Pupil measuring system and Alzheimer's disease diagnosing system
US5883691A · kind A · utility
16Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1996 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/112
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Light sources illuminate eyes in a predetermined cycle using the pulse of light. Video cameras are directed to the eyes, and a video signal of the pupil is output. This video signal is output to a digital computer via video control units, a multiplexer, and an analog-to-digital converter. The digital computer detects the size of the pupil by processing an input video signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.