Interactive graphic system
US3936712A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1973 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Jul 9, 1993 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43L13/022
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An interactive graphics system in which plotting, digitizing and other related capabilities are performed is described in which complex graphics may be generated, edited and developed at a plurality of terminals, independently, with a minimum of hardware and in which precision control of the motion of a plotting table at each location is achieved in response to simplified input commands. Additionally, a novel floating cursor is described by which an operator may control the motion of the carriages of a plotting table or other positioning system actuated during plotting on the table, and digitize various coordinate locations with corresponding storage in a central computer of such locations, all by manually positioning the cursor at the desired locations. The floating cursor is connected with an energy sensor and both the cursor and the sensor are mechanically movable relative to or independently of the carriage. An energy generator is fixedly connected to the carriage and is directed toward the sensor so that relative movement of the cursor and carriage can be detected by the sensor. The carriage is then made to move with the cursor in response to signals generated from the energy …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.