4. Telephonic communications
  5. Substation or terminal circuitry
  6. Conversion of signal form

David L. Dilley

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Apparatus and method for determining the presence and polarity o

Telephonic communications – Substation or terminal circuitry – Conversion of signal form
Patent

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Apparatus and method for providing proper microphone DC bias cur

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker
Patent

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High speed programmable frequency divider and PLL

Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Pulse multiplication or division
Patent

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Reduced size phase-to-amplitude converter in a numerically contr

Boots – shoes – and leggings
Patent

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