Electronic endoscope system provided with a means of imaging frozen pictures having few picture image smears
US4901143A · kind A · utility
28Cited by
2References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1989 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Feb 16, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a frozen picture memorizing memory holding as a frozen picture image a picture image signal imaged by an electronic endoscope. By the operation of a frozen picture directing switch, whether the frozen picture is adapted to the memorizing condition or not is judged through a picture image movement detecting circuit. In case it is judged to be adapted to the memorizing condition, the picture image signal is memorized actually as a frozen picture image to obtain a clear frozen picture having little color smear and fogging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.