GB334899A - Improvements in electrical signal or speech transmission systems - Google Patents

Improvements in electrical signal or speech transmission systems

Info

Publication number
GB334899A
GB334899A GB17950/29A GB1795029A GB334899A GB 334899 A GB334899 A GB 334899A GB 17950/29 A GB17950/29 A GB 17950/29A GB 1795029 A GB1795029 A GB 1795029A GB 334899 A GB334899 A GB 334899A
Authority
GB
United Kingdom
Prior art keywords
valve
circuit
valves
condenser
signal
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
GB17950/29A
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Publication of GB334899A publication Critical patent/GB334899A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/06—Control of transmission; Equalising by the transmitted signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Amplifiers (AREA)
GB17950/29A 1928-12-29 1929-06-11 Improvements in electrical signal or speech transmission systems Expired GB334899A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US329203A US1853070A (en) 1928-12-29 1928-12-29 Equalization of power level in alpha signal transmitting system

Publications (1)

Publication Number Publication Date
GB334899A true GB334899A (en) 1930-09-11

Family

ID=23284330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17950/29A Expired GB334899A (en) 1928-12-29 1929-06-11 Improvements in electrical signal or speech transmission systems

Country Status (3)

Country Link
US (1) US1853070A (fr)
FR (1) FR679921A (fr)
GB (1) GB334899A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959283C (de) * 1953-03-25 1957-03-07 Siemens Ag Regelschaltung zur kontinuierlichen AEnderung des Daempfungsmasses eines Daempfungsgliedes
US3182137A (en) * 1961-08-02 1965-05-04 Donald C Beatty Gain-adjusting audio level terminator

Also Published As

Publication number Publication date
FR679921A (fr) 1930-04-23
US1853070A (en) 1932-04-12

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