4. Pulse or digital communications
  5. Repeaters
  6. Testing

James S. Butcher

Inventor

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Audio distributing system

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Patent

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Automatic bias circuit

Pulse or digital communications – Repeaters – Testing
Patent

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Automatic clock recovery circuit

Pulse or digital communications – Spread spectrum – Direct sequence
Patent

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Bi-lateral four quadrant power converter

Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent

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Center frequency high resolution digital phase-lock loop circuit

Pulse or digital communications – Spread spectrum – Direct sequence
Patent

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Profile ID: LFUS-PAI-P-670525

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