LandOfFree - US Patents

Demodulators – Amplitude modulation demodulator – Having specific distortion – noise or other interference...

QAM demodulator with rapid resynchronization function

Pulse or digital communications – Transceivers – Modems

QAM detector which compensates for received symbol distortion in

Pulse or digital communications – Repeaters – Testing

QAM encoder

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

QAM encoding

Pulse or digital communications – Repeaters – Testing

QAM encoding for high-definition television system

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

QAM modulator

Pulse or digital communications – Repeaters – Testing

QAM modulator circuit

Modulators – Phase shift keying modulator or quadrature amplitude modulator

QAM modulator/demodulator

Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic

QAM optical modulators

Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic

QAM optical modulators

QAM phase jitter and frequency offset correction system

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

QAM receiver

Wave transmission lines and networks – Automatically controlled systems – With control of equalizer and/or delay network

QAM receiver having automatic adaptive equalizer

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

QAM receiver having joint gain, carrier recovery and...

Pulse or digital communications – Receivers – Interference or noise reduction

QAM receiver with improved immunity to crosstalk noise

Pulse or digital communications – Receivers – Angle modulation

QAM signal receiver

Pulse or digital communications – Receivers – Angle modulation

QAM spread spectrum demodulation system

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

QAM symbol mapping method and apparatus for downstream...

Pulse or digital communications – Receivers – Particular pulse demodulator or detector

QAM symbol slicing method and apparatus