FR1582904A - - Google Patents
Info
- Publication number
- FR1582904A FR1582904A FR158339A FR158339A FR1582904A FR 1582904 A FR1582904 A FR 1582904A FR 158339 A FR158339 A FR 158339A FR 158339 A FR158339 A FR 158339A FR 1582904 A FR1582904 A FR 1582904A
- Authority
- FR
- France
- 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
- 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
-
- 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUEE001409 | 1967-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1582904A true FR1582904A (fr) | 1969-10-10 |
Family
ID=10995235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR158339A Expired FR1582904A (fr) | 1967-06-10 | 1968-07-08 |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT294211B (fr) |
BG (1) | BG29580A3 (fr) |
DE (1) | DE1762363B2 (fr) |
DK (1) | DK138100B (fr) |
FR (1) | FR1582904A (fr) |
SU (1) | SU361611A3 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2028536A1 (fr) * | 1969-01-17 | 1970-10-09 | Philips Nv |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2654323C2 (ru) * | 2016-01-12 | 2018-05-17 | Растошинский Иван Сергеевич | Динамический громкоговоритель с внутренним резонатором |
-
1968
- 1968-05-28 AT AT511468A patent/AT294211B/de not_active IP Right Cessation
- 1968-06-05 DE DE19681762363 patent/DE1762363B2/de not_active Withdrawn
- 1968-06-06 BG BG010091A patent/BG29580A3/xx unknown
- 1968-06-07 DK DK267668A patent/DK138100B/da unknown
- 1968-06-10 SU SU1246217A patent/SU361611A3/ru active
- 1968-07-08 FR FR158339A patent/FR1582904A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2028536A1 (fr) * | 1969-01-17 | 1970-10-09 | Philips Nv |
Also Published As
Publication number | Publication date |
---|---|
SU361611A3 (fr) | 1972-12-07 |
AT294211B (de) | 1971-11-10 |
DE1762363B2 (de) | 1973-07-19 |
DE1762363A1 (de) | 1970-04-16 |
BG29580A3 (en) | 1980-12-12 |
DK138100B (da) | 1978-07-10 |
DK138100C (fr) | 1978-12-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |