Electronic typewriter having an electronic display
US4194833A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 1977 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | May 9, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00189
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A word processing system for displaying and reproducing alphanumeric characters on a photocopy machine capable of scanning an original document, having a housing including an electronic keyboard with keys representing individual alphanumeric characters, the housing including a display for viewing a portion of the information keys, and a memory circuit coupled to said keyboard for storing and spacing the alphanumeric indicia in memory. A microprocessor circuit, having an algorythm circuit, is coupled to the memory circuit for converting the stored alphanumeric indicia from the memory to a line of dots by comparison with the algorythm circuit; and at least one elongated, solid state reflective display strip, having a single line of reflective dots defining its display screen, is disposed transversely to the scanning direction of the photocopy machine, the strip being coupled to the microprocessor, the microprocessor addressing the proper column of dots in a row to produce the top portion of a complete line of alphanumeric characters on the screen, addressing the same column of dots in the next sequential row, so that the top portion of the characters are shifted one space up to displ…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.