Phototypesetter font disk
US4400069A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1981 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | May 15, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41B17/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A phototypesetter font disk has a plurality of circumferentially spaced, optically readable indicia and a strobe track radially spaced from the indicia which contains a plurality of circumferentially spaced timing marks. Each indicia has an associated timing mark that is both radially and circumferentially spaced from its respective indicia. The strobe track has an identifiable reference location from which each indicia timing mark is angularly spaced. Additional marks are interposed between the indicia timing marks on the strobe track to define digital data relating to the font disk. Typically, such data includes font identification information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.