DE439217C - Loudspeaker telephone - Google Patents

Loudspeaker telephone

Info

Publication number
DE439217C
DE439217C DEG57324D DEG0057324D DE439217C DE 439217 C DE439217 C DE 439217C DE G57324 D DEG57324 D DE G57324D DE G0057324 D DEG0057324 D DE G0057324D DE 439217 C DE439217 C DE 439217C
Authority
DE
Germany
Prior art keywords
sound box
loudspeaker telephone
speech
machine
loudspeaker
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
Application number
DEG57324D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Publication date
Priority to DEG57324D priority Critical patent/DE439217C/en
Application granted granted Critical
Publication of DE439217C publication Critical patent/DE439217C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Description

Lautsprechendes Telephon. Die Erfindung betrifft ein sehr laut sprechendes Telephon ohne wesentliche Sprach- und Tonverzerrung. Gemäß derselben wird die Schalldose einer normalen Sprechmaschine benutzt, die mit einem von den Sprechströmen betätigten elektromagnetischen oder elektrostatischen System durcli die Schwerkraft oder die Reibung gekoppelt wird. Das die Sprechströme in mechanische Schwingungen umsetzende System beeinflußt unmittelbar den Stift der SprechmaschinenschaUdose.Loudspeaker telephone. The invention relates to a very loud speaker Telephone without significant speech and sound distortion. According to the same, the sound box becomes a normal speaking machine used with one of the speech streams actuated electromagnetic or electrostatic system by gravity or the Friction is coupled. That which converts the speech currents into mechanical vibrations System directly affects the pen of the speaking machine socket.

Zur Erläuterung der Erfindung dient die Zeichnung. Sch ist die Schalldose, H der Hebel, S der Stift und T der Trichter einer Sprechmaschine. A ist der mit einem geeigneten Ansatz versehene Anker eines Elektromagnetsystems. Wenn dieses von Sprechströmen, die beispielsweise durch das MikrophonM und die BatterieB geliefert werden, erregt wird, setzt es dieselben iii mechani5che Schwingungen um, die dadurch auf die Schalldose übertragen werden, daß diese mit dem StiftS auf den Ansatz des Ankers aufgesetzt wird. Das Elektromagnetsystem bildet somit einen Zusatzapparat, der die Benutzung einer vorhandenen Sprechmaschine als Lautsprecher beispielsweise in Verbindung mit einem Radioempfänger gestattet.The drawing serves to explain the invention. Sch is the sound box, H the lever, S the pen and T the funnel of a speaking machine. A is the armature of an electromagnet system provided with a suitable attachment. When this is excited by speech currents, for example supplied by the microphoneM and the batteryB, it converts the same mechanical vibrations that are transmitted to the sound box by placing it with the pinS on the attachment of the armature. The electromagnetic system thus forms an additional device that allows the use of an existing speaking machine as a loudspeaker, for example in connection with a radio receiver.

Claims (1)

PATENTANSPR'UCH: Lautsprechendes Telephon, gekennzeichnet durch ein als besonderer Zusatzapparat ausgebildetes, die Sprech#ströme auf elektromagnetischem oder elektrostatischem Wege in mechanische Schwingungen umsetzendes System, das derart mit der Schalldose einer üblichen Sprechmaschine verbunden wird, daß es den Stift der Sprechmaschinenschalldose unmittelbar beeinflußt. PATENT CLAIM: Loudspeaker telephone, characterized by a system designed as a special additional device, which converts the speech currents into mechanical vibrations by electromagnetic or electrostatic means, which is connected to the sound box of a conventional speaking machine in such a way that it directly influences the pin of the speech machine sound box.
DEG57324D Loudspeaker telephone Expired DE439217C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG57324D DE439217C (en) Loudspeaker telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG57324D DE439217C (en) Loudspeaker telephone

Publications (1)

Publication Number Publication Date
DE439217C true DE439217C (en) 1927-01-10

Family

ID=7131576

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG57324D Expired DE439217C (en) Loudspeaker telephone

Country Status (1)

Country Link
DE (1) DE439217C (en)

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