IT7825723A0 - Dispositivo antiriverberazione. - Google Patents

Dispositivo antiriverberazione.

Info

Publication number: IT7825723A0
Authority: IT; Italy
Prior art keywords: reverberation device; reverberation
Prior art date: 1977-07-18

Application number

IT7825723A

Other languages

English (en)

Other versions

IT1097956B (it

Original Assignee

Western Electric Co

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.)

1977-07-18

Filing date

1978-07-14

Publication date

1978-07-14

1978-07-14 Application filed by Western Electric Co filed Critical Western Electric Co

1978-07-14 Publication of IT7825723A0 publication Critical patent/IT7825723A0/it

1985-08-31 Application granted granted Critical

1985-08-31 Publication of IT1097956B publication Critical patent/IT1097956B/it

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/004—Monitoring arrangements; Testing arrangements for microphones
- H04R29/005—Microphone arrays
- H04R29/006—Microphone matching
- 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
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/403—Linear arrays of transducers

Landscapes

Health & Medical Sciences (AREA)
General Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Circuit For Audible Band Transducer (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Interconnected Communication Systems, Intercoms, And Interphones (AREA)

IT25723/78A 1977-07-18 1978-07-14 Dispositivo antiriverberazione IT1097956B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/816,525 US4087633A (en)	1977-07-18	1977-07-18	Dereverberation system

Publications (2)

Publication Number	Publication Date
IT7825723A0 true IT7825723A0 (it)	1978-07-14
IT1097956B IT1097956B (it)	1985-08-31

Family

ID=25220877

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT25723/78A IT1097956B (it)	1977-07-18	1978-07-14	Dispositivo antiriverberazione

Country Status (7)

Country	Link
US (1)	US4087633A (it)
JP (1)	JPS5421801A (it)
BE (1)	BE869004A (it)
FR (1)	FR2398426A1 (it)
IT (1)	IT1097956B (it)
NL (1)	NL7807476A (it)
WO (1)	WO1979000046A1 (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4485484A (en) *	1982-10-28	1984-11-27	At&T Bell Laboratories	Directable microphone system
US5293578A (en) *	1989-07-19	1994-03-08	Fujitso Ten Limited	Noise reducing device
JP3046203B2 (ja) *	1994-05-18	2000-05-29	三菱電機株式会社	ハンズフリー通話装置
US5774562A (en) *	1996-03-25	1998-06-30	Nippon Telegraph And Telephone Corp.	Method and apparatus for dereverberation
US7319770B2 (en) *	2004-04-30	2008-01-15	Phonak Ag	Method of processing an acoustic signal, and a hearing instrument
US7844059B2 (en) *	2005-03-16	2010-11-30	Microsoft Corporation	Dereverberation of multi-channel audio streams
WO2007100137A1 (ja) *	2006-03-03	2007-09-07	Nippon Telegraph And Telephone Corporation	残響除去装置、残響除去方法、残響除去プログラム及び記録媒体
US8867754B2 (en) *	2009-02-13	2014-10-21	Honda Motor Co., Ltd.	Dereverberation apparatus and dereverberation method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3662108A (en) *	1970-06-08	1972-05-09	Bell Telephone Labor Inc	Apparatus for reducing multipath distortion of signals utilizing cepstrum technique
US3794766A (en) *	1973-02-08	1974-02-26	Bell Telephone Labor Inc	Delay equalizing circuit for an audio system using multiple microphones
AT337280B (de) *	1974-10-24	1977-06-27	Saad Zaghloul Mohamed Gabr	Schaltungsanordnung zur unterdruckung akustischer ruckkopplungen
DE2541032A1 (de) *	1975-09-15	1977-03-17	Sigismund Dr Ing Entleutner	Elektrische schaltung zur elimination oder verzerrung von akustischen stoersignalen, die phasenverschoben von zwei oder mehreren mikrofonen aufgenommen werden
US4069395A (en) *	1977-04-27	1978-01-17	Bell Telephone Laboratories, Incorporated	Analog dereverberation system
US4066842A (en) *	1977-04-27	1978-01-03	Bell Telephone Laboratories, Incorporated	Method and apparatus for cancelling room reverberation and noise pickup

1977
- 1977-07-18 US US05/816,525 patent/US4087633A/en not_active Expired - Lifetime
1978
- 1978-07-07 WO PCT/US1978/000033 patent/WO1979000046A1/en unknown
- 1978-07-11 NL NL7807476A patent/NL7807476A/xx not_active Application Discontinuation
- 1978-07-13 FR FR7821025A patent/FR2398426A1/fr active Pending
- 1978-07-14 BE BE189290A patent/BE869004A/xx unknown
- 1978-07-14 IT IT25723/78A patent/IT1097956B/it active
- 1978-07-18 JP JP8685578A patent/JPS5421801A/ja active Pending

Also Published As

Publication number	Publication date
WO1979000046A1 (en)	1979-02-08
US4087633A (en)	1978-05-02
IT1097956B (it)	1985-08-31
JPS5421801A (en)	1979-02-19
BE869004A (fr)	1978-11-03
NL7807476A (nl)	1979-01-22
FR2398426A1 (fr)	1979-02-16

Publication	Publication Date	Title
NL7806723A (nl)	1978-12-27	Hemodialysatorinrichting.
NL7802260A (nl)	1979-05-30	Halfgeleiderinrichting.
NO144435C (no)	1981-08-26	Forbindelsesanordning.
NL7812026A (nl)	1979-06-19	Veldeffektinrichting.
NL7808105A (nl)	1979-02-06	Ladingsgekoppelde inrichting.
NL7801017A (nl)	1978-07-31	Aansluitinrichting.
NO153149C (no)	1986-01-22	Frigjoerbar forbindelsesanordning.
BE865203A (fr)	1978-09-22	Hogedruk-kwikdampontladingslamp.
NL7807236A (nl)	1979-01-09	Halfgeleiderinrichting.
NL7700879A (nl)	1978-08-01	Halfgeleiderinrichting.
NL7805992A (nl)	1978-12-05	Halfgeleiderinrichting.
NL7802222A (nl)	1978-09-05	Halfgeleiderinrichting.
NL7806730A (nl)	1978-12-28	Draaiinrichting.
NL7713758A (nl)	1979-06-15	Halfgeleiderinrichting.
NO782252L (no)	1979-01-03	Tuftenaalanordning.
NL185750C (nl)	1990-07-16	Computertomografische inrichting.
NL189173C (nl)	1993-02-01	Instelinrichting.
NL7801082A (nl)	1978-08-04	Halfgeleiderinrichting.
NL7812462A (nl)	1979-07-03	Halfgeleiderinrichting.
NL7712482A (nl)	1979-05-16	Peilinrichting.
NO781237L (no)	1978-12-12	Lokaliseringsanordning.
IT7825723A0 (it)	1978-07-14	Dispositivo antiriverberazione.
NL7705729A (nl)	1978-11-28	Halfgeleiderinrichting.
NL7806714A (nl)	1979-01-29	Hef-kantelinrichting.
NO781886L (no)	1978-12-05	Fastspenningsanordning.