DK511784A - sound amplification - Google Patents

sound amplification Download PDF

Info

Publication number
DK511784A
DK511784A DK511784A DK511784A DK511784A DK 511784 A DK511784 A DK 511784A DK 511784 A DK511784 A DK 511784A DK 511784 A DK511784 A DK 511784A DK 511784 A DK511784 A DK 511784A
Authority
DK
Denmark
Prior art keywords
sound amplification
amplification
sound
Prior art date
Application number
DK511784A
Other languages
Danish (da)
Other versions
DK511784D0 (en
Inventor
Michael Walker
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of DK511784D0 publication Critical patent/DK511784D0/en
Publication of DK511784A publication Critical patent/DK511784A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
DK511784A 1983-10-28 1984-10-26 sound amplification DK511784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833339108 DE3339108A1 (en) 1983-10-28 1983-10-28 SOUND PLAYING SYSTEM

Publications (2)

Publication Number Publication Date
DK511784D0 DK511784D0 (en) 1984-10-26
DK511784A true DK511784A (en) 1985-04-29

Family

ID=6212935

Family Applications (1)

Application Number Title Priority Date Filing Date
DK511784A DK511784A (en) 1983-10-28 1984-10-26 sound amplification

Country Status (5)

Country Link
EP (1) EP0140333A3 (en)
JP (1) JPS60111597A (en)
DE (1) DE3339108A1 (en)
DK (1) DK511784A (en)
ES (1) ES8604381A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3836745A1 (en) * 1988-10-28 1990-05-03 Standard Elektrik Lorenz Ag METHOD AND DEVICE FOR LINEARIZING THE FREQUENCY GEAR OF A SPEAKER SYSTEM
DE19533260A1 (en) * 1995-09-08 1997-03-13 Siemens Ag Dynamic control of low frequency signals
US9790538B2 (en) 2013-03-07 2017-10-17 Apdn (B.V.I.) Inc. Alkaline activation for immobilization of DNA taggants
US10741034B2 (en) 2006-05-19 2020-08-11 Apdn (B.V.I.) Inc. Security system and method of marking an inventory item and/or person in the vicinity
US8940485B2 (en) 2008-11-12 2015-01-27 Apdn (B.V.I.) Inc. Methods for genotyping mature cotton fibers and textiles
US9266370B2 (en) 2012-10-10 2016-02-23 Apdn (B.V.I) Inc. DNA marking of previously undistinguished items for traceability
US9297032B2 (en) 2012-10-10 2016-03-29 Apdn (B.V.I.) Inc. Use of perturbants to facilitate incorporation and recovery of taggants from polymerized coatings
US9963740B2 (en) 2013-03-07 2018-05-08 APDN (B.V.I.), Inc. Method and device for marking articles
CA2940655C (en) 2014-03-18 2020-07-07 Apdn (B.V.I.) Inc. Encrypted optical markers for security applications
US10760182B2 (en) 2014-12-16 2020-09-01 Apdn (B.V.I.) Inc. Method and device for marking fibrous materials

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1278671A (en) * 1960-10-31 1961-12-15 Process intended to eliminate distortions by harmonics at the output of electronic amplifiers, and assembly for implementing this process
FR2199241B1 (en) * 1972-09-11 1978-11-10 Matsushita Electric Ind Co Ltd
FR2321811A1 (en) * 1975-08-19 1977-03-18 Vissiere Charles Correction circuit for electroacoustic transducer - has two differential amplifiers across transducer feeding error signal back to signal amplifier
DE2604939C3 (en) * 1976-02-09 1978-07-27 Ibm Deutschland Gmbh, 7000 Stuttgart Method for producing at least one through hole, in particular a nozzle for inkjet printers
DE2756943A1 (en) * 1977-12-21 1979-06-28 Ulrich F A Dipl Ing Fusban Automatic volume control for public address system - has microphone for each loudspeaker detecting background noise to change amplitude of wanted signal
JPS553261A (en) * 1978-06-22 1980-01-11 Clarion Co Ltd Automatic sound volume adjusting device

Also Published As

Publication number Publication date
ES537155A0 (en) 1985-12-16
EP0140333A2 (en) 1985-05-08
DK511784D0 (en) 1984-10-26
EP0140333A3 (en) 1985-10-02
JPS60111597A (en) 1985-06-18
ES8604381A1 (en) 1985-12-16
DE3339108A1 (en) 1985-05-09

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Legal Events

Date Code Title Description
ATS Application withdrawn