Victor Company of Japan, Limited

Naoki Hanada

Hiroshi Nishiyama

Tetsuya Oura

Hiroyasu Kunimi

Norio Kurashige

A recording medium has clusters assigned first cluster information pieces respectively. The clusters store a file or files of image data. When a received signal is a copying command indicative of a requested file, image data in the requested file is read from one or more clusters and is sent. Detection is made about a first cluster information piece or pieces assigned to the one or more clusters from which the image data is read. The detected first cluster information piece or pieces are labeled as a second cluster information piece or pieces. Identification is made about a first cluster information piece or pieces assigned to one or more clusters loaded with image data in the requested file. When the identified first cluster information piece or pieces are equal to the second cluster information piece or pieces, the requested file is recognized as a file which has been copied.

Camera and file management method used therein

A video camera which is provided with an inter-line type CCD and also which enjoys a function as a digital still camera. The video camera includes an irising mechanism for adjusting a quantity of light incident upon the CCD, an iris driving circuit for driving the irising mechanism, and a camera microcomputer for controlling operations of adjusting an incident-light quantity by the irising mechanism by controlling the iris driving circuit. The camera microcomputer controls the iris driving circuit to drive the irising mechanism, whereby the incident light upon the CCD is blocked to perform only a read-out operation while data of all the pixels is read out from the CCD.

Growing community of inventors

Kanagawa-ken, Japan

Naoki Hanada