Hand-held optical scanner
OwnerHoward H. Bobryinventor
Life of this patent
Estimating the term…
Abstract
A hand-held and self contained electronic scanning apparatus for scanning information on a document disposed outside the apparatus includes a housing that can be manually positioned adjacent a surface of a document and manually swept across a scanning area on the medium during a scanning sequence; a scanner disposed in the housing and having a scan head with a plurality of scan elements such as light sensitive elements for scanning information as an image of the document within the scanning area; and an electronic control circuit disposed in the housing for controlling the scanner to scan information on the document during a scanning sequence, the control circuit comprising compensation for reducing image distortion based on detecting position of the light sensitive elements during a scanning sequence.
Claims42
A hand-held and self contained electronic scanning apparatus for scanning information on a document disposed outside the apparatus, comprising:
- a housing that can be manually positioned adjacent a surface of the document and manually swept across a selected scanning area of the document during a scanning sequence;
- a scanner disposed in the housing and having a scan head with a plurality of scan elements for scanning information within the scanning area;
- and electronic control means disposed in the housing for controlling the scanner to scan information on the document during a scanning sequence, said control means comprising compensation means for reducing scanned image distortion caused by movement of said scan head along a non-linear path during a scanning sequence.
A method for scanning information on a document disposed outside the apparatus using a hand-held self-contained scanning apparatus, comprising the steps of:
- (a) manually positioning a housing adjacent a surface of the document and manually sweeping the housing across a selected scanning area of the document during a scanning sequence;
- (b) scanning information within the scanning area using an optical scanner in the housing having a plurality of scan elements that convert scanned information into an electronic image;
- and
- (c) compensating the electronic image to reduce scanned image distortion caused by non-linear movement of the housing during the scanning sequence by detecting positions of said scan elements during a scanning sequence and storing the electronic image based on said detected scan element positions.
A hand-held and self contained electronic scanning apparatus for scanning indicia on a medium disposed outside the apparatus, comprising:
- a housing that can be manually positioned adjacent a surface of the medium and manually swept across a selected scanning area on the medium during a scanning sequence;
- a scanner disposed in the housing and having a scan head with a plurality of scan elements for scanning indicia on the medium within the scanning area;
- and electronic control means disposed in the housing for controlling the scanner to scan indicia on the medium during a scanning sequence, said control means comprising compensation means for reducing scanned indicia distortion caused by a pivoting rotational movement of the scan head about an axis during a scanning sequence.
Method for scanning indicia on a medium disposed outside the scanning apparatus, using a hand-held electronic scanning apparatus self-contained within a housing, comprising the steps of:
- positioning the housing adjacent a surface of the medium and manually sweeping the apparatus across a scanning area on the medium during a scanning sequence;
- scanning indicia on the medium within the scanning area, using a scan head having a plurality of scanning elements, as the apparatus is swept across the scanning area;
- and
- compensating for scanned indicia distortion caused by a pivoting rotational movement of the scan head about an axis during a scanning sequence.
Dependencies are inferred from the claim text.