DE22341C - Neuerung an dem unter Nr. 15020 geschützten Telephon - Google Patents
Neuerung an dem unter Nr. 15020 geschützten TelephonInfo
- Publication number
- DE22341C DE22341C DENDAT22341D DE22341DA DE22341C DE 22341 C DE22341 C DE 22341C DE NDAT22341 D DENDAT22341 D DE NDAT22341D DE 22341D A DE22341D A DE 22341DA DE 22341 C DE22341 C DE 22341C
- Authority
- DE
- Germany
- Prior art keywords
- telephone
- innovation
- protected under
- sound
- protected
- 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
- 239000012528 membrane Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for telephonic receivers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Building Environments (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
KAISERLICHES
PATENTAMT
Diese Neuerung besteht darin, an Stelle des Schallkastens des Haupt-Patentes, unterhalb
der Membran, einen Schallboden anzubringen, welcher eine centrale Oeffnung hat zum Durchfuhren
der Polschuhe.
In beiliegender Zeichnung ist die Erfindung dargestellt.
Unterhalb der Membran m ist in einigen Millimetern Entfernung der aus Holz gefertigte
Schallboden A angebracht, durch dessen centrale Durchbrechung die Magnetenden bezw.
die Polschuhe hindurch geführt werden. Im übrigen bleibt- die Construction unverändert die
im Haupt-Patent beschriebene. Das Gehäuse B bildet den Resonanzkasten und ist mit Schalllöchern
versehen.
Claims (1)
- Patent-Anspruch:Die Anwendung eines Schallbodens A unterhalb der Membran eines Telephons an Stelle des im Haupt - Patent beschriebenen Schallkastens.Hierzu ι Blatt Zeichnungen.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE22341T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE22341C true DE22341C (de) |
Family
ID=5620913
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT22341D Active DE22341C (de) | Neuerung an dem unter Nr. 15020 geschützten Telephon | ||
| DENDAT15020D Active DE15020C (de) | Telephon mit Resonanzkasten zur Verstärkung der Lautübertragung |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT15020D Active DE15020C (de) | Telephon mit Resonanzkasten zur Verstärkung der Lautübertragung |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE15020C (de) |
-
0
- DE DENDAT22341D patent/DE22341C/de active Active
- DE DENDAT15020D patent/DE15020C/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE15020C (de) |
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