Alignment of cathode ray tube video displays using a host computer processor
CA 2277844 A1 · Owner: Webb, James R. · Inventors: Simpson, Ron C.; Webb, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for automatically aligning video images on a display device such as a cathode ray tube (CRT) (14). The system uses previously generated correction factor data retrieved from a characterization module (34) within the display device or from a convenient storage location. The retrieved correction factor data is processed by a host computer (10) processor (22) and memory (24) to , produce correction control data which is transmitted over a serial connector , (18), or a video connector (16) to the display device where the data is read by correction and driver circuitry (28).
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
- Filed January 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2020.
- 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.