Apparatus and method for verification of the presence of a remote user
US6418198B2 · kind B2 · utility
29Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1998 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | May 27, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/654
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone answering apparatus for verification of the presence of a remote user includes a detector, and a controller operatively connected to the detector and to a timer, wherein the controller restarts the timer upon detection of a telephone signal from the remote user and terminates a telephone connection if the telephone signal is not detected within a set period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.