JPS5851270B2 - Data storage system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION BACKGROUND OF THE INVENTION A typical terminal device for receiving digital signals representing data information and visually displaying this information applies, among other things, a display device that displays the characters represented by the signals. Contains a character generator that converts the data into the form you want.

Manufacturers of this type of terminal typically produce systems that include only one character generator for every terminal used in the United States.

To date, manufacturers have created separate proprietary character generators for each country for systems used in foreign countries, even though many countries have many characters in common with the United States in their machine languages. was provided.

This poses undesirable expense and inventory problems when a relatively large number of countries are involved.

SUMMARY OF THE INVENTION Briefly, a system embodying the invention includes a data signal source and at least two character generators, one of which
can generate signals representing the characters of the first group,
The other one can generate selected supplementary characters to be used in conjunction with the characters generated by the first character generator.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The principles of the present invention can be applied to data processing and display systems that can be used in the United States and many other countries where each country has a common Arifa numeric symbol.

For purposes of illustration, the alphanumeric display terminal shown and described is available for use in the United States and nine other countries.

Each country uses many of the alpha characters used in the United States, but also has seven unique alpha numeric characters in the ASCII code table as shown in FIG.

In FIG. 2, terminal 10 includes an information signal source 20, which may be computer or otherwise coupled to conventional system elements including, among other things, a memory module 30 and a storage buffer 40.

In accordance with the present invention, the output of storage buffer 40 is coupled on data line 44 to a first character generator, in which case the first character generator receives signals representing letters, numbers, and numbers commonly used in the United States. It is assumed that this can occur.

The output of character generator 50 is coupled on lead 54 to a display 60 on which the characters are displayed.

Device 60 may be, for example, a 5EL FSCAN panel of the type manufactured and sold by Palose.

Typically, six data lines 44 are introduced into the character generator 50 and seven lines 54 appear at the output of the character generator and reach the display device 60.

According to the invention, the system 10 includes a second character generator 7
0, character generator 70 includes national sections for the nine countries listed above, and further includes seven unique characters for each country in display 60.

One suitable location and code configuration for 9 countries is the third
Shown in the table of figures.

Each section of character generator 70 is coupled to an output door 4, which is connected to display device 60.

Character generator 70 is also provided with input circuitry for generating signals for accessing each of the seven code locations.

The input circuit to the second character generator 70 is the storage buffer 40.
The encoder 100 has an output line 88 connected to the input of the full adder 80 .

The full adder also has a circuit connection to logic circuit 90, which in fact provides a unique identification code signal for each of the seven countries with one section in character generator 70.

The set of logic circuits 90 for a particular country is done by one or more jumpers connected in the circuit.

Therefore, the jumper can be modified to set the logic for any country desired.

Encoder 100 is also connected by leads 106, 114 to character generators 50, 70 and first character generator 50.
and deactivate the second character generator 70, or vice versa.

During the operation of the system 10 shown in FIG. .

Typically, the encoder is set to drive character generator 50 and disable character generator 70.

Thus, if the incoming information contains only characters used in the United States and foreign countries and for which the system is designed, the input information is provided to the first character generator 50 and an output signal is provided. Display device 60
will be displayed.

However, if the incoming information represents one of the selected country-specific characters, this information is sent to the encoder 100.
, the circuits 50 and 70 are switched so that the character generator 50 is deactivated and the second character generator 70 is activated.

The input signals together with the selected country code from the circuit 90 are now fed into a full adder 80 and these signals are summed by the full adder 80 to produce an output signal accessing the appropriate location in the second character generator 70. and at its output the desired character signal specific to the selected country.

Several detailed circuit elements that can be used in the system of FIG. 2 are shown in FIGS. 4 and 5.

In the system, the storage buffer 40 includes six flip-flops 40A, B, and 40B, each having a total of 12 output lines.
C, D, E, F, and the output lines are five AND gates 116-120 and four NAND gates 121-1.
24.

Each flip-flop 40 has output lines labeled 1 and 0, flip-flop 40A has output lines 40A-1 and 40A-0, and flip-flop 40B has output lines 40A-1 and 40A-0.
B-1 and 40B-0, the flip-flop 40C has output lines 40C-1 and 40C-0...

As shown, the output lines from storage buffer 40 are logically connected to AND gates 116-120 and NAND gate 1.
21 to 124.

AND gates 116-120 and NA
The outputs of NAND gates 123, 124 are logically coupled to a selected one of AND gates 134-139, and the outputs of NAND gates 121, 122 are logically coupled to a selected one of AND gates 134-139.
ND gate 140, 141° AND gate 142, 14
3 and AND gate 13 via NOR gate 144
4 to 139.

NAND gates 123 and 124 are NAND gates 130
is connected to AND gate 139 via.

AND gates 134-139 are coupled as shown to NOR gates 140 and 14L142, the outputs of which provide data signals provided to full adder 80 on leads 147, 148, and 149, respectively.

Leads 147, 148, and 149 are coupled to an OR gate 150 consisting of an AND gate 145 and a NAND gate 146.

The output of AND gate 145 is set to NA by gate 154.
ND gate 146 is further connected to the first
is coupled to a character generator 50.

The output of NAND gate 146 is coupled to second character generator 70 by lead 156.

A NOR gate 150 is connected to the output circuit of the character generator to enable and disable the character generator as desired.

The country selection logic 90 shown in FIG. 5 consists of a plurality of jumper locations 158 in which jumpers are selectively configured to select the country in which a particular system is designed to operate. can be inserted.

