FR2183974A1 - - Google Patents

Info

Publication number
FR2183974A1
FR2183974A1 FR7316629A FR7316629A FR2183974A1 FR 2183974 A1 FR2183974 A1 FR 2183974A1 FR 7316629 A FR7316629 A FR 7316629A FR 7316629 A FR7316629 A FR 7316629A FR 2183974 A1 FR2183974 A1 FR 2183974A1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7316629A
Other languages
French (fr)
Other versions
FR2183974B1 (de
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of FR2183974A1 publication Critical patent/FR2183974A1/fr
Application granted granted Critical
Publication of FR2183974B1 publication Critical patent/FR2183974B1/fr
Expired legal-status Critical Current

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
FR7316629A 1972-05-09 1973-05-09 Expired FR2183974B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00251742A US3824342A (en) 1972-05-09 1972-05-09 Omnidirectional sound field reproducing system

Publications (2)

Publication Number Publication Date
FR2183974A1 true FR2183974A1 (de) 1973-12-21
FR2183974B1 FR2183974B1 (de) 1978-02-10

Family

ID=22953214

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7316629A Expired FR2183974B1 (de) 1972-05-09 1973-05-09

Country Status (15)

Country Link
US (1) US3824342A (de)
JP (1) JPS5215201B2 (de)
AT (1) AT350294B (de)
BR (1) BR7303322D0 (de)
CA (1) CA976090A (de)
CH (1) CH565494A5 (de)
DD (1) DD104673A5 (de)
DE (1) DE2317124A1 (de)
DK (1) DK137110B (de)
ES (1) ES414567A1 (de)
FR (1) FR2183974B1 (de)
GB (1) GB1432153A (de)
IT (1) IT984179B (de)
NL (1) NL7306404A (de)
SE (1) SE378969B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345047A1 (fr) * 1976-03-15 1977-10-14 Nat Res Dev Systemes de reproduction des sons

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970788A (en) * 1971-10-06 1976-07-20 Cooper Duane H Monaural and stereo compatible multidirectional sound matrixing
GB1494751A (en) * 1974-03-26 1977-12-14 Nat Res Dev Sound reproduction systems
US3940559A (en) * 1974-04-18 1976-02-24 Cbs Inc. Compatible four channel recording and reproducing system
GB1512514A (en) * 1974-07-12 1978-06-01 Nat Res Dev Microphone assemblies
JPS5187002A (en) * 1975-01-29 1976-07-30 Nippon Telegraph & Telephone 4 chanerusutereohoshiki
JPS5230402A (en) * 1975-09-04 1977-03-08 Victor Co Of Japan Ltd Multichannel stereo system
US4074084A (en) * 1975-11-05 1978-02-14 Berg Johannes C M Van Den Method and apparatus for receiving sound intended for stereophonic reproduction
GB1548674A (en) * 1976-07-01 1979-07-18 Nat Res Dev Sound reproduction systems
US4236039A (en) * 1976-07-19 1980-11-25 National Research Development Corporation Signal matrixing for directional reproduction of sound
US4392019A (en) * 1980-12-19 1983-07-05 Independent Broadcasting Authority Surround sound system
HU190912B (en) * 1983-09-07 1986-12-28 Polyak,Gabor,Hu Method and apparatus for making stereoscopic sound effects
US6041127A (en) * 1997-04-03 2000-03-21 Lucent Technologies Inc. Steerable and variable first-order differential microphone array
ITMI20020566A1 (it) * 2002-03-18 2003-09-18 Daniele Ramenzoni Dispositivo per captare movimenti anche piccoli nell'aria e nei fluidi adatto per applicazioni cibernetiche e di laboratorio come trasduttor
US8130977B2 (en) * 2005-12-27 2012-03-06 Polycom, Inc. Cluster of first-order microphones and method of operation for stereo input of videoconferencing system
TWI498014B (zh) * 2012-07-11 2015-08-21 Univ Nat Cheng Kung 建立最佳化揚聲器聲場之方法
US10631085B2 (en) 2018-05-07 2020-04-21 Crestron Electronics, Inc. Microphone array system with Ethernet connection

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746792A (en) * 1968-01-11 1973-07-17 P Scheiber Multidirectional sound system
GB1359509A (en) * 1970-06-15 1974-07-10 Scheiber P Decoder apparatus for use in a multidirectional sound system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PUBLICATION US AN AUDIO ENGINEERING SOCIETY PREPRINT, NO. 849 C-2 , PRESENTEE AU "42ND CONVENTION", 2 A 5 MAI 1972. ARTICLE "DISCRETE-MATRIX MULTICHANNEL STEREO" DE COOPER ET SHIGA *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345047A1 (fr) * 1976-03-15 1977-10-14 Nat Res Dev Systemes de reproduction des sons

Also Published As

Publication number Publication date
BR7303322D0 (pt) 1974-07-11
DE2317124A1 (de) 1973-11-22
JPS4955301A (de) 1974-05-29
DD104673A5 (de) 1974-03-12
NL7306404A (de) 1973-11-13
CH565494A5 (de) 1975-08-15
ES414567A1 (es) 1976-02-01
FR2183974B1 (de) 1978-02-10
US3824342A (en) 1974-07-16
CA976090A (en) 1975-10-14
AT350294B (de) 1979-05-25
JPS5215201B2 (de) 1977-04-27
DK137110C (de) 1978-06-19
AU5511673A (en) 1974-11-07
ATA410273A (de) 1978-10-15
SE378969B (de) 1975-09-15
GB1432153A (en) 1976-04-14
DK137110B (da) 1978-01-16
IT984179B (it) 1974-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse