4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Telephone equipment

David A. Lundgren

Inventor

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Computer visual display monitor with integral stereo speaker and

Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement
Patent

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Directional microphone for computer visual display monitor and m

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

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Directional microphone for computer visual display monitor and m

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

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Enclosure for interactive display

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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High performance stereo sound enclosure for computer visual disp

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

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Profile ID: LFUS-PAI-P-924314

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