NL7509515A - Stereofoon geluidstelsel. - Google Patents

Stereofoon geluidstelsel.

Info

Publication number
NL7509515A
NL7509515A NL7509515A NL7509515A NL7509515A NL 7509515 A NL7509515 A NL 7509515A NL 7509515 A NL7509515 A NL 7509515A NL 7509515 A NL7509515 A NL 7509515A NL 7509515 A NL7509515 A NL 7509515A
Authority
NL
Netherlands
Prior art keywords
sound system
stereophone
stereophone sound
sound
Prior art date
Application number
NL7509515A
Other languages
English (en)
Other versions
NL187093B (nl
NL187093C (nl
Original Assignee
Dolby Laboratories 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10399782&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NL7509515(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Laboratories Inc filed Critical Dolby Laboratories Inc
Publication of NL7509515A publication Critical patent/NL7509515A/nl
Publication of NL187093B publication Critical patent/NL187093B/nl
Application granted granted Critical
Publication of NL187093C publication Critical patent/NL187093C/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
NLAANVRAGE7509515,A 1974-08-29 1975-08-08 Stereofoon geluidweergeefstelsel en werkwijze voor het tot stand brengen van een stereofonische geluidsreproductie. NL187093C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37897/74A GB1522135A (en) 1974-08-29 1974-08-29 Stereophonic sound system

Publications (3)

Publication Number Publication Date
NL7509515A true NL7509515A (nl) 1976-03-02
NL187093B NL187093B (nl) 1990-12-17
NL187093C NL187093C (nl) 1991-05-16

Family

ID=10399782

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7509515,A NL187093C (nl) 1974-08-29 1975-08-08 Stereofoon geluidweergeefstelsel en werkwijze voor het tot stand brengen van een stereofonische geluidsreproductie.

Country Status (6)

Country Link
US (1) US4074083A (nl)
JP (1) JPS5814799B2 (nl)
CA (1) CA1027053A (nl)
DE (2) DE2559593C3 (nl)
GB (1) GB1522135A (nl)
NL (1) NL187093C (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352953A (en) * 1978-09-11 1982-10-05 Samuel Emmer Multichannel non-discrete audio reproduction system

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006583B (en) * 1977-10-14 1982-04-28 Dolby Lab Licensing Corp Multi-channel sound systems
JPS54148501A (en) * 1978-03-16 1979-11-20 Akg Akustische Kino Geraete Device for reproducing at least 2 channels acoustic events transmitted in room
US4509184A (en) * 1982-03-18 1985-04-02 Pioneer Electronic Corporation Stereo sound system
JPS58147386U (ja) * 1982-03-26 1983-10-04 パイオニア株式会社 ステレオ再生装置
JPS5953000A (ja) * 1982-09-21 1984-03-27 Pioneer Electronic Corp ステレオ再生装置
CA1202571A (en) * 1982-11-15 1986-04-01 Emil L. Torick Triphonic sound system
JPS6123898U (ja) * 1984-07-20 1986-02-12 志都子 阿部 洋式トイレ簡易マツト
US4747142A (en) * 1985-07-25 1988-05-24 Tofte David A Three-track sterophonic system
DK152478C (da) * 1985-12-06 1988-07-25 Ole Sparkjaer Fremgangsmaade og kredsloeb til dekodning af fire kanalsignaler, som er matrixkodet og foreligger i form af et to-kanal signal
JPS62186590U (nl) * 1986-05-16 1987-11-27
US4862502A (en) * 1988-01-06 1989-08-29 Lexicon, Inc. Sound reproduction
US5136650A (en) * 1991-01-09 1992-08-04 Lexicon, Inc. Sound reproduction
US5708719A (en) * 1995-09-07 1998-01-13 Rep Investment Limited Liability Company 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
US5930370A (en) * 1995-09-07 1999-07-27 Rep Investment Limited Liability In-home theater surround sound speaker system
US5677957A (en) * 1995-11-13 1997-10-14 Hulsebus; Alan Audio circuit producing enhanced ambience
KR0175515B1 (ko) * 1996-04-15 1999-04-01 김광호 테이블 조사 방식의 스테레오 구현 장치와 방법
US5796844A (en) * 1996-07-19 1998-08-18 Lexicon Multichannel active matrix sound reproduction with maximum lateral separation
US5870480A (en) * 1996-07-19 1999-02-09 Lexicon Multichannel active matrix encoder and decoder with maximum lateral separation
US6624873B1 (en) 1998-05-05 2003-09-23 Dolby Laboratories Licensing Corporation Matrix-encoded surround-sound channels in a discrete digital sound format
US7542815B1 (en) 2003-09-04 2009-06-02 Akita Blue, Inc. Extraction of left/center/right information from two-channel stereo sources
WO2009086174A1 (en) 2007-12-21 2009-07-09 Srs Labs, Inc. System for adjusting perceived loudness of audio signals
JP4844622B2 (ja) * 2008-12-05 2011-12-28 ソニー株式会社 音量補正装置、音量補正方法、音量補正プログラムおよび電子機器、音響装置
US8538042B2 (en) * 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
JP5852325B2 (ja) * 2011-05-10 2016-02-03 日本放送協会 音像定位改善装置
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786894A (en) * 1953-05-29 1957-03-26 Rca Corp Stereophonic sound and rerecording system
US2819348A (en) * 1954-09-07 1958-01-07 Bell Telephone Labor Inc Stereophonic reproduction of sound
US3176072A (en) * 1960-04-21 1965-03-30 Muter Company Stereophonic reproduction system
US3417203A (en) * 1965-04-13 1968-12-17 Dynaco Inc Two-channel stereo system with derived center channel
US3646574A (en) * 1970-05-25 1972-02-29 Howard S Holzer Compatible stereo generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352953A (en) * 1978-09-11 1982-10-05 Samuel Emmer Multichannel non-discrete audio reproduction system

Also Published As

Publication number Publication date
GB1522135A (en) 1978-08-23
DE2536682C3 (de) 1979-05-17
DE2559593B2 (de) 1979-03-22
DE2559593C3 (de) 1979-11-22
NL187093B (nl) 1990-12-17
CA1027053A (en) 1978-02-28
NL187093C (nl) 1991-05-16
US4074083A (en) 1978-02-14
DE2536682A1 (de) 1976-05-20
JPS5152802A (nl) 1976-05-10
JPS5814799B2 (ja) 1983-03-22
DE2559593A1 (de) 1977-05-12
DE2536682B2 (de) 1978-09-21

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: DOLBY LABORATORIES LICENSING CORPORATION

BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Discontinued because of reaching the maximum lifetime of a patent

Free format text: 950808