Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate
2005-01-25
2005-01-25
Kuntz, Curtis (Department: 2643)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
C381S385000, C381S375000
Reexamination Certificate
active
06847725
ABSTRACT:
An assistive listening device has a housing enclosing at least one of a radio receiver and an infrared radiation receiver for receiving radiation carrying audio information transmitted to hearing impaired members of an audience. The infrared radiation receiver includes three infrared detectors for receiving radiation from at least three different directions. The received radiation is converted to an amplified audio signal that is converted to sound emitted at a pair of earphones that are attached to the distal ends of two arms that are attached at their proximal ends to the housing. The earphones are rotatable on their arms for enhanced comfort. A microphone is attached to the housing. It receives sound and amplifies it to enable the wearer to hear a conversation while wearing the device. It may be rotatable to enhance reception. It may be disconnected to eliminate unwanted noise.
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Neuman Bernard
Neuman Sandra J.
Blum Alvin S.
Dabney P.
Kuntz Curtis
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