Passive Sound Pressure Level Limiter with Balancing Circuit

A passive sound pressure level (SPL) limiter is provided that can be used with audio sources of varying drive levels and headphones or earphones of varying sensitivity. The SPL limiter includes a control circuit and left and right channel limiting circuits, each of which includes a pair of FETS. The...

Full description

Saved in:
Bibliographic Details
Main Authors WELSH CHRISTOPHER TODD, BARR JOSHUA JAMES, MICHEL ALAN DEAN, DYER MEDFORD ALAN
Format Patent
LanguageChinese
English
Published 19.09.2012
Subjects
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
Online AccessGet full text

Cover

More Information
Summary:A passive sound pressure level (SPL) limiter is provided that can be used with audio sources of varying drive levels and headphones or earphones of varying sensitivity. The SPL limiter includes a control circuit and left and right channel limiting circuits, each of which includes a pair of FETS. The SPL limiter may include a balancing circuit that separates the control signal output by the control circuit into left and right channel control signals. The SPL limiter may also include a microphone, for example integrated into an earpiece cable.
Bibliography:Application Number: CN2012159237