FR653988A - Improvements in radiotelephone communications - Google Patents

Improvements in radiotelephone communications

Info

Publication number
FR653988A
FR653988A FR653988DA FR653988A FR 653988 A FR653988 A FR 653988A FR 653988D A FR653988D A FR 653988DA FR 653988 A FR653988 A FR 653988A
Authority
FR
France
Prior art keywords
radiotelephone communications
radiotelephone
communications
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)
Inventor
Edwin H Armstrong
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 filed Critical
Application granted granted Critical
Publication of FR653988A publication Critical patent/FR653988A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
FR653988D 1927-05-18 1928-05-08 Improvements in radiotelephone communications Expired FR653988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US192320A US1941447A (en) 1927-05-18 1927-05-18 Radio telephone signaling

Publications (1)

Publication Number Publication Date
FR653988A true FR653988A (en) 1929-03-29

Family

ID=22709165

Family Applications (1)

Application Number Title Priority Date Filing Date
FR653988D Expired FR653988A (en) 1927-05-18 1928-05-08 Improvements in radiotelephone communications

Country Status (2)

Country Link
US (1) US1941447A (en)
FR (1) FR653988A (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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB509820A (en) * 1937-11-19 1939-07-19 Edmond Maurice Deloraine Improvements in or relating to electric signalling systems
US2962662A (en) * 1945-05-15 1960-11-29 Luther P Gieseler Method and means for simulating a transient signal

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
US1941447A (en) 1933-12-26

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