KR900000475B1 - Stockes market condition display devices by color tv - Google Patents

Abstract

The display having a controller for driving 4 color CRTs inlcudes video control boards (4I-4N) for supplying the data from data source, address/laster scan signal, and control signal to slots (271-273), and a video memory board inserted in the slots (271-273) for selecting memory region in which the characters to be displayed is stored according to the address set by a dip switch (33).

Description

Stock quote display using color CRT

1 is an overall schematic diagram of a stock computer system constructed using the circuit of the present invention.

2 is a schematic configuration diagram of a video control board according to the present invention.

3 is a configuration diagram of a video memory board according to the present invention.

* Explanation of symbols on the main parts of the drawings

1: Stock Computer Center 2: Modem

3: intelligent terminal device 41-4N: video control board

51: Video memory board 61-64: Color CRT

21: Serial I / O Port 22: Parallel I / O Port

23: central processing unit 24: dip switch

25: Romans 26: Ram

27, 271-273: Slot 28: CRT controller

29: multiplexer 31: color RAM

32: character ram 33: dip switch

34: multiplexer 35, 36: buffer

37: color image ROM 38: character image ROM

39: output circuit

The present invention relates to a display device that aggregates multiple color CRTs in one place and displays information on stock quotes of various stocks on the screen of the CRT in color. In particular, one color CRT controller can drive four color CRTs. It relates to a stock ticker display device.

In order to inform customers of changes in stock quotes, securities companies have traditionally delivered stock information in chalk on the blackboard. A system for displaying information on stock quotes on a monitor using a CRT is being developed by using computer communication.

However, a single securities company needs a large space to display dozens of stock quotes information about several companies in a certain place, and when displaying stock quotes using a CRT, 8 stocks are displayed on the screen of one CRT. If it can be marked, about 40 CRTs should be installed to mark over 300 stocks.

The installation of so many CRTs will be a problem that takes up a large space, but the CRT controller device that displays characters or figures on the screen of the conventional CRT is composed of one controller for one CRT, so that dozens of the above To run each CRT in the securities market that uses CRTs to display the stock information that changes from day to day, such as the closing price, selling price, current price, same-day trading volume, and stock index of the listed stocks, on the CRT screen. Must configure as many CRT control devices as the number of installation of CRT.

Therefore, if 40 CRTs are to be installed, for example, 40 CRT control devices must be installed. As a result of the installation of many CRT control devices, this not only takes up a large amount of space but also requires a considerable cost of equipment. It became.

Therefore, the present invention has been invented in view of the above-described circumstances, so that the data transmitted from the stock computing center can be received as serial data so that the installation of the transmission line can be used, and the data received using the dip switch is used. If the data belongs to the CRT control device of the CRT control device, and then the data belonging to the CRT control device of the CRT is stored in the video memory configured to be symmetrical with 4 CRT screens, and the video memory area is defined as a dip switch corresponding to each CRT. The purpose of the present invention is to provide a stock quote display device using a color CRT that can display characters, figures, and colors on four CRTs as a control device.

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a general overview of a stock computer system constructed using the video control board and video memory board of the present invention. The stock computer center 1 is located at the head office of a securities company and processes all information on stock quote data. do. The information on the stock quote data processed by the stock computer center 1 is sent to the intelligent terminal device 3 installed at each branch of the securities company via the modem 2. In the terminal device 3, data is sorted from the information sent from the stock computer center 1 by the number, item, full-day closing price, seller, buyer, registration width, present price, closing price, and the like. Through the serial data signal and supplies it to the video control board 41-4N driving the CRT.

Accordingly, the video control board 41-4N receives only data transmitted to itself among the data transmitted from the intelligent terminal device 3, stores the data in the video memory board 51, and stores the data in the video memory board 51. Each area is divided so that the data recorded in the corresponding memory area is displayed on the screen of the color CRTs 61-64.

Here, the video control boards 41-4N are connected to the video memory boards 51, respectively, to record the data received by the video control boards 41 on the video memory boards 51, and the memory of the video memory boards 51. The area is divided into four to correspond to four color CRTs 61-64. When data is written, the area corresponding to the CRT of the memory on the video memory board 51 is the address of the data to be displayed on the CRT. At the time of display, an address designating a memory area corresponding to each CRT on the video memory board 51 is set so that letters, numbers and the like can be displayed on four color CRTs as one video control board.

The video control board 41-4N and the video memory board 51 constituting the stock computer system as described above are the main parts of the present invention, and specific configurations thereof are shown in FIGS. 2 and 3.

That is, FIG. 2 is a block diagram of the video control board according to the present invention, which receives only the data corresponding to itself among the data signals supplied from the terminal device 3, supplies the data to the video memory board, and controls the video memory board. The received data is displayed on the screen of the CRT in letters or numbers, and FIG. 3 shows a configuration diagram of a video memory board according to the present invention. Four such video memory boards are arranged in parallel on the video control board. It is connected to receive an address, data, and control signal to display data of a part of memory areas on each video memory board as letters or numbers on a color CRT screen.

In more detail, the serial data signal supplied from the intelligent terminal device 3 is supplied to the serial input / output port 21 through the input terminal IN and then stored in the parallel input / output port 22.

On the other hand, the central processing unit (23) reads the setting number of the dip switch (24) connected to the parallel input / output port (22), remembers how many times its unique number is, and then stores the serial input / output port (21). It is determined whether the data supplied from the terminal device 3 corresponds to the address number set by the dip switch 24, and if the data corresponds to the own address set by the dip switch 24, it is accepted. Do not accept data that does not correspond to your address.

When such a dip switch 24 is 8 bits, the video control board receiving the dedicated data from the terminal device 3 can send information data on the stock quote to the video memory board 51. A program for controlling such a series of operations is stored in the ROM 25, and a RAM 26 is provided to store data processed by the central processing unit 23 according to the program stored in the ROM 25.

As described above, the information data on the stock quotes received by the video control board is supplied to the video memory board shown in FIG. 3 under the control of the central processing unit 23. The video memory boards are connected in parallel. It is inserted into the slots 27, 271, 272 and 273 of the bird so as to receive address signals, data signals and control signals from the video control board so that the transmitted information data can be displayed as letters or numbers on the screen of the CRT. .

)등으로써, 각 슬롯(27)(271-273)에 꽂혀지는 비디오 메모리보드에 동시에 공급되게 한다.In this case, a signal supplied to each slot 27, 271-273 is a multiplexer for switching between a memory address signal MA supplied from the CRT controller 28 and an address bus ADDR supplied from the CPU 23. 29) output bus signal (A _0- A ₁₄ ), data bus signal (D _0- D ₁₅ ) supplied with 8-bit color code data and 8-bit character code data, and supplied from the CRT controller (28). The master scan signal RA, the horizontal and vertical synchronization signals HS, VS, and the output enable signal supplied from the central processing unit 23 through a logic circuit (not shown) (

And the like are supplied to the video memory boards inserted into the respective slots 27 (271-273) at the same time.

)에 의해 딥스위치(33)의 셋팅신호가 절환되어 멀티플렉서(34)를 통해 칼라램(31)과 캐랙터램(32)에 연결되어 있다.Meanwhile, in the video memory board 51, as shown in FIG. 3, a color RAM 31 and a character RAM 32 having an 8K byte capacity are connected in parallel to the address buses A ₀ -A ₁₂ . The address bus signal A ₁₃ (A ₁₄ ) is an output enable signal (

The setting signal of the dip switch 33 is switched by a) and is connected to the color ram 31 and the character ram 32 through the multiplexer 34.

In addition, a color image ROM 37 for generating a color image is connected to the data ends of the color ram 31 and the character ram 32, and the buffers 35 and 36 for receiving data from the central processing unit 23 are connected. ) And a character image ROM 38 for generating a character image by a combination of the raster scan signal RA supplied from the CRT controller 28, the color image ROM 37 and the character image ROM 38 are connected. The output terminal of the conventional output circuit 39, which converts the color image and the character image into an analog signal, is connected, and is converted into red, green, and blue color signals through it, and then supplied to the color CRT (61). Will be displayed.

Here, the color RAM 31 and the character ram 32 have a memory capacity of 8K bytes. In order to display characters on one CRT screen, the capacity of the color RAM 31 or the character ram 32 is 2K bytes. It is enough.

Therefore, when the memory areas of the RAM 31 and 32 are divided into four and the memory areas displayed for each video memory board are divided and displayed on the screen of the CRT 40, the text is displayed on four screens as one video control board. You will be able to mark.

The division of the memory area is determined by the dip switch 33, and the memory area is divided by setting the 2-bit dip switch 33 differently.

)를 하이레벨로 하여 멀티플렉서(29)를 통해 어드레스(A₀-A₁₄)를 출력시킴과 더불어 데이터버스중 하위 8비트(D₀-D₇)에 색코드데이터를 출력시키고 상위 8비트(D₈-D₁₅)에 캐랙터코드 데이터를 출력시킨다.First, a process of recording data transmitted from the terminal device 3 into the RAM 31 and 32 will be described. In the CPU 23, an output enable signal (

) To set the high level and output the address (A ₀ -A ₁₄ ) through the multiplexer 29, and output the color coded data to the lower 8 bits (D ₀ -D ₇ ) of the data bus and the upper 8 bits (D _8- D ₁₅ ) Outputs the character code data.

