Method and apparatus for efficient high-resolution visual field mapping
CA 2425177 A1 · Owner: Ullman, Shimon · Inventors: Zur, Dror; Ullman, Shimon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A micro-perimeter technique using a portable computer (10) and a projector (12), and using two screening (14) methods multi-resolution static and bi-, directional kinetic. The static method as applied to a static test, starts , with relatively low-resolutions and only the unseen zones are selectively remapped under higher resolutions during successive iterations. The bidirectional kinetic method, as applied to a kinetic test uses a response to a , continuously moving target and the unknown response delay is compensated for by an algorithm that merges the patient's response to measurement at the same visual location, but with opposite scanning directions. Offline visualization of the …
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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 October 9, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2023.
- 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
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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.