4. Cryptography
  5. Communication system using cryptography
  6. Frequency shift or inversion

Robert N. Weisshappel

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Portable electronic device and method for coupling power thereto

Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Patent

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Portable electronic device and method of coupling power thereto

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

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Radio frequency signal power amplifier combining network

Telecommunications – Transmitter and receiver at same station – With a common signal processing stage
Patent

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Wireless telephone with frequency inversion scrambling

Cryptography – Communication system using cryptography – Frequency shift or inversion
Patent

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Profile ID: LFUS-PAI-P-737433

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