JPS63296484A - Memory cartridge - Google Patents

Abstract

PURPOSE:To display a desired image which is stored by providing an image display device and a frame feed switch to a memory cartridge equipped with a semiconductor image memory for storing digital image data of plural frames. CONSTITUTION:The memory cartridge 10 is equipped with the semiconductor image memory 12 for storing the image data of plural frames in a prescribed order, the display device 14 which inputs image data read out of the image memory and displays an image represented by the image data, a frame selection switch 13 for selecting the image data to be displayed on the display device, and a control means 11 which reads the image data selected in response to the input from the frame selection switch and displays it on the display device. Consequently, the image data stored in the image memory is specified in response to the frame selection input switch input, supplied to and displayed on the display device.

Description

DETAILED DESCRIPTION OF THE INVENTION Summary of the Invention A memory cartridge equipped with a semiconductor image memory for storing digital image data for a plurality of frames is provided with one image display device and a frame advance switch to display predetermined image data in one image memory. read out and display the image on the display device,
In addition, the displayed images are sequentially shifted in response to input from the frame advance switch.

BACKGROUND OF THE INVENTION This invention relates to a memory cartridge with a semiconductor image memory, such as a memory ψ cartridge for storing digital image data provided by a digital electronic still camera or other image data recording device.

Electronic still cameras or still video cameras that are currently available and commercially available perform FM modulation on a video signal and record it in the form of an analog signal on a magnetic disk as a recording medium.

A magnetic disk is rotatably housed inside a case or jacket. Video signals of about 50 frames of images can be recorded on a magnetic disk. When such a magnetic disk is loaded into a playback device equipped with a CRT display device and driven for playback, the video signal recorded on the magnetic disk is played back and displayed on the CRT display device.

With the recent progress in IC memory manufacturing technology, large-capacity semiconductor memory chips have been realized.Memory cartridges that digitally store one image data and digital electronics that can record captured images in this memory cartridge. Still cameras have come into the limelight. Since image data is stored in such a memory cartridge in the form of an easy-to-handle digital signal, there are two possibilities for the development of various applications.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a memory cartridge having a function of displaying a desired stored image by taking advantage of the memory cartridge's ability to handle and store digital signals. do.

A memory cartridge according to the present invention includes a semiconductor image memory capable of storing multiple frames of image data in a predetermined order;
A display device 2 to which image data read from the image memory is input and displays an image represented by this image data.
A frame selection switch for selecting image data to be displayed on the display device, and a control means for reading the selected image data from the image memory and displaying it on the display device in response to an input from the frame selection switch. It is characterized by having A memory cartridge is a semiconductor memory housed in a case or cartridge, and includes a memory card.

According to this invention, the designated image data stored in the two-image memory is read out in response to the input of the frame selection switch, and is provided to the display device for display. Since the memory cartridge has an image data playback function, images can be played back without the need for a separate playback device1.
It's easy and convenient.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 shows the appearance of a memory cartridge. The memory cartridge 10 has many terminals 19A for electrical connection to a digital electronic still camera or other digital image recording device.
It is equipped with These terminals 19A connect data buses, address buses, control lines, etc. Further, a liquid crystal display 14 is provided on a part of the surface of the memory cartridge 10, and this liquid crystal display 14 includes a memory
A semiconductor image memory (second
Frame number D1 indicating the number of remaining frames that can be stored in the 2-image memory 12 or the photographing order in addition to the image represented by the image data stored in the figure 12). The photographing date D2 etc. are displayed. In addition to these data, data indicating the location where the photo was taken.

Other index information etc. may also be displayed. A solar cell 17 for supplying operating power to the display 14 is arranged on the surface of the memory cartridge 10 on which the display 14 is provided. Also provided are a forward switch L3a for forwarding frames of an image to be displayed on the display 14, and a reverse switch 13b for forwarding frames in the reverse direction. In the image memory 12, digital data of a plurality of frames of images are stored in a certain order (for example, in the order of shooting) together with data such as the above-mentioned display DI and D2.

By pressing the forward switch 13a, the next image in the above order of the currently displayed image is read out, and by pressing the backward switch 13b, the previous image is read out from the memory 12 and displayed on the display 14. be done.

