Scan engine with configurable communication interface
US9286499B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/1413
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system, apparatus, and methods for interfacing a scan engine for scanning optical code symbols and a decoder. The system employs a configurable communication interface configured to generate a relaxed DBP signal that is independent of the scanning distance or the scan rate used in a scanning operation using a DBP signal from the scan engine. A relaxed DBP signal may be generated by scaling a narrowest pulse in a pulse sequence to a fixed minimum pulse width. A relaxed DBP signal having transmission slots of a fixed duration may be generated by calculating a minimum pulse duration that enables transmission of a pulse sequence within the fixed duration. Upon scaling the narrowest pulse in a pulse sequence to the minimum pulse width, either fixed or calculated, the remaining pulses are scaled so as to maintain a relative proportionality of each pulse width in the pulse sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.