FR733626A - Improvements to signaling systems using modulated waves - Google Patents

Improvements to signaling systems using modulated waves

Info

Publication number
FR733626A
FR733626A FR733626DA FR733626A FR 733626 A FR733626 A FR 733626A FR 733626D A FR733626D A FR 733626DA FR 733626 A FR733626 A FR 733626A
Authority
FR
France
Prior art keywords
signaling systems
modulated waves
modulated
waves
signaling
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR733626A publication Critical patent/FR733626A/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
    • H04B14/08—Transmission systems not characterised by the medium used for transmission characterised by the use of a sub-carrier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • 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
    • H04B14/004—Amplitude modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
FR733626D 1930-01-02 1931-06-15 Improvements to signaling systems using modulated waves Expired FR733626A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1907109X 1930-01-02
NL54620A NL34797C (en) 1930-01-02 1930-12-03
FR733626T 1931-06-15

Publications (1)

Publication Number Publication Date
FR733626A true FR733626A (en) 1932-10-08

Family

ID=10893335

Family Applications (1)

Application Number Title Priority Date Filing Date
FR733626D Expired FR733626A (en) 1930-01-02 1931-06-15 Improvements to signaling systems using modulated waves

Country Status (4)

Country Link
US (1) US1907109A (en)
DE (1) DE609540C (en)
FR (1) FR733626A (en)
NL (1) NL34797C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433343A (en) * 1942-03-12 1947-12-30 Int Standard Electric Corp Multichannel electrical communication system
US2621325A (en) * 1946-08-20 1952-12-09 Radio Electr Soc Fr Plural modulation multiplex system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767200C (en) * 1932-12-23 1952-02-14 Siemens & Halske A G Multiple carrier frequency transmission system for speech using two or more modulation, especially over cable lines
DE763148C (en) * 1937-10-26 1954-08-02 Telefunken Gmbh Arrangement for carrier frequency transmission of a television frequency band which also contains very low frequencies
DE889903C (en) * 1939-11-17 1953-09-14 Fernseh Gmbh Television broadcast method
BE445078A (en) * 1941-04-03
GB595712A (en) * 1943-08-02 1947-12-15 Comm Engineering Pty Ltd Multi-channel telephone systems
BE459652A (en) * 1944-05-08 1945-09-29
US2502955A (en) * 1947-03-25 1950-04-04 Hartford Nat Bank & Trust Co Apparatus for deriving from a recurrent wave, a voltage of relatively low fundamental frequency but of the same shape
NL134559C (en) * 1947-09-03
US2662933A (en) * 1951-04-26 1953-12-15 Bell Telephone Labor Inc Multiplex carrier telegraph system
FR1234095A (en) * 1958-09-16 1960-10-14 Fernseh Gmbh Method and devices for recording television signals on magnetic tape
US3678390A (en) * 1968-10-11 1972-07-18 Tokyo Shibaura Electric Co Frequency modulation communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433343A (en) * 1942-03-12 1947-12-30 Int Standard Electric Corp Multichannel electrical communication system
US2621325A (en) * 1946-08-20 1952-12-09 Radio Electr Soc Fr Plural modulation multiplex system

Also Published As

Publication number Publication date
US1907109A (en) 1933-05-02
DE609540C (en) 1935-02-20
NL34797C (en) 1935-03-15

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