Resources Contact Us Home
Process of analysis of the convergence of a cathode-ray tube with three ganged guns and a device forming a pick-up allowing implementation of this process

Image Number 2 for United States Patent #4364079.

A process of analysis of convergence along two orthogonal components of the three guns in a color television tube with ganged guns involves, for example, placing an analysis slit 20 in front of the screen of the cathode-ray tube in order to observe at least three luminophore columns 15 of different colors in full width, of causing a luminous line of a single color to pass by, turning on only the corresponding gun in front of said slit, and of measuring the current in the deviator of the cathode-ray tube for which the maximum light intensity is observed through the slit, and of beginning these operations again for each of the three colors, the measured values making it possible to deduce the convergence gaps of the beams at the placement of the slit. The invention allows automatic convergence correction of the cathode-ray tube.

  Recently Added Patents
Potentiometric-sensor chip, potentiometric assay, and assay kit
Controller for soldering iron
Workflow-enabled client
Method and device for managing a turning setpoint applied to at least one turning actuator for the rear wheels of an automobile
Oxidative coupling of hydrocarbons as heat source
Memory interface circuit, memory interface method, and electronic device
Fishing apparatus
  Randomly Featured Patents
Target trajectory generator for predictive control of nonlinear systems using extended Kalman filter
Compound modulation transfer function for laser surgery and other optical applications
Offshore floating platform with motion damper columns
System and method of processing a digital image for user assessment of an output image product
Cannula for receiving surgical instruments
Analog phase-locked loop including voltage regulator
Functional combined equipment for a motor vehicle
Electronic RZ/CSRZ signal generation for optical communication systems
Pot lid holder
Precast wall with thermic regulation elements