Remote answering of doorbell
US5966432A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Apr 14, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/60
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for remotely answering a door. The apparatus includes a switch, a telephone transmitter and an a telephone receiver positioned near the door. At least one telephone station is operable to place a telephone call to a remote telephone identified by a pre-determined telephone number. An interface detects actuation of the switch and signals the telephone station to place the telephone call in response to actuation of the switch and places the telephone transmitter and receiver in communication with the telephone to establish telephonic communication between the telephone transmitter and receiver and the remote telephone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.