JPH0427546A - Monitor display device for electrophotosetter - Google Patents

Abstract

PURPOSE:To achieve a speed-up of reduction of a character data by arranging a reduction register into which an original data is written as stored in a digitization memory, a blank print memory into which a reduction data is written as outputted from the reduction register and a display device to display and monitor a blank character reduced in the blank print memory. CONSTITUTION:The contents of a digitization memory 21 as a place where a data taken in from an imaging section 19 is stored temporarily are written into a buffer memory 26 and blank print memory 30 with a display control section 25 according to purposes. In a reduction display, when a data is written into a blank print memory 30, a display control section 25 is worked to write an original data of the digitization memory 21 into a reduction register 101 and a data reduced sideways is obtained. The data reduced sideways is written into the blank print memory 30 and a blank character reduced is displayed and monitored on a display device 32. This enables generation of a reduction data efficiently at a high speed.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a monitor display device in a phototypesetting apparatus equipped with a monitor display means.

[Conventional technology]

FIG. 4 is a block diagram showing the configuration of a conventional phototypesetting apparatus disclosed in, for example, Japanese Patent Application Laid-Open No. 60-124248. In the figure, 1 is a light source of the phototypesetting apparatus, and 2 is a condensing lens. , 3 is a dial, 4 is a main lens that converts the magnification of the characters on the dial 3 to a desired size, 5 is a character transformation lens, 6 is an image rotation prism, and 7 is an image of the characters from the dial 3 The half mirror 8 for reflecting the light to the section 19 is a prism or mirror for changing the optical path, and 9 is a travel lens system that moves the lens 10 and the prism or mirror 11.
12 is a photosensitive material drum that rotates around which the photosensitive material 13 is wound; 14;
is a drive source consisting of a pulse motor etc. for X-axis feeding, 1
5 is a drive source consisting of a pulse motor etc. for X-axis feeding;
16 is a feed control unit that controls the drive source, 17 is a current position counter, 18 is a calculation unit, 19 is an imaging unit such as COD or vidicon, 20 is a serial/parallel (S/P) data conversion unit, and 21 is a digitizing unit. 22 is a control unit, 23 is an input unit for making various settings, 24 is a data storage unit, 25 is a display control unit, 26 is a buffer memory for storing printed characters, and 27 is for storing unprinted data. 28 is a refresh memory for display; 29 is a sizing control section; 30 is an empty print memory; 3
1 is a parallel/serial (P/S) data converter, 32
is a display device such as a CRT. Next, the operation will be explained. First, commands for various formatting conditions are sent from the input section 23 to the control section 22, and the transferred data is stored in the data storage section 24. On the other hand, the control unit 2
2 selects the main lens 4, the deformable lens 5, and the image rotation prism 6 based on an input command. The character images passing through each of these lenses are finally projected onto the photosensitive material 13 and printed. The typesetting work is then performed while controlling the control section 22, calculation section 18, feed control section 16, current position counter 17, drive source 14 for X-axis feed, and drive source 15 for X-axis feed. In addition, the transcribed characters are sent to the S/P from the imaging unit 19 as necessary.
After being taken into the data conversion unit 20 and converted by the S/P data conversion unit 20, the Digiquiz memory 21
is stored once. Furthermore, the data read from the digitizing memory 21 is written into a buffer memory 26 for storing printed characters and a blank print memory 30 for storing blank print status, depending on the purpose. The image memory 27 is written with data that is not printed, such as guidelines that serve as a guide for typesetting. Therefore, printed characters are written from the buffer memory 26, unprinted characters and data are written from the blank print memory 30, further from the image memory 27 to the refresh memory 28, and are displayed on the display device 32 for monitoring. For example, if you want to check the entire layout during the typesetting work by using the display device 32 as a monitor during the typesetting work, you can reduce the size of the entire layout and display it on the display device 32, and also check the layout between each typed character. If you want to make detailed adjustments, enlarge the display and monitor it. The display magnification is changed quite frequently, and when these magnifications are processed by the buffer memory 26 or image memory 27, the contents of the memory are thinned out and reduced by hardware, or the contents are enlarged and displayed redundantly. . Further, the blank print memory 30 is connected to the display device 32.
The image is rewritten by software according to the display magnification to match the display dot density. Therefore, when writing the contents of the digitizing memory 21 taken in from the imaging section 19 to the blank print memory 30 and displaying it on the display device 32, the display control section 25 writes the contents of the digitizing memory 21 according to the display magnification. After enlarging or reducing the image, the image is written into the blank print memory 30. in general,
These processes are performed by software processing of the display control unit 25. Furthermore, data in the vertical direction can be reduced by arithmetic operations between registers of the processor inside the display control unit 25, but data in the horizontal direction can be reduced by arithmetic operations between adjacent bits within the same byte or word. −
In the instruction system of a typical processor, it takes more time to process arithmetic operations between adjacent bits.

