KR20000007000A - Portable compressed color still image display device - Google Patents

Abstract

PURPOSE: A portable display apparatus is to be operated by a dry battery and be connected to a digital still camera for transmitting a digital picture data photographed by a user to a smart media card and displaying the digital picture through a liquid crystal display(LCD). CONSTITUTION: A portable display apparatus comprises: a power device unit including a dry battery(1), a DC/DC converter, a regulator(2), and an A/D converter(3) for providing a stable power; a digital auto camera interface unit(5) for receiving a digital picture data; an optical amount measuring unit(10,11) including an optical amount sensor(10) and an A/D converter(11) for sensing an optical amount and for converting an input analog signal into a digital signal to transmit the digital signal to a controller(4); a display unit(9) for displaying a LCD panel and a residual quality of the dry cell(1); a smart media card interface unit(6) having an interface circuit and a guide; a personal computer interface unit(7,8) including a PC interface USB port(7) and an USB port(8) for transmitting a digital still picture data to the personal computer; and a control unit(4) including a micro-controller and an internal memory for compressing the digital color still picture data. Therefore, in the case of a user having a plurality of smart media card, the user stores desired photographs to the smart media card to edit a digital photograph album.

Description

Portable compressed color still image display device

The present invention relates to a portable color compressed still image display device, and more particularly, it is driven by using a battery and connected to a digital still camera to transfer digital image data captured by a user to a smart media card mounted in the device. The present invention relates to a device that allows a user to carry the device and view digital images through a liquid crystal display device mounted in the device regardless of time and place.

With the digitalization of digital technology, the digitalization of the camera device field is accelerating. Unlike high-end cameras for professionals, automatic cameras have become widespread due to their ease of use and low cost, and the advancement of automatic cameras has also made great strides as digital technology has been widely applied to automatic cameras. In particular, as digital imaging technology is applied to automatic cameras these days, digital automatic cameras that no longer require film have appeared.

Early digital automatic cameras were not widely available due to the high price and difficulty of use, but the development of storage media such as flash memory and the increasing number of developers have made them easy to use and inexpensive. Despite the development of such storage media technology and the increase in the number of participating companies, cameras using existing physical films have maintained their market size due to the convenience of use and the advantages that users can view by printing on actual photo paper.

Digital automatic cameras, unlike conventional automatic cameras, are difficult to print on real photo paper and have difficulty in storing photo data on a personal computer. As a result, it is difficult for a user to carry a picture taken by himself or to organize a personal photo album, and thus the distribution is delayed.

Accordingly, the present invention is to solve the problems of the prior art as described above, the object of the present invention is to connect the digital still camera and transfer the digital image data taken by the user to a smart media card mounted in the device, A portable color compressed still picture display device with mobility that allows a user to carry the device and view digital images through a liquid crystal display device of the same size as the actual photo paper attached to the device regardless of time and place. To provide.

1 is a block diagram of a portable color compressed still image display device according to the present invention;

2 is a front view of the outline view according to the present invention;

3 is a rear view of the outline view according to the present invention;

4 is a right side view of the outline view according to the present invention;

5 is a left side view of the outline view according to the present invention;

Figure 6 is an upper side view of the outline according to the invention

* Explanation of symbols for main parts of the drawings

3: analog to digital converter 13: liquid crystal display

14: smart media card 15, 21: video moving button

16: Hold switch 17: Insert battery cover

18: USB port 19: Smart media card slot, removal guide

20: Change Function and Power Button

The present invention for achieving the above object, the image data interface means with the digital camera; Image data interface means with a personal computer; Color liquid crystal display interface means; Smart media card interface means for data storage; A portable device including a power supply using a battery and a battery remaining amount display means, characterized by image data compression means optimized for display unit resolution and digital information processing means of saturation and lightness using a light amount sensor.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a portable color compressed still image display device according to the present invention.

As shown in FIG. 1, the portable color compressed still image display device according to the present invention includes a power supply unit (1, 2, 3), a digital automatic camera interface unit (5), a light quantity measuring unit (10, 11), and a display unit ( 9, 12, smart media card interface unit 6, personal computer interface unit 7, 8, and the control unit (4).

