Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6199044 | Universal data input and processing device, such as universal point-of-sale device for inputting and processing bar code symbols, document images, and other data | H. Sprague Ackley, Michael P. Ohanian | 2001-03-06 |
| 6173893 | Fast finding algorithm for two-dimensional symbologies | Richard S. Penn | 2001-01-16 |
| 6064763 | Time-efficient method of analyzing imaged input data to locate two-dimensional machine-readable symbols or other linear images therein | — | 2000-05-16 |
| 6039252 | Bar code reading system for reconstructing irregularly damaged bar codes | — | 2000-03-21 |
| 6018597 | Method and apparatus for changing or mapping video or digital images from one image density to another | Ken Coffman | 2000-01-25 |
| 5987192 | Method and apparatus for processing or resizing digital images, such as images of bar code symbols | Ken Coffman | 1999-11-16 |
| 5923022 | Method and apparatus for identifying bar code symbols using reading gates | Richard S. Penn | 1999-07-13 |
| 5902987 | Apparatus and method of rapidly locating edges of machine-readable symbols or other linear images | Ken Coffman | 1999-05-11 |
| 5877486 | Method and apparatus for enhancing resolution of reflectance signals produced from machine-readable symbols | H. Sprague Ackley | 1999-03-02 |
| 5786583 | Method and apparatus for locating and decoding machine-readable symbols | — | 1998-07-28 |
| 5777309 | Method and apparatus for locating and decoding machine-readable symbols | H. Sprague Ackley | 1998-07-07 |
| 5761219 | Error correction for PDF417 and other machine-readable symbologies | — | 1998-06-02 |