Nurse call system, interface unit, and nurse call connection method
US10092472B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 22, 2015 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Oct 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/62
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In nurse call systems where communication between a plurality of slave units and a plurality of extension terminals is possible, a nurse call controller serving the slave units and a private branch exchange serving the mobile terminals have been connected to each other through a nurse call adaptor; thus, there is a need for one such nurse call system that does not require a nurse call adaptor. Provided is an interface unit which is connected to a nurse call controller through a plurality of ISND basic interfaces, connected to a private branch exchange through an ISDN primary rate interface, and performs interface conversion therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.