[go: up one dir, main page]

DE903223C - Telephone station with a controllable damping element connected upstream of the receiver - Google Patents

Telephone station with a controllable damping element connected upstream of the receiver

Info

Publication number
DE903223C
DE903223C DET4404A DET0004404A DE903223C DE 903223 C DE903223 C DE 903223C DE T4404 A DET4404 A DE T4404A DE T0004404 A DET0004404 A DE T0004404A DE 903223 C DE903223 C DE 903223C
Authority
DE
Germany
Prior art keywords
receiver
attenuator
telephone station
element connected
damping element
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
DET4404A
Other languages
German (de)
Inventor
Georg Bergstraesser
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.)
Tenovis GmbH and Co KG
Original Assignee
Telefonbau und Normalzeit GmbH
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 Telefonbau und Normalzeit GmbH filed Critical Telefonbau und Normalzeit GmbH
Priority to DET4404A priority Critical patent/DE903223C/en
Application granted granted Critical
Publication of DE903223C publication Critical patent/DE903223C/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
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/08Mouthpieces; Microphones; Attachments therefor
    • H04R1/083Special constructions of mouthpieces
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/03Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Adjustable Resistors (AREA)

Description

Man hat bereits bei Fernsprechstationen einem Fernhörer erhöhter Lautstärke ein Dämpfungsglied vorgeschaltet, welches bei Verbindungen mit geringer Leitungsdämpfung die Lautstärke- des Fernhörers herabsetzt und bei Verbindungen mit erhöhter Leitungsdämpfung ausgeschaltet wird.One already has a remote receiver of increased volume in telephone stations an attenuator connected upstream, which is used in connections with low line attenuation reduces the volume of the receiver and for connections with increased line attenuation is turned off.

Um dieses Dämpfungsglied den verschiedensten Leitungslängen anzupassen, ist schon vorgeschlagen worden, das Dämpfungsglied regelbar auszubilden. Die Einstellung .des Dämpfungsgliedes ist bei diesen bekannten Anordnungen jedoch während des Gespräches nicht ohne weiteres möglich, da das Dämpfungsglied zusammen mit seinem Einstellglied im Handgriff des Mikrotelefons untergebracht ist, so daß zu seiner Einstellung das Gespräch unterbrochen werden muß. Die Erfindung zeigt demgegenüber eine Anordnung, die es ermöglicht, während .des Gespräches mit der jeweils freien Hand die gewünschte Lautstärke bequem einzustellen und die den weiteren Vorteil hat, d aß durch Austauschen der Einsprache ein nachträglicher Einbau des Dämpfungsgliedes in ein vorhandenes Mikrotelefon in einfacher Weise ermöglicht wird. Erfindungsgemäß wird das Dämpfungsglied innerhalb der Einsprache des Mikrotelefons angebracht und kann durch ein an der Einsprache angebrachtes Betätigungsglied auf die jeweils gewünschte Lautstärke eingestellt werden.In order to adapt this attenuator to the most diverse line lengths, it has already been proposed to make the attenuator adjustable. The setting .The attenuator is in these known arrangements, however, during the call not easily possible, since the attenuator together with its adjusting member is housed in the handle of the microphone, so that the Conversation must be interrupted. In contrast, the invention shows an arrangement which makes it possible to use your free hand during the conversation to select the desired Conveniently adjust the volume and which has the further advantage that it can be exchanged the objection a subsequent installation of the attenuator in an existing one Microphone is made possible in a simple manner. According to the invention, the attenuator attached within the voice of the microphone and can be accessed by an on the Objection attached actuator set to the desired volume will.

