GB359760A - Improvements in or relating to heterodyne receiving systems - Google Patents

Improvements in or relating to heterodyne receiving systems

Info

Publication number
GB359760A
GB359760A GB34992/30A GB3499230A GB359760A GB 359760 A GB359760 A GB 359760A GB 34992/30 A GB34992/30 A GB 34992/30A GB 3499230 A GB3499230 A GB 3499230A GB 359760 A GB359760 A GB 359760A
Authority
GB
United Kingdom
Prior art keywords
oscillator
currents
circuit
signal
anode
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
GB34992/30A
Other languages
English (en)
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB359760A publication Critical patent/GB359760A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/16—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of discharge tubes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1416—Balanced arrangements with discharge tubes having more than two electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Superheterodyne Receivers (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Transmitters (AREA)
GB34992/30A 1929-11-20 1930-11-20 Improvements in or relating to heterodyne receiving systems Expired GB359760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US408425A US1853179A (en) 1929-11-20 1929-11-20 Superheterodyne receiver control

Publications (1)

Publication Number Publication Date
GB359760A true GB359760A (en) 1931-10-29

Family

ID=23616240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34992/30A Expired GB359760A (en) 1929-11-20 1930-11-20 Improvements in or relating to heterodyne receiving systems

Country Status (3)

Country Link
US (1) US1853179A (enrdf_load_stackoverflow)
GB (1) GB359760A (enrdf_load_stackoverflow)
NL (1) NL36031C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH246142A (de) * 1943-10-18 1946-12-15 Philips Nv Schaltung, welche mindestens in einer Betriebsstellung zum Empfang von Hochfrequenzschwingungen dient.

Also Published As

Publication number Publication date
US1853179A (en) 1932-04-12
NL36031C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US2231997A (en) Frequency discriminator
US2414795A (en) Ringing control arrangement for two-way carrier telephone terminals
US2205243A (en) Amplifier
US2282971A (en) Signal detecting system
GB434902A (en) Improvements in or relating to radio and like receivers
ES351041A1 (es) Dispositivo transformador hibrido de dos a cuatro hilos de equilibrio de impedancia automatico.
GB359760A (en) Improvements in or relating to heterodyne receiving systems
Norgaard The phase-shift method of single-sideband signal reception
GB473618A (en) Improved automatic tuning control means for modulated carrier wave receivers
GB360289A (en) Improvements in or relating to heterodyne systems suitable for use in wireless reception
US2528182A (en) Frequency discriminator network
US1770143A (en) Radio amplifying system
US2414440A (en) Voice frequency ringer
US2928055A (en) Single sideband modulator
US2281621A (en) Band pass filter
US2201365A (en) Duplex vacuum-tube repeater
US1834274A (en) Radio antenna system
US1800962A (en) Electric circuit
US3525046A (en) Single local oscillator for dual conversion system
GB426227A (en) Improvements in or relating to radio signalling
US1315584A (en) Selective receiving system for radiant energy
US2103079A (en) Wave signaling system
US1976877A (en) Synchronization system
US1717627A (en) Balanced bridge for autodyne receiver circuits
US1521777A (en) Radio system