DE304089C - - Google Patents
Info
- Publication number
- DE304089C DE304089C DE1915304089D DE304089DA DE304089C DE 304089 C DE304089 C DE 304089C DE 1915304089 D DE1915304089 D DE 1915304089D DE 304089D A DE304089D A DE 304089DA DE 304089 C DE304089 C DE 304089C
- Authority
- DE
- Germany
- Prior art keywords
- telephone
- thermal
- detector
- telephony
- telegraphy
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/22—Circuits for receivers in which no local oscillation is generated
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung betrifft ein Verfahren der drahtlosen Übertragung elektrischer Wellen zum Zweck der Telegraphie oder Telephonie und beruht auf der Beobachtung, daß bei Benutzung eines thermischen Telephons beliebiger Bauart als Empfänger der bisher zwischen dem Luftleiter der Empfängerstelle und dem Telephon eingeschaltete Detektor in Wegfall kommen kann.The invention relates to a method of wireless transmission of electrical waves for the purpose of telegraphy or telephony and is based on the observation that at Use of a thermal telephone of any type as a receiver of the previously between the air conductor of the receiving station and the telephone switched on detector in omission can come.
ίο Versuche haben ergeben, daß das als Empfänger dienende thermische Telephon gleichzeitig die Aufgabe des Detektors erfüllen kann. Dieser Vorgang ist offenbar darauf zurückzuführen, daß ein thermisches Telephon voll-ίο Experiments have shown that the recipient serving thermal telephone can simultaneously fulfill the task of the detector. This process is evidently due to the fact that a thermal telephone is fully
!5 kommen induktionsfrei arbeitet. Es hat sich ferner herausgestellt, daß auch der sonst im Nebenschluß zu dem Telephon angeordnete Kondensator und die in dem Nebenschlußkreise befindliche Batterie bei Benutzung eines thermischen Telephons als Empfänger in Wegfall kommen können. Hierdurch wird nicht nur eine wesentliche Vereinfachung der zur drahtlosen Übertragung elektrischer Wellen dienenden Einrichtung bedingt, sondern gleichzeitig auch die Bedienung der Einrichtung erleichtert und eine Reihe von Fehlerquellen ausgeschlossen, die bei den bisher üblichen, mit Detektor und Kondensator arbeitenden Einrichtungen auftreten.! 5 works without induction. It has furthermore it was pointed out that also the one otherwise arranged in shunt to the telephone Capacitor and the battery in the shunt circuit when using a thermal Telephones can be omitted as receivers. This not only significantly simplifies the wireless one Transmission of electrical waves serving device conditionally, but simultaneously also facilitates the operation of the device and eliminates a number of sources of error, those in the previously common devices that work with detector and capacitor appear.
Auf der Zeichnung ist als Ausführungsbeispiel eine Empfängerstelle nach der vorliegenden Erfindung schematisch dargestellt.In the drawing, a receiver location according to the present invention is shown as an exemplary embodiment Invention shown schematically.
An den Luftleiter α der Empfängerstelle ist das thermische Telephon b angeschlossen, das zweckmäßig unter Einschaltung einer Induk- 3^ tionsspule c von regelbarer Wirkung geerdet ist. Α to the air director of the receiver location is attached, the thermal telephone b, which is expedient grounded with inclusion of an induction coil 3 ^ c tion of controllable effect.
Es hat sich gezeigt, daß die Güte der Lautwiedergabe des thermischen Telephons innerhalb gewisser Grenzen mit der Steigerung des inneren Widerstandes des Telephons wächst.It has been shown that the quality of the sound reproduction of the thermal telephone within certain limits with the increase in internal resistance of the telephone grows.
Aus vorstehendem ergibt sich, daß die zur Ausführung des beschriebenen Verfahrens dienende Einrichtung sehr einfach ist und nur einen äußerst geringen Raum in Anspruch nimmt. Dieser Umstand sowie die Einfachheit der Bedienung der zur Wellenübertragung dienenden -Einrichtung ist besonders für die drahtlose Telegraphie oder Telephonie im Felde und zur See von großer Bedeutung.From the above it follows that the used to carry out the method described Setup is very simple and takes up very little space. This fact as well as the simplicity the operation of the device used for wave transmission is particularly important for the wireless telegraphy or telephony in the field and at sea is of great importance.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE304089T | 1915-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE304089C true DE304089C (en) |
Family
ID=32668454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1915304089D Expired - Lifetime DE304089C (en) | 1915-02-05 | 1915-02-05 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE304089C (en) |
FR (1) | FR480854A (en) |
GB (1) | GB191503954A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1531253A (en) * | 1976-02-02 | 1978-11-08 | Kyriacou N | Vehicle with suspension system |
-
1915
- 1915-02-05 DE DE1915304089D patent/DE304089C/de not_active Expired - Lifetime
- 1915-03-12 GB GB191503954D patent/GB191503954A/en not_active Expired
-
1916
- 1916-02-04 FR FR480854D patent/FR480854A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR480854A (en) | 1916-10-04 |
GB191503954A (en) | 1916-03-09 |
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