4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Telephone equipment

VTech Communications Ltd.

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Adaptive frequency hopping strategy

Multiplex communications – Communication over free space – Combining or distributing information via frequency channels
Reexamination Certificate

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Auxiliary telephone base

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Design Patent

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Binary waveform shaping apparatus

Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate

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Broadcast in a wireless communications system

Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer data transfer regulating
Reexamination Certificate

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Cascode VCO frequency modulator

Modulators – Frequency modulator – Including discrete semiconductor device
Patent

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Profile ID: LFUS-PAI-P-2454173

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