GB264866A - Improvements in wireless receiving circuits - Google Patents

Improvements in wireless receiving circuits

Info

Publication number
GB264866A
GB264866A GB1864/27A GB186427A GB264866A GB 264866 A GB264866 A GB 264866A GB 1864/27 A GB1864/27 A GB 1864/27A GB 186427 A GB186427 A GB 186427A GB 264866 A GB264866 A GB 264866A
Authority
GB
United Kingdom
Prior art keywords
valve
frequency
tuned
another
aerials
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
GB1864/27A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB264866A publication Critical patent/GB264866A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

264,866. Porte, R. Jan. 21, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Atmospherics and undesired signals, eliminating or limiting; thermionic amplifiers and detectors. - Interference is eliminated by balancing the currents produced in two aerials, one being tuned to the signal and one to another frequency, frequency changing circuits being arranged to cause the frequencies used in the balancing circuit to be equal to one another. The Figure shows an aerial 1 tuned bv a condenser 2 to the signal connected to a high frequency amplifying valve 4 the output from which is changed in frequency by the two grid valve 9 and applied to the valve 25. Another aerial 20 tuned by condenser 21 to the intermediate frequency is connected to an amplifying valve 23 the output of which is also applied to the valve 25. The effects of the interference cancel and the signals are amplified by valves 26, 34 and detected by the valve 31. The energy collected by both aerials 1, 20 may be changed in frequency before being applied to a balancing circuit and any known means of frequency changing may be used.
GB1864/27A 1926-01-21 1927-01-21 Improvements in wireless receiving circuits Expired GB264866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR621731T 1926-01-21

Publications (1)

Publication Number Publication Date
GB264866A true GB264866A (en) 1927-06-23

Family

ID=8985323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1864/27A Expired GB264866A (en) 1926-01-21 1927-01-21 Improvements in wireless receiving circuits

Country Status (2)

Country Link
FR (2) FR621731A (en)
GB (1) GB264866A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520184A (en) * 1941-11-08 1950-08-29 Int Standard Electric Corp Electrical wave signaling system
GB892532A (en) * 1957-06-28 1962-03-28 Multitone Electric Company Ltd Improvements in communication by electro-magnetic induction
US3015774A (en) * 1957-12-17 1962-01-02 Okonite Co Corona-testing of electric insulation

Also Published As

Publication number Publication date
FR35726E (en) 1930-03-27
FR621731A (en) 1927-05-16

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