4. Pulse or digital communications
  5. Receivers

David G. Matthews

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Antenna coupler for a portable radio

Communications: radio wave antennas – Antennas – Measuring signal energy
Patent

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Apparatus amd method for increasing the intelligibility of a lou

Telephonic communications – Echo cancellation or suppression
Patent

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Communications system and method using vehicle identifications

Cryptography – Cryptanalysis
Patent

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Dual-mode radio receiver for receiving narrowband and wideband s

Pulse or digital communications – Receivers
Patent

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Method and apparatus for indicating an operable or non-operable

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent

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Profile ID: LFUS-PAI-P-403063

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