JPS59194570A - Transmitter of color facsimile - Google Patents

Abstract

PURPOSE:To reduce cost required for coloring by allowing a compressing part to divide plural picture data responding to various colors with time sharing at each picture data to compression transmit the picture data. CONSTITUTION:The receiving side checks color facsimile or monochromatic facsimile. If a response signal of the color facsimile is received, the color filters of a color filter switching device 4 are successively switched at every color to transmit the coloromatic. When the remote side uses the monochromatic facsimile, only green data (G) are transmitted. Therefore, the communication with the monochromatic facsimile can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a color 7 axis transmitter, and more particularly, to a color 7 axis transmitter for transmitting color image data read by a special G-coder via a data compression section. .

(1) The prior art and the degree of problem will be explained according to the diagram. Figure 1 is an explanatory diagram of the transmission data of a conventional color 7ac 7mm transmitter. In the diagram, 1 is a color original; , image data that is swept along the horizontal row of pixels 2 shown on the upper side of this color document in the direction of arrow P, reads out data color-separated into red R, green G, and blue B for each pixel, and repeats the arrangement in that order. 3 configuration, which was compressed and sent sequentially.

As a result, the configuration of the compression section and transmission section has changed from the conventional black-and-white system.
It was necessary to use a very complex and different device compared to an axis transmitter.

(C-) Object of the Invention In view of the above-mentioned conventional drawbacks, the present invention aims to provide a color 7-axis transmitter that can be used with almost no changes to the compression section and transmitter used in the conventional monochrome facsimile transmitter. It is.

(d) Structure and object of the invention According to the invention, reflected light from a color document is photoelectrically converted to obtain image data corresponding to a plurality of different colors, and the image data is sent out via a data compression section. In the color 7 axis transmission device, the compression unit temporally divides a plurality of image data corresponding to the specific color into image data corresponding to each color, compresses the data, and transmits the data. This is accomplished by providing a facsimile machine.

(e+ Embodiments of the Invention The embodiments of the present invention will now be described in detail with reference to the drawings. In both figures, corresponding parts to those in FIG.

Figure 2 shows a color facsimile transmitter i6 according to the present invention.
In the configuration diagram, C shows the case without memory, and (B and l show the case with memory.

In FIG. 2, 4 is a color filter switching device, and Tomoe filters are equipped with, for example, green 4G, red 41t, and blue 4B, and each filter can be switched by aligning the optical axis with the optical system 5. At the same time, the CCD sensor 6 repeats the sweep in the direction of arrow P along the sweep line 1a of the color original l. The color original l is continuously moved at a constant speed by a paper feeding mechanism, and the output light from the optical system 5 is imaged on a CCD sensor 6, and is then transformed into a data compressor 7 and a transmitter 8.
is sent to line 9 via. In this case, the switching cycle of the color filter switching device 4 is set to a sequence for each color, and when the sweep of one color original is completed for each color, the color original l is returned to its original position and switched to the next color 1. The image data obtained by using a sweeping method that repeats as many times as the number of colors is
Since only the brightness and darkness of the same color are used, it can be used with the same configuration as the compression section 7 and the transmission section 8 of a conventional black-and-white 7-axis transmitter.

FIG. 2(B) shows the configuration when memory is used.

In the figure, reference numeral 10 denotes a slit which excludes unnecessary diffusely reflected light from the reflected light on the sweep line 1a of the color original 1. 11 is an obtuse prism and is a 4R14 (i, 4B
The images are formed on CCJJ linear sensors 6, 6G, and 6K for each color, respectively, and photoelectrically converted.

The signals for each color of one color original obtained by this photoelectric conversion are temporarily transferred to memory areas 18R and 18G for each color.

1J3, and from these memories, the image data selected by selecting a with the selector switch 14 in the next stage is repeatedly sent to the line 9 via the compressor 7 and the transmitter 8 for each color. By transmitting the data to (N), the black-and-white compression unit 7 and transmission unit 8 similar to the case of (N) can be used.

In the case of (B), the colors were separated using Brism and the image was formed on three systems of 0ut) linear sensors through one projection lens, but the same pixel was formed using three systems of optical systems including color separation filters. 2, and apply CCI to each of the three optical system outputs.
) The linear sensor may be imaged.

Figure 2 (commonly in the case of N and (B), green G is used during color separation.
However, using the fact that the human visual sensitivity almost matches the transmission characteristics of the green G filter, if the receiving side is a black and white 7-axis terminal, the color 7-axis transmitter shown in Figure 3 is By transmitting only the green G data of each color data separated into one color according to the 70-chart of the operation sequence, it is also possible to communicate with a conventional monochrome 7-axis terminal.

That is, it is checked whether the receiving side is color 7 axis or black and white 7 axis. If a response signal of color 7 axis is received from the receiving side, the second round is sent.

As mentioned in section Φ, each color is sent sequentially, and if the other party uses a black-and-white facsimile, only the green G data is sent, and the red R and blue B data are not sent. Furthermore, it is possible to communicate with a conventional black-and-white facsimile by checking whether there is a next document to be transmitted, and if it is found, the process returns to the reading process, and if not, the operation is terminated.

FIG. 4 shows an example of a reception method corresponding to the present invention.

In the figure, image data is received by a color 7 axis transmitter 15 via a line 9 in a repeating sequence of 61 colors each, and is sent to a color thermal transfer printer 18 via a receiver 16 and a data restorer 17, where it is received. The configuration is such that an image 19 is output. A color thermal transfer printer superimposes three colors in eight processes to obtain a color hard copy. In this case, since the image takes that are sequentially transmitted one color at a time can be printed one after another as they are, the processing time is shortened compared to a method in which one color image data (gold) is received and then printed σ'.

(t') Effects of Guanming in more detail (As explained above, the color 7ac 7mm transmitter of the present invention can be applied to the data compression section and transmission section of the currently popular black and white 7acunj IJ, as well as the facsimile Since the line network can be used as is, the cost required for color facsimile can be reduced by ν.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the transmitter of the conventional color 77 comb E'J transmitter, and FIG.
This is a configuration diagram of the IJ transmitting device (N shows the case without memory for image taking, and (B) shows the case with reno memory for image data 7. Fig. 3 shows the operation sequence of the device. Figure 4 shows an example of a reception system diagram corresponding to this redundancy. Fill 6.6R96G, 6B are each 0
01) + Nonya sensor, 7 is compression section, 8 is transmission section, 9
i line, 11 triple image filter with obtuse prism, 13
kL. 18G and 18B indicate memo 1 no areas for each color. Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] In a color 7 axis transmitter that photoelectrically converts reflected light from a color original to obtain image data corresponding to a plurality of six different colors, and sends out the image data via a data compression section, the compression section includes an iI Multiple IIs corresponding to different colors
ia that corresponds to the color of Iji.