Drum scanner focusing system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 25, 1995
Grant Date -
N/A
app pub date -
Apr 14, 1993
filing date -
Apr 14, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
A focusing system for the optical head of a rotary drum scanner establishes focus quickly and automatically by iteratively scanning a line of a document on the drum and repeatedly adjusting the focus of the head in accordance with a focus optimizing function until the region of optimal focus is found.
Loading the Abstract Image...
OK
First Claim
Family
Loading Family data...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully