Telephone card with commercial information and a telephone connection method therefor
US5734702A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1993 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Nov 12, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/0184
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone card has a part for storing the cumulative number of charged calls and a part for storing commercial information to be presented through a telephone set. The commercial information may be voice data to be played through a handset or speaker of the telephone set, and/or character or image data to be displayed on a display of the telephone set. When a card is inserted, the telephone set determines whether or not commercial information is present on the card. When commercial information is present, it is output before normal dialing can occur. When no commercial information is on the card, the telephone set is immediately connected for normal dialing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.