KR0147555B1 - Color video printer - Google Patents

Abstract

The present invention relates to a color video printer capable of printing a developed film.

The present invention transmits the light of the light source unit to the color film developed in the complementary color mounted on the light source unit, the color film mounting unit, the color film mounting unit for emitting a white light source, and the photoelectric conversion unit for converting the transmitted light into an electrical signal, photoelectric Color prints for home use by adding a film mounting unit to a color video printer, including a print control unit for controlling the printing operation to print the output of the complementary color correction unit by inverting the output of the conversion unit and converting it into an original color image signal. It can also be used as a cross-linker, giving convenience.

Description

Color video printer

1 is a block diagram of a conventional color video printer device.

2 is a block diagram of a color video printer device according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

100: light source unit 200: photoelectric conversion unit

300: signal processor 400: frame memory

500: memory controller 600: system controller

700: T.P.H. Controller 800: T.P.H.

900: Servo

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color video printer apparatus in a printer apparatus, and more particularly, to a color video printer apparatus capable of printing a developed color film.

With the spread of general home color video printers to the public, its application is increasing.

This color video printer sublimates the energy of the thermal print head (hereinafter referred to as TPH) by the amount of dye that is applied to the recording paper by sublimating the dye on the film coated with the energy generated by the TPH. As a device for displaying images and pictures, various functions are added to consumers by using special image processing techniques such as overlapping screens and multiple screens.

The general configuration and operation of such a color video printer will be described in more detail as follows.

As shown in FIG. 1, in the first to third A / D converters 11-13, a video signal transmitted from a signal input source such as a television or a video cassette recorder generating a composite video signal is converted into R, Input by G and B signal and convert to digital signal.

The frame memory 20 stores the outputs of the first to third A / D converters 11-13 by frame.

The memory controller 30 controls timing of data writing and reading of the frame memory 20.

The microcomputer 40 recognizes key data input by key input means such as a button key or the like mounted on the set, and generates a control signal corresponding thereto.

T.P.H. The controller 50 protrudes the data stored in the frame memory 20 line by line according to the read control signal output from the memory controller 30, and transmits the line data, the strobe signal, the latch signal, and the clock signal to the TPH 60. Output to

In T.P.H. (60), T.P.H. The controller 50 converts the output of the controller 50 into a current signal form and generates a resistor to generate heat.

On the other hand, in the servo unit 70, a supply reel (not shown) and a take-up reel (not shown) for transferring a drum (not shown), an ink ribbon and applying dye to the recording paper are not shown. Control of the driving).

However, the above-described color video printer can print only a desired screen with respect to video signals flowing from a plurality of external signal input sources.

On the other hand, in printing photographs of color film taken with a camera that is widely used in homes, there were many losses and hassles both in terms of time and economics due to the price of the printer and the laborious work of the printing process. .

Accordingly, an object of the present invention is to provide a color video printer, in which a color mounting apparatus is provided, and a video signal can be photoelectrically converted from an developed film using an image pickup device, and the photoelectric signal can be processed to print an image signal. It is to provide a printer device.

In order to overcome the above-mentioned object, the color video printer device according to the present invention receives the image signal from the signal input source and expresses the energization factor to the heat generating element (TPH) composed of a heating element after comparing the gray level preset in line units with the gray level. In a video printer apparatus,

Light source means for emitting a white light source;

Color film mounting means;

Photoelectric conversion means for transmitting the light of the light source means to the color film developed in the complementary color mounted on the color film mounting means and converting the transmitted light into an electrical signal;

Complementary color correction means for inversely converting the output of said photoelectric conversion means into an original color image signal;

And printing control means for controlling the printing operation to print the output of the complementary color correction means.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of a video printer device according to the present invention.

2 is a configuration diagram according to an embodiment of the color video printer apparatus according to the present invention.

Referring to FIG. 2, the light source unit 100 includes a white light source 110 emitting white light, a condenser lens 120 condensing an optical signal emitted from the white light source 110, and

A film mounting portion (not shown) to mount a color film (film),

Light transmitted through the second condenser lens 210 for condensing parallel rays emitted through the color film output from the condenser lens 120 and the color film developed with complementary colors output from the second condenser lens 210 Is a signal for separating the output of the CCD 220 and the output of the CCD 220 into complementary color signals C, M, and Y of the R, G, and B signals. R, G, B signal or the R, G, B signal of the signal separation unit 230 is output from the photoelectric conversion unit 200 consisting of a separation unit 230 and a signal input source for generating an external composite image signal First to third control switches SW1 to SW3 for selecting the first to third control switches SW1 to SW3 respectively to convert the outputs of the first selection part 310 into the form of digital signals. A signal conversion unit composed of the D converters 321-323, and a complementary color compensator composed of the first to third inverters 331-333 for inverting the output of the first to third A / D converters 321-323, 1st A second selector comprising a fourth to sixth control switch SW4-SW6 for selecting an output of the three inverters 331 to 333 or an output of the first to third A / D converters 321 to 323; A signal processor 300 formed of 340,

A frame memory 400 storing the output of the second selector 340 in units of frames,

A memory controller 500 for controlling the timing of writing and reading data of the frame memory 400;

A system controller 600 for recognizing key data input by key input means such as a button key or the like mounted on the set and generating a control signal corresponding thereto;

According to the read control signal output from the memory controller 500, the data stored in the frame memory 400 is read line by line, and the T.P.H. Controller 700,

T.P.H. T.P.H. (800) for converting the output of the controller 700 in the form of a current signal to heat and print a resistor,

To the servo unit 900 which controls the driving of the drum (not shown) for driving the rotation of the TPH 800, the supply reel (not shown) and the take-up reel (not shown) for transferring the ink ribbon. It is composed.

Here, the frame memory 400, the memory controller 500, and the T.P.H. The controller 700, the system controller 600, the T.P.H. 800, and the servo unit 900 correspond to a print controller.

Hereinafter, the operation of FIG. 2 will be described in detail.

According to FIG. 2, the light passing through the condenser lens 120 from the white light source 110 is focused on the color film as parallel rays and filtered by the complementary image of the film itself. In other words, the color film includes an image composed of R (Red), G (Green), and B (Blue) as components of natural light, and C (Cyan), M (Magenta), and Y (Yellow), which are complementary colors of light. ) To store the natural image.

It is because a general color film consists of three colors of R, G, and B, and is developed by three colors of C, M, and Y which are complementary colors of natural light.

The light passing through such a color film becomes light composed of C, M, and Y, and the complementary light passed in this way is an area corresponding to the effective area of the final CCD 220 by the condenser lens 210. Photoelectric conversion is performed by condensing and converting them into electrical signals.

In the signal separator 230, the electrical video signal generated from the CCD 220 is divided into C, M, and Y signals, and the separated three-color image signal is used for the first to third control of the first selector 310. It is input to the first input terminal of (SW1-SW3).

The R, G, and B signals flowing from the signal input source for generating the composite video signal from the outside are input to the second input terminal of the first to third control (SW1-SW3).

In the normal mode under the control of the system controller 600 which recognizes the key data according to a key input specified by a user, a selection control signal is output to the first selecting unit 310 and the second selecting unit 340 to output the first control signal. It is shorted in conjunction with the input terminal and performs the same operation as the conventional method described with reference to FIG.

In the printing board for printing the color film, a selection control signal is output to the first selector 310 and the second selector 340 under the control of the system controller 600 to be shorted in conjunction with the second input terminal. Here, the description will be given based on the film printing mode.

The first to third A / D converters 321 to 323 convert the output signal switched by the first to third control switches SW1 to SW3 switched by the selection control signal into a digital signal form.

In the first to third inverters 331 to 333, the image signal output from the CCD 220 is a video signal for a complementary color image, and thus an inverse conversion of the complementary color signal is required to change the original signal to its original image. Therefore, the data values of the digital C, M, and Y signals, which are output signals of the signal separation unit 230 output through the first to third A / D converters 321-323, are set to 1 if 0 and 1 for 0. The signal is converted into R, G, and B signals having complementary relations of the C, M, and Y signals, and input to the first input terminal of the fourth to sixth control switches SW4-SW6.

In the fourth to sixth control switches SW4-SW6, the outputs of the first to third A / D converters 321 to 323 are switched and stored in the frame memory 400 in frame units under the control of the system controller 600. do.

In the memory controller 500, the first to third A / D converters 321-323 control timing of an A / D conversion operation, and control timing of data writing and reading of the frame memory 400.

T.P.H. The controller 700 reads data stored in the frame memory 400 line by line according to a read control signal output from the memory controller 500 to determine a preset gray level value, data for a line after gray level comparison, and heat generation time. A strobe signal, a latch signal generated when application of serial data for one line to the TPH 800 is completed, and a clock signal for synchronizing while data is outputted.

In T.P.H. (800), T.P.H. The controller 700 converts the output of the controller 700 into a current signal form and heats and prints the resistor.

Meanwhile, the servo unit 900 controls the driving of a supply reel and a take-up reel for transferring a drum and an ink ribbon.

Additionally, according to the present invention, the image quality of the printed image is determined according to the characteristics of the color video printer and the image pickup device, and the superiority of the image quality may be slightly inferior to that of the general photograph. It has the great advantage of being able to print photos as much as possible and adding various functions to color video printers.

As described above, the color video printer device according to the present invention has an effect of reducing the convenience and economic burden that can be used as a home color photo printer by adding a film mounting part to a home color video printer.

Claims (6)

Photoelectric conversion means for transmitting light to the color film developed with complementary colors and converting the transmitted light into an electrical signal; Complementary color correction means for inverting the output of the photoelectric conversion means to change the original color image signal; And print control means for controlling a printing operation to print the output of the complementary color correction means. The printing apparatus of claim 1, wherein the printing apparatus is embedded in a color video printer. A video pre-set device having print control means for inputting a video signal for a frame and expressing an energization factor to a heat generation factor (TPH) composed of a heating element after pre-comparation of a gray level value and line-by-line comparison, and emits a white light source. Light source means; Color film mounting means; Photoelectric conversion means for transmitting the light of the light source means to the color film developed in the complementary color mounted on the color film mounting means and converting the transmitted light into an electrical signal; And a complementary color correction means for inverting the output of the photoelectric conversion means and converting the output to the original color image signal. 4. The light source according to claim 3, wherein the light source means comprises: a light source means for emitting a white light source; And a first lens unit for collecting the optical signal emitted from the white light source. 5. The display device of claim 4, wherein the photoelectric conversion means comprises: a second lens unit configured to collect parallel rays output from the first lens unit through a color film; An imaging device for converting light transmitted through the color film developed to the complementary color output from the second lens unit into an electrical signal; And a signal separator for separating the output of the thin element into C (Cyan), M (Magenta), and Y (Yellow) signals. 6. The apparatus of claim 5, further comprising: a first selector configured to select R, G, and B signals or C, M, and Y signals output from a signal input source for generating an external composite video signal; A signal converter converting the output of the first selector into a digital signal form and outputting the digital signal to the complementary color correction means; And a second selector for selecting the output of the complementary color correcting means or the output of the signal converting portion and outputting the selected output to the print control means.