JPS641823B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of chronologically arranging a plurality of pieces of information consisting of control codes and data using bits configured in a predetermined order and transmitting the information from an information signal transmitting device to a terminal device via a single communication line. The present invention relates to an information transmission and display system that performs one-way transmission. More specifically, it is a stock price information reporting system, in which stock price information generated at a stock exchange is converted into information signals with the above configuration by the CPU of the information signal transmission device on the exchange side, and is divided into information signal units. The signals are transmitted in chronological order through a pair of communication lines in the order in which they occur. This communication line is repeatedly branched by a branching device along the way to transmit the above-mentioned information signals to terminal devices at many locations.

On the other hand, a terminal device receives more information signals than it can display, and extracts and displays a designated information signal from among them.

Figure 1 shows the configuration of the system.
2 is an information signal sending device, 2 is a communication line for unidirectional transmission, 3 is a branching device, and 4 is a terminal device. The present invention relates to improvements to this terminal device.

As shown in FIG. 2, the conventional terminal device displays information signals received from a communication line using a circuit consisting of a demodulation circuit 5, a control circuit 6, a display brand memory 7, a control memory 8, a display memory 9, and a display device 10. It is something. The number of information that can actually be displayed is all of the information listed on the 1st section sent by the stock exchange and the information on the 2nd section.
A total of approximately 960 stocks, including some listed on the section. This incoming information is once written into a control memory within the control device, and only the brands required by each terminal are transferred and displayed on the display memory within the control device.

In the early days when this system was implemented, it was not possible to write the desired brand into the control memory using the terminal device, and a factory-written read-only memory (ROM) was inserted into the control device as the display brand memory. Ta. However, recently it has become possible to write a desired brand into the display brand memory from a brand selection input device (keyboard) connected to the control device.

However, there is a problem here: In other words, since the signal sent from the information signal transmitting device is composed of a control code and the stock price data of the stock of that control code as described above, the person operating this terminal device (mainly securities personnel) can directly receive the signal. The brand is specified using an unrelated control code.
However, since securities managers always use stock codes (also called securities codes) in their daily transactions, they had to find and input the control code from this stock code using a correspondence table between control codes and stock codes. .

The present invention has been made to solve these problems, and it extracts and displays a desired stock with a stock code that is not included in the information signal from among a series of received stock price information, and It has a program that prevents the selection function from stopping even if a brand that is not included in the system is accidentally specified. This will be explained in detail below.

Figure 3 shows the circuit configuration of the terminal device.
1 is a control device that includes 12 to 18 described below. 12 is a demodulation circuit for information signals sent through a communication line; 13 is a control circuit; internally therein is a conversion circuit 14 that converts the brand code into a control code based on the correspondence table between the control code and the brand code; and this conversion circuit. It has a built-in comparison circuit 15 that compares the control code converted by the circuit 14 with the control code included in the information signal sent through the communication line and detects whether the two control codes match. . Reference numeral 16 denotes a display brand memory, which is a non-volatile memory such as a core, and the stored contents are unrelated to whether the power is connected or disconnected. 17 is a control memory, and 18 is a display memory. Reference numeral 19 denotes a display device, which usually consists of 4 to 16 screens. 20 is a stock selection input device, 2
1 is an external memory having a correspondence table between control codes and brand codes.

Next, the operation of this terminal device will be explained. First, a brand desired to be displayed and its display position are input using the brand code used in general securities transactions from the brand selection input device. This input passes through a control circuit, and once the brand code and its display position are written into the display brand memory. Since this display brand memory is a non-volatile memory such as a core, the stored contents are maintained regardless of whether the power is turned on or off unless a deletion command is input from the brand selection input device.

If the power switch of the control device is connected here,
A correspondence table of control codes and brand codes, which is the content stored in the external memory, is once written into the control memory, and then inputted to the conversion circuit 14 together with the content stored in the display brand memory 16. The conversion circuit 14 converts the brand code into a control code using a correspondence table between brand codes and control codes, and the converted control code is written into the display brand memory 16 together with its display position. The comparison circuit 15 compares the control code included in the information sent from the information signal sending device 1 through the communication circuit 2 with the control code written in the display stock memory 16, and if they match, the control code is The code is written to a specified position in the control memory 17, and if they do not match, the next signal is processed one after another without writing this signal to the control memory. On the other hand, when data for each brand is sent through a communication line, it is written into the control memory using the control code for that brand, and then only for brands whose display position has been specified will have their data transferred to that display position. do. The information developed at the designated position in this manner is transferred to the display memory and displayed on the display device.

Note that in the above-mentioned system, part of the control code may be changed once a year due to omission of brand specification or additional specification. In such a case, if you create a correspondence table between the external memory's control code and brand code into a correspondence table with a new control code and replace the entire external memory, all subsequent operations will be performed within the control device. It is extremely easy to operate as it can be done automatically.

As described above, according to the present invention, the person handling the terminal device can operate it using only the brand code that he/she uses in his/her daily work, so there is no need to convert it into a control code that is not directly related to his/her daily work. Not only this, but also no errors occur due to this conversion operation, so it is extremely effective in practice.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an outline of an information transmission and display system to which the present invention is applied. FIG. 2 is a circuit diagram of a conventional terminal device. FIG. 3 is a circuit diagram of the terminal device of the present invention. In the figure, 2 is a communication line, 11 is a control device,
12 is a demodulation circuit, 13 is a control circuit, 14 is a conversion circuit, 15 is a comparison circuit, 16 is a display brand memory, 1
7 is a control memory, 18 is a display memory, 19 is a display device, 20 is a brand selection input device, and 21 is an external memory.

Claims (1)

[Claims] 1. Bits configured in a predetermined order,
In an information transmission and display system in which multiple pieces of information consisting of control codes and data are arranged in chronological order in the order of occurrence and transmitted one-way from an information signal transmission device to a terminal device via a communication line, a correspondence table between brand codes and control codes is used. an external memory 21 in which is written and connected to the control device 11 of the terminal device, a control memory 17 in which the above-mentioned correspondence table inputted from this external memory 21 is written, and a brand selection input device 20 by the operator. a conversion circuit 14 that converts the brand code inputted together with the display position designation command from the control memory 17 into a control code according to the correspondence table written in the control memory 17; and a conversion circuit 14 that stores the converted control code together with its display position. The non-volatile display brand memory 16 compares the control code sent from the information signal sending device with the control code written in the display brand memory 16, and determines whether both control codes match. A list-based display device for stock price information, comprising: a comparison circuit 15 for detecting a match; and a display memory 18 in which the control code whose match is detected by the comparison circuit 15 is written in a designated position.