DK450874A - - Google Patents
Info
- Publication number
- DK450874A DK450874A DK450874A DK450874A DK450874A DK 450874 A DK450874 A DK 450874A DK 450874 A DK450874 A DK 450874A DK 450874 A DK450874 A DK 450874A DK 450874 A DK450874 A DK 450874A
- Authority
- DK
- Denmark
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
- H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7311562A SE387512B (sv) | 1973-08-24 | 1973-08-24 | Hogtalare for sterofonisk ljudatergivningsanleggning, samt av tva sadana hogtalare bestaende hogtalarpar |
Publications (3)
Publication Number | Publication Date |
---|---|
DK450874A true DK450874A (de) | 1975-04-21 |
DK138570B DK138570B (da) | 1978-09-25 |
DK138570C DK138570C (de) | 1979-02-26 |
Family
ID=20318328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK450874AA DK138570B (da) | 1973-08-24 | 1974-08-23 | Højttaleranordning. |
Country Status (10)
Country | Link |
---|---|
US (1) | US4006311A (de) |
JP (1) | JPS5734717B2 (de) |
CA (1) | CA1011656A (de) |
DE (1) | DE2439934B2 (de) |
DK (1) | DK138570B (de) |
FR (1) | FR2241939B1 (de) |
GB (1) | GB1484633A (de) |
IT (1) | IT1020161B (de) |
NL (1) | NL165024C (de) |
SE (1) | SE387512B (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2801227C3 (de) * | 1978-01-12 | 1982-06-24 | Hans Deutsch Akustikforschung und Lautsprecherentwicklung GmbH, 5020 Salzburg | Lautsprecherbox mit Hornresonator |
US4284166A (en) * | 1979-04-13 | 1981-08-18 | Gale George A | Port devices for bass-reflex speaker enclosures |
US4410063A (en) * | 1981-03-04 | 1983-10-18 | Onkyo Kabushiki Kaisha | Loudspeaker system |
JPS5829291A (ja) * | 1981-08-13 | 1983-02-21 | Victor Co Of Japan Ltd | スピ−カシステム |
JPS5844889A (ja) * | 1981-09-11 | 1983-03-15 | Victor Co Of Japan Ltd | スピ−カシステム |
SE447438B (sv) * | 1981-11-26 | 1986-11-10 | Stig Carlsson | Hogtalare |
SE447780B (sv) * | 1981-11-26 | 1986-12-08 | Stig Carlsson | Hogtalare med en ljudabsorbent |
DE3382223D1 (de) * | 1983-09-06 | 1991-04-25 | Henry Oliver Wolcott | Lautsprecherstruktur. |
US4882760A (en) * | 1983-12-02 | 1989-11-21 | Yee Raymond M | Sound reproduction system |
WO1985002513A1 (en) * | 1983-12-02 | 1985-06-06 | Yee Raymond M | Sound reproduction system |
US4713836A (en) * | 1984-07-06 | 1987-12-15 | Nec Corporation | Telephone set structure having a member capable of being inserted in invertible position |
US4723289A (en) * | 1986-03-17 | 1988-02-02 | Bose Corporation | Stereo electroacoustic transducing |
US4761921A (en) * | 1987-01-16 | 1988-08-09 | Nelson Philip H | Sound-masking system for core modules used in an office |
US4787348A (en) * | 1988-01-25 | 1988-11-29 | Parker Automotive Corporation | Carbon-cleaning apparatus for diesel engines |
US4928788A (en) * | 1989-06-12 | 1990-05-29 | Erickson Jon B | Ported automotive speaker enclosure apparatus and method |
DE4036152A1 (de) * | 1990-11-14 | 1992-05-21 | Dieter Lang | Lautsprecheranordnung |
US5307082A (en) * | 1992-10-28 | 1994-04-26 | North Carolina State University | Electrostatically shaped membranes |
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 |
US6665412B1 (en) | 1997-01-10 | 2003-12-16 | Sony Corporation | Speaker device |
