CH103111A - Device for emitting oscillations for wireless telephony. - Google Patents
Device for emitting oscillations for wireless telephony.Info
- Publication number
- CH103111A CH103111A CH103111DA CH103111A CH 103111 A CH103111 A CH 103111A CH 103111D A CH103111D A CH 103111DA CH 103111 A CH103111 A CH 103111A
- Authority
- CH
- Switzerland
- Prior art keywords
- microphone
- generator
- wireless telephony
- oscillations
- rest
- Prior art date
Links
- 230000010355 oscillation Effects 0.000 title claims description 4
- 230000000977 initiatory effect Effects 0.000 description 1
Landscapes
- Transmitters (AREA)
Description
Dispositif d'émission d'oscillations pour téléphonie sans<B>fil.</B> La présente invention se rapporte<B>à</B> un dispositif d'émission d'oscillations pour télé phonie sans fil, comprenant un microphone, un g,#nérateur <B>à</B> tubes thermo-ioniques et un circuit d'utiti#;atioti. Ce dispositif est carac térisé en ce que le débit du générateur dans le circuit d'utilisation n'a lieu que lorsque le microphone fonctionne, le générateur res tant au repos lorsque le microphone est lui- même au repos.
Le dessin ci-aiinex6 représente,<B>à</B> titre d'exemple, une forme d'exécution de l'objet de l'invention.
Dans cette forme d'exécution, on a cons titué un pont de Wheatstone avec trois im pédances Zi A<I>A</I> et un dispositif de mo dulation constitué par un microphone<B>M</B> suivi d'ampli ficateurs rnicrophoniques non-représen- tés. Une diagonale<B>du</B> pont est alimentée par la source<B>à</B> haute fréquence composée de tubes thermo-ioniques, taudis qu'un trans formateur Ti est situé sur l'autre diagonale. Le transformateur Ti est relié en<B>1</B> et 2 au circuit d'utilisation.
Le réglage est tel que, lorsqu'on ne parle pas devant le microphone, le transformateur Ti n'est le siège d'aucun courant. On ne recueillera, donc de la puis sance<B>à</B> haute fréquence aux bornes<B>1</B> et 2 que du fait de la conversation.
Device for transmitting oscillations for wireless telephony. </B> The present invention relates <B> to </B> a device for transmitting oscillations for wireless telephony, comprising a microphone, a generator <B> with </B> thermo-ionic tubes and a circuit of initiation #; atioti. This device is characterized in that the flow rate of the generator in the user circuit takes place only when the microphone is operating, the generator being at rest when the microphone itself is at rest.
The above drawing shows, <B> to </B> by way of example, one embodiment of the object of the invention.
In this embodiment, a Wheatstone bridge has been constructed with three im pedances Zi A <I> A </I> and a modulating device consisting of a microphone <B> M </B> followed by microphonic amplifiers not shown. A diagonal <B> of the </B> bridge is powered by the high frequency <B> </B> source composed of thermionic tubes, slums that a Ti transformer is located on the other diagonal. The transformer Ti is connected at <B> 1 </B> and 2 to the user circuit.
The setting is such that, when you are not speaking in front of the microphone, the transformer Ti is not the seat of any current. High frequency <B> at </B> power at terminals <B> 1 </B> and 2 will only be collected as a result of the conversation.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR103111X | 1916-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH103111A true CH103111A (en) | 1924-02-01 |
Family
ID=8871878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH103111D CH103111A (en) | 1916-10-23 | 1919-12-15 | Device for emitting oscillations for wireless telephony. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH103111A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3017607A (en) * | 1952-07-29 | 1962-01-16 | Sidney M Rubens | Acoustic impedance detecting apparatus |
-
1919
- 1919-12-15 CH CH103111D patent/CH103111A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3017607A (en) * | 1952-07-29 | 1962-01-16 | Sidney M Rubens | Acoustic impedance detecting apparatus |
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