Ein Ausführungsbeispiel des Erfindungsgegenstandes sei an Hand der Zeichnungen näher erläutert. Es zeigen Fig. i ein Schaltbild eines Fernsprechapparates, dessen Fernhörer über ein gemäß der Erfindung ausgebildetes Dämpfungsglied an eine Teilnehmerleitung angeschlossen ist, und Fig.2 und 3 den Zusammenbau eines Dämpfungsgliedes gemäß der Erfindung mit einem üblichen Mikrotelefon. Mikrophonseitig erfolgt der Anschluß eines normalen Fernsprechapparates an eine Teilnehmerleitung gemäß der Fig. i in üblicher Weise. Auf der Seite des Fernhörers F ist jedoch zwischen den Sekundärklemmen der Induktionsspüle T und dem Fernhörer F ein aus drei einstellbaren Widerständen R', R2, R3 bestehendes T-förmiges Dämpfungsglied geschaltet, zu dessen Betätigung ein Drehknöpf D vorgesehen ist. Bei dem dargestellten Dämpfungsglied läßt sich bei jeder Widerstandseinstellung ein gleichbleibender Ein- und Ausgangswiderstand sicherstellen.An embodiment of the subject matter of the invention is based on the Drawings explained in more detail. FIG. 1 shows a circuit diagram of a telephone set, whose remote receiver via an attenuator designed according to the invention to a Subscriber line is connected, and Fig.2 and 3 the assembly of an attenuator according to the invention with a conventional microphone. The microphone takes place Connection of a normal telephone set to a subscriber line according to Fig. I in the usual way. On the side of the handset F, however, is between the Secondary clamps of the induction sink T and the remote receiver F one of three adjustable Resistors R ', R2, R3 connected to the existing T-shaped attenuator Actuation a rotary knob D is provided. In the attenuator shown a constant input and output resistance can be achieved with every resistance setting to ensure.

Gemäß Fig. 2 sind die zur gemeinsamen Betätigungsachse A koaxial angeordneten Dämpfungswiderstände RI, R2, R3 in dem oberhalb der Mikrophondose vorhandenen freien Raum der Einsprache E des Mikrotelefons MT angeordnet. Auf dem äußeren Ende der in der Einsprache gelagerten Betätigungsachse A sitzt der Drehknopf D zur zwangsläufigen Steuerung sämtlicher Dämpfungswiderstände. Der nachträgliche Einbau einer derartig ausgebildeten Einsprache ist ohne weiteres möglich.According to FIG. 2, the damping resistors RI, R2, R3, which are arranged coaxially to the common actuation axis A, are arranged in the free space of the speech E of the microphone MT which is present above the microphone socket. On the outer end of the actuating axis A , which is mounted in the entrance, is the rotary knob D for the inevitable control of all damping resistors. The subsequent installation of an objection designed in this way is easily possible.

Claims (1)

PATENTANSPRÜCII: Fernsprechstation mit einem dem Fernhörer vorgeschalteten regelbaren Dämpfungsglied, dadurch gekennzeichnet, daß das Dämpfungsglied innerhalb der Einsprache des Mikrotelefons angebracht ist und durch ein an der Einsprache angebrachtes Betätigungsglied eingestellt werden kann. Angezogene Druckschriften: Deutsche Patentschriften Nr. 405 68o, 577 528; USA.-Patentschrift Nr. 2 417 o67; »Technische Physik«; i926, Nr. r2, S. 599.PATENT APPLICATION II: Telephone station with a telephone upstream of the receiver adjustable attenuator, characterized in that the attenuator is within the objection of the microtelephone is attached and by an on the objection attached actuator can be adjusted. Referred publications: German Patent Nos. 405 68o, 577 528; U.S. Patent No. 2,417,067; "Technical Physics"; 1926, No. r2, p. 599.
DET4404A 1951-06-06 1951-06-06 Telephone station with a controllable damping element connected upstream of the receiver Expired DE903223C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET4404A DE903223C (en) 1951-06-06 1951-06-06 Telephone station with a controllable damping element connected upstream of the receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET4404A DE903223C (en) 1951-06-06 1951-06-06 Telephone station with a controllable damping element connected upstream of the receiver

Publications (1)

Publication Number Publication Date
DE903223C true DE903223C (en) 1954-02-04

Family

ID=7544618

Family Applications (1)

Application Number Title Priority Date Filing Date
DET4404A Expired DE903223C (en) 1951-06-06 1951-06-06 Telephone station with a controllable damping element connected upstream of the receiver

Country Status (1)

Country Link
DE (1) DE903223C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1042655B (en) * 1955-07-01 1958-11-06 Kapsch Telephon Telegraph Handset for telephone stations
DE1074656B (en) * 1960-02-04 Telephon und Telegraphen Fabriks Aktiengesellschaft Kapsch &. Sohne, Wien Handset for telephone stations which has a built-in handle Tran sistorempfangsverstarker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE405680C (en) * 1924-11-07 Siemens & Halske Akt Ges Circuit arrangement for subscriber stations in telephone systems according to the central battery system
DE577528C (en) * 1929-10-06 1933-06-01 Siemens & Halske Akt Ges Arrangement to avoid acoustic feedback between microphone and telephone (loudspeaker) circuit
US2417067A (en) * 1947-03-11 Telephone substation circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE405680C (en) * 1924-11-07 Siemens & Halske Akt Ges Circuit arrangement for subscriber stations in telephone systems according to the central battery system
US2417067A (en) * 1947-03-11 Telephone substation circuit
DE577528C (en) * 1929-10-06 1933-06-01 Siemens & Halske Akt Ges Arrangement to avoid acoustic feedback between microphone and telephone (loudspeaker) circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074656B (en) * 1960-02-04 Telephon und Telegraphen Fabriks Aktiengesellschaft Kapsch &. Sohne, Wien Handset for telephone stations which has a built-in handle Tran sistorempfangsverstarker
DE1042655B (en) * 1955-07-01 1958-11-06 Kapsch Telephon Telegraph Handset for telephone stations

Similar Documents

Publication Publication Date Title
DE903223C (en) Telephone station with a controllable damping element connected upstream of the receiver
DE6810799U (en) HEADPHONE
DE1512734B2 (en) ELECTRODYNAMIC MICROPHONE
DE1216942B (en) Circuit arrangement for a telephone subscriber set
DE2714132A1 (en) Loudspeaking telephone system with speech direction recognition unit - uses unit for controlling gain of sender and receiver amplifiers (BE 2.10.78)
DE882420C (en) Circuit arrangement for feedback locks in loudspeaker systems
DE577528C (en) Arrangement to avoid acoustic feedback between microphone and telephone (loudspeaker) circuit
DE1281499B (en) Circuit arrangement for voice-controlled hands-free devices with changeable damping stroke
DE2404724A1 (en) ECHO HAND MICROPHONE
DE2254606C2 (en) Impedance matching circuit for telephone subscriber's appts. - has both ends of second winding coupled via DC elements to exchange line
DE2850164A1 (en) DEVICE FOR DOUBLE ADJUSTMENT OF A VEHICLE EXTERIOR MIRROR
DE637389C (en) Portable telephone set
DE933762C (en) Loudspeaker system with several condenser microphones
DE2851170C2 (en) Circuit arrangement for operating a handset on a simplex call station
DE826153C (en) Reversible extension cable
DE3707894A1 (en) Hand-held unit for testing telecommunications line systems
DE1512734C3 (en) Electrodynamic microphone
DE306980C (en)
DE529232C (en) Circuit arrangement for connecting more than two telecommunication devices
DE2244683C3 (en) Circuit arrangement for an exchange-powered telephone set for automatic compensation of differences in attenuation
DE3405623C2 (en)
DE280701C (en)
DE1957641U (en) DEVICE FOR REMOTE ADJUSTMENT OF HEADLIGHTS, IN PARTICULAR ON VEHICLES.
AT125842B (en) Circuit arrangement for telephone systems.
DE335241C (en) Receive circuit