JP3992974B2 (ja) * | 2001-01-22 | 2007-10-17 | 義人 丸尾 | スピーカー装置 |
US20040184628A1 (en) * | 2003-03-20 | 2004-09-23 | Niro1.Com Inc. | Speaker apparatus |
US6940990B2 (en) * | 2003-07-14 | 2005-09-06 | Wan-Fang Huang | Multi-channel audio center speaker device |
JP4878989B2 (ja) * | 2006-11-14 | 2012-02-15 | ティーオーエー株式会社 | スピーカシステム |
EP2123106B1 (de) * | 2007-03-09 | 2011-12-21 | Robert Bosch GmbH | Lautsprechervorrichtung zum abstrahlen von schallwellen in einer hemisphäre |
KR20100068247A (ko) | 2007-08-14 | 2010-06-22 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 좁고 넓은 지향성 스피커들을 포함하는 오디오 재생 시스템 |
US8175304B1 (en) * | 2008-02-12 | 2012-05-08 | North Donald J | Compact loudspeaker system |
EP2180721A1 (de) * | 2008-10-21 | 2010-04-28 | Lautsprecher Teufel GmbH | Flachmembranlautsprecher |
US9264813B2 (en) | 2010-03-04 | 2016-02-16 | Logitech, Europe S.A. | Virtual surround for loudspeakers with increased constant directivity |
US8542854B2 (en) | 2010-03-04 | 2013-09-24 | Logitech Europe, S.A. | Virtual surround for loudspeakers with increased constant directivity |
EP2577991B1 (de) * | 2010-06-07 | 2015-12-23 | Libratone A/S | Kompakter eigenständiger stereolautsprecher |
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 |
USD740784S1 (en) | 2014-03-14 | 2015-10-13 | Richard O'Polka | Portable sound device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3104729A (en) * | 1963-09-24 | Stereophonic sound reproducing loudspeaker system | ||
NL97567C (de) * | 1953-10-02 | |||
CH325519A (de) * | 1954-12-01 | 1957-11-15 | Zoellig Karl | Für Schallwiedergabe eingerichtetes Gerät mit mindestens zwei Lautsprechern verschiedener Beschallungsrichtung |
GB891014A (en) * | 1959-08-19 | 1962-03-07 | Decca Record Co Ltd | Improvements in or relating to sterepohonic sound reproducing apparatus |
NL298920A (de) * | 1962-10-12 | |||
US3627948A (en) * | 1969-08-18 | 1971-12-14 | Electro Voice | Stereo loudspeaker system |
-
1973
- 1973-08-24 SE SE7311562A patent/SE387512B/xx unknown
-
1974
- 1974-08-16 CA CA207,227A patent/CA1011656A/en not_active Expired
- 1974-08-19 GB GB36337/74A patent/GB1484633A/en not_active Expired
- 1974-08-20 DE DE19742439934 patent/DE2439934B2/de active Granted
- 1974-08-23 IT IT26563/74A patent/IT1020161B/it active
- 1974-08-23 JP JP9627574A patent/JPS5734717B2/ja not_active Expired
- 1974-08-23 DK DK450874AA patent/DK138570B/da unknown
- 1974-08-23 FR FR7428990A patent/FR2241939B1/fr not_active Expired
- 1974-08-26 NL NL7411351.A patent/NL165024C/xx not_active IP Right Cessation
-
1976
- 1976-02-11 US US05/657,226 patent/US4006311A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2241939B1 (de) | 1980-04-04 |
JPS5734717B2 (de) | 1982-07-24 |
SE7311562L (de) | 1975-02-25 |
DE2439934C3 (de) | 1978-06-15 |
DK138570B (da) | 1978-09-25 |
SE387512B (sv) | 1976-09-06 |
JPS5073623A (de) | 1975-06-17 |
FR2241939A1 (de) | 1975-03-21 |
IT1020161B (it) | 1977-12-20 |
AU7265174A (en) | 1976-02-26 |
DE2439934A1 (de) | 1975-03-27 |
DK138570C (de) | 1979-02-26 |
US4006311A (en) | 1977-02-01 |
CA1011656A (en) | 1977-06-07 |
NL165024B (nl) | 1980-09-15 |
DE2439934B2 (de) | 1977-10-27 |
GB1484633A (en) | 1977-09-01 |
NL165024C (nl) | 1981-02-16 |
NL7411351A (nl) | 1975-02-26 |