Target finder in electro-optical scanners
US5668364A · kind A · utility
9Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1995 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | May 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1011
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A target bearing a coded indicium is found by a system for electro-optically reading indicia. Upon the determination that the indicium is located within a range of working distances relative to a hand-held housing, a user is prompted that the indicium is ready to be read. A sonic signal is transmitted by a ranger, and a return echo from the indicium is received. An auditory prompt, such as a single tone or a series of tones, advises the user that the indicium is within range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.