DE200614C - - Google Patents
Info
- Publication number
- DE200614C DE200614C DENDAT200614D DE200614DA DE200614C DE 200614 C DE200614 C DE 200614C DE NDAT200614 D DENDAT200614 D DE NDAT200614D DE 200614D A DE200614D A DE 200614DA DE 200614 C DE200614 C DE 200614C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- sound
- plate
- intermediate plate
- sound tube
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
- Accessory Devices And Overall Control Thereof (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE200614C true DE200614C (https=) |
Family
ID=463239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT200614D Active DE200614C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE200614C (https=) |
-
0
- DE DENDAT200614D patent/DE200614C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE200614C (https=) | ||
| DE445341C (de) | Schalldose fuer Sprechmaschinen | |
| DE478663C (de) | Rufnummernanzeiger mit einem von dem Nummernschalter aus beeinflussten Ziffernwerk | |
| DE255035C (https=) | ||
| US956891A (en) | Printing-wheel. | |
| DE428650C (de) | Stethoskop | |
| DE385483C (de) | Ausgleichreibungspuffer | |
| DE551756C (de) | Schalenfoermige Membran (Feder), insbesondere fuer akustische Zwecke | |
| DE427341C (de) | Eisenbahn-Huelsenpuffer | |
| DE271487C (https=) | ||
| US743530A (en) | Book. | |
| DE257430C (https=) | ||
| CH90737A (de) | Schalldose für Sprechmaschinen. | |
| DE1677711U (de) | Kohlekoernermikrophon mit resonatoreinsprache. | |
| DE260109C (https=) | ||
| DE135505C (https=) | ||
| DE185200C (https=) | ||
| DE413764C (de) | Vorrichtung zur akustischen Untersuchung von Geraeuschen in festen Koerpern mittels eines Telephons | |
| DE1687974U (de) | Typenhebel fuer schreibmaschinen od. dgl. | |
| DE253378C (https=) | ||
| DE1110898B (de) | Auswechselbare Nadelanordnung | |
| DE179688C (https=) | ||
| DE1112548B (de) | Sprechkapsel fuer fernmeldetechnische Zwecke | |
| DE265981C (https=) | ||
| DE242664C (https=) |