JPH0622155A - Facsimile system - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to reduce the loss time from the time the receiver receives the data until the recording ends. [Composition] In a facsimile system for transmitting / receiving color image data, the transmitting side declares the recording order according to a predetermined color system from the receiving side, and transmits the color image data according to the recording order declared to the receiving side. Yes (S2
4 to S33).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile system, for example, a facsimile system for communicating color images.

[0002]

2. Description of the Related Art Conventionally, facsimile machines have communicated only black and white images, but in recent years, facsimile machines that communicate color images have gradually appeared. In these color facsimile apparatuses, the communication order of color image information is fixed and set in the order of RGB whether it is dot sequential or frame sequential.

[0003]

However, in the above-mentioned conventional example, since the order of communication of color images is fixed in the order of RGB, for example, the order of color recording of the recording element of the facsimile apparatus on the receiving side is performed. However, if the order is GBR, the receiving side must rearrange the order of the information of the color image for recording.

FIG. 4 shows a conventional color image communication timing chart. However, since the color order of recording in the color system is fixed in the recording section of the color copying machine, for example, the recording order from the transmitting side is different. When the color image information is transmitted in order, it is necessary to wait for the recording start until the first recording color information is received. In FIG. 4, the recording order of colors on the recording side is R,
The timing when G and B are set in order is shown.

The present invention has been made in view of the above-mentioned drawbacks of the conventional example, and an object of the present invention is to provide a facsimile system capable of shortening the loss time from the reception by the receiver to the end of recording. Is in the point of providing.
In addition, recently, each company has begun commercializing a color facsimile machine in a unique mode. R is the color system for color images.
GB, YMC, YIQ, Lu * v *, YCrCb and the like.

In the display device, Y (yellow) M (magenta) C (cyan) or the like is used for RGB printing. Therefore, a facsimile apparatus for printing is configured to convert RGB data into YMC or YCrCb for communication. However, in the above-mentioned conventional example, the YMC or YCrCb system of the printing system is always converted for communication, and therefore, there are the following drawbacks.

Among the recent facsimile machines, a type equipped with a display device has begun to appear, but it is still equipped with a monochrome display, but it is expected that a display-mounted facsimile device will become popular in the future. Further, it is expected that some facsimile machines equipped with a color display will not have a printing (recording) section. Therefore, communication to such a color display-equipped facsimile machine is performed by YMC or YC.
RGB systems are preferred rather than rCb systems.

Another object of the present invention is YMC or YCrCb.
The point is to provide a facsimile system that can simplify communication processing by omitting the conversion system.

[0009]

[Means for Solving the Problems]
In order to achieve the object, the facsimile system according to the present invention is a declaration that declares a recording order according to a predetermined color system from a receiving side to a transmitting side in a facsimile system that hierarchically transmits / receives color image data. And transmitting means for transmitting the color image data from the transmitting side to the receiving side according to the recording order declared by the declaring means.

[0010]

According to such a system, the declaring means declares the recording order according to the predetermined color system from the receiving side to the transmitting side, and the transmitting means is declared from the transmitting side to the receiving side by the declaring means. Color image data is transmitted according to the recording order.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. <First Embodiment> FIG. 1 is a block diagram showing the construction of a facsimile machine according to a first embodiment of the present invention. In the figure, a CPU 2 is connected to a ROM 3 and a RAM 4 by a bus to control the operation of the entire apparatus according to a program stored in the ROM 1. The RAM 4 is used as a work area for the CPU.

The reading section is mainly composed of a CCD line sensor and a reading motor 12, and is used for reading an original image. The image recording unit is composed of a color recording head 10, a recording motor 13 and the like, and is used for recording received or copied images. Reference numeral 9 denotes a hierarchical encoding / decoding LSI for hierarchically transmitting image data. The modem 14 modulates / demodulates image data and control procedure data, and is connected to the line 23 via the NCU 15. NCU
Holds the loop current of the line and performs line exchange with a telephone (not shown).

FIG. 2 shows the communication procedure of this embodiment. FIG. 3 shows the timing of color image communication of PIX transmission (image transmission) in FIG. When the image data shown in FIG. 3 is transmitted, the above-described LSI 9 hierarchically encodes the image data. FIG. 4 shows the timing of general color image communication. FIG. 5 shows a flow chart for explaining the operation of this embodiment. In FIG. 5, when the power is turned on, the parameters are initialized in S (step) 1 to S2, S4, S.
Wait for startup in S6 and S8. When the user scans the transmission, the transmission process is performed in S5, and after the execution, the process returns to the standby state again and waits for activation. A detailed flowchart of S5 is shown in FIG.

