Apparatus for recording information of camera capable of optical data recording and magnetic data recording
US5649247A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1996 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Sep 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/244
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for recording data to a film, executing: both unchangeable recording such as optical recording, and changeable recording such as magnetic recording for relatively important data, which is required protection from data failure and is permitted to change such as date, date print mode, and trimming direction of printing area, and executing: only magnetic recording for relatively unimportant data, which is allowed some data failure and has few possibility of changing such as aperture value, shutter time value, photometric value, exposure compensation value, and object distance value; wherein the apparatus is housed in a detachable back cover of a camera, and data being transmitted from the main body of the camera to the back cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.