Camera and file management method used therein

Abstract

This invention provides a camera and method able to detect information about files of captured-image / sound data which have been copied onto a data backup area in a personal computer. The camera comprises file recording unit for recording image data of file in cluster unit; receiving unit for receiving the control signal from PC, discrimination unit for discriminating whether or not the received control signal is copy command of file; recording unit for recording the cluster information of image data copied in PC after the control signal is copy command; detection unit for detecting the file with entirely coincident cluster information after comparing all the cluster information recorded by file recording unit and the cluster information recorded by recording unit, and only the detected file is deleted.

Description

technical field [0001] The present invention relates to a photographing device capable of transmitting information recorded in a built-in recording medium to an external recording device and a file management method used in the photographing device. Background technique [0002] Conventionally, photographic devices have built-in recording media such as optical discs, semiconductor memories, and hard disk drives (HDD: Hard Disk Drives), and record data such as audio data, still image data, and video data on the recording media, or reproduce these data from the recording media. function. Examples of the photographing device include a video camera (integrated type), a digital camera, and the like, and a video camera will be described as an example below. As the optical disc, a digital versatile disc (DVD: Digital Versatile Disk) having a diameter of 8 cm is used. In addition, as the semiconductor memory, an SD (Secure Digital) memory card, a CF card (registered trademark), a ...

AI Technical Summary

Problems solved by technology

[0004] Here, when the shooting data is copied from the recording medium built in the camera to the data backup area of ​​the PC, the shooting data recorded on the recording medium in the camera becomes useless.

On the other hand, when the shooting data is transferred from the recording medium in the camera to the data backup area of ​​the PC, the shooting data recorded in the recording medium in the camera does not need to be retained.

However, when the photographed data is transferred, the photographed data may be deleted by mistake due to insufficient capacity of the recording medium of the PC, failure to connect the cable, accidents, etc.

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