Handheld document scanner
First Claim
1. A manually operable document scanner comprising:
- a guide along which a document moves in traversing a path through the scanner; and
a first speed-sensing detector and a second speed-sensing detector disposed along the path traversed by a document in passing through the scanner for determining a speed at which the document traverses the path, said first and second speed-sensing detectors being disposed along the path so a leading edge of a document in traversing the path activates the first speed-sensing detector and then activates the second speed-sensing detector.
1 Assignment
0 Petitions
Accused Products
Abstract
A document transport for a scanner (100) has a flexible, elongated finger (226) disposed adjacent to a document (134), and a force applied to the finger (226) urges teeth (233) on the finger (226) into contact with the document (134) which urges the document (134) along a path through the scanner (100). A piezoelectric plate (222), which applies the force to the finger (226), requires only a small amount of electrical power. To traverse the scanner (100), a document (134) may also be manually fed along a guide (272). First and second speed-sensing detectors (276a and 276b), disposed along the path traversed by the document (134), permit the scanner (100) to determine a speed at which the manually fed document (134) traverses the scanner (100). To conserve electrical energy, the scanner (100) also includes a document-presence detector (274) for activating the scanner (100) when a document (134) to be scanned is present.
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Citations
6 Claims
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1. A manually operable document scanner comprising:
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a guide along which a document moves in traversing a path through the scanner; and a first speed-sensing detector and a second speed-sensing detector disposed along the path traversed by a document in passing through the scanner for determining a speed at which the document traverses the path, said first and second speed-sensing detectors being disposed along the path so a leading edge of a document in traversing the path activates the first speed-sensing detector and then activates the second speed-sensing detector. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification