Inventor

DINGWALL ANDREW GORDON FRANCIS

23 patents

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

DINGWALL ANDREW GORDON FRANCIS

RCA CORP

Voltage controlled oscillator (VCO) employing nested oscillating loops

Semiconductor integrated circuit device including an array of insulated gate field effect transistors

Level shift circuit

Voltage controlled oscillator having equally controlled current source and current sink

Integrated circuit device including both N-channel and P-channel insulated gate field effect transistors

Method of making a semiconductor device

Voltage amplitude multiplying circuits

Low power counting circuits

Circuit for starting current flow in current amplifier circuits

Constant current supply

Method of making a substrate contact for an integrated circuit

Memory cell with decoupled supply voltage while writing

Semiconductor device including a conductor surrounded by an insulator

Direct-coupled cascade amplifier with automatically adjusted quiescent output signal level

Current mirror amplifier

Method of making a semiconductor device

Quasi-static inverter circuit

SARNOFF CORP

Circuit and method for driving an organic light emitting diode (O-LED) display

Column driver with switched-capacitor D/A converter

THOMSON CONSUMER ELECTRONICS

Liquid crystal display driver with threshold voltage drift compensation

Signal disturbance reduction arrangement for a liquid crystal display

SARNOFF DAVID RES CENTER

Matrix addressed LCD display having LCD age indication, and autocalibrated amplification driver, and a cascaded column driver with capacitor-DAC operating on split groups of data bits

DINGWALL ANDREW GORDON FRANCIS

Electrical circuit