Hereinafter, a detailed configuration of the present invention will be described with reference to FIG. 1.

The power supply unit of this unit consists of a battery (1), a DC / DC converter, a regulator (2), and an A / D converter (3). Stable power is supplied by inputting the power through the converter to the regulator.

The digital automatic camera interface unit 5 is configured to connect the apparatus and the digital automatic camera to receive digital image data, and the digital data to be transmitted supports a standard format of color still image.

The light quantity measuring units 10 and 11 include a light quantity sensor 10 and an analog to digital (A / D) converter 11. When the light quantity sensor senses the amount of light around the apparatus and sends an electrical analog signal to the A / D converter, the A / D converter converts the input analog signal into a digital signal and transmits it to the controller 4 in the apparatus. The control unit adjusts the brightness of the color still image according to the surrounding environment by changing the chroma information and the brightness information of the color still image data to be displayed from the input light quantity information. If the device is used at night, instead of changing the saturation information and the brightness information, the back light mounted on the display unit 9 is turned on so that an optimized color still image can be enjoyed.

The display unit 9 is composed of a color liquid crystal (LCD) panel indicating a digital still image which the user wants to view and a battery remaining amount display unit which displays the remaining amount of the battery currently being used.

The smart media card interface unit 6 is composed of an interface circuit and a guide provided for the user to freely mount and detach the smart media card at any time.

The personal computer interface (7, 8) is composed of a PC interface USB port (7) and a USB controller (8), and transfers digital still image data stored in the unit to a personal computer or a digital still image edited on a personal computer. It is used to receive image data. When the user connects the unit to the USB port of the personal computer, the personal computer automatically detects the unit.

The control unit 4 consists of a microcontroller and an internal memory, and controls the brightness of still images by changing the brightness and saturation information of the transmitted color digital still image data. Performs overall control of the device such as receiving digital still picture data from the camera and storing it on a smart media card mounted inside the device and compressing digital color still picture data according to the resolution of the liquid crystal display. do. Internal memory is a memory that is often used by microcontrollers.

The external appearance of the apparatus will be described with reference to FIGS. 2 to 7.

Fig. 2 is a front view of the outline of the apparatus, in which a color liquid crystal display device 13 is mounted on the front surface, and an actual color still image is inserted in the drawing.

FIG. 3 is a rear view of the apparatus, illustrating a process in which the smart media card 14 and the smart media card are inserted into the apparatus.

Fig. 4 is a right side view of the outline of the apparatus, showing a power source and an image moving button 15 for driving the operation of the apparatus, and a hold switch 16 used to prevent a malfunction of a user.

FIG. 5 is a left side view of the apparatus, showing a lid 17 of a battery holder into which a battery which is a driving power source of the apparatus is inserted, and a USB port 18 for interfacing with an external apparatus.

Fig. 6 shows the battery level indicator 19, the menu selection button 20 and the rewind button as an upper side view of the apparatus.

This device utilizes the next generation storage media, Smart Media Cards, as a storage medium for still images to alleviate the inconvenience that users have to use compact disk storage devices to store photos taken with digital still cameras. In the case of a user having a card, a digital photo album may be configured by storing desired pictures in a smart media card instead of a personal photo album through chemical printing. It also eliminates the disadvantage that existing users of digital still cameras should be familiar with personal computers and still image editing programs, so that the general public can easily view pictures taken with digital still cameras at the actual picture size.

This device uses digital printing instead of chemical prints of pictures taken with automatic cameras, which can reduce the cost of each time a user takes pictures and develops them. It is possible to promote the popularization of digital still cameras by solving the problem of using digital still cameras, which requires to view pictures taken with digital still cameras with a personal computer that is difficult to move.

Claims (2)

Image data interface means with a digital camera; Image data interface means with a personal computer; Color liquid crystal display interface means; Smart media card interface means for data storage; A portable device comprising a power supply using a battery and a means for displaying battery level, A portable color compressed still picture display device characterized by image data compression means optimized for display unit resolution. The method of claim 1 Portable color compression still image, characterized in that for processing the digital information of the saturation and brightness using the light amount sensor to adjust the brightness of the digital still image or to turn on the backlight at night to display the optimal digital color still image anywhere Display