LandOfFree - US Patents

Pulse or digital communications – Transmitters

Quadrature modulation circuit for use in a radio transmitter

Pulse or digital communications – Transmitters – Amplitude modulation

Quadrature modulation circuits and systems supporting...

Pulse or digital communications – Transmitters – Quadrature amplitude modulation

Quadrature modulation transmitter

Pulse or digital communications – Transmitters – Angle modulation

Quadrature modulation with reduced phase-error distortion

Pulse or digital communications – Transmitters – Quadrature amplitude modulation

Quadrature modulator

Pulse or digital communications – Transmitters – Quadrature amplitude modulation

Quadrature modulator

Pulse or digital communications – Transmitters – Quadrature amplitude modulation

Quadrature modulator and calibration method

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

Quadrature modulator and demodulator

Modulators – Phase shift keying modulator or quadrature amplitude modulator

Quadrature modulator and demodulator

Pulse or digital communications – Transmitters – Antinoise or distortion

Quadrature modulator carrier quadrature error detection...

Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention

Quadrature modulator for TDMA/TDD radio communication apparatus

Modulators – Phase shift keying modulator or quadrature amplitude modulator

Quadrature modulator having circuit for correcting phase error

Modulators – Phase shift keying modulator or quadrature amplitude modulator

Quadrature modulator having compensation for local oscillator le

Modulators – Phase shift keying modulator or quadrature amplitude modulator

Quadrature modulator having controlled phase shifter

Modulators – Phase shift keying modulator or quadrature amplitude modulator – Including discrete semiconductor device

Quadrature modulator having phase shift and amplitude compensati

Pulse or digital communications – Transmitters – Quadrature amplitude modulation

Quadrature modulator imbalance estimator and modulator stage...

Modulators – Phase shift keying modulator or quadrature amplitude modulator

Quadrature modulator malfunction estimator and modulator stage u

Modulators – Phase shift keying modulator or quadrature amplitude modulator

Quadrature modulator operable in quasi-microwave band of digital

Modulators – Phase shift keying modulator or quadrature amplitude modulator

Quadrature modulator with distortion compensation