JPS547571B2 - - Google Patents
Info
- Publication number
- JPS547571B2 JPS547571B2 JP6846275A JP6846275A JPS547571B2 JP S547571 B2 JPS547571 B2 JP S547571B2 JP 6846275 A JP6846275 A JP 6846275A JP 6846275 A JP6846275 A JP 6846275A JP S547571 B2 JPS547571 B2 JP S547571B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Steroid Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/477,383 US3930561A (en) | 1974-06-07 | 1974-06-07 | Low distortion pyramidal dispersion speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS518925A JPS518925A (https=) | 1976-01-24 |
| JPS547571B2 true JPS547571B2 (https=) | 1979-04-07 |
Family
ID=23895703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6846275A Expired JPS547571B2 (https=) | 1974-06-07 | 1975-06-06 |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3930561A (https=) |
| JP (1) | JPS547571B2 (https=) |
| BE (1) | BE825374A (https=) |
| CA (1) | CA1034874A (https=) |
| DE (1) | DE2504377A1 (https=) |
| DK (1) | DK691474A (https=) |
| ES (1) | ES435283A1 (https=) |
| FR (1) | FR2274100A1 (https=) |
| GB (1) | GB1494672A (https=) |
| IT (1) | IT1031207B (https=) |
| NL (1) | NL7500881A (https=) |
| NO (1) | NO138740C (https=) |
| SE (1) | SE399625B (https=) |
| ZA (1) | ZA7561B (https=) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4071112A (en) * | 1975-09-30 | 1978-01-31 | Electro-Voice, Incorporated | Horn loudspeaker |
| US4171734A (en) * | 1977-11-10 | 1979-10-23 | Beta Sound, Incorporated | Exponential horn speaker |
| US4176731A (en) * | 1977-11-21 | 1979-12-04 | Altec Corporation | Two-section exponential acoustical horn |
| JPS57152792A (en) * | 1981-03-17 | 1982-09-21 | Pioneer Electronic Corp | Horn type speaker |
| EP0086801A1 (en) * | 1981-08-31 | 1983-08-31 | TATTERSALL, Alan Maxwell | Loudspeaker horn |
| JP3116119B2 (ja) * | 1989-04-27 | 2000-12-11 | ティーオーエー株式会社 | スピーカ用ホーン |
| US5925856A (en) * | 1996-06-17 | 1999-07-20 | Meyer Sound Laboratories Incorporated | Loudspeaker horn |
| US5827173A (en) * | 1996-08-19 | 1998-10-27 | Lindsay; Christine M. | Prenatal audio communication device |
| DE19740423C2 (de) * | 1997-09-10 | 2001-08-02 | Ron Kulesa | Anordnung zur mediengebundenen Wellenübertragung |
| AU2001275013A1 (en) | 2000-05-30 | 2001-12-11 | Mark S. Ureda | Cross-fired multiple horn loudspeaker system |
| US7936892B2 (en) * | 2002-01-14 | 2011-05-03 | Harman International Industries, Incorporated | Constant coverage waveguide |
| GB0202284D0 (en) | 2002-01-31 | 2002-03-20 | Martin Audio Ltd | Directional loudspeaker |
| US7203329B2 (en) * | 2004-02-11 | 2007-04-10 | Soundtube Entertainment, Inc. | Audio speaker system employing an axi-symmetrical horn with wide dispersion angle characteristics over an extended frequency range |
| TW200627999A (en) | 2005-01-05 | 2006-08-01 | Srs Labs Inc | Phase compensation techniques to adjust for speaker deficiencies |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US997870A (en) * | 1911-07-11 | Household Cabinet Works | Horn. | |
| US965328A (en) * | 1909-03-18 | 1910-07-26 | Sydney I Prescott | Amplifier for sound-reproducing machines. |
| US1381430A (en) * | 1920-02-25 | 1921-06-14 | Phipps Edward | Amplifier for phonographs and the like |
| US1692994A (en) * | 1926-02-11 | 1928-11-27 | Mattis Frank | Radio loud speaker |
| US1777273A (en) * | 1927-03-04 | 1930-09-30 | Sparks Withington Co | Horn projector |
| US1754506A (en) * | 1928-05-14 | 1930-04-15 | Charles C Flynn | Sound amplifier |
| US1996743A (en) * | 1934-04-25 | 1935-04-09 | Bell Telephone Labor Inc | Acoustic device |
-
1974
- 1974-06-07 US US05/477,383 patent/US3930561A/en not_active Expired - Lifetime
- 1974-12-30 CA CA217,122A patent/CA1034874A/en not_active Expired
- 1974-12-30 DK DK691474A patent/DK691474A/da not_active Application Discontinuation
-
1975
- 1975-01-03 NO NO750016A patent/NO138740C/no unknown
- 1975-01-03 ZA ZA00750061A patent/ZA7561B/xx unknown
- 1975-01-15 GB GB1771/75A patent/GB1494672A/en not_active Expired
- 1975-01-24 NL NL7500881A patent/NL7500881A/xx not_active Application Discontinuation
- 1975-01-28 IT IT19656/75A patent/IT1031207B/it active
- 1975-02-03 DE DE19752504377 patent/DE2504377A1/de active Pending
- 1975-02-10 BE BE153224A patent/BE825374A/xx unknown
- 1975-02-11 FR FR7504213A patent/FR2274100A1/fr active Granted
- 1975-02-14 SE SE7501673A patent/SE399625B/xx unknown
- 1975-03-04 ES ES435283A patent/ES435283A1/es not_active Expired
- 1975-06-06 JP JP6846275A patent/JPS547571B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2274100A1 (fr) | 1976-01-02 |
| BE825374A (fr) | 1975-05-29 |
| NL7500881A (nl) | 1975-12-09 |
| JPS518925A (https=) | 1976-01-24 |
| AU7714375A (en) | 1976-08-05 |
| NO138740C (no) | 1978-11-01 |
| SE7501673L (sv) | 1975-12-08 |
| NO138740B (no) | 1978-07-24 |
| CA1034874A (en) | 1978-07-18 |
| IT1031207B (it) | 1979-04-30 |
| DK691474A (da) | 1975-12-08 |
| SE399625B (sv) | 1978-02-20 |
| FR2274100B1 (https=) | 1979-07-27 |
| DE2504377A1 (de) | 1975-12-18 |
| US3930561A (en) | 1976-01-06 |
| ZA7561B (en) | 1976-01-28 |
| ES435283A1 (es) | 1976-11-16 |
| GB1494672A (en) | 1977-12-07 |
| NO750016L (https=) | 1975-12-09 |