GB702359A - Improvements relating to non-linear electrical circuits - Google Patents

Improvements relating to non-linear electrical circuits

Info

Publication number
GB702359A
GB702359A GB29343/51A GB2934351A GB702359A GB 702359 A GB702359 A GB 702359A GB 29343/51 A GB29343/51 A GB 29343/51A GB 2934351 A GB2934351 A GB 2934351A GB 702359 A GB702359 A GB 702359A
Authority
GB
United Kingdom
Prior art keywords
electrical circuits
improvements relating
linear electrical
march
minimum
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
GB29343/51A
Inventor
Ronald Thomas Clayden
Leslie Robert Free
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Publication of GB702359A publication Critical patent/GB702359A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/02—Volume compression or expansion in amplifiers having discharge tubes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/04—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by hand
    • H03J5/12—Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Feedback Control In General (AREA)
  • Picture Signal Circuits (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Television Receiver Circuits (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Control Of Turbines (AREA)

Abstract

702,359. Valve amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 9, 1951 [March 22, 1950], No. 29343/51. Divided cut of 702,325. Drawings to Specification. Class 40 (6) In a circuit in which the gain rises as the input falls towards a minimum, the gain is reduced over a small range of signals above and including the minimum. The subject-matter of the Specification is identical with the description relating to Fig. 2 of Specification 702,325. Specification 449,242 also is referred to.
GB29343/51A 1950-03-22 1950-03-22 Improvements relating to non-linear electrical circuits Expired GB702359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7106/50A GB702325A (en) 1950-03-22 1950-03-22 Improvements in or relating to electrical control circuits

Publications (1)

Publication Number Publication Date
GB702359A true GB702359A (en) 1954-01-13

Family

ID=40626970

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7106/50A Expired GB702325A (en) 1950-03-22 1950-03-22 Improvements in or relating to electrical control circuits
GB29343/51A Expired GB702359A (en) 1950-03-22 1950-03-22 Improvements relating to non-linear electrical circuits

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB7106/50A Expired GB702325A (en) 1950-03-22 1950-03-22 Improvements in or relating to electrical control circuits

Country Status (4)

Country Link
DE (2) DE888263C (en)
FR (1) FR1042804A (en)
GB (2) GB702325A (en)
NL (1) NL89009C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878326A (en) * 1955-09-16 1959-03-17 Bendix Aviat Corp Amplitude selective translation circuit
BE565503A (en) * 1957-03-09
GB927993A (en) * 1961-03-10 1963-06-06 Emi Ltd Improvements relating to non-linear electrical circuits

Also Published As

Publication number Publication date
DE912701C (en) 1954-06-03
NL89009C (en) 1958-04-15
FR1042804A (en) 1953-11-04
GB702325A (en) 1954-01-13
DE888263C (en) 1953-08-31

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