US1666753A - High-frequency telegraphing apparatus - Google Patents
High-frequency telegraphing apparatus Download PDFInfo
- Publication number
- US1666753A US1666753A US78035A US7803525A US1666753A US 1666753 A US1666753 A US 1666753A US 78035 A US78035 A US 78035A US 7803525 A US7803525 A US 7803525A US 1666753 A US1666753 A US 1666753A
- Authority
- US
- United States
- Prior art keywords
- telegraphing
- frequency
- choke
- circuit
- chokes
- 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
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
Definitions
- FIG. 1 is a diagram showing one specific -applica-' tion of our invention to an are sending circuit.
- y g I V In the figure Gr designates the generator, for instance an arc generator, C and C, are block condensers; C and L serve as tuning 'means; D is the choke coil in the intermediate circuit, the high frequency coil of the choke being shunted by a resistance W. L,
- the antenna tuning coil coupled to the intermediate circuit, the antenna tuning coil being connected to ground through the choke D During the radiation of the oscillations the chokes D and D are saturated, hence there is no choking effect when key T is closed. When the key is open, however, and
- the antenna ceases to radiate due to the action of 80 the choke 1),. Then the energy is conducted to the intermediate circuit choke D to which the resistance W is connected in parallel, a proper proportionmg of said resistancefurmshing a simple means coacting with said "choke to regulate the performance of the generator so'as to obtain a'unifo'rm loading of same during the entire operation.
- controlle simultaneously by one and the same controlling current, and a resistance connected in parallel with the choke located in said intermediate preceding circuit.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
Description
Apfil 17, 1928. 1,666,753
L. PUNGS ET AL HIGH FREQUENCY TELEGRAPHING APPARATUS Fi led Dec. 28. 1925 Lea R 123: H
' Patented Apr. 17, 1928.
UNITED STATES PATENT OFFICE.
LEO PUNGS AND ROBERT HERZOG, OF BERLIN, GERMANY, ASSIGNORS-TO CQLORENZ' AKTIENGESELLSCHAFT, OF BEBLIN-TEMPELHOF, GERMANY.
HIGH-FREQUENCY TELEGRAPHING APPARATUS.
Application filed December 28, 1925, Serial No. 78,035, and inGermany February 13, 1925.
is a diagram showing one specific -applica-' tion of our invention to an are sending circuit. y g I V In the figure Gr designates the generator, for instance an arc generator, C and C, are block condensers; C and L serve as tuning 'means; D is the choke coil in the intermediate circuit, the high frequency coil of the choke being shunted by a resistance W. L,
is the antenna tuning coil coupled to the intermediate circuit, the antenna tuning coil being connected to ground through the choke D During the radiation of the oscillations the chokes D and D are saturated, hence there is no choking effect when key T is closed. When the key is open, however, and
- when the chokes are not saturated, the antenna ceases to radiate due to the action of 80 the choke 1),. Then the energy is conducted to the intermediate circuit choke D to which the resistance W is connected in parallel, a proper proportionmg of said resistancefurmshing a simple means coacting with said "choke to regulate the performance of the generator so'as to obtain a'unifo'rm loading of same during the entire operation.
What "Weclaim is: Q 7 I 1. In a high frequency signaling system, the combination of a high frequency gen- 40 era-tor, a radiating antenna system, one or more intermediate circuits arranged between said generator and said radiating system, iron chokes placed in 531d radiating circult and in a cpreceding intermediate circuit and;
controlle simultaneously by one and the same controlling current, and a resistance connected in parallel with the choke located in said intermediate preceding circuit.
2. In .a high. frequency signaling system, the combination of an arc oscillating circuit acting upon a radiating antenna circuit, iron chokes located respectively in said oscillat ing and said antenna circuit, both chokes having controlling windings controlled by one and the same controlling current, and a resistance connected in parallel with said choke located in the arc oscillating circuit.
In testimony whereof we afiix our signatures. q
7 LEO PUNGS.
' ROBERT HERZOG.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE247538X | 1925-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1666753A true US1666753A (en) | 1928-04-17 |
Family
ID=5935387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US78035A Expired - Lifetime US1666753A (en) | 1925-02-13 | 1925-12-28 | High-frequency telegraphing apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US1666753A (en) |
GB (1) | GB247538A (en) |
-
1925
- 1925-12-28 US US78035A patent/US1666753A/en not_active Expired - Lifetime
-
1926
- 1926-01-19 GB GB1559/26A patent/GB247538A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB247538A (en) | 1927-04-14 |
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