Document reader
US4616269A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1985 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Sep 23, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/38
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A document reader contains a document display window for focussing the light reflected from the surface of a given manuscript thereon, a scale formed on the document display window and provided with a cursor capable of being moved in the direction of main scanning, means for freely controlling the shift of a reading line on the manuscript in the direction of sub-scanning, and means for automatically sensing the position of the cursor and the position of the reading line on the manuscript and admitting the numerical values indicative of the two positions for designating the pertinent region of the manuscript to be read out, whereby the operator is enabled to set the pertinent region of the face of the manuscript very easily and accurately while keeping visual observation of the image displayed in the document display window, with the manuscript left standing on the platen glass or kept inserted in the manuscript slot of the document reader.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.