Process for acknowledging calls in a system for wireless staff locators
US3973200A · kind A · utility
150Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1975 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Jan 23, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B3/1083
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a system for wireless staff location where non-coded acknowledgement signals are transmitted from a called staff locator to identify the staff locator from which the acknowledgement signal is sent which is characterized by the fact that the acknowledgement signal is allotted to the staff locator whose coded call signal was last transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.