LandOfFree - US Patents

Coded data generation or conversion – Digital pattern reading type converter – Real and complementary patterns

Quadrature encoding device with slope-triggered digitizing circu

Amplifiers – Modulator-demodulator-type amplifier

Quadrature envelope elimination and restoration (EER) amplifier

Coded data generation or conversion – Phase or time of phase change – Synchro or resolver signal

Quadrature error correction

Pulse or digital communications – Receivers – Angle modulation

Quadrature error reduction for QAM modulated up or down...

Optics: measuring and testing – Range or remote distance finding – With photodetection

Quadrature fiber-optic interferometer matrix

Optics: measuring and testing – Range or remote distance finding – With photodetection

Quadrature fiber-optic interferometer matrix

Telephonic communications – Echo cancellation or suppression – Using digital signal processing

Quadrature filter augmentation of echo canceler basis functions

Pulse or digital communications – Receivers – Interference or noise reduction

Quadrature filter with real conversion

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

Quadrature FM detector including low reactance phase shifter

Electricity: measuring and testing – Particle precession resonance – Spectrometer components

Quadrature foot coil antenna for magnetic resonance imaging

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

Quadrature frequency changer, tuner and modulator

Pulse or digital communications – Transmitters – Angle modulation

Quadrature frequency doubler with adjustable phase offset

Pulse or digital communications – Transmitters – Angle modulation

Quadrature frequency doubling system

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

Quadrature gain and phase imbalance correction in a receiver

Telecommunications – Receiver or analog modulated signal frequency converter – Panoramic display

Quadrature generator with image reject mixer

Dynamic magnetic information storage or retrieval – Manual input recording

Quadrature head dual channel VCR

Wave transmission lines and networks – Plural channel systems – Having branched circuits

Quadrature hybrid and improved vector modulator in a chip...

Wave transmission lines and networks – Plural channel systems – Having branched circuits

Quadrature hybrid circuit

Wave transmission lines and networks – Plural channel systems – Having branched circuits

Quadrature hybrid low loss directional coupler