Collective housing intercom apparatus
US6879670B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2002 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/025
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention makes it possible to call a resident of collective housing even when the apartment number of the resident is unknown. A collective housing entrance substation is connected to residential master stations through a controller, and a name retrieval module is connected to the controller. The name retrieval module has a memory in which a name and/or apartment number of a resident is registered in advance, a button operable to display the name and/or apartment number of the resident registered in advance, a name indicator for display of the name and/or apartment number of the resident registered in advance, and a call button that is operated with display of the proper name and/or apartment number to call the residential master station of the resident.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.