JPH0195049A - Photo-typesetting machine - Google Patents

Abstract

PURPOSE:To effect circular typesetting of front matter at a high precision without requiring any complicated operation by providing a host controller with a correction circuit for turning to the center, which corrects the rotation angle and position of an image so that a real pattern of the front matter may always turn to the center of the circle. CONSTITUTION:When an operator sets fixedly a character board 37, a host controller 32A finds the width W of the front matter 2 from the fix set position of the character board 37 for selection of the front matter, and a correction circuit 52 for turning to the center find a correction angle beta (counter clockwise correction by beta degree) 12 for turning to the center, and corrected positions xs, ys 11. A pulse motor controller 33 turns an image turning prism 48 according to the instruction of the host controller 32A so that the character may turn by beta degree, simultaneously a pulse motor 46 and a pulse motor for turning are rotated to move the typesetting position to the correction position xs, ys. Thus, the center line of the front matter may be agreed with the circle center 6.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention provides a method for photosetting images such as letters on the circumference of a magazine drum so that even the front matter is automatically oriented toward the center of the circle. This invention relates to a phototypesetting machine that allows users to perform

[Conventional technology]

FIG. 7 is a block diagram showing a conventional phototypesetting machine as disclosed in Japanese Patent Application No. 60-20471. In the figure, 31 is a command input section with an input key, and 32 is a command input section. A host controller 33 calculates control data for phototypesetting according to commands from the host controller 31, and a pulse motor 34 .
A pulse motor control section 35 controls the rotation of 46.degree. 47, and 35 is a magazine drum having a photoreceptor 36 attached to its circumferential surface, which is driven by a pulse motor 34 serving as drum rotation means. 37 is a dial that transmits the light from the light source 38 and projects an image such as letters, 39 is the ear opening, 40.42 is a lens, and 48 is a dial that projects the image of the transmitted light at an arbitrary angle from 0 to 360". An image rotating prism is driven by a pulse motor 47 as an image rotating means. 43 is a prism that reflects the rotated image, 44 is a shutter that controls on/off the projection of the reflected image, and 45 is phototypesetting means. This is a movable lens as a movement control means, which moves the photosensitive point to the photosensitive object 3 using a pulse motor 46 as a movement control means.
6 to a desired position. Here, the dial 37, the ear opening 39, the lenses 40, 42, the image rotating prism 48, the prism 43, the shutter 44, and the movable lens 45 are arranged on the same optical path.

Next, the operation will be explained. As one of the phototypesetting methods,
As shown in Figures 11 and 12, the letters are lined up in the circumferential direction, and the center of the letters! There is a method of photosetting (circular typesetting) while controlling the inclination of the characters (character rotation) so that 5 faces the center of the circle 6.

The phototypesetting machine is designed to automatically rotate the characters so that they face the center 6 of the circle at any position in this circular set. This eliminates the trouble of having to orient the characters toward the characters, and at the same time improves the accuracy of the inclination of the center line 5 of the five characters.

As shown in FIG. 8, these functions are such that the host controller 32 stores the circle center 6 instructed by the command input section 31, and receives movement data from the pulse motor control section 33, instructions from the command input section 31, etc. Therefore, at the same time the host controller 32 knows the current position 7 with respect to the circle center 6, it calculates the rotation angle α(8) of one character, and the pulse motor controller 3
Issue a rotation command to 3. The pulse motor control section 33 inputs a control signal to the pulse motor 47 to rotate the image rotation prism 48 so that the characters are rotated by α degree.

The thus rotated images such as characters are projected onto the photosensitive material 36 by the movable lens 45 via the prism 43 and the shutter 44, and phototypesetting is performed.

On the other hand, the character pattern in the dial 37 of the phototypesetting machine usually has character width size Qw (4), as shown in FIGS. , there is a front matter character 2 whose character pattern is offset to the left of the character width size Qw (4).

