Selective pattern scanner
US5818025A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1997 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Aug 13, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10693
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A barcode scanner includes a spinner disposed in optical alignment with a light emitter for reflecting a light beam from a plurality of mirror facets. A motor is joined to the spinner for rotating the spinner to align in turn the spinner facets with the light emitter. A plurality of pattern mirrors are optically aligned with the spinner for reflecting the light beam from the spinner facets as a plurality of scan lines. A controller is operatively joined to the light emitter for turning the light emitter on during a first mode of operation for effecting all of the plurality of scan lines in sequence. A control tab is joined to the spinner for rotation therewith. A sensor is spaced adjacent to the spinner for detecting proximity of the control tab, and is operatively joined to the light emitter for periodically turning on the light emitter during a second mode of operation for effecting less than all the scan lines corresponding with detection of the control tab adjacent to the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.