Latched film unit, latching device, system, and method

摘要

A latched film unit (10) has a support (12), a filmstrip (14) held by the support, and a latch (16) mounted to the support (12). The latch (16) is reversibly switchable between a first state (38) and a second state (40) and can enable or disable an access right of a memory element (42) in the film unit (10). A latching device (18) operates the film unit (10). <IMAGE>