Bar code scanner with multi-channel light collection
US5635700A · kind A · utility
51Cited by
11References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2007/10524
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Bar code reading in which light reflected from a scanned symbol is optically collected by a multi-channel light detector comprising an array of more than one individual light detection elements (e.g., photodetectors) each having an output capable of providing an output signal representative of light impinging thereon, amplifiers respectively coupled to each of the light detection elements, and a summing unit coupled to the outputs of each of the amplifiers for providing a signal representative of the sum of the amplified output signals of all of the light detection elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.