Video image recording methods and devices
CA 1208766 A · Owner: Loge/Dunn Instruments, Inc. · Inventors: Menzimer, David A.; Haddick, David H.; Lyon, George E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Video image recording device for photographically recording video images selected from video input signals on sheets of film, provided with means for reducing or completely eliminating recorded image drift. Recorded image parameter controls are provided which are calibrated in terms of Dunn Density Index numbers, which are related to the densities of the recorded video images. Image polarity inversion control means are provided for the recorded image and for each individual video input signal channel.
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 July 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 2003.
- 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.