Digital information system
USRE39470E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2001 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Mar 30, 2021 |
Classification
- Technology area (CPC —)General
Abstract
The invention relates to a digital information system (10) for displaying information on at least one display means with the aid of at least one projector (22). The exposures are presented at places accessible to and frequented by a general public. The information system (10) includes external information mediators (24) and information is controlled dynamically through the medium of a communication interface (26) and through the medium of an exposure handler in a central computer (28). The inventive system also include a communication interface (14) against an elective number of station computers (34) having connected projector computers (38) which control projectors (22) for displaying pictures or exposures. The station computers (34) and peripheral equipment are situated at mutually distanced places. According to one particular field of use, the places mentioned are subway stations (16, 18, 20) and projectors (22) project exposures or pictures onto display means positioned at selected places in the stations (16, 18, 20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.