FR687771A - High frequency reception method particularly applicable to high frequency telephony - Google Patents

High frequency reception method particularly applicable to high frequency telephony

Info

Publication number
FR687771A
FR687771A FR687771DA FR687771A FR 687771 A FR687771 A FR 687771A FR 687771D A FR687771D A FR 687771DA FR 687771 A FR687771 A FR 687771A
Authority
FR
France
Prior art keywords
high frequency
particularly applicable
reception method
method particularly
telephony
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
Other languages
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR687771A publication Critical patent/FR687771A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
FR687771D 1929-01-16 1930-01-07 High frequency reception method particularly applicable to high frequency telephony Expired FR687771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE687771X 1929-01-16

Publications (1)

Publication Number Publication Date
FR687771A true FR687771A (en) 1930-08-13

Family

ID=6598332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR687771D Expired FR687771A (en) 1929-01-16 1930-01-07 High frequency reception method particularly applicable to high frequency telephony

Country Status (1)

Country Link
FR (1) FR687771A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572216A (en) * 1944-04-01 1951-10-23 Bell Telephone Labor Inc Signal receiving system
US2654832A (en) * 1948-03-26 1953-10-06 Rca Corp Highly selective and stable wide range frequency converting circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572216A (en) * 1944-04-01 1951-10-23 Bell Telephone Labor Inc Signal receiving system
US2654832A (en) * 1948-03-26 1953-10-06 Rca Corp Highly selective and stable wide range frequency converting circuits

Similar Documents

Publication Publication Date Title
FR687771A (en) High frequency reception method particularly applicable to high frequency telephony
FR701491A (en) Frequency multiplication method
FR705954A (en) Method of manufacturing telephone conductors
FR39282E (en) Process for the production of alkaline earth cyanates
FR714405A (en) High frequency oscillator
FR685585A (en) High frequency electrode, especially for electrotherapy
FR676967A (en) Process and tools for the manufacture of stamped screeds and screeds conforming to those obtained by this process
FR695366A (en) Electroplating process
FR698640A (en) Process for the production of methylamine
FR687909A (en) High frequency machine
FR674702A (en) Process of making pâtés
FR704170A (en) Frequency transformer especially applicable to high frequency
FR702024A (en) Distillation process
FR689822A (en) Distillation process
FR563871A (en) High frequency alternator
FR708954A (en) Process for electrolytic pickling of metallic wires, bands, etc.
FR683487A (en) Method of making an anti-rust substance
FR694563A (en) Adjustment method
FR686045A (en) Rolling process
FR677855A (en) Puttying process
FR655917A (en) Frequency change process
FR706545A (en) High frequency telephone system
FR693305A (en) Improvements to high frequency telephony and telegraphy installations
FR698931A (en) Process for the production of 6-arylamino-2-naphthols
FR672971A (en) Manufacturing process of high quality insulating materials