GB790219A - Variable reactance circuit elements and applications thereof - Google Patents

Variable reactance circuit elements and applications thereof

Info

Publication number
GB790219A
GB790219A GB31332/54A GB3133254A GB790219A GB 790219 A GB790219 A GB 790219A GB 31332/54 A GB31332/54 A GB 31332/54A GB 3133254 A GB3133254 A GB 3133254A GB 790219 A GB790219 A GB 790219A
Authority
GB
United Kingdom
Prior art keywords
phase
line
applications
circuit elements
variable reactance
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
GB31332/54A
Inventor
Harold Alfred Fairhurst
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.)
Murphy Radio Ltd
Original Assignee
Murphy Radio 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 Murphy Radio Ltd filed Critical Murphy Radio Ltd
Priority to GB31332/54A priority Critical patent/GB790219A/en
Priority to US542359A priority patent/US2908746A/en
Priority to FR1144625D priority patent/FR1144625A/en
Publication of GB790219A publication Critical patent/GB790219A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/26—Time-delay networks
    • H03H11/265—Time-delay networks with adjustable delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level

Abstract

790,219. Phase measurement. MURPHY RADIO, Ltd. Oct. 27, 1955 [Oct. 29, 1954], No. 31332/54. Class 37. [Also in Group XL (b)] Incoming waves, the phase relation of which is to be determined, are supplied to lines 21, 22 both connected to a phase discriminator 23. A delay line 6 whose delay may be varied by a D.C. excitation current from a source 25 (see Group XL (b)) is inserted in the .line 22. By variation in the exciting current controlled by a rheostat 26 the wave in line 22 may be brought into phase with that in line 21 and the output of the discriminator reduced to zero. The rheostat 26 may be calibrated in terms of phase difference.
GB31332/54A 1954-10-29 1954-10-29 Variable reactance circuit elements and applications thereof Expired GB790219A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB31332/54A GB790219A (en) 1954-10-29 1954-10-29 Variable reactance circuit elements and applications thereof
US542359A US2908746A (en) 1954-10-29 1955-10-24 Variable delay line
FR1144625D FR1144625A (en) 1954-10-29 1955-10-28 circuit element for television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31332/54A GB790219A (en) 1954-10-29 1954-10-29 Variable reactance circuit elements and applications thereof

Publications (1)

Publication Number Publication Date
GB790219A true GB790219A (en) 1958-02-05

Family

ID=10321555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31332/54A Expired GB790219A (en) 1954-10-29 1954-10-29 Variable reactance circuit elements and applications thereof

Country Status (3)

Country Link
US (1) US2908746A (en)
FR (1) FR1144625A (en)
GB (1) GB790219A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092793A (en) * 1959-09-28 1963-06-04 Bendix Corp Phase shift apparatus adjustable by movement of dielectric slug
US3085214A (en) * 1960-07-21 1963-04-09 G C Dewey & Co Inc Electrical delay line with capacitive pick-off
DE1590675C3 (en) * 1965-10-01 1974-07-18 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm Waveguide
US3479621A (en) * 1967-05-29 1969-11-18 Kabel Metallwerke Ghh Form stabilized wave guides
DE3907680A1 (en) * 1989-03-09 1990-09-20 Siemens Ag Delay element

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200263A (en) * 1933-10-23 1940-05-14 Kramolin Leon Ladislaus De Variable reactor
DE748787C (en) * 1939-01-18 1944-11-08 Runtime coil switched as a quadrupole
DE719948C (en) * 1940-03-30 1942-04-22 Telefungken Ges Fuer Drahtlose Double helix transit time coil
US2650350A (en) * 1948-11-04 1953-08-25 Gen Electric Angular modulating system
US2716736A (en) * 1949-12-08 1955-08-30 Harold B Rex Saturable reactor
US2619537A (en) * 1950-07-28 1952-11-25 Rca Corp High-frequency delay device
US2742613A (en) * 1951-07-26 1956-04-17 Cgs Lab Inc Variable time delay system

Also Published As

Publication number Publication date
US2908746A (en) 1959-10-13
FR1144625A (en) 1957-10-16

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