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

David S. Robins

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Apparatus and method for attenuating interfering signals

Pulse or digital communications – Repeaters – Testing
Patent

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Apparatus and method for detecting the presence of a pulsed radi

Pulse or digital communications – Repeaters – Testing
Patent

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Apparatus and method for determining the presence and frequency

Pulse or digital communications – Repeaters – Testing
Patent

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Method for supporting voice communications between communication

Telecommunications – Carrier wave repeater or relay system – With transmission line
Patent

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Programmable digital tone detector

Communications: electrical – Digital comparator systems
Patent

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Profile ID: LFUS-PAI-P-245321

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