NL53688C - - Google Patents
Info
- Publication number
- NL53688C NL53688C NL53688DA NL53688C NL 53688 C NL53688 C NL 53688C NL 53688D A NL53688D A NL 53688DA NL 53688 C NL53688 C NL 53688C
- Authority
- NL
- Netherlands
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
- H04R27/00—Public address systems
-
- 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
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1936T0046445 DE690437C (de) | 1936-02-18 | 1936-02-18 | Schalles in einem bestimmten Raumteil |
| DE486038X | 1936-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL53688C true NL53688C (hr) |
Family
ID=25944490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL53688D NL53688C (hr) | 1936-02-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2203715A (hr) |
| DE (1) | DE690437C (hr) |
| GB (1) | GB486038A (hr) |
| NL (1) | NL53688C (hr) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2544742A (en) * | 1946-12-31 | 1951-03-13 | Vibra Sonic Inc | Cubic loud-speaker cabinet |
| DE970013C (de) * | 1950-08-29 | 1958-08-14 | Siemens Ag | Einrichtung fuer Lautsprecher |
| DE969536C (de) * | 1952-10-08 | 1958-06-12 | Saba Gmbh | Anordnung fuer Schallstrahler |
| US3526718A (en) * | 1967-04-17 | 1970-09-01 | David L Beatty | Portable speaker assembly for large areas |
| US4596034A (en) * | 1981-01-02 | 1986-06-17 | Moncrieff J Peter | Sound reproduction system and method |
| US4554531A (en) * | 1982-12-27 | 1985-11-19 | Biersach James E | Omnidirectional siren |
| US4882760A (en) * | 1983-12-02 | 1989-11-21 | Yee Raymond M | Sound reproduction system |
| FR2628924B1 (fr) * | 1988-03-15 | 1991-08-30 | Baranes Roger | Enceintes acoustiques a directivites optimums adaptables en diffuseurs de son a cones deflecteurs |
| US4953223A (en) * | 1988-09-08 | 1990-08-28 | Householder George G | Speaker mounting system |
| GB2269960B (en) * | 1992-08-20 | 1996-03-27 | Canon Audio Ltd | Sound output system |
| DE69840513D1 (de) * | 1997-10-23 | 2009-03-12 | Panasonic Corp | Beschallungsanlage |
| US7688992B2 (en) * | 2005-09-12 | 2010-03-30 | Richard Aylward | Seat electroacoustical transducing |
| US8724827B2 (en) * | 2007-05-04 | 2014-05-13 | Bose Corporation | System and method for directionally radiating sound |
| US8325936B2 (en) * | 2007-05-04 | 2012-12-04 | Bose Corporation | Directionally radiating sound in a vehicle |
| US20080273722A1 (en) * | 2007-05-04 | 2008-11-06 | Aylward J Richard | Directionally radiating sound in a vehicle |
-
0
- NL NL53688D patent/NL53688C/xx active
-
1936
- 1936-02-18 DE DE1936T0046445 patent/DE690437C/de not_active Expired
- 1936-11-30 GB GB32804/36A patent/GB486038A/en not_active Expired
-
1937
- 1937-02-10 US US124998A patent/US2203715A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2203715A (en) | 1940-06-11 |
| GB486038A (en) | 1938-05-30 |
| DE690437C (de) | 1940-04-25 |