FR699169A - Improvements to electrical signal transmission systems - Google Patents

Improvements to electrical signal transmission systems

Info

Publication number
FR699169A
FR699169A FR699169DA FR699169A FR 699169 A FR699169 A FR 699169A FR 699169D A FR699169D A FR 699169DA FR 699169 A FR699169 A FR 699169A
Authority
FR
France
Prior art keywords
electrical signal
signal transmission
transmission systems
systems
electrical
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR699169A publication Critical patent/FR699169A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/04—Means in or combined with modulating stage for reducing amplitude modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
    • H04B14/006—Angle modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplitude Modulation (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
FR699169D 1929-07-22 1930-07-21 Improvements to electrical signal transmission systems Expired FR699169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US379892A US1917102A (en) 1929-07-22 1929-07-22 Frequency modulation

Publications (1)

Publication Number Publication Date
FR699169A true FR699169A (en) 1931-02-11

Family

ID=23499134

Family Applications (1)

Application Number Title Priority Date Filing Date
FR699169D Expired FR699169A (en) 1929-07-22 1930-07-21 Improvements to electrical signal transmission systems

Country Status (3)

Country Link
US (1) US1917102A (en)
FR (1) FR699169A (en)
GB (1) GB364603A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924809C (en) * 1933-01-24 1955-03-07 Esther Marion Armstrong Method for reducing spectrum-like interference during wireless transmission of the listening frequency band by means of frequency-modulated high-frequency oscillations

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE927749C (en) * 1942-05-12 1955-05-16 Studiengesellschaft Fuer Elekt Circuit arrangement for limiting the amplitude
US2489284A (en) * 1945-11-13 1949-11-29 John C Geist Frequency modulation radio transmitter
US2498809A (en) * 1946-10-09 1950-02-28 Gen Railway Signal Co Signal generator
US2682639A (en) * 1950-06-09 1954-06-29 Gen Railway Signal Co Radio communications apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924809C (en) * 1933-01-24 1955-03-07 Esther Marion Armstrong Method for reducing spectrum-like interference during wireless transmission of the listening frequency band by means of frequency-modulated high-frequency oscillations

Also Published As

Publication number Publication date
US1917102A (en) 1933-07-04
GB364603A (en) 1932-01-06

Similar Documents

Publication Publication Date Title
FR38791E (en) Improvements to electrical signaling systems
FR689304A (en) Improvements to electrical signaling systems
FR699169A (en) Improvements to electrical signal transmission systems
FR606884A (en) Improvements to thermometric systems
FR627496A (en) Improvements to electrical transmission protection systems
FR693964A (en) Improvements to Combined Electric Transmission Systems
FR698983A (en) Improvements to electrical transmission systems
FR682174A (en) Improvements to electrical transmission systems
FR817231A (en) Improvements to electrical signal transmission systems
FR862398A (en) Improvements to electrical signal transmission systems
FR710472A (en) Improvements to electrical signal systems
FR808524A (en) Improvements to electrical signal transmission systems
FR630110A (en) Improvements to telephone systems
FR619911A (en) Improvements to radio-electric receiver systems
FR701306A (en) Improvements to television systems
FR673466A (en) Improvements to electrical signal systems
FR40709E (en) Improvements to electrical signal transmission systems
FR700561A (en) Improvements to wave signaling systems
FR715569A (en) Improvements to electrical transmission systems
FR679962A (en) Improvements to take change systems
FR683505A (en) Improvements to electrical transmission systems
FR806769A (en) Improvements to electrical signal transmission systems
FR718177A (en) Improvements to electrical transmission systems
FR684571A (en) Improvements to transmission systems
FR642998A (en) Improvements to radiotelegraph communications systems