AT225767B - Schallempfänger mit Richtwirkung - Google Patents
Schallempfänger mit RichtwirkungInfo
- Publication number
- AT225767B AT225767B AT387861A AT387861A AT225767B AT 225767 B AT225767 B AT 225767B AT 387861 A AT387861 A AT 387861A AT 387861 A AT387861 A AT 387861A AT 225767 B AT225767 B AT 225767B
- Authority
- AT
- Austria
- Prior art keywords
- sound receiver
- directional effect
- directional
- effect
- sound
- Prior art date
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
- 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
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
-
- 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
- H04R1/38—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 in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT387861A AT225767B (de) | 1961-05-17 | 1961-05-17 | Schallempfänger mit Richtwirkung |
GB18945/62A GB996579A (en) | 1961-05-17 | 1962-05-16 | Improvements in directional sound-receiving apparatus |
US196571A US3261915A (en) | 1961-05-17 | 1962-05-17 | Directional sound transmitter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT387861A AT225767B (de) | 1961-05-17 | 1961-05-17 | Schallempfänger mit Richtwirkung |
Publications (1)
Publication Number | Publication Date |
---|---|
AT225767B true AT225767B (de) | 1963-02-11 |
Family
ID=3556657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT387861A AT225767B (de) | 1961-05-17 | 1961-05-17 | Schallempfänger mit Richtwirkung |
Country Status (3)
Country | Link |
---|---|
US (1) | US3261915A (de) |
AT (1) | AT225767B (de) |
GB (1) | GB996579A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3777079A (en) * | 1971-10-21 | 1973-12-04 | Willco Gmbh | Directional microphone for head mounted midget hearing aids |
US3770911A (en) * | 1972-07-21 | 1973-11-06 | Industrial Research Prod Inc | Hearing aid system |
AT360600B (de) * | 1979-03-22 | 1981-01-26 | Akg Akustische Kino Geraete | Richtmikrophon |
US8723656B2 (en) | 2011-03-04 | 2014-05-13 | Blackberry Limited | Human audible localization for sound emitting devices |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1711529A (en) * | 1923-05-14 | 1929-05-07 | Signal Ges Mit Beschraenkter H | Multiple-range sound-transmitting system |
GB721976A (en) * | 1952-08-11 | 1955-01-19 | Ferguson Radio Corp | Improvements in and relating to sound reproducing apparatus |
US2898405A (en) * | 1955-07-13 | 1959-08-04 | George H Eck | Listening device |
DE1082298B (de) * | 1957-04-13 | 1960-05-25 | Rudolf Goerike Dr | Kondensatorkleinmikrophon |
-
1961
- 1961-05-17 AT AT387861A patent/AT225767B/de active
-
1962
- 1962-05-16 GB GB18945/62A patent/GB996579A/en not_active Expired
- 1962-05-17 US US196571A patent/US3261915A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB996579A (en) | 1965-06-30 |
US3261915A (en) | 1966-07-19 |
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