Telephone training apparatus and method
US5456605A · kind A · utility
2Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1993 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | Dec 20, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/715
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone training device to be operated by children or someone without a working knowledge of telephones, uses at least one working telephone, and a memory to store a first set of numbers, a receiver to accept a second set of numbers, a comparator to compare the second set of numbers to the first set of numbers, and a tone generator. The tone generator generates one tone when the handset is removed from the telephone, a second tone when the second set of numbers is different from the first set of numbers, and a third tone when the second set of numbers is the same as the first set of numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.