IT951373B - MULTIPHONE PLAYBACK DEVICE - Google Patents

MULTIPHONE PLAYBACK DEVICE

Info

Publication number
IT951373B
IT951373B IT23094/72A IT2309472A IT951373B IT 951373 B IT951373 B IT 951373B IT 23094/72 A IT23094/72 A IT 23094/72A IT 2309472 A IT2309472 A IT 2309472A IT 951373 B IT951373 B IT 951373B
Authority
IT
Italy
Prior art keywords
multiphone
playback device
playback
multiphone playback
Prior art date
Application number
IT23094/72A
Other languages
Italian (it)
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of IT951373B publication Critical patent/IT951373B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • 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)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
IT23094/72A 1971-04-13 1972-04-13 MULTIPHONE PLAYBACK DEVICE IT951373B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46023300A JPS5119761B1 (en) 1971-04-13 1971-04-13

Publications (1)

Publication Number Publication Date
IT951373B true IT951373B (en) 1973-06-30

Family

ID=12106736

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23094/72A IT951373B (en) 1971-04-13 1972-04-13 MULTIPHONE PLAYBACK DEVICE

Country Status (8)

Country Link
US (1) US3725586A (en)
JP (1) JPS5119761B1 (en)
CA (1) CA969867A (en)
DE (1) DE2217740A1 (en)
FR (1) FR2132897B1 (en)
GB (1) GB1367191A (en)
IT (1) IT951373B (en)
NL (2) NL172815C (en)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313962B2 (en) * 1971-12-21 1978-05-13
JPS5210364B2 (en) * 1972-05-02 1977-03-23
JPS5645358B2 (en) * 1973-11-29 1981-10-26
US3969588A (en) * 1974-11-29 1976-07-13 Video And Audio Artistry Corporation Audio pan generator
JPS51132803A (en) * 1975-04-17 1976-11-18 Nippon Hoso Kyokai <Nhk> Sound field expander
US4053711A (en) * 1976-04-26 1977-10-11 Audio Pulse, Inc. Simulation of reverberation in audio signals
JPS53114201U (en) * 1977-02-18 1978-09-11
US4167651A (en) * 1977-09-20 1979-09-11 O. C. Electronics, Inc. Mixing two signals derived from an audio source without oscillation
US4191852A (en) * 1978-05-16 1980-03-04 Shin-Shirasuna Electric Corporation Stereophonic sense enhancing apparatus
DE2822735C2 (en) * 1978-05-24 1985-04-25 Shin-Shirasuna Electric Corp., Nagoya, Aichi Stereophonic playback device
US4352953A (en) * 1978-09-11 1982-10-05 Samuel Emmer Multichannel non-discrete audio reproduction system
US4303800A (en) * 1979-05-24 1981-12-01 Analog And Digital Systems, Inc. Reproducing multichannel sound
US4403112A (en) * 1981-05-18 1983-09-06 Modafferi Acoustical Systems, Ltd. Phase shift low frequency loudspeaker system
US4567607A (en) * 1983-05-03 1986-01-28 Stereo Concepts, Inc. Stereo image recovery
US4748669A (en) * 1986-03-27 1988-05-31 Hughes Aircraft Company Stereo enhancement system
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
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
US4910778A (en) * 1987-10-16 1990-03-20 Barton Geoffrey J Signal enhancement processor for stereo system
JP2897586B2 (en) * 1993-03-05 1999-05-31 ヤマハ株式会社 Sound field control device
US5386473A (en) * 1994-01-21 1995-01-31 Harrison; Robert W. Passive surround sound circuit
US5666422A (en) * 1994-05-18 1997-09-09 Harrison; Robert W. Remote speaker for surround-sound applications
DE4440014C2 (en) * 1994-11-09 2002-02-07 Deutsche Telekom Ag Method and device for multi-channel sound reproduction
US5661808A (en) 1995-04-27 1997-08-26 Srs Labs, Inc. Stereo enhancement system
US5970152A (en) * 1996-04-30 1999-10-19 Srs Labs, Inc. Audio enhancement system for use in a surround sound environment
US5912976A (en) * 1996-11-07 1999-06-15 Srs Labs, Inc. Multi-channel audio enhancement system for use in recording and playback and methods for providing same
US6281749B1 (en) 1997-06-17 2001-08-28 Srs Labs, Inc. Sound enhancement system
EP1125474A1 (en) * 1997-11-03 2001-08-22 Creative Technology Ltd. Pc surround sound circuit
US6421447B1 (en) * 1999-09-30 2002-07-16 Inno-Tech Co., Ltd. Method of generating surround sound with channels processing separately
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
US6829359B2 (en) * 2002-10-08 2004-12-07 Arilg Electronics Co, Llc Multispeaker sound imaging system
WO2005070097A2 (en) * 2004-01-09 2005-08-04 Masonware Partners, Llc Passive surround sound adapter
JP2007208679A (en) * 2006-02-02 2007-08-16 Matsushita Electric Ind Co Ltd Sound reproduction device
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
GB2485743B (en) * 2009-08-15 2015-07-22 Archiveades Georgiou A method of, and a system for, enabling a hearer to hear desired sound while also being able to be aware of ambient sound
US8571232B2 (en) * 2009-09-11 2013-10-29 Barry Stephen Goldfarb Apparatus and method for a complete audio signal
US8259960B2 (en) * 2009-09-11 2012-09-04 BSG Laboratory, LLC Phase layering apparatus and method for a complete audio signal
KR101624904B1 (en) 2009-11-09 2016-05-27 삼성전자주식회사 Apparatus and method for playing the multisound channel content using dlna in portable communication system
CN103329571B (en) 2011-01-04 2016-08-10 Dts有限责任公司 Immersion audio presentation systems
BE1020249A4 (en) * 2011-09-14 2013-07-02 Bilteryst Pierre Jean PROCESS FOR THE "AUTHENTIC" REPRODUCTION OF SOUND COMPOSITE SOUNDS COMPRISING GLOBALLY DETAILED IN SPECTROPHONY BY ELECTRO-ACOUSTIC RESONANCES
US9258664B2 (en) 2013-05-23 2016-02-09 Comhear, Inc. Headphone audio enhancement system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3586783A (en) * 1969-06-18 1971-06-22 David R Brickner Sound system with enhanced low frequency distribution
US3665105A (en) * 1970-03-09 1972-05-23 Univ Leland Stanford Junior Method and apparatus for simulating location and movement of sound
US3646574A (en) * 1970-05-25 1972-02-29 Howard S Holzer Compatible stereo generator
US3684835A (en) * 1970-07-29 1972-08-15 Parasound Inc Four channel stereo synthesizer
US3697692A (en) * 1971-06-10 1972-10-10 Dynaco Inc Two-channel,four-component stereophonic system

Also Published As

Publication number Publication date
CA969867A (en) 1975-06-24
FR2132897B1 (en) 1978-03-03
GB1367191A (en) 1974-09-18
NL172815B (en)
NL7204910A (en) 1972-10-17
US3725586A (en) 1973-04-03
DE2217740A1 (en) 1972-10-26
FR2132897A1 (en) 1972-11-24
NL172815C (en) 1983-10-17
JPS5119761B1 (en) 1976-06-19

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