Data communication system
US4531240A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1982 |
| Grant date | Jul 23, 1985 |
| Priority date | — |
| Expiry date | Sep 29, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/437
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An improved image forming apparatus for data communication system which makes it possible to keep on signal transmission by changing signal transmission path in relation to the operating conditions of the apparatus. The apparatus is constructed with an image signal processor, an input/output unit for governing input and output of signals between the image signal processing device and signal transmission path, first power source for supplying electric power to drive the image signal processor and the input/output unit, and second power source for supplying electric power to the input/output unit when the first power source is not in operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.