System for stabilizing cathode ray tube operation
CA 1085042 A · Owner: Thomson-Csf · Inventors: Smith, Clyde
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a television display video apparatus test signals, respectively corresponding to the "black" and "white" value of the input signal to be translated by means of a gun are periodically applied to the apparatus during blanking intervals and voltages representatives of the corresponding cathode current of the gun are respectively used for correcting the d-c component of the input signal and for an additional correction bearing either on the gain of the input signal or on the bias voltage of the accelerating grid of the gun.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.