Computer and telephone apparatus with user friendly computer interface and enhanced integrity features
US4991199A · kind A · utility
43Cited by
36References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1988 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | May 5, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/2473
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a programmable microcomputer or microprocessor device with associated memory designed to be operated in most circumstances through a standard telephone 12-key keypad input as augmented by four programmable function keys. The microcomputer device of the present invention, which includes the primary microprocessor operated in conjunction with other computer elements, including memory, has the overall appearance of a telephone. The primary microprocessor of the invention consists of a central processing unit and associated memory and includes enhanced integrity features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.