BE420493A - - Google Patents

Info

Publication number
BE420493A
BE420493A BE420493DA BE420493A BE 420493 A BE420493 A BE 420493A BE 420493D A BE420493D A BE 420493DA BE 420493 A BE420493 A BE 420493A
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.)
Publication of BE420493A publication Critical patent/BE420493A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1291—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers
    • H03G5/20—Automatic control in untuned amplifiers having discharge tubes
BE420493D 1946-01-17 BE420493A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US645343XA 1946-01-17 1946-01-17

Publications (1)

Publication Number Publication Date
BE420493A true BE420493A (fr)

Family

ID=22056633

Family Applications (2)

Application Number Title Priority Date Filing Date
BE420493D BE420493A (fr) 1946-01-17
BE470828D BE470828A (fr) 1946-01-17

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE470828D BE470828A (fr) 1946-01-17

Country Status (3)

Country Link
US (1) US2606973A (fr)
BE (2) BE470828A (fr)
GB (2) GB645343A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774043A (en) * 1953-03-03 1956-12-11 Jr Oswald G Villard Frequency selective apparatus
US2852750A (en) * 1955-02-25 1958-09-16 Rca Corp Delay line
US3182271A (en) * 1960-12-15 1965-05-04 Aiken William Ross Tone control circuit for emphasizing low volume high and low frequency signals
JPS499371B1 (fr) * 1968-07-19 1974-03-04
US3688010A (en) * 1970-06-11 1972-08-29 Alfred B Freeman Tone modulation system
US3678416A (en) * 1971-07-26 1972-07-18 Richard S Burwen Dynamic noise filter having means for varying cutoff point
US4014237A (en) * 1972-03-01 1977-03-29 Milde Karl F Jr Musical note detecting apparatus
US4584880A (en) * 1984-06-04 1986-04-29 Dymax Corporation Tissue signature tracking tranceiver
US4809338A (en) * 1985-07-05 1989-02-28 Harman International Industries, Incorporated Automotive sound system
US4759065A (en) * 1986-09-22 1988-07-19 Harman International Industries, Incorporated Automotive sound system
US5471527A (en) * 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947822A (en) * 1931-04-15 1934-02-20 Rca Corp Automatic tone control
US1950759A (en) * 1931-05-25 1934-03-13 Frederick E Terman Variable reactance circuit
US2017270A (en) * 1932-10-19 1935-10-15 Rca Corp Electronic tone control
US2002216A (en) * 1933-06-07 1935-05-21 Bell Telephone Labor Inc Wave filter
US2072708A (en) * 1934-08-04 1937-03-02 Hazeltine Corp Amplification control
US2053841A (en) * 1935-08-05 1936-09-08 Continental Oil Co Method and apparatus for making geophysical explorations
US2148030A (en) * 1936-07-25 1939-02-21 Rca Corp Automatic tone control system
US2263683A (en) * 1936-08-28 1941-11-25 Crosley Corp Expander and limiter circuits
US2369952A (en) * 1943-10-23 1945-02-20 Gen Electric Background noise suppressor

Also Published As

Publication number Publication date
GB645343A (en) 1950-11-01
GB643662A (en) 1950-09-27
US2606973A (en) 1952-08-12
BE470828A (fr)

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