NL7001421A - - Google Patents
Info
- Publication number
- NL7001421A NL7001421A NL7001421A NL7001421A NL7001421A NL 7001421 A NL7001421 A NL 7001421A NL 7001421 A NL7001421 A NL 7001421A NL 7001421 A NL7001421 A NL 7001421A NL 7001421 A NL7001421 A NL 7001421A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
- H04R1/347—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers for obtaining a phase-shift between the front and back acoustic wave
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7001421A NL7001421A (cg-RX-API-DMAC10.html) | 1970-01-31 | 1970-01-31 | |
| DE19712100884 DE2100884C3 (de) | 1970-01-31 | 1971-01-09 | Lautsprecheranordnung mit einer kardioidförmigen Richtcharakteristik |
| US00105908A US3739096A (en) | 1970-01-31 | 1971-01-12 | Loudspeaker system having a cardioid directional response pattern |
| FR7102661A FR2077430B1 (cg-RX-API-DMAC10.html) | 1970-01-31 | 1971-01-27 | |
| AT68371A AT308863B (de) | 1970-01-31 | 1971-01-28 | Lautsprecheranordnung mit einer kardioidförmigen Richtcharakteristik |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7001421A NL7001421A (cg-RX-API-DMAC10.html) | 1970-01-31 | 1970-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7001421A true NL7001421A (cg-RX-API-DMAC10.html) | 1971-08-03 |
Family
ID=19809220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7001421A NL7001421A (cg-RX-API-DMAC10.html) | 1970-01-31 | 1970-01-31 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3739096A (cg-RX-API-DMAC10.html) |
| AT (1) | AT308863B (cg-RX-API-DMAC10.html) |
| FR (1) | FR2077430B1 (cg-RX-API-DMAC10.html) |
| NL (1) | NL7001421A (cg-RX-API-DMAC10.html) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921016A (en) * | 1973-12-12 | 1975-11-18 | Proctor & Assoc Co | Sonic signal generator and housing |
| HU171882B (hu) * | 1975-10-22 | 1978-04-28 | Elektroakusztikai Gyar | Napravlennyj ehlektroakusticheskij preobrazovatel', glavnym obrazom kardioidnyj zvukovoj izluchatel' |
| US4421957A (en) * | 1981-06-15 | 1983-12-20 | Bell Telephone Laboratories, Incorporated | End-fire microphone and loudspeaker structures |
| FR2668015B1 (fr) * | 1990-10-16 | 1993-07-30 | Piccfaluga Pierre | Procede pour ameliorer la qualite de la restitution d'une ambiance sonore, et appareil de mise en óoeuvre comportant au moins un haut-parleur emettant dans trois directions. |
| JP3127066B2 (ja) * | 1992-10-30 | 2001-01-22 | インターナショナル・ビジネス・マシーンズ・コーポレ−ション | パーソナル・マルチメディア・スピーカ・システム |
| US5742690A (en) * | 1994-05-18 | 1998-04-21 | International Business Machine Corp. | Personal multimedia speaker system |
| US5552569A (en) * | 1995-03-08 | 1996-09-03 | Sapkowski; Mechislao | Exponential multi-ported acoustic enclosure |
| US5809150A (en) * | 1995-06-28 | 1998-09-15 | Eberbach; Steven J. | Surround sound loudspeaker system |
| MX2011009819A (es) * | 2009-03-20 | 2012-01-20 | Meyer Sound Lab Inc | Altavoz con control direccional de baja frecuencia pasiva. |
| US8666107B2 (en) * | 2012-04-11 | 2014-03-04 | Cheng Uei Precision Industry Co., Ltd. | Loudspeaker |
| US9307309B2 (en) * | 2014-01-13 | 2016-04-05 | Rockwell Automation Technologies, Inc. | Stack light with in-line sound module |
| US10123111B2 (en) | 2016-06-03 | 2018-11-06 | Fulcrum Acoustic, LLC | Passive cardioid speaker |
| US10422821B2 (en) | 2017-04-17 | 2019-09-24 | Rockwell Automation Technologies, Inc. | System and method of identifying a module in a stack light |
| US11102570B2 (en) | 2019-06-11 | 2021-08-24 | Bose Corporation | Auto-configurable bass loudspeaker |
| US11153680B2 (en) | 2020-02-13 | 2021-10-19 | Bose Corporation | Stackable loudspeakers |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB388348A (en) * | 1932-10-26 | 1933-02-23 | Gen Electric Co Ltd | Improvements in loudspeakers |
| DE968490C (de) * | 1949-06-05 | 1958-02-27 | Siemens Ag | Aus mehreren in einer Reihe in eine gemeinsame lattenartige Schallwand eingebauten Lautsprechern bestehende Lautsprechergruppenanordnung |
-
1970
- 1970-01-31 NL NL7001421A patent/NL7001421A/xx unknown
-
1971
- 1971-01-12 US US00105908A patent/US3739096A/en not_active Expired - Lifetime
- 1971-01-27 FR FR7102661A patent/FR2077430B1/fr not_active Expired
- 1971-01-28 AT AT68371A patent/AT308863B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2077430B1 (cg-RX-API-DMAC10.html) | 1974-04-26 |
| DE2100884B2 (de) | 1976-07-22 |
| DE2100884A1 (cg-RX-API-DMAC10.html) | 1971-08-12 |
| US3739096A (en) | 1973-06-12 |
| AT308863B (de) | 1973-07-25 |
| FR2077430A1 (cg-RX-API-DMAC10.html) | 1971-10-22 |