Video processing circuit
CA 1096485 A · Owner: North American Philips Corporation · Inventors: Van Roessel, Frederik J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHA 20,726, ABSTRACT:, A video processing circuit features a chain of direct current coupled circuits comprising a cable compensating circuit, a straylight compensation and clamping circuit, a blanking amplifier a matrix cir-, cuit and a gamma correction and clamping circuit. This reduces streaking errors and lowers the power dissipation required.
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 February 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 24, 1998.
- 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.