With conventional phototypesetting machines, the aforementioned front matter 2
However, in the same way as full-width character 1, the character is rotated by the rotation angle α of full-width character 1 from the current position 7 of full-width character 1, and
As shown in the figure and FIG. 12, it is made to face the center 6 of the circle.

[Problem that the invention seeks to solve]

Conventional phototypesetting machines are configured as described above, so
When composing the front matter 2 in a circle, the front matter 2 does not point exactly toward the center 6 of the circle. The center line of the character 2 must be rotated for correction to point toward the center 6 of the circle, which not only makes the operation of correcting the center direction of the front matter complicated.

Since the operator performs the process himself, there are problems such as a lack of accuracy.

This invention was made to solve the above-mentioned problems, and when composing front matter characters in a circle, it is possible to automatically and easily direct the center line of the front matter characters toward the center of the circle. To provide a phototypesetting machine capable of correcting the central inclination of front matter characters and the position of characters.

[Means for solving problems]

In the phototypesetting machine according to the present invention, when phototypesetting front matter characters in a circumferential type, the host controller is provided with a front matter center co-position correction circuit, which adjusts the width of the front matter characters and the width of the front matter characters as full-width characters. Based on the current position, the center one character width size of the circle, and the character height size, the center plane correction angle and correction position are calculated and output, and the character is rotated by the center angle correction angle and the phototypesetting position is moved by the correction position. It is composed of

[Effect]

In this invention, the front matter center correction angle and correction position obtained by the processing steps of the front matter center self-position correction circuit in the host controller are notified to the pulse motor control section, and this pulse motor control section The image rotation means is operated so as to correct and rotate the front matter by the angular position correction angle, and the pulse motor serving as the movement control means and the drum rotation means is operated so that the phototypesetting position is moved to the correction position. Make it.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 32A is a host controller, which corresponds to the conventional host controller 32. In FIG. This host controller 32A has a command input section 3.
Character width size Qw and character height size Qh input in step 1
, a memory circuit 51 that stores each data of the position R1 angle A from the circle center 6, and calculates the rotation angle of the character so that the entire character faces the circle center, as well as the width of the front matter character 2, the front matter character 2, etc. Front matter 2 to calculate the correction angle and correction position of the central plane position of
A center direction position correction circuit 52 is provided.

Note that other components that are the same as those shown in FIG. 7 are designated by the same reference numerals, and redundant explanation thereof will be omitted.

Figure 2 shows the parameters necessary for correcting the central position of front matter 2. In Figure 1, 13 and 14 are parameters that indicate the current position of front matter 2 before center position correction, and each of them is a radius of the circumferential set. R and angle A, 18 are the character width W (9
) is 1/2, 172 front matter character width W/2, this front matter character 2
The character width W(9) can be recognized by the host controller 32 by detecting the fixed set position of the dial 37. 4 and 3 are the full-width character width size Qw and 1, respectively.
With the character height size Qh, the host
The controller 32 is instructed to do so.

15 is the actual center position of front matter 2 after correction X
'/x, 16 is an imaginary line indicating the position of front matter 2 before correction, and 17 is a solid line indicating the position after correction.

11 is the front matter character correction position XS+yS found this time, and the typesetting position is moved from the full-width character position 7. Reference numeral 12 is the center direction correction angle β of the front matter character 2 that is currently determined, and the correction rotation is performed counterclockwise by β degrees with respect to the center direction tilt angle α for the full-width character 1.

Next, the operation of this embodiment will be explained with reference to the flowchart of FIG. 3, focusing on the correction of the central position of the front matter 2. First, the host controller 32A determines the character width size Qw, character height size Qh, and position R (13 ), A'(14
) and store it in the memory circuit 51 (step 5
T20).

At the same time, in the case of full-width character 1, the rotation angle α (8) of the character is calculated so that each character faces the center of the circle, and the character is tilted by α degrees. As a result, in the case of full-width character 1, the character faces toward the center 6 of the circle as shown in FIG. 8 (step ST21).

