JPS433239B1 - - Google Patents
Info
- Publication number
- JPS433239B1 JPS433239B1 JP2876960A JP2876960A JPS433239B1 JP S433239 B1 JPS433239 B1 JP S433239B1 JP 2876960 A JP2876960 A JP 2876960A JP 2876960 A JP2876960 A JP 2876960A JP S433239 B1 JPS433239 B1 JP S433239B1
- 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.)
- Pending
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
- H04R1/34—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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL240557 | 1959-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS433239B1 true JPS433239B1 (en) | 1967-02-06 |
Family
ID=19751793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2876960A Pending JPS433239B1 (en) | 1959-06-24 | 1960-06-24 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3141070A (en) |
| JP (1) | JPS433239B1 (en) |
| CH (1) | CH385289A (en) |
| DE (1) | DE1282717B (en) |
| FR (1) | FR1260478A (en) |
| GB (1) | GB956448A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3257516A (en) * | 1962-06-25 | 1966-06-21 | Knowles Electronies Inc | Combined instrument and transducer motor cavities for acoustic instrument |
| DE1243240C2 (en) * | 1962-12-13 | 1974-05-09 | Akustische | ELECTROACOUSTIC CONVERTER, WHOSE INDIVIDUAL PARTS ARE CORRECTLY HOLDED TOGETHER BY A MOLDED BODY |
| NL6604014A (en) * | 1966-03-26 | 1967-09-27 | ||
| US3674108A (en) * | 1970-10-29 | 1972-07-04 | David L Beatty | Outdoor speaker enclosure |
| US3870820A (en) * | 1972-06-30 | 1975-03-11 | Victor Company Of Japan | Microphone with different directional modes |
| US9116178B1 (en) * | 2012-10-11 | 2015-08-25 | Reliance Controls Corporation | Circuit tester with variable volume audible voltage indication |
| USD743382S1 (en) * | 2013-09-20 | 2015-11-17 | Panasonic Intellectual Property Management Co., Ltd. | Microphone |
| CN110948525B (en) * | 2019-12-25 | 2021-11-30 | 西南石油大学 | Wall climbing robot safety protection combined protection device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT150218B (en) * | 1934-12-29 | 1937-07-26 | Ver Telephon Czeija Nissl & Co | Acoustic device. |
| NL67077C (en) * | 1945-12-03 | |||
| AT163965B (en) * | 1947-11-26 | 1949-09-10 | Henry Radio Heinrich & Co | Adjustable vibration system |
| US2515031A (en) * | 1948-03-31 | 1950-07-11 | Bell Telephone Labor Inc | Microphone having controllable directional response pattern |
| DE1073545B (en) * | 1953-06-02 | 1960-01-21 | Akustische u Kino Gerate Ges mbH, Wien | Dynamic directional microphone |
| AT186688B (en) * | 1954-08-07 | 1956-09-10 | Akg Akustische Kino Geraete | Dynamic microphone with one-way directional effect |
| US2865464A (en) * | 1954-08-07 | 1958-12-23 | Gorike Rudolf | Unidirectional dynamic microphone |
| DE1014595B (en) * | 1955-02-15 | 1957-08-29 | Lab Wennebostel | Directional microphone |
| AT190987B (en) * | 1956-01-04 | 1957-07-25 | Henry Radio Heinrich & Co | Moving coil microphone |
| USRE26030E (en) * | 1956-02-28 | 1966-05-24 | Dynamic transducer |
-
1958
- 1958-07-07 GB GB21730/60A patent/GB956448A/en not_active Expired
-
1960
- 1960-06-07 US US34556A patent/US3141070A/en not_active Expired - Lifetime
- 1960-06-21 DE DEN18519A patent/DE1282717B/en not_active Withdrawn
- 1960-06-21 CH CH704560A patent/CH385289A/en unknown
- 1960-06-22 FR FR830813A patent/FR1260478A/en not_active Expired
- 1960-06-24 JP JP2876960A patent/JPS433239B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1282717B (en) | 1968-11-14 |
| FR1260478A (en) | 1961-05-05 |
| US3141070A (en) | 1964-07-14 |
| GB956448A (en) | 1964-04-29 |
| CH385289A (en) | 1964-12-15 |