FIG. 2 shows the electrical configuration of the memory cartridge 10. The terminals 19A are collectively shown as a connector 19. What about the image memory 12? It has a capacity to store digital image data for several frames. When this cartridge 10 is installed in an image recording device such as the above-mentioned digital electronic still camera, the cartridge 10 is electrically connected to the image recording device via the connector 19. Image data provided from the image recording device and the above display D1. The data for D2 are stored frame by frame in a predetermined area of the image memory 12 in a fixed order (for example, the order of input or the order of frame numbers).

The memory cartridge 10 further includes 9 image memories 12
A display buffer memory 16 for temporarily storing digital image data read from the display for display. The above-mentioned liquid crystal display 14. Display drive circuit 15 including a D/A converter that converts digital image data into an analog video signal. In the above order, the reverse frame advance switches 13a, 13b, the CPU 11 (including a memory storing a program) for display control including frame advance control performed in response to input from the switches 13a, 13b, and the solar cell 17. ．． and image memory 12. Display memory 16. A dry battery 18 is provided for supplying operating power to the drive circuit 15 and CPU II. Depending on the type of display, the drive circuit 15 may
/A converter may not necessarily be provided.

When one input signal is given from the forward switch 13a, the CPU II reads the image data corresponding to the next frame in the above order of the currently displayed image from the image memory 12, transfers it to the display memory 16, and sends it to the drive circuit. 15 to give the operation command.

The image of the next piece is displayed on the display 14. When there is an input from the reverse switch 13b, the CPU II controls the data of the image immediately preceding the currently displayed image in the above order to be read out and displayed on the display 14 in the same manner. In this way, the operator can move the frame advance switch 13a
, by pressing 13b.

Display images can be sequentially shifted forward or backward.

Such image display can be performed both when the memory cartridge is installed in the image recording device and when it is removed.

If necessary, the memory φ cartridge IO may be provided with a power switch so that the image is displayed only when the power switch is turned on. It is preferable that the image with the smallest frame number be automatically displayed when the power switch is turned on.

It is also possible to provide power from the dry cell battery 18 only to the CPU II and the image memory 12, and to operate the other circuits 14, 15, and 16 using the solar battery 17. If the image memory 12 is a non-volatile memory, no power supply will be necessary in the inactive state.

In this way, since the memory cartridge 10 functions as a recording medium for image data as well as a playback device, it is possible to easily play back images without installing the memory cartridge in a separately prepared playback device. It is convenient to be able to do so.

The image displayed on the display 14 may be the entire one-frame image or a predetermined portion thereof.

The above-described memory cartridge could also be used for other purposes, such as as a boat rate to keep on a desk, or as an ID card for the owner's photographic materials.

The frame selection switch is not limited to the forward switch or reverse switch described above, but it is also possible to use, for example, a numeric keypad that allows you to specify a frame number, an automatic switch that moves one frame at a time, and the like.

In the above embodiment, the memory cartridge is connected to a digital electronic still camera or other recording or reproducing device through electrical contacts, but it may also be connected through optical or magnetic coupling. Needless to say.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the external appearance of the memory cartridge. FIG. 2 is a block diagram showing the electrical configuration of the memory cartridge. IO...Memory Fist Kartli Soji. 11...CPU. 12... Image memory. 13a...Forward switch. +3b...Reverse feed switch. 14...Liquid crystal display. 15...Display drive circuit. I6: Display buffer memory. 17...Solar battery. 18... Dry battery. 19... Connector. 19A... Connector terminal. Patent applicant: Fuji Photo Film Co., Ltd. Agent
Patent attorney Hosomichi Kato (1 other person) Figure 1 Figure 2

Claims (2)

[Claims] (1) A semiconductor image memory capable of storing multiple frames of image data in a predetermined order, a display device into which image data read from the image memory is input and displays an image represented by this image data, and a display device that displays the image. a frame selection switch for selecting image data to be displayed; and control means for controlling the selected image data to be read from the image memory and displayed on a display device in response to an input from the frame selection switch. ·cartridge. (2) The memory cartridge according to claim (1), wherein the frame selection switch is a frame advance switch for shifting the displayed image one by one in the forward or reverse direction of the predetermined order.