Object collision point detecting apparatus
CA 2119989 A1 · Owner: Miyahara, Takakazu · Inventors: Miyahara, Takakazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for use in training or playing in various shooting games, such as for golf approach shot baseball batting, or sportive gun shooting. A target screen 12 is provided opposite to a shooting point 16 from which a ball 17 or the like is shot out. Four microphones 101-104 are provided at the circumference of the target screen 12 to detect the collision sound, and another microphone 105 is set at the shooting point to detect the shooting sound of the ball 17. The duration of flight of the ball 17, and the collision point on the screen and, the orbit of the flying ball 17, are calculated by analyzing the detection time points of each microphone in a control part 14. The results i.e. …
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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 March 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2016.
- 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.