| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a camera system capable of performing the high-speed operation switching of an isochronous band on an IEEE 1394 bus by reducing processing load on the apparatus of a host side. Ž<P>SOLUTION: Cameras 5A and 5B are equipped with an asynchronous streaming packet receiving circuit 52, an asynchronous streaming packet transmitting circuit 53, and an image output switch 54, which is controlled by the asynchronous streaming packet receiving circuit 52 and transmits image data output from the image pickup unit of the camera to the IEEE 1394 bus by means of isochronous packets. When the asynchronous streaming packet receiving circuit 52 receives an asynchronous streaming packet addressed to it conveying use rights for an isochronous band, an acknowledge packet is transmitted from the asynchronous streaming packet transmitting circuit 53 and the image output switch 54 is set to an on state in which the isochronous packet transmission is enabled. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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