Abstract: The digital camera and the image reproducing apparatus and method can reduce a waiting time when a compressed image recorded in a recording medium is reproduced and displayed on a display device, and allows the user to promptly check the reproduced image. Before the user inputs an instruction for sequential or reverse frame feeding, image data is beforehand read out from a recording medium, decompressed, and held in a memory inside the digital camera as prepared images for display. When the instruction for the frame feeding is given, the corresponding prepared image is read out from the memory and then output to the liquid crystal monitor, thereby reducing the reproduction time to achieve fast reproduction. A range of the image which is subjected to a preceding read is a frame image before or after the currently displayed frame, all thumbnail images stored in the recording medium, all main images stored in the recording medium, or all of main images and the thumbnail.

Abstract: A digital camera includes an interface via which the digital signals of a photographed image are transferred to an external data processing device, an internal power supply for the digital camera, and a power supply circuit that receives power from the data processing device. Connecting the data processing device to an interface of the camera via an interface in order to transfer image data from the camera to the device causes a control interface circuit to detect a connection detection signal which is turned on when the camera is connected to the device. Then, the power of an output of a DC/DC converter of the camera is switched from the internal battery to the power supply circuit of the device. The camera is started and put in a communication wait state. In response to a control signal from the device, the camera starts operation to transfer an image.

Abstract: The digital camera and the image reproducing apparatus and method can reduce a waiting time when a compressed image recorded in a recording medium is reproduced and displayed on a display device, and allows the user to promptly check the reproduced image. Before the user inputs an instruction for sequential or reverse frame feeding, image data is beforehand read out from a recording medium, decompressed, and held in a memory inside the digital camera as prepared images for display. When the instruction for the frame feeding is given, the corresponding prepared image is read out from the memory and then output to the liquid crystal monitor, thereby reducing the reproduction time to achieve fast reproduction. A range of the image which is subjected to a preceding read is a frame image before or after the currently displayed frame, all thumbnail images stored in the recording medium, all main images stored in the recording medium, or all of main images and the thumbnail.

Abstract: A digital camera includes an interface via which the digital signals of a photographed image are transferred to an external data processing device, an internal power supply for the digital camera, and a power supply circuit that receives power from the data processing device. Connecting the data processing device to an interface of the camera via an interface in order to transfer image data from the camera to the device causes a control interface circuit to detect a connection detection signal which is turned on when the camera is connected to the device. Then, the power of an output of a DC/DC converter of the camera is switched from the internal battery to the power supply circuit of the device. The camera is started and put in a communication wait state. In response to a control signal from the device, the camera starts operation to transfer an image.