CA938724A - Dynamic presence equalizer - Google Patents

Dynamic presence equalizer

Info

Publication number
CA938724A
CA938724A CA113924A CA113924A CA938724A CA 938724 A CA938724 A CA 938724A CA 113924 A CA113924 A CA 113924A CA 113924 A CA113924 A CA 113924A CA 938724 A CA938724 A CA 938724A
Authority
CA
Canada
Prior art keywords
equalizer
dynamic presence
dynamic
presence equalizer
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
CA113924A
Other versions
CA113924S (en
Inventor
L. Torick Emil
G. Allen Richard
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.)
CBS Broadcasting Inc
Original Assignee
Columbia Broadcasting System Inc
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 Columbia Broadcasting System Inc filed Critical Columbia Broadcasting System Inc
Application granted granted Critical
Publication of CA938724A publication Critical patent/CA938724A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03G5/22—Automatic control in untuned amplifiers having semiconductor devices
CA113924A 1970-06-18 1971-05-26 Dynamic presence equalizer Expired CA938724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4721470A 1970-06-18 1970-06-18

Publications (1)

Publication Number Publication Date
CA938724A true CA938724A (en) 1973-12-18

Family

ID=21947696

Family Applications (1)

Application Number Title Priority Date Filing Date
CA113924A Expired CA938724A (en) 1970-06-18 1971-05-26 Dynamic presence equalizer

Country Status (2)

Country Link
US (1) US3668322A (en)
CA (1) CA938724A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441203A (en) * 1982-03-04 1984-04-03 Fleming Mark C Music speech filter
JPS5983200A (en) * 1982-11-04 1984-05-14 ヤマハ株式会社 Automatic rhythm transformer
JPS5973797U (en) * 1982-11-08 1984-05-18 ヤマハ株式会社 automatic rhythm playing device
GB8806434D0 (en) * 1988-03-18 1988-04-20 Pieters L A Current-driving amplifiers
US6862429B2 (en) * 2001-01-26 2005-03-01 Edward Efron Audio production, satellite uplink and radio broadcast studio
US9515629B2 (en) * 2013-05-16 2016-12-06 Apple Inc. Adaptive audio equalization for personal listening devices
WO2016133988A1 (en) * 2015-02-19 2016-08-25 Dolby Laboratories Licensing Corporation Loudspeaker-room equalization with perceptual correction of spectral dips

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521507A (en) * 1946-04-12 1950-09-05 Bell Telephone Labor Inc Regulator circuit
US2761897A (en) * 1951-11-07 1956-09-04 Jones Robert Clark Electronic device for automatically discriminating between speech and music forms
US3281723A (en) * 1964-02-03 1966-10-25 Fairchild Recording Equipment Dynamic equalizer circuits having a light dependent cell for producing a relatively constant apparent loudness effect
US3292116A (en) * 1964-03-20 1966-12-13 Hazeltine Research Inc Dynamic speech equalizing system having a control circuit that separates and compares the high and low frequency energy
US3497622A (en) * 1966-10-21 1970-02-24 Zenith Radio Corp Automatic gain control

Also Published As

Publication number Publication date
US3668322A (en) 1972-06-06

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