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DE681437C - Receiver with automatic shrinkage control - Google Patents

Receiver with automatic shrinkage control

Info

Publication number
DE681437C
DE681437C DER94949D DER0094949D DE681437C DE 681437 C DE681437 C DE 681437C DE R94949 D DER94949 D DE R94949D DE R0094949 D DER0094949 D DE R0094949D DE 681437 C DE681437 C DE 681437C
Authority
DE
Germany
Prior art keywords
receiver
shrinkage control
automatic shrinkage
control
regulation
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
DER94949D
Other languages
German (de)
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of DE681437C publication Critical patent/DE681437C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control

Landscapes

  • Details Of Television Scanning (AREA)

Description

Empfänger mit selbsttätiger Schwundregelung Die Erfindung hat eine Verbesserung der Schwundregelung zum Gegenstand, welche b@ekanntlich mit der durch Gleichrichtung der empfangenen Hochfrequenz gewonnenen Gleichspannung vorgenommen wird. Nach der Erfindung werden die bei der Regelung im Hochfrequenzteil noch verbleibenden Abweichungen vom konstanten Wert der geregelten Spannung durch eine Regelung im Niederfrequenzteil ausgeglichen.Receiver with automatic shrinkage control The invention has one Improvement of the shrinkage regulation on the subject, which is known with the through Rectification of the received high frequency obtained direct voltage made will. According to the invention, the remaining in the control in the high-frequency part Deviations from the constant value of the regulated voltage due to regulation in Low frequency part balanced.

Durch die Regelung im Niederfrequenzteil wird also ein Ausgleich beim Empfang starker Hochfrequenzamplituden-erzielt, welche durch die Regelung im Hochfrequenzteil nicht genügend geschwächt werden. Die Wirkungsweise dieses Ausgleiches besteht darin, daß die Vorspannung an der geregelten Niederfrequenzröhre vergrößert wird, wenn die dieser Röhre zugeführte Amplitude infolge der Tatsache zunimmt, daß die geregelte Hochfrequenznöhre die durchschnittliche Hochfrequenzamplitude nicht auf einem konstanten Wert erhält.The regulation in the low-frequency part thus compensates for Receipt of strong high-frequency amplitudes-achieved through the regulation in the high-frequency part not weakened enough. The mode of action of this compensation is: that the bias on the regulated low frequency tube is increased when the amplitude supplied to this tube increases due to the fact that the regulated High frequency tube the average high frequency amplitude is not on a constant Value.

Dieser Ausgleich kann auch bei Empfängern mit Krachbeseitigung angewendet werden. Seine Hauptwirkung besteht darin, eine bessere Regelung von sehr starken Hochfrequenzamplituden zu erzielen.This compensation can also be applied to receivers with noise elimination will. Its main effect is to provide better regulation of very strong To achieve high frequency amplitudes.

Claims (1)

PATENTANSPRUCH: Empfänger mit selbsttätiger Schwundregelung, dadurch gekennzeichnet, daß die bei der Regelung im Hochfrequenzteil noch verbleibenden Abweichungen vom konstanten Wert der geregelten Spannung durch .eine Regelung im Niederfrequenzteil ausgeglichen werden.PATENT CLAIM: Receiver with automatic shrinkage control, thereby characterized in that the still remaining in the control in the high-frequency part Deviations from the constant value of the regulated voltage due to a regulation in the Low frequency part can be compensated.
DER94949D 1931-11-25 1932-11-25 Receiver with automatic shrinkage control Expired DE681437C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US681437XA 1931-11-25 1931-11-25

Publications (1)

Publication Number Publication Date
DE681437C true DE681437C (en) 1939-09-22

Family

ID=587133

Family Applications (1)

Application Number Title Priority Date Filing Date
DER94949D Expired DE681437C (en) 1931-11-25 1932-11-25 Receiver with automatic shrinkage control

Country Status (1)

Country Link
DE (1) DE681437C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762855C (en) * 1932-04-06 1953-02-09 Hazeltine Corp Receiving circuit with an automatic gain control
DE910062C (en) * 1950-11-17 1954-04-29 Blaupunkt Elektronik G M B H Switching arrangement for volume control for hearing aids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762855C (en) * 1932-04-06 1953-02-09 Hazeltine Corp Receiving circuit with an automatic gain control
DE910062C (en) * 1950-11-17 1954-04-29 Blaupunkt Elektronik G M B H Switching arrangement for volume control for hearing aids

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