Automatically-activated wireless hand-supportable laser scanning bar code symbol reading system with automatic communication range dependent control
US7464878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2006 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Sep 13, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A wireless automatically-activated bar code symbol reading system for use in a work environment, the system including a device controller programmed to automatically detect when a wireless hand-supportable bar code symbol reader is located inside of a predetermined RF communication range based on measuring the strength of a detected reference signal, and thereupon to automatically transmit to a first RF-based transceiver, the symbol character data string produced while the wireless hand-supportable bar code symbol reader is located inside of the predetermined RF communication range. Also, the device controller is programmed to automatically detect when the wireless hand-supportable bar code symbol reader is located outside of the predetermined RF communication range based on measuring the strength of the detected reference signal, and thereupon to automatically collect and store in the data packet group buffer, the symbol character data string produced while the wireless hand-supportable bar code symbol reader is located outside of the predetermined RF communication range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.