System, method, and apparatus for communicating information encoded in a light-based signal using a fob device
US6877665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2002 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Dec 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/27
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A system, method, and apparatus for communicating information in a light-based signal utilizing a fob device is disclosed. One method disclosed includes encoding transmission information data into a bar code format; generating a signal from the bar code format to simulate a reflection of a scanning beam being moved across a static visual image of the bar code format; and actively transmitting the signal as light pulses from the fob device. Alternatively, commercial information data may be transmitted to a light-based data receiving device by generating a signal from commercial information data and actively transmitting the signal as light pulses from a fob device. Transmission information data may also be transmitted from a fob device by generating a first signal from a first encoded format; generating a second signal from a second encoded format; transmitting the first signal as light pulses from a fob device; and transmitting the second signal from the fob device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.