In FIG. 6, the pre-procedure is changed from S12 to S12 →
Image transmission is performed in a loop of S13 → S14 → S12, and S
The post procedure is performed at 15. However, FIG. 2 shows the communication procedure when the image is one page. S12 is a process of transmitting an image for one page, and the detailed flow of S12 will be described with reference to FIGS.
Shown in. In FIG. 7, the parameters are initialized in S21 and S
In step 22, it is determined whether the transmission mode of the color image is dot-sequential or frame-sequential (see B
If it is dot sequential (by IT), proceed to S23.

The detailed flow of S23 of FIG. 7 is shown in FIG.
Incidentally, since the dot sequence is not weighted in this embodiment, the description will be given later. In S24, S28, S32, S36, S40, it is determined which order of the information of the color of the frame sequential color system should be determined (by BIT of the NSF signal), and the order of the color sequence of the frame sequential is RGB order. Then S24 to S25, S26,
Proceed to S27. Therefore, the data is transmitted in the order of R → G → B.
After transmitting the image for one page, the process returns.

If the order of the frame sequential color system is the order of RBG, the process proceeds from S28 to S29, S30 and S31. Therefore,
Send in the order of R → B → G. After transmitting the image for one page, the process returns. If the order of the frame sequential color system is the order of GBR, the process proceeds from S32 to S33, S34 and S35. Therefore, the data is transmitted in the order of G → B → R. After transmitting the image for one page, the process returns.

If the order of the frame-sequential color system is GRB, the process proceeds from S36 to S37, S38 and S39. Therefore,
Send in the order of R → G → B. After transmitting the image for one page, the process returns. If the order of the frame sequential color system is BGR, the process proceeds from S40 to S41, S42 and S43. Therefore,
Send in the order of B → G → R. After transmitting the image for one page, the process returns.

If the order of the frame sequential color system is not BGR, the process proceeds from S40 to S44, S45 and S46. Therefore,
Send in the order of R → G → B. After transmitting the image for one page, the process returns. In the case of dot sequence, as shown in FIG. 9, after initializing the parameters in S51, S52 and S5 are executed.
3, the information of the color system forming one pixel is transmitted in S54,
In S5, the pixel pointer for control is incremented by 1, and in S56, it is determined whether the transmission of the color image for one page is completed. If No, the process returns to S52. When the transmission of the color image for one page is completed through the loop, the process proceeds to S57 and S58. Therefore, the page pointer for control is incremented by 1, the pixel pointer is initialized, and the process returns to S52. When the transmission of all the image information of the original set in the facsimile apparatus to be transmitted is completed, S59
Return from. Point-sequential transmission is known.

As described above, according to the first embodiment, in the facsimile apparatus for transmitting / receiving a color image, the receiving side declares the recording order of colors such as (R, G, B) and the transmitting side By providing the control means for transmitting the color image according to the order of the color recording on the receiving side, it is possible to obtain the effect of reducing the time loss from the reception by the receiver to the end of recording.

In the above-described embodiment, the color system of colors is RG.
Although it is expressed in the B system, the present invention is not limited to this and may be a method of expressing color information used in a display element such as a CRT display. On the other hand, in a printing system (for example, a color copy), colors are expressed by a YMC system as a color system. Therefore, it is also possible to replace the description of RGB in this embodiment with YMC. <Second Embodiment> Next, a second embodiment will be described.

In the second embodiment, as in the first embodiment,
It has the configuration of FIG. 1 and performs communication according to the communication procedure of FIG. The overall operation also follows FIG. So, below,
The operation different from that of the first embodiment will be described. FIG. 10 is a flow chart for explaining the transmission processing according to the second embodiment. First, in S61, color reading is performed (in this embodiment, RGB reading is performed), and in S62 and S63, the color sequence of the recording / display system of the receiving side machine is determined (this is the receiving side shown in the communication procedure of FIG. 2). (Depending on the BIT in the NSF signal), if the receiving side can record in Y, M, C systems, S63,
Progressing to S64, RGB → Y, M, C conversion is performed, and Y,
Image data expressed in M, C system is transmitted, and the receiving side performs Y,
If you want to record in the M and C systems, proceed to S66 and S67, and RG
B → Y, Cr, Cb conversion is performed, image data expressed in Y, Cr, Cb system is transmitted, and if the receiving side desires recording in RGB system, the process proceeds to S68, and RGB system image data is transmitted. .

Image data of either format is 1
After page transmission, it is checked in S69 whether all pages have finished, and the process returns to S61 and loops until all pages of the document have finished. Upon completion of all pages, the process returns from S69.
FIG. 11 shows a flowchart for explaining a general receiving / recording operation, and FIG. 12 shows a flowchart for explaining a receiving / recording operation according to the second embodiment.

In the general example (FIG. 11), the image information for one page is converted to RGB system, YMC system, or YCr in S201.
The Cb system is received, and in S202 and S205 it is determined which system is used, and this is the recording system of the machine that received it (in this example, the recording of the receiver is described using the RGB system as an example). The conversion is performed to record one page in the RGB system, and loops from S209 to S201 to receive / color convert / receive until image data for all pages is received.
The recording process is repeated. Upon completion of all pages, the process returns from S209.

On the other hand, in the second embodiment (FIG. 12), FIG.
As described previously in the flow chart of 0, the transmitter which has previously understood by the NSF signal of the pre-procedure shown in FIG. 2 that the receiving side desires recording in the RGB system is S12 → S15 → S18. Since RGB image data is transmitted, the RGB system is received in S71 and the R image is received in S72.
GB recording is performed, and it is determined in S73 whether reception of all pages has been completed, the process returns to S71 until the end of all pages, and the reception process is repeated. When all pages have been completed, the process returns from S73.

As described above, according to the second embodiment, the facsimile apparatus procedure in which the facsimile apparatus on the receiving side declares the color system before the communication and the transmitting side transmits the data of the color system corresponding thereto is described. By providing,
By omitting the RGB / YMC (or YCrCb) conversion processing in the facsimile machine on the receiving side, it is possible to obtain the effect of speeding up / simplifying the print / display processing on the receiving side.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0027]

As described above, according to the present invention,
It is possible to reduce the loss time from the reception of the receiver to the end of the recording. Further, there is an effect that the print / display processing on the receiving side can be speeded up / simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a facsimile machine according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a communication procedure of the first embodiment.

FIG. 3 is a diagram illustrating the timing of color image communication according to the first embodiment.

FIG. 4 is a diagram illustrating a general color image communication timing.

FIG. 5 is a flowchart illustrating an operation according to the first embodiment.

FIG. 6 is a flowchart illustrating a receiving operation according to the first embodiment.

FIG. 7 is a flowchart illustrating an image transmission operation according to the first embodiment.

FIG. 8 is a flowchart illustrating an image transmission operation according to the first embodiment.

FIG. 9 is a flowchart illustrating an image transmission operation according to the first embodiment.

FIG. 10 is a flowchart illustrating a transmission process according to the second embodiment.

FIG. 11 is a flowchart illustrating a general reception / recording operation.

FIG. 12 is a flowchart illustrating a receiving / recording operation according to the second embodiment.

[Explanation of symbols]

 1 Crystal Oscillator 2 CPU 3 ROM 4 RAM 5 Gate Array 6 Gate Array 7 Gate Array 9 Hierarchical Encoding / Decoding LSI 10 Recording Head 11 CCD 12 Read Motor 13 Recording Motor 14 Modem 15 NCU 16 Sensor 17 Motor IC 18 Speaker Circuit 19 speaker 23 line 24 telephone

Claims (4)

[Claims] 1. In a facsimile system for hierarchically transmitting / receiving color image data, declaring means for declaring a recording order according to a predetermined color system from the receiving side to the transmitting side, and the receiving side from the transmitting side. And a transmitting unit for transmitting the color image data according to the recording order declared by the declaring unit. 2. The facsimile system according to claim 1, wherein the declaring means declares the recording order before transmitting / receiving the color image data hierarchically. 3. In a facsimile system for hierarchically transmitting / receiving color image data, declaring means for declaring a color system from the receiving side to the transmitting side, and the declaring from the transmitting side to the receiving side. And a transmitting unit for transmitting color image data according to the color system declared by the unit. 4. The facsimile system according to claim 3, wherein the declaring means declares the color system before transmitting / receiving the color image data hierarchically.