GB624435A - Improvements in or relating to radio receiving apparatus - Google Patents

Improvements in or relating to radio receiving apparatus

Info

Publication number
GB624435A
GB624435A GB1699946A GB1699946A GB624435A GB 624435 A GB624435 A GB 624435A GB 1699946 A GB1699946 A GB 1699946A GB 1699946 A GB1699946 A GB 1699946A GB 624435 A GB624435 A GB 624435A
Authority
GB
United Kingdom
Prior art keywords
resistor
radio receiving
diode
detector
relating
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
GB1699946A
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.)
P R T LAB Ltd
PAUL ADALBERT FELDMANN
Original Assignee
P R T LAB Ltd
PAUL ADALBERT FELDMANN
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 P R T LAB Ltd, PAUL ADALBERT FELDMANN filed Critical P R T LAB Ltd
Priority to GB1699946A priority Critical patent/GB624435A/en
Publication of GB624435A publication Critical patent/GB624435A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/04—Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated

Landscapes

  • Picture Signal Circuits (AREA)

Abstract

624,435. Radio receiving systems; limiters. P.R.T. LABORATORIES, Ltd., and FELDMANN, P. A. June 4, 1946, No. 16999. [Class 40 (v)] An arrangement for limiting noise impulses, more particularly for use in television receivers, comprises a diode D2 or other unilaterally conducting device connected in series between the detector D1 and load resistor 3. The diode D2 is biassed over a high resistor 12 to conduct for signals of amplitude less than a predetermined level and to be non-conductive for greater amplitudes. The effect of the bias upon the detector D1 is compensated by means of a corresponding bias derived from the potentiometer 5, 11. In a modified arrangement (the drawing accompanying the Provisional Specification, not shown), the limiting level is varied according to the mean value of the signal by returning the resistor 12 to the resistor 5 and the resistor 11 to a tap on the cathode resistor 8 of a subsequent amplifying stage.
GB1699946A 1946-06-04 1946-06-04 Improvements in or relating to radio receiving apparatus Expired GB624435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1699946A GB624435A (en) 1946-06-04 1946-06-04 Improvements in or relating to radio receiving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1699946A GB624435A (en) 1946-06-04 1946-06-04 Improvements in or relating to radio receiving apparatus

Publications (1)

Publication Number Publication Date
GB624435A true GB624435A (en) 1949-06-08

Family

ID=10087408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1699946A Expired GB624435A (en) 1946-06-04 1946-06-04 Improvements in or relating to radio receiving apparatus

Country Status (1)

Country Link
GB (1) GB624435A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668234A (en) * 1950-06-07 1954-02-02 Zenith Radio Corp Noise-suppression system for television receivers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668234A (en) * 1950-06-07 1954-02-02 Zenith Radio Corp Noise-suppression system for television receivers

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