JPS6110373A - Electronic telop generating device - Google Patents

Abstract

PURPOSE:To reduce trouble required for manufacture of ''Telop'' and to speed up the processing by allowing the monitor operation based on video to record a character or picture input signal to a semiconductor memory sequentially. CONSTITUTION:A colored character signal from a digital fadar 12 is fed to a cross point switch 13, where the signal is selected and inputted to a picture memory 14. As the picture memory 14, a memory corresponding to the television pattern and using a semiconductor is used. A microcomputer 11 controls a write area selection circuit 9 to move automatically the next write area every time one character is written in the picture memory 14, then a write command circuit 10 is activated to display the input character and the next input character adjacently on a monitor.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for producing telop images used in television broadcasting without using photosensitive photographic paper.

(Prior Art) Conventionally, characters and images used in television broadcasting have been obtained by photosetting on photosensitive photographic paper called telop using a phototypesetting machine. Load the photographic paper, check the printing position on the display board, print on the photographic paper with a braille device, adjust the lens, adjust the dial, run blank, etc., and insert the characters between the light source and the lens. Next, the characters and images on the board are exposed to photographic paper. After processing the photographic paper, the printed negative and card telop paper are overlapped and printed and developed using a printer light source to obtain a telop card. In the case of the roll telop, the telop-2 prowl was printed using substantially the same method.

However, this method using a conventional phototypesetting machine requires many processes such as printing, development, stabilization, and drying, so it tends to be mechanically complicated and has the disadvantage of being complicated to operate. However, there is a problem in that it is not possible to partially modify a subtitle image once it has been created.

(Object of the Invention) The purpose of the present invention is to provide an electronic caption production device that eliminates the drawbacks of the conventional caption production device as described above, reduces the labor required for production, and is speeded up. That is.

(Structure of the Invention) In order to achieve the following objects, the present invention includes: an AD converter that encodes a character or image signal; a first semiconductor image memory that records the AD-converted digital signal; A digital fader in which a color signal is faded by the output of the first semiconductor image memory, and a digital signal of the character or image.

a cross-point switch for inputting the first semiconductor image memory output, a digital fading signal, and a color signal to select an input signal to the second semiconductor image memory; and a fortune telling to the second semiconductor image memory. a video-based monitor comprising: a control device for issuing write area selection and write command signals; a mixer for receiving the outputs of the cross-point switch and the second semiconductor image memory; and a DA converter for converting the output of the mixer into analog. The main object of the present invention is to provide an electronic caption production device which is characterized by sequentially recording character or image input signals into a semiconductor memory through operations.

(Example) Hereinafter, the present invention will be described in detail based on the drawings. FIG. 1 is a block diagram showing the configuration of the present invention, in which 1 indicates an original plate on which target characters or images are drawn, and original plate 1 is:
It may be a dial of a phototypesetting machine, or other printed characters or photographs, etc. 2 is an optical lens, and 3 is an imaging camera. The image signal obtained by this image pickup camera 3 is sent to the AD converter 5& by a cable 4, and then input to the first dual image memory 6. 7 is a read address movement control circuit for the 1-image memory 6, 8 is a color 4A generation circuit, 9 is a write area selection circuit, and 10 is a write command circuit. 9. The drive state of the write command circuit 10 is controlled by the microcomputer 11. 12 is a digital fader, 13 is a cross point switch,
14 is a second image memory, 15 and 16 are AND gates, 17 is a mixer, and 18 is a DA converter.The present invention will be described in detail below. The image signal obtained by the optical lens 2 and the imaging camera 3 is encoded by the AD converter 5 and then recorded in the first image memory 6. The AD converter 5 is capable of polarity reversal, so that the subject is
It is now possible to handle either negative or positive images.
I'm coming. The outputs of the first image memory 6, the color signal generation circuit 8 and the AD converter 5, and the colored character signal from the digital fader 12 in which the color signal is faded by the output of the image memory 6 are applied to the cross point switch 13. The signal selected by the cross point switch 13 is the second
is input into the image memory 14 of.

On the other hand, the microcomputer 1 controls the writing area selection circuit 9 so that each time one character is written into the second image memory 14, the writing area is automatically moved to the next writing area. make it work. The signal selected by the crosspoint switch 13 is
It is applied to the second image memory 14 and also to the mixer 17 via the ant gate 16. The output of this mixer 17 is converted into an analog signal by a DA converter 18 to obtain a normal video encoded output 19. Therefore,
When the video signal output 19 is connected to a television monitor, the input image is moved to an arbitrary position on the television screen and the size, arrangement, color scheme, etc. of each character are checked, and then the write command circuit 10 is activated. Writing to the second image memory 14 is performed. As mentioned above, the second image memory 14
- Each time a character is written, the drive is controlled so that it automatically moves to the next writing area, so on the TV monitor, the character signal written to the second image memory 14 and the next input character are adjacent to each other. When a dial is used as the original plate 1, the caption characters are created one after another on the screen by simply moving the dial.
and can be recorded.

The image memory 6 and the image memory 4 can be easily recorded and can be used repeatedly by using a semiconductor memory corresponding to a television screen.

Therefore, if the telop produced as described above is recorded in a separately prepared telop filing device or still image storage device, it can be freely taken out and used at a later date.

In addition, 19 shown in FIG. 1 indicates a digital output terminal, which allows the output of the mixer 17 to be taken out directly as a digital output without passing through the DA converter 18 and input to the next stage image memory, etc. I can bring it.

(Effects of the Invention) By using the apparatus of the present invention described above, the following effects can be brought about.

1. Normally, the text and image signals used in TV and video broadcasts come in a wide variety of types and shapes, so it is difficult to store all of them digitally without degrading the quality of the text. Although it requires a huge amount of memory and is difficult to put into practical use in terms of cost, etc., the present invention can image characters, images, etc. written on the original plate, or enlarge or transform them. Since we use the same optical method as before, we can use other types of characters prepared in advance as they are, and immediately edit and record them as video signals while moving them on the monitor. Can be done. Therefore, it is easy to create captions, a wide variety of characters and images can be recorded in the semiconductor memory, and even if a photograph or the like is inserted into the original, it can be immediately converted into a caption. It has various advantages such as being able to easily draw color subtitles and colored ruled lines using the built-in color signal generator. Furthermore, in the present invention, it is of course unnecessary to perform processing steps such as character processing, development, stabilization, drying, etc. that were conventionally required. can provide good electronic captions.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the configuration of an electronic caption production apparatus according to the present invention. 1ess original edition, 200. Optical lens, 30. . Imaging camera, 4-Φ cable, 511--AD converter, 6... WIJl image memory, 7-- Read address movement control circuit, 8-- Color signal generation circuit, 9
...Writing area selection circuit, l. ...Write command circuit, 11...Microcomputer, 12...Digital fader, 13@φ cross point switch, 14-...Second image memory, 1
5.16...Antogame-1, 17 fist...Mixer, 1
8...DA converter, 19φ...digital output terminal.

Claims (1)

[Claims] An AD converter that encodes a character or image signal, and this AD
a first semiconductor image memory that records the converted digital signal; a digital fader that fades the color signal at the output of the first semiconductor image memory; and an output of the digital signal of the character or image and the first semiconductor image memory. , digital fader signal, and color signal to the second
a cross-point switch that selects an input signal to the semiconductor image memory; a control device that selects a write area to the second semiconductor image memory and issues a write command signal; An electronic caption production apparatus comprising a mixer that receives an output and a DA converter that converts the output of the mixer into analog, and that sequentially records character or image input signals in a semiconductor memory through a video-based monitor operation.