Wireless remote controlled handset lifter system using magnetically coupled ring detection
US7577249B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2003 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Dec 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6545
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An automatic handset lifter is used with a wireless communication system. The system attaches to a conventional telephone and creates a communication link between the telephone and a portable device such as a wireless headset. The system automatically detects the ringing of the telephone by sensing magnetic fields of the telephone speaker. Upon ring detection, the system creates a communications link with the remote device and deploys a mechanical lifting device to lift the handset. Lifting the handset activates the telephone cradle switch to answer the phone and thereby allows the remote device to communicate over the telephone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.