Printer
US4392206A · kind A · utility
1Cited by
18References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1980 |
| Grant date | Jul 5, 1983 |
| Priority date | — |
| Expiry date | Mar 24, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q1/457
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A printer control system which facilitates monitoring of a telephone line and recognition of a predetermined series of digits as they are being dialed. An alphanumeric display displays the digits printed by a printer and which otherwise would be hidden by the printer until the complete number has been dialed and/or the call terminated. The system automatically monitors a subscriber's line, and provides an alarm when a predetermined sequence of digits have been dialed, allowing the operator to divert his attention to other tasks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.