Transparent telephone access system using voice authorization
US5717743A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Oct 23, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2201/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transparent telephone access system using voice authorization includes a method and system (30 and 60) to protect against the unauthorized use of telephone network (20). By receiving a spoken telephone number (14) from telephone unit (16) and recognizing the spoken phrase that corresponds to telephone number (24), the method and system permit transmission through telephone network (20) to telephone (22). The method and system record spoken phrase (14) in voice recognition server system (18). For the spoken phrase, a voice-template is formed and compared with a voice template formed from a composed phrase including pre-existing or stored spoken digits. In response to the comparison, use of telephone system (16) through telephone network (20) is permitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.