DE387900C - Sound transmission apparatus for telephones - Google Patents
Sound transmission apparatus for telephonesInfo
- Publication number
- DE387900C DE387900C DEA38832D DEA0038832D DE387900C DE 387900 C DE387900 C DE 387900C DE A38832 D DEA38832 D DE A38832D DE A0038832 D DEA0038832 D DE A0038832D DE 387900 C DE387900 C DE 387900C
- Authority
- DE
- Germany
- Prior art keywords
- sound transmission
- transmission apparatus
- sound
- ear
- mouthpiece
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
- H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
- H04M1/2155—Acoustic coupling
-
- 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
- H04R1/345—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 for loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Description
Die vorliegende Erfindung betrifft einen Schallübertragungsapparat für Telephone, welcher Apparat es einer dritten Person evtl. mehreren Personen ermöglicht, ein Telephongespräch mit anzuhören oder, bei Benutzung des Telephons durch eine Person, die Mitbenutzung des zweiten Ohres gestattet.The present invention relates to a sound transmission apparatus for telephones which Apparatus that allows a third person, possibly more than one person, to make a telephone call to listen to or, if one person is using the phone, to share it of the second ear.
Auf der Zeichnung ist das zum Verständnis der Erfindung Notwendige dargestellt.In the drawing, what is necessary to understand the invention is shown.
Der Apparat besteht aus einem durchbohrten Teil a, welchen der Sprechende im gleichen Ohr anbringt, an welches er das Telephon hält, und aus einer vom Teil α ausgehenden, an und für sich bekannten, biegsamen Rohrleitung b, welche zu einem Schalltrichter o. dgl. c führt, welchen derjenige, der das Gespräch mit anhören will, an sein Ohr hält.The apparatus consists of a pierced part a, which the speaker attaches in the same ear to which he is holding the telephone, and of a known flexible pipe b extending from part α , which leads to a bell or the like. c leads, which the person who wants to listen to the conversation holds to his ear.
Die Schwingungen, die die Telephonmembran ausführt, werden teils an das eine OhrThe vibrations carried out by the telephone membrane are partly transmitted to one ear
ao des Sprechenden und teils durch das Loch d im Teil« durch die Leitung & und den Trichter c an das andere Ohr bzw. dasjenige einer zweiten Person übertragen.ao of the speaker and partly through the hole d in part «through the line & and the funnel c to the other ear or that of a second person.
Hieraus ist es verständlich, daß der Teil a eine solche Form haben muß, daß das Lochi nicht verschlossen wird, wenn das Telephon an das Ohr gehalten wird. Der Teil α kann z. B. aus einer ungefähr halbrunden, durchlochten Scheibe bestehen, welche in dem untersten Teil der Ohrmuschel angebracht werden kann.From this it is understandable that part a must have such a shape that the hole is not closed when the telephone is held to the ear. The part α can, for. B. consist of an approximately semicircular, perforated disc, which can be attached in the lowest part of the auricle.
Der Schalltrichter c kann aus einer halbkugelförmigen Schale bestehen, doch kann seine Form willkürlich sein, ebenso wie er mit geeignetem Handgriff versehen sein kann.The horn c may consist of a hemispherical shell, but its shape may be arbitrary, as well as it may be provided with a suitable handle.
Wenn mehrere Personen gleichzeitig das Gespräch mit anhören sollen, kann eine entsprechende Anzahl Apparate angewandt werden, indem der Teil α des zweiten Apparates in dem Ohr des ersten Zuhörers untergebracht wird, gegen welches dieser den Trichter c des ersten Apparates hält usw. Hierdurch] wird selbstverständlich der zweite Zuhörer schlechter hören als der erste· usw.If several people are to listen to the conversation at the same time, a corresponding number of devices can be used by placing part α of the second device in the ear of the first listener, against which he holds the funnel c of the first device, etc. This] becomes a matter of course the second listener hears worse than the first, etc.
Es ist daher in diesem Falle besser, eine solche Ausführungsfqrm des Apparates anzuwenden, bei welcher vom Teil α mehrere Leitungen l· mit je einem Trichter c ausgehen. Hierdurch hört der zweite Zuhörer ebensogutwie der erste, und beide hören nicht wesentlieh schlechter, als wenn nur ein Teil b und c vorhanden wäre.It is therefore better in this case to use such an embodiment of the apparatus in which several lines l · each with a funnel c extend from part α. As a result, the second listener hears just as well as the first, and neither hears much worse than if only part b and c were present.
Es ist klar, daß die Form der einzelnen Teile beträchtlich variieren· kann, ohne über den Rahmen der Erfindung hinauszugehen.It is clear that the shape of the individual parts can vary considerably without going over go beyond the scope of the invention.
Man kennt Schallübertragungsapparate, die in ähnlicher Weise wie der oben beschriebene wirken, bei welchen jedoch das eine Ende des der Rohrleitung & entsprechenden Teiles am Telephon selbst eingebaut oder lösbar mit letz- So terem verbunden ist. „ ■Sound transmission apparatuses are known which operate in a manner similar to that described above act, in which, however, one end of the part corresponding to the pipeline & on the Telephone built in or detachably connected to the latter. "■
Im Gegensatz hierzu ist der Teil α im be-In contrast to this, the part α is
schriebenen Apparat nicht mit dem Telephon zusammengebaut oder an ihm besonders zu befestigen, sondern durch seine Anbringung im Ohr ganz unabhängig vom Telephon und seiner Konstruktion; er kann also mit, jeder Art von Telephon zusammen benutzt werden.The written apparatus is not assembled with the telephone or specially attached to it, but because it is placed in the ear it is completely independent of the telephone and its construction; so he can with, any kind of Telephone can be used together.
Durch Anbringung des die Schallübertragung vermittelnden Stückes α im unteren Teil der Vertiefung der Ohrmuschel bleibt derBy attaching the sound transmission mediating piece α in the lower part of the recess of the auricle remains the
to äußere Gehörgang frei. Die von der Membran erzeugten Schallwellen können mithin ungehindert in letzteren eintreten. Der Schallübertragungsapparat ist von kleinsten Abmessungen, er wird in Westentaschenformat hergestellt, so daß er von jedermann mitgeführt werden kann und stets zur Hand ist.to free outer ear canal. The sound waves generated by the membrane can therefore be unhindered enter into the latter. The sound transmission apparatus is of the smallest dimensions, it is manufactured in a pocket-sized format so that it can be carried by anyone and is always at hand.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK202268X | 1922-08-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE387900C true DE387900C (en) | 1924-01-09 |
Family
ID=8149913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA38832D Expired DE387900C (en) | 1922-08-08 | 1922-11-19 | Sound transmission apparatus for telephones |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE387900C (en) |
FR (1) | FR562185A (en) |
GB (1) | GB202268A (en) |
NL (1) | NL13467C (en) |
-
0
- NL NL13467D patent/NL13467C/xx active
-
1922
- 1922-11-19 DE DEA38832D patent/DE387900C/en not_active Expired
-
1923
- 1923-02-03 GB GB3262/23A patent/GB202268A/en not_active Expired
- 1923-02-15 FR FR562185D patent/FR562185A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB202268A (en) | 1923-10-18 |
FR562185A (en) | 1923-11-05 |
NL13467C (en) |
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