Video tripwire
CA 2460426 A1 · Owner: Objectvideo, Inc. · Inventors: Zhang, Zhong; Clark, John I. W.; Allmen, Mark C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A video tripwire system and method for implementing same comprises a sensing device (1) for producing video output, a communication medium (2) over which the video output is transmitted, an analysis system (5) for receiving the video output from the communications medium and a user interface (6) for , sending inputs to and receiving outputs from the analysis system thereby , enabling a user to create a virtual tripwire and to provide commands to the analysis system. The sensing device may be calibrated manually and/or automatically, to determine sensing device parameters for use by the system. The analysis system determines if the virtual tripwire has been crossed by , analyzing data …
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 October 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2024.
- 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.