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Low cost broad range loudspeaker and system

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Low cost hearing protection device

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate

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Low cost speech recognition system and method

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent

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Low data rate speech encoding employing syllable duration patter

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent

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Low data rate speech encoding employing syllable pitch patterns

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent

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Low distortion amplifier

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Patent

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Low distortion audio muting circuit

Electrical audio signal processing systems and devices – Noise or distortion suppression – Soft switching – muting – or noise gating
Patent

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Low distortion dynamic loudspeaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having protective or sheilding feature
Patent

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Low distortion filters for separating frequency or phase modulat

Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent

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Low frequency active noise control

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within cabin or compartment of vehicle
Reexamination Certificate

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Low frequency audio conversion circuit

Electrical audio signal processing systems and devices – Including frequency control
Patent

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Low frequency audio conversion circuit

Electrical audio signal processing systems and devices – Including frequency control
Patent

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Low frequency compensating circuit for audio signals

Electrical audio signal processing systems and devices – Including frequency control
Patent

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Low frequency feedback controlled audio system

Electrical audio signal processing systems and devices – Loudspeaker feedback
Reexamination Certificate

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Low frequency generator

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Low frequency loud speaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer
Patent

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Low frequency loudspeaker driver having a polygonal...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Low frequency sound generation system for use in vehicular passe

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer
Patent

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Low frequency surface array

Electrical audio signal processing systems and devices – Having non-electrical feature – And loudspeaker
Reexamination Certificate

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Low frequency transducer enclosure

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
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