Video camera, video camera device and adopter used therewith
CA 2070745 A1 · Owner: Hashimoto, Hiroyuki · Inventors: Ishii, Satoshi; Saito, Haruo; Hashimoto, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Techniques of video cameras or the like which may be effectively used with photo-camera, for instance are, disclosed. In response to the detection of a greater image pick-up signal level change than a predetermined extent a, shutter pulse is generated. In addition in response to, the shutter button operation the blanking area of image is, increased or reduced to provide a special effect of indicating the shutter operation. The output signal of an optical sensor having the same characteristic as the image pick-up device is integrated, and when the integral signal exceeds a predetermined value, the AGC circuit gain is reduced to a predetermined extent to prevent the image pick-up signal level …
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 June 9, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2014.
- 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.