FR1137712A - Single sideband switchgear for transmission of telephone signals - Google Patents

Single sideband switchgear for transmission of telephone signals

Info

Publication number
FR1137712A
FR1137712A FR1137712DA FR1137712A FR 1137712 A FR1137712 A FR 1137712A FR 1137712D A FR1137712D A FR 1137712DA FR 1137712 A FR1137712 A FR 1137712A
Authority
FR
France
Prior art keywords
switchgear
transmission
single sideband
telephone signals
telephone
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1137712A publication Critical patent/FR1137712A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/68—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for wholly or partially suppressing the carrier or one side band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmitters (AREA)
FR1137712D 1954-10-25 1955-10-24 Single sideband switchgear for transmission of telephone signals Expired FR1137712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL333375X 1954-10-25

Publications (1)

Publication Number Publication Date
FR1137712A true FR1137712A (en) 1957-06-03

Family

ID=19784450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1137712D Expired FR1137712A (en) 1954-10-25 1955-10-24 Single sideband switchgear for transmission of telephone signals

Country Status (7)

Country Link
US (1) US2907831A (en)
BE (1) BE542288A (en)
CH (1) CH333375A (en)
DE (1) DE976953C (en)
FR (1) FR1137712A (en)
GB (1) GB797696A (en)
NL (2) NL102002C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1198177A (en) * 1958-06-05 1959-12-04 Csf New receiver for single sideband signal without carrier wave
NL231827A (en) * 1958-09-30
US3083337A (en) * 1959-09-25 1963-03-26 Western Union Telegraph Co Vestigial sideband transmission
US3112462A (en) * 1959-10-02 1963-11-26 Philips Corp Volume compression by pulse duration modulation and subsequent demodulation
NL112263C (en) * 1959-10-02 1966-01-17 Philips Nv Device for dynamic expansion of information signals
US3066259A (en) * 1961-01-03 1962-11-27 Gen Dynamics Corp Suppressed carrier transmitter
GB985807A (en) * 1961-02-03 1965-03-10 Post Office Angular modulation transmission systems
US3147437A (en) * 1962-03-13 1964-09-01 Robertshaw Controls Co Single side band radio carrier retrieval system
US3377559A (en) * 1965-12-30 1968-04-09 Automatic Elect Lab Compandoring techniques for high-frequency radio circuits
DE2221892C2 (en) * 1972-05-04 1979-12-20 Siemens Ag, 1000 Berlin U. 8000 Muenchen Circuit arrangement for carrier recovery in TF video and data transmission systems
US4313211A (en) * 1979-08-13 1982-01-26 Bell Telephone Laboratories, Incorporated Single sideband receiver with pilot-based feed forward correction for motion-induced distortion
US5222250A (en) * 1992-04-03 1993-06-22 Cleveland John F Single sideband radio signal processing system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA460135A (en) * 1949-10-04 Radio Corporation Of America Receiving system for electric waves
US1721574A (en) * 1925-11-20 1929-07-23 American Telephone & Telegraph Transmission level regulation
US2246184A (en) * 1938-10-22 1941-06-17 Rca Corp Single side band transmitter
DE754469C (en) * 1941-04-09 1954-07-26 Siemens & Halske A G Method and arrangement for generating a frequency-modulated oscillation
US2653221A (en) * 1949-12-01 1953-09-22 Zenith Radio Corp Suppressed carrier radio communication system
US2666133A (en) * 1951-08-16 1954-01-12 Rca Corp Single sideband transmitter
DE878381C (en) * 1951-08-19 1953-06-01 Siemens Ag Method and device for electrical communication
US2761105A (en) * 1952-03-27 1956-08-28 Murray G Crosby Sideband transmitter
US2705775A (en) * 1952-03-27 1955-04-05 Murray G Crosby Modulated wave amplifier

Also Published As

Publication number Publication date
NL191811A (en)
BE542288A (en)
GB797696A (en) 1958-07-09
DE976953C (en) 1964-10-15
CH333375A (en) 1958-10-15
US2907831A (en) 1959-10-06
NL102002C (en)

Similar Documents

Publication Publication Date Title
FR63409E (en) Electrical signal transmission systems
FR1137712A (en) Single sideband switchgear for transmission of telephone signals
FR1158054A (en) Transmission system for television signals
FR1133016A (en) Polarization circuits for television or similar signals
FR1110465A (en) Signal rocket
FR1132454A (en) Device for reducing distortion of electrical signals
FR1188451A (en) System for signal transmission
CH323470A (en) Apparatus for the transmission of telegraph signals
CH347229A (en) Multi-channel signal transmission system
FR1137711A (en) Single sideband receiver for telephone signals
FR1146125A (en) Transmission system for television signals
FR1246067A (en) Simplified symmetrical sensing circuit receiver for frequency modulated waves
CH341203A (en) Transition device for guided waves
FR1149097A (en) Aerial improvements for micrometric waves
FR1158759A (en) Transmission system for television signals
CH360711A (en) Receiver for an encrypted signal
FR1072624A (en) Voice frequency signal transmission circuit
FR1144201A (en) Powerline telephony transmitter for the transmission of single-sideband telephone signals
FR1153591A (en) Narrow bandwidth television signal transmission system
FR1156217A (en) Electrical signal transmission system
FR1128814A (en) Signal transmission installation
FR1180892A (en) Coupling circuit for waves
FR1113389A (en) Stabilized receiver for frequency modulated multiplex waves
FR1192150A (en) Signaling system for powerline telephone systems
FR1104474A (en) Time signal transmission set