[Problem B that the invention attempts to solve]

The monitor display device in a conventional phototypesetting device is configured as described above, so when you try to change the display magnification to reduce the display size and monitor it, the data captured from the imaging unit to the digitized memory is displayed horizontally in order to display blank lines. There is a problem in that it is necessary to write data into the blank print memory after directional reduction, and it takes a lot of time to process the data reduction. This invention has been made to solve the above-mentioned problems, and provides a monitor device in a phototypesetting device that can reduce character data taken from an imaging unit at high speed for displaying blank lines. The purpose is to

[Means to solve the problem]

The monitor device in the phototypesetting apparatus according to the present invention includes a reduction register into which the original data stored in the digitizing memory is written under the control of the display control section during reduction display, and a blank print register into which the reduction data output from the reduction register is written. It is constructed by comprising a memory and a display device that displays and monitors the reduced blank line characters in the blank print memory.

[Effect]

In the reduction register in this invention, when the display control section writes reduced data from the digitizing memory to the blank print memory, the display control section first writes the original data stored in the digitizing memory and reduces the data. Make it return data.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, the same parts as in FIG. 4 are indicated by the same reference numerals. In FIG. Shown below. In the figure, 102 is an OR array, and 103 is an output register. Next, the operation will be explained. First, the contents of the digitizing memory 21, which is a temporary storage location for data captured from the imaging section 19, are written into the buffer memory 26 or the blank print memory 30 by the display control section 25 depending on the purpose. When writing data into the blank print memory 30 for reduced display, the display control unit 25 writes the original data of the digitizing memory 21 into the reduction register 101 to obtain horizontally reduced data. By writing this horizontally reduced data into the blank print memory 30, the reduced blank line characters are displayed and monitored on the display device 32. In FIG. 2, the width of the data bus from the display control unit 25 is 16
A reduction register 10 that has the function of reducing the width to 1/2 in the horizontal direction by calculating the logical sum of bits between adjacent data.
1 is shown. That is, data obtained by converting the signal from the imaging section 19 into parallel and serial data is stored in the digitizing memory 21. The display control unit 25 controls the digitizing memory 2
When reducing the contents of 1 to 1/2, the contents of the -degree digitizing memory 21 are read into the reduction register 101. The bits of adjacent data of the read data are ORed by the OR array 102, and the original 16-bit width data is converted into 8-bit data and stored in the output register 103. The display control unit 25 reads the contents of the output register 103 to obtain data reduced in half in the horizontal direction. The reduced data obtained in this way is stored in the empty print memory 3.
By writing to 0, blank line characters during reduced display can be monitored. Further, when the horizontal direction is reduced to 1/4, data reduced to 1/4 is obtained by further performing the above-described reduction processing on the data reduced to 1/2. In the above embodiment, an example is shown in which a reduction register is provided to obtain data with a bit width that is one-half of the read data, but two output registers are provided, and the data bus width controlled by the display control unit 25 is It is also possible to adopt a configuration in which each 8-bit width is effectively used. An example of this is shown in FIG. That is, the display control section 2
5 reads the imaging data stored in the digitizing memory 21, and the upper output register 104 and the lower output register 1 are respectively connected to the output of the OR array 102.
05 respectively. The upper output register 104 and the lower output register 105 in the reduction register 101 are distinguished by changing the write address. Upper output register 104 and lower output register 10
5 contains data obtained by ORing bits between adjacent data by the OR array 102. The display control unit 25 reads the reduction register 101 after writing to the reduction register 101 twice, that is, writing to the upper output register 104 and the lower output register 105. In other words, at this time,
By reading the two output registers simultaneously, 16-bit wide reduced data can be obtained. By controlling the display controller 25 in this manner, the data bus width can be used effectively, and reduced data can be generated quickly and efficiently. Further, in the above embodiment, an example was explained in which an OR array is provided inside the reduction register to obtain 1/2 reduction data, but reduction may be performed using other logical operations and the same effect as in the above embodiment can be obtained. play.

【Effect of the invention】

As described above, according to the present invention, a reduction register is provided which operates under the control of the display control section, and when data is written from the Digiquiz memory to the blank print memory, the original data in the digitize memory is first written and reduced. Since the reduced data is output as is, reduced data can be generated at high speed with a simple circuit configuration.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a phototypesetting apparatus according to an embodiment of the present invention, FIG. 2 is a block diagram showing the circuit configuration of the reduction register in FIG. 1, and FIG. 3 is another embodiment of the present invention. FIG. 4 is a block diagram showing the structure of a conventional phototypesetting apparatus. In the figure, 19 is an imaging unit, 21 is a digitizing memory, 25 is a display control unit, 30 is a blank print memory, 32 is a display device, 101 is a reduction register, 102 is an OR array, 1
03 is an output register. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Dial 13: Outer material 19/Pictured part diagram

Claims (1)

[Claims] Characters, symbols, etc. that are typed from the dial and printed on the photosensitive material,
In a monitor display device of a phototypesetting device, which writes data to a digitized memory via various optical systems or an image pickup unit and displays it on a monitor while changing the display magnification depending on the purpose, when reducing the display, the original data stored in the digitized memory is A reduction register that is written under the control of a display control unit, a blank print memory that writes the reduced data output by the reduction register, and a display device that displays and monitors the reduced blank print characters in the blank print memory. A monitor display device in a phototypesetting device characterized by: