System and method for remote telephonic station actuation
US5159317A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1991 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Jul 12, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A home communicator includes aid request circuitry capable of establishing communication with a central monitoring station in response to a first predetermined activation step performed by a subscriber and test circuitry capable of self-testing the home communicator in response to a second predetermined activation step formed by the subscriber. The home communicator further includes enable/disable circuitry capable of transmitting an identification number to a central monitoring station in response to a third predetermined activation step with the aid request circuitry and the test circuitry being unresponsive prior to the functioning of the enable/disable circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.