4. Telecommunications
  5. Receiver or analog modulated signal frequency converter
  6. Signal selection based on frequency

Robert L. Griffin

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(DS) transmitter

Pulse or digital communications – Repeaters – Testing
Patent

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8-Phase PSK modulator

Telegraphy – Systems – Alternating or pulsating current
Patent

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A-D encoder and D-A decoder system

Pulse or digital communications – Repeaters – Testing
Patent

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A.F.C. system for broad-band FM receiver

Telecommunications – Receiver or analog modulated signal frequency converter – Frequency or phase modulation
Patent

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A/D converters

Pulse or digital communications – Spread spectrum – Direct sequence
Patent

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Profile ID: LFUS-PAI-P-25136

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