The address output from the central processing unit 23 designates the position of the corresponding CRT among the four CRTs as the address A ₁₃ (A ₁₄ ), and the character display position on the CRT screen as the remaining addresses A ₀ -A ₁₂ . It is configured to specify.

In this way, when the addresses A ₀ -A ₁₄ are designated, data through the buffers 35 and 36 is written to the color RAM 31 and the character RAM 32, which are stored in RAM on four video memory boards. The same is recorded.

)가 로우레벨로 되어 멀티플렉서(29)는 CRT콘트롤러(28)의 출력 어드레스를 비디오 메모리보드의 램(31)(32)에 공급하고, 멀티플렉서(34)는 딥스위치(33)에 셋팅된 어드레스를 선택하여 램(31)(32)에 공급한다.Next, when the recorded data is displayed on the screen of the CRT 40, the output enable signal from the central processing unit 23 (

) Becomes low level, and the multiplexer 29 supplies the output address of the CRT controller 28 to the RAMs 31 and 32 of the video memory board, and the multiplexer 34 supplies the address set to the dip switch 33. It selects and supplies to the ram 31 and 32. As shown to FIG.

Accordingly, the RAM 31 and 32 receive an address signal by combining the address of the CRT controller 28 through the multiplexer 29 with the address of the dip switch 33 through the multiplexer 34. 33) is set differently for each of the four memory areas of the video memory board 51, so the addresses supplied to the RAMs of the video memory boards are different, so that the memory areas are divided into four addresses. That is, the memory areas displayed on the screen of the CRT connected to each video memory board are distinguished by determining the memory areas of the RAM 31 and 32 according to the address set by the dip switch 33. That is, when the state of the dip switch 33 is 00, CRT ₁ (61) is selected, when 01, CRT ₂ (62) is selected, when 10, CRT ₃ (63) is 10, and when 11, CRT ₄ ( 64) is selected.

In this way, the data for the memory areas of the RAM 31 and 32 separated by the dip switch 33 are outputted by the address supplied from the CRT controller 28 so that the color image ROM 37 and the character image ROM 38 can be obtained. By outputting the color image data and the character image data through the () to display characters and colors on the screen of the CRT (61-64) through a normal output circuit.

In the case of the video control board 41-4N, it can be seen that the operation as described above, a description thereof will be omitted for simplicity of the specification.

As described above, the present invention receives data corresponding to itself by a dip switch in a video control board and writes the data to the video memory board, and divides the memory area corresponding to its CRT by a dip switch in the video memory board. By displaying color and color, it is possible to connect color CRT through 4 video memory boards to 1 video control board, and it is inexpensive to construct stock price display device that displays stock price information by joining multiple color CRTs in one place. It has the advantage of being able to provide effective facilities at a price.

Claims (4)

In the securities computing system in which the stock computer center 1 transmits information to a terminal device 3 installed at a branch of each securities company through a modem 2 to be displayed on a plurality of CRT screens 61-64, Serial I / O Port 21 and Parallel I / O Port 22, Central Processing Unit 23, Dip Switch 24, ROM 25, RAM 26, Four Slots 27 (271-273), CRT It consists of a controller 28 and a multiplexer 29 to receive its own data set by the dip switch 24 of the serial transmission data, and receives the received data, address, raster scan signal, and control signal into the slot 27 ( 271-273, video control board 41-4N, color ram 31, character ram 32, dip switch 33, multiplexer 34, buffer 35, 36, color It is composed of an image ROM 37, a character image ROM 38, an output circuit 39, and a color CRT 40 so as to be inserted into slots 27 and 271-273 of the video control board 41-4N, respectively. Set by position 33 The video memory board (51-54) stock ticker display device using a color CRT, characterized in that a provided with a so-separated memory area of the character to be displayed on the screen of the CRT (40) in accordance with the address. The four slots (27) (271-273) are address signals (A ₀ -A) of the multiplexer (29) for switching the address of the central processing unit (23) and the memory address of the CRT controller (28). ₁₄ ), the data bus D ₀ -D ₁₅ , the raster scan signal RA, and the control signal (

Stock quote display using a color CRT, characterized in that connected in parallel. The input terminal of the multiplexer 34 is connected to a setting address of the address A ₁₃ (A ₁₄ ) and the dip switch 33 from the central processing unit 23 to the output enable signal (

), The address A ₁₃ (A ₁₄ ) is supplied to the color ram 31 and the character ram 32 when the data is output, and the address of the dip switch 33 is supplied when the data is outputted. Stock quote display using CRT. The memory area of the characters displayed on the screen of the CRT 61 among the memory areas of the color ram 31 and the character ram 33 is determined according to the setting contents of the dip switch 33. Stock quote display using a CRT.

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