Nova Patents
AT396536T

Systems and methods for protection of audio amplifier circuits

Abstract

The system and method of offering protection from the power failure event in a digital sound amplification system. The amplifier output stage (160) constituted so that one case of the operation of the present invention might be connected to a digital amplifier controller and the above-mentioned controller and an audible signal might be received from the controller concerned, It has 1 or the low pass filter beyond it connected so that a sensor signal might be received from 1 or the sensor (180) beyond it connected to the above-mentioned output stage (160), and the sensor (180) beyond the above 1 or it. This low pass filter ろ波 a sensor signal, it provides a controller with the sensor signal which ろ波 (ed), and it is constituted so that the response in which a program is possible may be offered to the sensor signal which ろ波 (ed). Since this response starts no actions, it is in the range to restriction of amplification of an audible signal, and interception of a system.

Term

No projected expiry on record.

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63 members in 8 offices

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Priority claims
DocumentOfficeKindDate
45642703United States of AmericaP
46977603United States of AmericaP

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US2004184572A1United States of AmericaA1
US2004184573A1United States of AmericaA1
US2004184621A1United States of AmericaA1
US2004184627A1United States of AmericaA1
US2004186602A1United States of AmericaA1
WO2004086609A1World Intellectual Property Organization (WIPO)A1
WO2004086611A2World Intellectual Property Organization (WIPO)A2
WO2004086614A1World Intellectual Property Organization (WIPO)A1
WO2004086616A2World Intellectual Property Organization (WIPO)A2
US2004207466A1United States of AmericaA1
WO2004086616A3World Intellectual Property Organization (WIPO)A3
WO2004102791A1World Intellectual Property Organization (WIPO)A1
WO2004102792A1World Intellectual Property Organization (WIPO)A1
WO2004086611A3World Intellectual Property Organization (WIPO)A3
EP1606875A1European Patent Office (EPO)A1
EP1606884A2European Patent Office (EPO)A2
EP1609241A2European Patent Office (EPO)A2
EP1623501A1European Patent Office (EPO)A1
US7023268B1United States of AmericaB1
CN1778036AChinaA
CN1778037AChinaA
US7061312B2United States of AmericaB2
US7078963B1United States of AmericaB1
JP2006521067AJapanA
JP2006523414AJapanA
JP2006528475AJapanA
CN1894855AChinaA
US7167112B2United States of AmericaB2
EP1623501B1European Patent Office (EPO)B1
AT356467TAustriaT
HK1094626A1Hong Kong, ChinaA1
DE602004005178D1GermanyD1
JP2007521716AJapanA
CN101027837AChinaA
DE602004005178T2GermanyT2
EP1609241B1European Patent Office (EPO)B1
AT381145TAustriaT
DE602004010632D1GermanyD1
EP1606875B1European Patent Office (EPO)B1
AT396536TThis recordAustriaT
DE602004013940D1GermanyD1
US7436918B2United States of AmericaB2
DE602004010632T2GermanyT2
US7474722B1United States of AmericaB1
CN100483932CChinaC
US2009143884A1United States of AmericaA1
JP4276258B2JapanB2
CN100505527CChinaC
CN100511980CChinaC
US7584009B2United States of AmericaB2
US7590251B2United States of AmericaB2
JP4358860B2JapanB2
CN101577535AChinaA
US7706545B2United States of AmericaB2
US7729790B1United States of AmericaB1
US7738613B1United States of AmericaB1
JP4617298B2JapanB2
JP4620043B2JapanB2
US7908306B1United States of AmericaB1
CN101577535BChinaB
CN1894855BChinaB
US7970088B2United States of AmericaB2
USRE43489EUnited States of AmericaE