Inventor

GILBERT BARRIE

US98 patents

⚠️ This page may combine multiple inventors who share the name “GILBERT BARRIE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GILBERT BARRIE

ANALOG DEVICES INC

Variable-gain amplifier controlled by an analog signal and having a large dynamic range

Automatic biasing scheme for reducing oscillator phase noise

Differential-input single-supply variable gain amplifier having linear-in-dB gain control

Multiple sequential excitation temperature sensing method and apparatus

Variable-gain amplifier having error amplifier with constant loop gain

RMS-to-DC converter with balanced multi-tanh triplet squaring cells

Input system for variable gain amplifier having transconductance stages with feedforward paths diverted to AC ground

Low noise amplifier having sequentially interpolated gain stages

RMS-DC converter having gain stages with variable weighting coefficients

RMS-DC converter using a variable gain amplifier to drive a squaring cell

RMS-to-DC converter with balanced multi-tanh triplet squaring cells

Low supply current RMS-to-DC converter

RF mixer with inductive degeneration

Double balanced RF mixer with predetermined input impedance

Variable gain mixer having improved linearity and lower switching noise

Linear-in-decibel variable gain amplifier

Current-controlled quadrature oscillator based on differential gm /C cells

Linear interpolation circuit

Synchronous logarithmic amplifier

Logarithmic amplifier

Temperature compensated logarithmic circuit

Integrated-circuit thermocouple signal conditioner

Single-ended input, differential output low noise amplifier

Switching bandgap voltage reference

Logarithmic amplifier with RMS post-processing

Variable attenuation system having continuous input steering

Vector modulator having attenuators with continuous input steering

Variable-gain amplifier having error amplifier with constant loop gain

Low supply current RMS-to-DC converter

Squaring cells and multipliers using summed exponentials

Gain and phase detector having dual logarithmic amplifiers

Amplifier with feedback compensation

Interpolator having dual transistor ranks and ratiometric control

Circuit having dual feedback multipliers

RMS-DC converter having detector cell with dynamically adjustable scaling factor

Logarithmic amplifier with self-compensating gain for frequency range extension

Amplifier having a rail-to-rail output stage

Multi-tanh triplet with optimal biasing

Automatically tracking multiple-pole active filter

Quadrature oscillator using inherent nonlinearities of impedance cells to limit amplitude

Crystal oscillator driver with amplitude control

Quadrature oscillator having amplitude control means based on a trigonometric identity

Sub-rail voltage regulator with low stand-by current and high load current

Demodulating logarithmic amplifier

Zero-curvature band gap reference cell

Detector cell for logarithmic amplifiers

Logarithmic amplifier gain stage

High-accuracy four-quadrant multiplier which also is capable of four-quadrant division

Temperature compensated IC voltage reference

TEKTRONIX INC

Multiplier circuit