JPH0559632B2 - - Google Patents

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to an image editing device, and particularly to an image editing device that can edit images at high speed with a simple circuit configuration. (Prior Art) As one of image editing, for example, as shown in FIG.
There is an image editing method in which the B information is deleted from the image, and the A information and C information are packed together and printed out as shown in FIG. Conventionally, when performing the above image editing using a copying machine that photoelectrically converts original information and prints it out with a xerography type printer,
The scanner side scans the photosensitive drum as usual with a laser beam modulated by the document information, and stops rotating the photosensitive drum when the laser modulated by the document information B starts scanning. It was done mechanically. Another method is to write the information of the document 31 into the page memory, delete the B information using software, output the C information next to the A information, and output it to the printer. In addition, the publication related to the above-mentioned prior art includes
There is a publication No. 59-62885. (Problems to be Solved by the Invention) The above-mentioned prior art had the following problems. In the mechanical method of the prior art, the rotation of the photosensitive drum is stopped when the B information arrives, and the rotation of the photosensitive drum is resumed when the B information ends and the C information begins to modulate the laser beam. This requires control, and there is a problem in that it is complicated to determine the timing of rotation and stop of the photosensitive drum, and how to synchronize it. Furthermore, the method of processing using software has a problem in that the operating speed is slow. The present invention has been made to solve the above-mentioned problems. (Means and operations for solving the problem) In order to solve the above problem, the present invention provides an image editing device that deletes a part of input original image data obtained by sampling. a means for inputting data representing deletion; a first storage means for storing the data; and a method for reading out the data stored in the first storage means in synchronization with line sync, with the period of the line sync being a unit. a means for converting the input original image data into a signal; a means for forming a write address based on the converted signal; and a second storage means for storing the input original image data in the write address; The feature is that a part of the data is deleted and the areas before and after the deleted part are packed together. (Example) The present invention will be explained below using examples. FIG. 4 is an explanatory diagram showing an example of data input means for editing. In the figure, 30 is a platen glass of the image editing device, and a document 3 is placed on the platen glass 30.
1 is placed. Reference numerals 32a and 32b are editing area specifying means for determining the width to be deleted or the width to be printed of the document, and are configured to be slidable by a guide 33. The editing area specifying means 3
2a and 32b are composed of, for example, potentiometers, and their position information is transmitted to the CPU using electrical signals.
Sent to 2. A delete key 34 and/or a print key 35 provided on the panel of the image editing device are connected to the CPU 2, and the editing area specifying means 3
It is possible to select whether to delete the area specified by 2a and 32b or to print only that area. As shown in FIG. 4, a document 31 is placed on a platen glass 30, and an editing area specifying means 3
After matching 2a and 32b with the B information, press the delete key 3
4 is turned on, the CPU 2 recognizes that a command to delete the B information has been issued. If it is desired to delete multiple locations in one document, this can be done by moving the editing area specifying means to another original bridge location to be deleted and turning on the delete key 34. When the deletion area B of the document 30 is set in this way, the CPU 2 outputs a switching signal, a write signal, an address, and data to the selector 3 and memory 4, as shown in FIG. . Here, FIG. 1 is a block diagram of one embodiment of the present invention. Further, FIG. 2 shows a time chart of the main parts of the signals shown in FIG. Note that the symbols in FIG. 2 and those in FIG. 1 are written in correspondence. In the figure, reference numeral 1 indicates an edit data input means as shown in FIG. send a signal. This allows selector 3 to
Select the address output from 2. Further, a write enable signal is sent to the memory 4, and the memory 4 becomes in a writable state. Subsequently, based on the deletion area input from the edit data input means 1, the CPU 2 outputs addresses and data as shown in Table 1, for example.

[Table] Here, "1" in data (D) in Table 1 is "valid"
"0" indicates "deletion". The above address is sent to the memory 4 through the selector 3, and the data is transferred to the memory 4, so the address of the memory 4..., An-2,
The data is stored in An-1, An, An+1, An+2, . . . . With the above steps, the setting of the deletion section in the sub-scanning direction of the document is completed. Next, the operation when printing out the edited image information set as described above will be explained. When the operator performs an operation to start printing from the panel, the CPU 2 determines this, switches the selector 3 to the counter 5 side, and sets the memory 4 to read mode. The counter 5 receives a page synchronization signal sent from a document reading device (not shown), etc.
Set by PS1 and counts line sync LS1. Now, the line sink as shown in Figure 2
If LS1 is input to the counter 5, the counter 5 counts this and sends the counted value to the selector 3.
It is sent to memory 4 through . The design values are read addresses A1, A2, A3, A4,
..., so the addresses are An-2, An-
1, An, An+1, An+2, etc., the data c in the figure is sequentially read out from the memory 4, and the D flip-flop (hereinafter referred to as D-FF) is read out from the memory 4.
Input to the D input terminal of 6. As the clock for the D-FF6, a clock obtained by inverting the line sync LS1 is input, and at the rising edge of the clock, the data c input to the D input terminal is latched, so the D-FF6 receives the reference for deletion. A signal d (see FIG. 2) is output. This signal d is input to an enable terminal EN of a write address generating means composed of a counter 7 and the like. If the page sync PS1, line sync LS1, and sampling clock SC generated by a document reading device (not shown) are input to the selector 10 while the select signal selects the writing side, these signals will be selected. Through the selector 10, the page sync PS1 outputs the sampling clock to the reset terminal RST of the counter 7 and the timing generator 9, and the line sync LS1 outputs the sampling clock to the clock terminal CK of the counter 7, the reset terminal RST of the counter 8, and the timing generator 9. SC is counter 8
clock terminal CK, and is sent to the timing generator 9. When page sync PS1 inputs counter 7,
During the period of the H (high) level, the counter 8 is enabled to count.
Level duration counters are enabled. Further, the timing generator 9 sends a write enable signal WR to the page memory 11 to put the page memory 11 into a write mode. Now, as shown in FIG. 3, when the page sync PS1, line sync LS1 and sampling clock SC are input, the counter 7 counts the line sync LS1 and the page memory 1
Specify the address of 1 in the sub-scanning direction. Further, the counter 8 counts the sampling clock SC and specifies the address of the page memory 11 in the main scanning direction. Since the original image data Di is input to the page memory 11 in synchronization with the sampling clock SC, it is stored at the address designated by the counters 7 and 8. Now, when the deletion reference signal d input to the enable terminal of the counter 7 becomes L (low) level,
The counter 7 stops counting the line sync LS1. As a result, since the address in the sub-scanning direction does not change, the original image data Di is overwritten on the same address in the pad memory 11. For example, using the example in FIG. 3, the sub-scanning address A2 specifies the same address for 4 lines, so 1 line of data L2, L3, L4
and L5 are overwritten, and as a result, one line of data L5 is stored in the sub-scanning address A2. When the deletion reference signal d changes to H level, the counter 7 starts counting again. Therefore, the counter 7 is set to 1 every time the line sync LS1 is input.
The count is increased, and the addresses of the page memory 11 in the sub-scanning direction are incremented as A3, A4, A5, . . . . As a result, the data of the 6th, 7th, 8th, .
3, A4, A5, . . . In this way, according to this embodiment, the addresses A1, A2, A3, A4, A5,
..., data L1, L5, L6, L7, L8 will be stored. Next, the operation of reading data stored in the page memory 11 will be explained. When page sync PS1 falls, the falling point is detected and a read period begins. The selector 10 uses a select signal to select a page sync PS2 and a line sync LS generated by a printer (not shown).
2 and select the video clock VCK. Since the timing generator 9 outputs the read enable signal RD, the page memory 11 enters the read mode. Now, at the timing shown in FIG. 3, when one line sync LS2 is input to the clock terminal of the counter 7 and the reset terminal RST of the counter 8, the counter 7 counts up by 1, and the counter 8 increases the count of the line sync LS2. H level period,
Count the video clock VCK. For this reason, the page memory 11 stores addresses A1, A2, A3, A4, . . . in the sub-scanning direction according to the output of the counter 7.
is specified, and the address in the main scanning direction is specified by the output of the counter 8. At the time of reading, the addresses of the page memory 11 in the sub-scanning direction are specified continuously without interruption, so that the data stored in the page memory 11 is sequentially and continuously read out. Therefore, the output data Do of the page memory 11 is the data L1, L5, L6, L, as shown in FIG.
7..., data L2 to L4 are deleted, and data L5 is printed consecutively after data L1, making it possible to make a copy. To explain using the example shown in FIGS. 5a and 5b, the A information and C information of the document are read out continuously from the page memory 11, but the B information is never read out. Therefore, when the data read from the page memory 11 is sent to the printer and printed out,
B information is deleted, and C continues after A information.
Copies with printed information can be made. At this time, if the start of main scanning of the scanner of the printer is made to coincide with the start of main scanning of the photosensitive drum of the printer, copying as shown in FIG. 5b can be performed. On the other hand, if the start of the main scan of the photosensitive drum is delayed by x with respect to the start of main scan of the scanner, a copy with a white background of length x from the leading edge of the paper as shown in FIG. 6 will be made. I can do it. Although the above embodiment is an example of deleting several lines in the sub-scanning direction, a person skilled in the art can easily imagine deleting several words in the main-scanning direction and packing the deleted members, and the present invention is applicable to the present invention. within range. Note that printers applicable to the present invention include:
In addition to the xerographic type in which a drum is irradiated with light to create an electrostatic latent image and this is developed with toner, a thermal transfer type or an inkjet type can be used. Furthermore, in the above embodiment,
The line sync and sampling clock obtained from the image reading device and the line sync and video clock obtained from the printer were explained as being independent from each other, but the line sync and sampling clock obtained from the image reading device are It may be used as the line sync and video clock, or conversely, the line sync and video clock obtained from the printer may be used as the line sync and sampling clock of the image reading device. (Effects of the Invention) As described above, the present invention has the following effects. (1) The system configuration is simplified because it is possible to partially delete document information and fill in the parts before and after it without temporarily stopping the rotation of the printer's photosensitive drum. (2) Editing can be done by complete hardware processing rather than software processing, so processing time is short. (3) Also, since it is not software processing, real-time processing is possible.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG.
The figure is a time chart of the main part of the signal, FIG. 3 is a time chart of the main part of the signal for explaining the operation of this embodiment, FIG. 4 is a conceptual diagram showing an example of editing area specifying means, and FIG. 6 and 6 are diagrams each showing an example of a copy edited according to the present invention. 1... Edit data input means, 3... Selector,
4...Memory, 5...Counter, 7, 8...Counter, 10...Selector, 11...Page memory.

Claims (1)

[Scope of Claims] 1. An image editing device for deleting a part of input original image data obtained by sampling, comprising means for inputting data indicating validity and deletion, and a first memory for storing the data. means for reading the data stored in the first storage means in synchronization with line sync and converting the data into a signal whose unit is the period of the line sync; and determining a write address based on the converted signal. and a second means for storing the input original image data at the write address.
1. An image editing apparatus comprising: a storage means, wherein a part of the input original image data is deleted, and the parts before and after the deleted part are packed together. 2. The image editing apparatus according to claim 1, wherein the second storage means is a page memory.