AT32402B - Microphone without horn. - Google Patents

Microphone without horn.

Info

Publication number
AT32402B
AT32402B AT32402DA AT32402B AT 32402 B AT32402 B AT 32402B AT 32402D A AT32402D A AT 32402DA AT 32402 B AT32402 B AT 32402B
Authority
AT
Austria
Prior art keywords
microphone
sound waves
horn
openings
cover
Prior art date
Application number
Other languages
German (de)
Original Assignee
L M Ericsson & Co Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by L M Ericsson & Co Ab filed Critical L M Ericsson & Co Ab
Priority to AT32402D priority Critical patent/AT32402B/en
Application granted granted Critical
Publication of AT32402B publication Critical patent/AT32402B/en

Links

Landscapes

  • Telephone Set Structure (AREA)

Description

  

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  Mikrotelephon ohne Schalltrichter. 
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   Es ist bekannt, Mikrotelephone mit in ein und demselben Gehäuse vorgesehenem Mikrophon und Telephon derart   auszuführen, dass die   Schallwellen in. das Mikrophon durch einen Kreis von seitlichen Öffnungen hineindringen. Bei einer solchen'Einrichtung liegen die Öffnungen immer gänzlich frei mit Rücksicht auf die Notwendigkeit, die durch die Streuung schon wesentlich geschwächten Schallwellen möglichst vollständig in das Mikrophon einzulassen, dagegen dient diese Anordnung nicht zu einem hygienischen Zwecke,
Die oben beschriebene Erfindung kann mit geringen Kosten auch an den schon in Gebrauch befindlichen Mikrotelephonen gewöhnlicher Gattung Verwendung finden, indem   der jetzt gebräuchliche, mit Schalltrichter versehene Mikrophongehäusedeckel durch einen Deckel nach dieser Erfindung ersetzt wird.   



   PATENTANSPRÜCHE : 
1. Mikrotelephon, bei welcher das Telephon und das Mikrophon an je einem Ende eines Handgriffes befestigt sind und das Mikrophon mit einem dichtschliessenden Deckel mit seitlichen Öffnungen für den Eintritt der Schallwellen versehen ist, dadurch gekennzeichnet, dass die genannten Öffnungen durch einen am Deckel vorgesehenen Flansch überdeckt sind, so dass die Schallwellen durch Reflexion an der äusseren Wand des Mikrophongehäuses in das Innere dieses letzteren gelangen und jede Ansteckungsgefahr verhütet ist.



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  Microphone without horn.
 EMI1.1
 

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   It is known to design micro telephones with a microphone and a telephone provided in one and the same housing in such a way that the sound waves penetrate into the microphone through a circle of lateral openings. In such a device, the openings are always completely free, taking into account the need to allow the sound waves, which have already been significantly weakened by the scattering, as completely as possible into the microphone; however, this arrangement does not serve a hygienic purpose,
The invention described above can also be used at low cost on the microtelephones of the usual type that are already in use by replacing the microphone housing cover which is now in use and provided with a horn with a cover according to this invention.



   PATENT CLAIMS:
1. Microtelephones, in which the telephone and the microphone are each attached to one end of a handle and the microphone is provided with a tight-fitting cover with lateral openings for the entry of the sound waves, characterized in that said openings are provided by a flange provided on the cover are covered, so that the sound waves by reflection on the outer wall of the microphone housing reach the interior of the latter and any risk of infection is prevented.

Claims (1)

2. Mikrotelephon nach Anspruch 1, dadurch gekennzeichnet, dass die Öffnungen zum Einlassen der Schallwellen lediglich in der von den Schallwellen getroffenen Seite des Mikrophongehäusedeckels vorgesehen sind, zum Zwecke, den Durchgang der Schallwellen durch den Raum über der Mikrophonmembran zu verhindern. 2. Microtelephone according to claim 1, characterized in that the openings for admitting the sound waves are provided only in the side of the microphone housing cover hit by the sound waves, for the purpose of preventing the passage of the sound waves through the space above the microphone membrane.
AT32402D 1903-12-29 1906-08-17 Microphone without horn. AT32402B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT32402D AT32402B (en) 1903-12-29 1906-08-17 Microphone without horn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT24248T 1903-12-29
AT32402D AT32402B (en) 1903-12-29 1906-08-17 Microphone without horn.

Publications (1)

Publication Number Publication Date
AT32402B true AT32402B (en) 1908-03-26

Family

ID=25598428

Family Applications (1)

Application Number Title Priority Date Filing Date
AT32402D AT32402B (en) 1903-12-29 1906-08-17 Microphone without horn.

Country Status (1)

Country Link
AT (1) AT32402B (en)

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