Image pickup apparatus with a lens unit attachment/detachment indication
US6130717A · kind A · utility
19Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1997 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | May 19, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/663
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a video camera apparatus having a camera main-body unit and a lens unit detachably mounted on the camera main-body unit, a state of the lens unit attached to or detached from the camera main-body unit is determined. If the lens unit is not accurately attached to the camera main-body unit, display of the picked up image is prohibited on the camera main-body unit side, and a nonmounting state of the lens is displayed by switching to a predetermined video signal pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.