Hand-held scanner with rotary position detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 15, 2000
Grant Date -
N/A
app pub date -
May 28, 1999
filing date -
Jun 27, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical scanner including a hand-holdable housing including a scanner head for scanning a record medium, a roller engageable with and rotatable by the record medium when scanned by the scanner head, the roller including an optically-sensible marking for use in measuring rotary movements of the roller, a light source illuminating the roller and the marking thereof, an optical sensor for sensing information on the record medium and the marking of the roller, and a control system for periodically energizing the light source during predetermined time periods enabling the optical sensor to sense the marking of the roller during the predetermined time periods, and the information on the record medium during other time periods.
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