005-07-14 Masonware Partners Llc Passive surround sound adapter
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US8013675B2 (en) 2007-06-19 2011-09-06 Parkervision, Inc. Combiner-less multiple input single output (MISO) amplification with blended control
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
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US8315336B2 (en) 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
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EP2494792B1 (en) * 2009-10-27 2014-08-06 Phonak AG Speech enhancement method and system
US9154897B2 (en) 2011-01-04 2015-10-06 Dts Llc Immersive audio rendering system
WO2012139126A1 (en) 2011-04-08 2012-10-11 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2012167111A2 (en) 2011-06-02 2012-12-06 Parkervision, Inc. Antenna control
US9094742B2 (en) 2012-07-24 2015-07-28 Fox Filmed Entertainment Event drivable N X M programmably interconnecting sound mixing device and method for use thereof
US10149058B2 (en) 2013-03-15 2018-12-04 Richard O'Polka Portable sound system
WO2014144968A1 (en) 2013-03-15 2014-09-18 O'polka Richard Portable sound system
WO2014190140A1 (en) 2013-05-23 2014-11-27 Alan Kraemer Headphone audio enhancement system
CN106415435B (en) 2013-09-17 2020-08-11 帕克维辛股份有限公司 Method, apparatus and system for presenting information bearing time function
USD740784S1 (en) 2014-03-14 2015-10-13 Richard O'Polka Portable sound device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932325A (en) * 1972-07-27 1974-03-25

Also Published As

Publication number Publication date
JPS5119762B1 (en) 1976-06-19
GB1367705A (en) 1974-09-18
FR2140416A2 (en) 1973-01-19
US3697692A (en) 1972-10-10
DE2228274A1 (en) 1972-12-28

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