GB448084A - Improvements in carrier wave signalling systems - Google Patents

Improvements in carrier wave signalling systems

Info

Publication number
GB448084A
GB448084A GB30224/35A GB3022435A GB448084A GB 448084 A GB448084 A GB 448084A GB 30224/35 A GB30224/35 A GB 30224/35A GB 3022435 A GB3022435 A GB 3022435A GB 448084 A GB448084 A GB 448084A
Authority
GB
United Kingdom
Prior art keywords
amplifier
carrier
speech
line
station
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
GB30224/35A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB448084A publication Critical patent/GB448084A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/66—Amplifiers simultaneously generating oscillations of one frequency and amplifying signals of another frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transceivers (AREA)
  • Selective Calling Equipment (AREA)
GB30224/35A 1934-12-14 1935-11-01 Improvements in carrier wave signalling systems Expired GB448084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US448084XA 1934-12-14 1934-12-14

Publications (1)

Publication Number Publication Date
GB448084A true GB448084A (en) 1936-06-02

Family

ID=21934444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30224/35A Expired GB448084A (en) 1934-12-14 1935-11-01 Improvements in carrier wave signalling systems

Country Status (2)

Country Link
GB (1) GB448084A (instruction)
NO (1) NO42193A (instruction)

Also Published As

Publication number Publication date
NO42193A (instruction)

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