FR820760A - Electric wave transmission networks - Google Patents

Electric wave transmission networks

Info

Publication number
FR820760A
FR820760A FR820760DA FR820760A FR 820760 A FR820760 A FR 820760A FR 820760D A FR820760D A FR 820760DA FR 820760 A FR820760 A FR 820760A
Authority
FR
France
Prior art keywords
wave transmission
electric wave
transmission networks
networks
electric
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 FR820760A publication Critical patent/FR820760A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used
    • H04B3/143—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers
    • H04B3/145—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers variable equalisers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Filters And Equalizers (AREA)
FR820760D 1936-01-30 1937-01-30 Electric wave transmission networks Expired FR820760A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61497A US2096027A (en) 1936-01-30 1936-01-30 Attenuation equalizer
US165055A US2153743A (en) 1936-01-30 1937-09-22 Attenuation equalizer

Publications (1)

Publication Number Publication Date
FR820760A true FR820760A (en) 1937-11-18

Family

ID=26724426

Family Applications (2)

Application Number Title Priority Date Filing Date
FR820760D Expired FR820760A (en) 1936-01-30 1937-01-30 Electric wave transmission networks
FR49867D Expired FR49867E (en) 1936-01-30 1938-09-21 Electric wave transmission networks

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR49867D Expired FR49867E (en) 1936-01-30 1938-09-21 Electric wave transmission networks

Country Status (5)

Country Link
US (2) US2096027A (en)
BE (1) BE469067A (en)
DE (1) DE881528C (en)
FR (2) FR820760A (en)
GB (2) GB469067A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2128152A1 (en) * 1971-03-08 1972-10-20 Lannionnais Electronique

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621253A (en) * 1939-07-07 1952-12-09 Int Standard Electric Corp Electrical wave transmission system
DE863362C (en) * 1942-08-18 1953-01-15 Siemens Ag Frequency-dependent network with changeable frequency response
US2698420A (en) * 1947-08-11 1954-12-28 Telephone Mfg Co Ltd Electric impedance network
GB645011A (en) * 1947-08-11 1950-10-25 Telephone Mfg Co Ltd Improvements in and relating to electric impedance networks
US2510283A (en) * 1949-01-18 1950-06-06 Bell Telephone Labor Inc Variable equalizer
NL149811B (en) * 1949-04-12 Procter & Gamble PROCESS FOR PREPARING A METHYLENE DIPHOSPHONIC ACID COMPOUND WITH DETERGENT REINFORCING ACTION.
BE507449A (en) * 1950-11-30
US2694184A (en) * 1951-03-16 1954-11-09 Bell Telephone Labor Inc Equalizer
US2738465A (en) * 1951-05-05 1956-03-13 Bell Telephone Labor Inc Equalizer
BE511542A (en) * 1951-05-21
BE518323A (en) * 1952-03-12
US2683777A (en) * 1952-03-27 1954-07-13 Bell Telephone Labor Inc Automatic control of amplification in long distance transmission systems
DE974866C (en) * 1952-12-12 1961-05-18 Siemens Ag Arrangement for equalizing the temperature-dependent change in attenuation of lines
US2867774A (en) * 1952-12-17 1959-01-06 Bell Telephone Labor Inc Gain regulator for carrier systems
NL86023C (en) * 1953-03-16
FR1109931A (en) * 1953-08-13 1956-02-03 Muirhead & Co Ltd Improvements to weakening networks
NL182556B (en) * 1953-11-04 Pechiney Aluminium METHOD FOR THE MANUFACTURE OF AL2O3 AGGLOMERATES WITH HIGH MECHANICAL RESISTANCE.
US2792552A (en) * 1953-11-27 1957-05-14 Bell Telephone Labor Inc Attenuation equalizer
FR1116277A (en) * 1956-01-06 1956-05-07 Cie Ind Des Telephones Improvements to adjustable correctors
US2926314A (en) * 1956-07-23 1960-02-23 Itt Adjustable equalizer
DE1242272B (en) * 1959-01-13 1967-06-15 Standard Elektrik Lorenz Ag Arrangement for adjustable, frequency-dependent amplitude equalization in transmission systems
FR1399686A (en) * 1964-04-08 1965-05-21 Active electric filters
GB1114949A (en) * 1967-01-04 1968-05-22 Standard Telephones Cables Ltd Negative feedback amplifiers
US3593211A (en) * 1967-07-17 1971-07-13 Nippon Electric Co Adjustable attenuation equalizer
DE1297154B (en) * 1968-03-22 1969-06-12 Siemens Ag Ground equalizer for transmission systems
US3890589A (en) * 1971-06-30 1975-06-17 Nippon Electric Co Variable resistor
US4027259A (en) * 1976-06-14 1977-05-31 Gte Automatic Electric Laboratories Incorporated Line equalizer with differentially controlled complementary constant resistance networks
DE3033762C2 (en) * 1980-09-08 1983-04-14 Siemens AG, 1000 Berlin und 8000 München Equalizer circuit for communication signals
DE3331006A1 (en) * 1983-08-18 1985-03-07 ANT Nachrichtentechnik GmbH, 7150 Backnang TIME DISCRETE VARIABLE EQUALIZER
IT1186383B (en) * 1985-11-20 1987-11-26 Gte Telecom Spa REFINEMENTS FOR PIN DIODE ATTENUATORS
US7394331B2 (en) 2005-08-05 2008-07-01 Evelina F Yeung Programmable passive equalizer
US8558636B2 (en) * 2007-03-30 2013-10-15 Intel Corporation Package embedded equalizer
US7760013B2 (en) * 2008-02-06 2010-07-20 Analog Devices, Inc. Transadmittance and filter having a gain function
US8976981B2 (en) * 2010-10-07 2015-03-10 Blackberry Limited Circuit, system and method for isolating a transducer from an amplifier in an electronic device
CN109412554B (en) * 2018-09-22 2023-03-10 复旦大学 Broadband high-precision numerical control active attenuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2128152A1 (en) * 1971-03-08 1972-10-20 Lannionnais Electronique

Also Published As

Publication number Publication date
DE881528C (en) 1953-07-02
BE469067A (en) 1946-12-31
FR49867E (en) 1939-08-22
GB469067A (en) 1937-07-19
US2153743A (en) 1939-04-11
US2096027A (en) 1937-10-19
GB508341A (en) 1939-06-29

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