FR791719A - Improvements to loudspeakers and similar instruments - Google Patents
Improvements to loudspeakers and similar instrumentsInfo
- Publication number
- FR791719A FR791719A FR791719DA FR791719A FR 791719 A FR791719 A FR 791719A FR 791719D A FR791719D A FR 791719DA FR 791719 A FR791719 A FR 791719A
- Authority
- FR
- France
- Prior art keywords
- loudspeakers
- similar instruments
- instruments
- similar
- Prior art date
- 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
-
- 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
-
- 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
- H04R1/34—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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19707/34A GB441061A (en) | 1934-07-04 | 1934-07-04 | Improvements in or relating to loudspeakers and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
FR791719A true FR791719A (en) | 1935-12-16 |
Family
ID=10133852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR791719D Expired FR791719A (en) | 1934-07-04 | 1935-06-25 | Improvements to loudspeakers and similar instruments |
Country Status (3)
Country | Link |
---|---|
US (1) | US2049766A (en) |
FR (1) | FR791719A (en) |
GB (1) | GB441061A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2827978A (en) * | 1955-05-31 | 1958-03-25 | Gen Electric | Acoustic radiation force measuring device |
US2979150A (en) * | 1958-10-21 | 1961-04-11 | Jr Jesse C Irby | High fidelity loud speaker cabinet |
US3109721A (en) * | 1958-11-21 | 1963-11-05 | Union Carbide Corp | Method and apparatus for separating a fluid mixture by sonic energy |
US3292727A (en) * | 1963-05-06 | 1966-12-20 | Messerschmitt Ag | High power sound generator for sonic fatique testing |
JPS6042558Y2 (en) * | 1980-04-17 | 1985-12-27 | ソニー株式会社 | speaker |
JP2823157B2 (en) * | 1986-04-01 | 1998-11-11 | キヤノン株式会社 | Audio output system |
US7561704B2 (en) * | 2005-12-07 | 2009-07-14 | Yen-Chen Chan | Structure of speaker |
-
1934
- 1934-07-04 GB GB19707/34A patent/GB441061A/en not_active Expired
-
1935
- 1935-03-27 US US13240A patent/US2049766A/en not_active Expired - Lifetime
- 1935-06-25 FR FR791719D patent/FR791719A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB441061A (en) | 1936-01-06 |
US2049766A (en) | 1936-08-04 |
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