Wireless synchronous time system
US6873573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2001 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Jun 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04R20/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wireless synchronous time system comprising a primary master event device and secondary slave devices. The primary event device receives a global positioning systems “GPS” time signal, processes the GPS time signal, receives a programmed instruction, and broadcasts or transmits the processed time signal and the programmed instruction to the secondary slave devices. The secondary slave devices receive the processed time signal and the programmed instruction, select an identified programmed instruction, display the time, and execute an event associated with the programmed instruction. The primary event device and the secondary devices further include a power interrupt module for retaining the time and the programmed instruction in case of a power loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.