GB161256A - Improvements in and relating to signalling systems applicable to wireless receiving systems and other purposes - Google Patents

Improvements in and relating to signalling systems applicable to wireless receiving systems and other purposes

Info

Publication number
GB161256A
GB161256A GB15120A GB15120A GB161256A GB 161256 A GB161256 A GB 161256A GB 15120 A GB15120 A GB 15120A GB 15120 A GB15120 A GB 15120A GB 161256 A GB161256 A GB 161256A
Authority
GB
United Kingdom
Prior art keywords
audible
systems
valves
continuous
applicable
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
GB15120A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB15120A priority Critical patent/GB161256A/en
Publication of GB161256A publication Critical patent/GB161256A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed

Landscapes

  • Telephone Set Structure (AREA)

Abstract

161,256. British Thomson - Houston Co., Ltd., (General Electric Co.). Jan. 2, 1920. Thermionic detectors; audible reception of unmodulated continuous waves. - Continuous current, or current of sub-audible frequency, is detected in a telephone 18 by an arrangement comprising two thermionic valves 1, 2, the grid circuits of which are influenced by an auxiliary source 21 of audible frequency. The plate circuits of the two valves are oppositely coupled to the telephone circuit, so that when resistances 4, 11, 15 have been suitably adjusted no note is heard, but when a source 17 of continuous or sub-audible current is connected between the two grids, the valves are unbalanced and the audible frequency is heard in the telephone. The invention is applicable in the reception of continuous waves, as a substitute for heterodyning, &c.
GB15120A 1920-01-02 1920-01-02 Improvements in and relating to signalling systems applicable to wireless receiving systems and other purposes Expired GB161256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15120A GB161256A (en) 1920-01-02 1920-01-02 Improvements in and relating to signalling systems applicable to wireless receiving systems and other purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15120A GB161256A (en) 1920-01-02 1920-01-02 Improvements in and relating to signalling systems applicable to wireless receiving systems and other purposes

Publications (1)

Publication Number Publication Date
GB161256A true GB161256A (en) 1921-04-04

Family

ID=9699301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15120A Expired GB161256A (en) 1920-01-02 1920-01-02 Improvements in and relating to signalling systems applicable to wireless receiving systems and other purposes

Country Status (1)

Country Link
GB (1) GB161256A (en)

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