BE469067A - - Google Patents

Info

Publication number
BE469067A
BE469067A BE469067DA BE469067A BE 469067 A BE469067 A BE 469067A BE 469067D A BE469067D A BE 469067DA BE 469067 A BE469067 A BE 469067A
Authority
BE
Belgium
Application number
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
Publication of BE469067A publication Critical patent/BE469067A/xx

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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Filters And Equalizers (AREA)
BE469067D 1936-01-30 1946-11-08 BE469067A (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
BE469067A true BE469067A (en) 1946-12-31

Family

ID=26724426

Family Applications (1)

Application Number Title Priority Date Filing Date
BE469067D BE469067A (en) 1936-01-30 1946-11-08

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)

Families Citing this family (36)

* 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
GB645012A (en) * 1947-08-11 1950-10-25 Telephone Mfg Co Ltd Improvements in and relating to electric impedance networks
US2698420A (en) * 1947-08-11 1954-12-28 Telephone Mfg Co Ltd Electric impedance network
US2510283A (en) * 1949-01-18 1950-06-06 Bell Telephone Labor Inc Variable equalizer
BE495078A (en) * 1949-04-12
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
NO86475A (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
BE527031A (en) * 1953-03-16
FR1109931A (en) * 1953-08-13 1956-02-03 Muirhead & Co Ltd Improvements to weakening networks
NL97465C (en) * 1953-11-04
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
FR2128152B1 (en) * 1971-03-08 1974-02-15 Lannionnais Electronique
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

Also Published As

Publication number Publication date
FR820760A (en) 1937-11-18
DE881528C (en) 1953-07-02
US2153743A (en) 1939-04-11
GB469067A (en) 1937-07-19
GB508341A (en) 1939-06-29
FR49867E (en) 1939-08-22
US2096027A (en) 1937-10-19

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