Digital dental system and method
US4409616A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1981 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Mar 20, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B23/283
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital dental system and method for real time display of a patient's dental image to detect changes with respect to at least one previous dental image of the patient. The system comprises an imaging unit for obtaining a real time dental image from the patient, a converter for converting the real time dental image to digital form, an input device for inputting further digital signals corresponding to at least one previous dental image of the patient, a processor for processing the digital signals and the further digital signals to develop corresponding display signals and further display signals, and a display unit and at least one further display unit for simultaneously and in real time displaying the dental image and the at least one previous dental image, respectively, of the patient. A preferred embodiment of the invention involves whole picture processing of the present and previous dental images to determine changes or differences therebetween. Further features of the present invention include the provision of an alignment motion controller for aligning an image intensifier and an X-ray tube (forming the imaging unit), as well as the provision of a capability for selective …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.