Wireless response system and method
US7277671B2 · kind B2 · utility
20Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Jun 1, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless response system includes a base unit and a plurality of handheld response units communicating with the base unit over a wireless communication link. The base unit sends polling commands to the response units over the wireless communication. The response units send the response data to the base unit over the wireless communication link in response to the polling signals. The response data is entered in the respective response units by a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.