P� 23. okt. 2004 kl. 00.07 skrev P�l Jensen:
Dag wrote:
From what I see from a quick look at the claims neither of these are general enough to give an absolute control over anti vibration, so you can�t conclude that Nikon or Canon uses them.
REPLY:
I have never claimed that Pentax control absolutely some aspect of IS. In fact from reading the patents nobody seem to!
Who is using it (Nikon and Canon) can be read from Nikon and Canons patents on IS lenses that all refer to the Pentax patent.
Referring to does not mean infringing, references made by the patent offices are categorized as very relevant, relevant in combination with some other publication, or relevant as background information, and in the US they also list all the publications referred to by the applicant. So both Canon and Nikon could have found a way to make it work that Pentax didn�t, which isn�t covered by the Pentax patents.
DagT