Next, when the operator sets the dial 37 in a fixed position, the host controller 32A detects the fixed set position and thereby determines whether front matter 2 has been selected (step 5T22).

If the front matter character 2 is selected, the width W of the front matter character 2 is determined from the fixed set position on the dial 37 (step 5T2).
3). Next, using these parameters as input, the center direction position correction circuit 52 calculates the following equation, and calculates the center direction correction angle β of the front matter 2 (corrected by β degrees counterclockwise) 12 and the correction position XSw! s (11), respectively (step 5T24).

xg=xx+(1w*5inA'ys=yx+j!w-cogA' Here, A'=A-δ Qw=(Qv-W)/2 xX=R11cO8A', yx=-R*5inA'.

Next, the host controller 32A issues a command to the pulse motor control unit 33 to perform a correction rotation by the calculated correction angle β. At the same time, the corrected position x s g y from the current position
It also issues a command to move to g. In accordance with this command, the pulse motor control unit 33 rotates the image rotation prism 48 so that the character rotates by β degrees (step 5T25), and simultaneously rotates the pulse motor 46 and rotation pulse motor 34 to set the correction position XS* yS The phototypesetting position is moved to (step 5T26).

By doing so, the center line of the front matter 2 can be aligned with the circle center 6, as shown in FIG.

In the above embodiment, only the front matter character 2 is subjected to center direction position correction, but the back matter character 40 as shown in FIG.
Front matter 4 rotated by 180 degrees as shown in Figure 6.
1, the center quotient correction angle β (corrected by β degrees clockwise) and the correction position X5eVS are obtained in the same way by performing calculations according to the formula shown below in the center self-position correction circuit 52. be able to.

x s= XX-42w ll5inA'ys")'x
-ffwllcosA' Here, xX=R#cosA', 3/X knee R-sinA'.

〔Effect of the invention〕

As described above, according to the present invention, in circular phototypesetting, the inclination and position of characters are corrected (center orientation Since the configuration is configured to automatically perform position correction), the operator can perform circumferential phototypesetting of front matter characters with high precision without having to perform complicated operations.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a phototypesetting machine according to an embodiment of the present invention, Fig. 2 is an explanatory diagram of parameters used to correct the central position of front matter characters, and Fig. 3 shows the processing procedure for correcting the central position. FIG. 4 is an explanatory diagram of the front matter after correcting its position in the central direction; FIG. 5 is an explanatory diagram of the back matter to which this invention can be applied; FIG. 6 is a diagram of the front matter rotated by 180 degrees. Explanatory diagrams: Figure 7 is a configuration diagram of a conventional phototypesetting machine; Figure 8 is an explanatory diagram showing the diurnal direction angle of full-width characters; Figure 9 is an explanatory diagram of full-width characters; Figure 10 is an illustration of front matter characters. FIG. 11 is an explanatory diagram of full-width characters in circular typesetting, and FIG. 12 is an explanatory diagram of front matter characters in circular typesetting. 32A is a host controller, 34 is a drum rotation means, 35 is a magazine drum, and 36 is a photosensitive material. 45 is phototypesetting means, 46 is movement control means, 47 is image rotation means, and 52 is a center self-position correction circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] a photosetting means for photosetting an image such as a character on the photosensitive material by turning on/off a shutter; a movement control means for moving the photosensitive point of the photosetting means to an arbitrary position on the photosensitive material; A photograph comprising an image rotation means for rotating an image to be phototypeset, a drum rotation means for rotating a magazine drum on which the photosensitive material is mounted, and a host controller for controlling the operations of the phototypesetting means, the image rotation means, and the drum rotation means. In the typesetting machine, the host controller is provided with a center direction position correction circuit for front matter characters that corrects the rotation angle and position of the image so that the actual pattern of front matter characters always faces the center of the circle. Typesetting machine.