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 receiverInfo
- 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
Links
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
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
-
- 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
- H04M1/03—Constructional 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)
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)
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)
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 |
-
1951
- 1951-06-06 DE DET4404A patent/DE903223C/en not_active Expired
Patent Citations (3)
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)
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 |
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