Data recording device for camera
AssigneeNikon Corporation
InventorsTetsuro Goto, Kosho Miura
Life of this patent
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Abstract
A camera system including a camera and a data back has recording, display, and control functions. Signals are exchanged between CPU's of the camera and the data back through interface circuits. In one embodiment, the data back delivers periodic shutter release commands to the camera in an interval mode of operation so that the shutter is released cyclically. A shutter release signal causes an exposure operation, the completion of which terminates the shutter release signal. Then the shutter release signal is generated again to cause another exposure operation. If shutter release is not completed within a predetermined period, a new cycle of shutter release operation is nevertheless initiated.
Claims8
A camera system comprising:
- exposure means for performing each of a plurality of exposure operations in response to a release signal and outputting a completion signal in response to each exposure operation;
- and
- control means for outputting release signals to said exposure means repeatedly with a predetermined cycle period, successive release signals being output dependent upon successive completion signals, respectively, said control means stopping the output of release signals when said exposure means fails to output a completion signal within a predetermined monitoring period, and then outputting a release signal again, independent of a completion signal at the end of said monitoring period.
A device comprising:
- first means for performing each of a plurality of operations in response to a start signal and outputting a completion signal in response to each operation;
- and
- second means for outputting start signals to said first means repeatedly with a predetermined cycle period, successive start signals being output dependent upon successive completion signals, respectively, said second means stopping the output of start signals when said first means fails to output a completion signal within a predetermined monitoring period, and then outputting a start signal again, independent of a completion signal, at the end of said monitoring period.
Dependencies are inferred from the claim text.