The jumper position is connected to the potential source 16 by leads 159 and 161.
3 and is connected by lead 160 to the full adder.

In an embodiment of the invention, six jumper positions are provided for the nine countries and their special codes.

Each jumper or combination of jumpers sets a full adder to receive message information in a particular country code.

The output of full adder 80 comprises six information lines 162 which form the input to character generator 70, and as previously described, the output of the character generator is coupled to display device 60 by seven data lines 74. Ru.

Based on the logic circuit described above, if a signal representing a symbol in the country's unique code for which circuit 90 is set is received on lines 40A-40F on the output of the storage buffer, the various The gate assumes an output polarity such that OR gate 156 drives character generator 70, deactivates character generator 50, and passes signal information through the full adder to character generator and display 60.

As noted above, the principles of the present invention may also be utilized in nine or more countries outside of the United States and in the case of one or more character generators 70.

A more general form of the invention is shown in FIG.

Is the system shown here multiple character generators that memorize character codes from other countries? A plurality of character generators, including OA, B, C, . . . , are connected in parallel to the output of full adder 80.

The drive control 102' of encoder 100 is coupled to all character generators 70 and is logically configured such that only one character generator is activated and all others are deactivated.

Logic circuit 90 providing the code identification of the selected country to the full adder.
includes a plurality of code identification circuitry, and the selected country code may be set by one or more movable jumpers.

Therefore, the logic circuit can be changed at any time if desired.

The 5ELF-8CAN panel shown schematically in FIG. 7 includes a first layer of scanning cells (not shown) arranged in rows and columns;
It is a dot matrix display device having an anode electrode (not shown) arranged in each row of cells and a cathode electrode 164 arranged in each column of cells.

The panel also has display cells 163 arranged in respective scanning cells.
Contains layers of

Display cells 163 distribute cathodes 164 and have their own row display anodes 168.

The scan cell has a potential applied to all scan anodes from a power supply 170 and a potential applied to each cathode 164 from a drive circuit 170.
Each column is ignited by a potential applied to the column.

The information signal from one character generator is applied to the display anode at lead 74, causing the associated scan cell to fire for each column and the selected display cell to illuminate.

This operation is repeated periodically at such a rate that a static but changeable character is displayed in the display cell.

Systems embodying the invention may also be used with other alpha numeric display devices such as cathode ray tubes.

The following embodiments of this invention are possible.

(1) a data signal source; and a first circuit path connected between the signal source and a first character generator for processing a first group of character representation signals and displaying them on a display device. and circuit means connected between said signal source and a second character generator for recognizing a second group of characters and for processing said second group of characters and displaying them on a display device. a second circuit path including two character generators;

(2) In the system defined in the preceding paragraph (1), said circuit means for recognizing characters of a second group transmits data signals representing characters from said second group to said second group of characters.
a character generator, deactivating the first character generator and driving the second character generator when a character from the second group appears at the output of the data source; A system including an encoder for deactivating the second character generator and driving the first character generator when a character from the first group appears at the output of the data source.

(3) A system as defined in paragraph (1) above, wherein said second character generator includes a plurality of sectors, each of which is separately energized and capable of producing display signals representing a unique set of characters.

(4) a data signal source; a first character generator for encoding the signal into a form that can be applied to a display; a display coupled to the output of the first character generator; a signal processing path including an encoder circuit connected in parallel with the character generator and having an input coupled to the data line; and a full adder, the output of the encoder being coupled to the full adder; a code generator having a characteristic output signal code coupled to the inputs of the full adders, the outputs of the full adders being configured to generate display signals each representing a character for a selected country; a second character generator including a plurality of areas, the second character generator being coupled to an input of the display device, and further between the encoder and the first character generator; a first character generator coupled to the first character generator for driving and deactivating the first character generator;
circuit means coupled between said encoder and said second character generator for driving and deactivating said second character generator;
A data processing system comprising circuit means for selecting either said first or said second character generator (J) for operation in accordance with a data signal received from said data source.

[Brief explanation of the drawing]

FIG. 1 is a table showing selected countries and unique characters for each type of selected country that can be processed according to the invention; FIG. 2 is a schematic diagram of a system implementing the invention; FIGS. Figure 4 is a table showing the code and location of the Kokushi character generator as the system was designed; Figures 4 and 5 are schematic diagrams detailing several elements of the system of Figure 2; Figure 6 is a Schematic diagram of another system implementing this invention, No. 7
The figure is a schematic diagram illustrating one type of display device that may be used in the system of the present invention. In the figure, 10...terminal device, 20...information signal source, 30...memory module, 40...
...Storage buffer, 50...Character generator,
60...Display device, 70...Second character generator, 80...Full adder, 90...
・Logic circuit, 100...Encoder.

Claims (1)

Claims: 1. A data processing and display system comprising: a display device for visual display of characters; and a source of data signals to be processed and displayed on the display device; the signals include signals representing a first set of characters and other signals representing a plurality of different sets of characters, the data signal source being coupled to a first path, and the data signal source being coupled to the first circuit path; a first character generator having an input and an output and adapted to generate electrical display signals representing a first set of characters; and a first character generator configured to generate electrical display signals representing a first set of characters; the first character generator including a connection to an input of the first character generator;
an output thereof is coupled to the display device for providing a set of electrical display signals, a source of the data signal is coupled to a second circuit path, and the second circuit path includes an input and a second character generator having an output, the second character generator being adapted to generate electrical display signals representing a plurality of sets of characters different from the first set of characters; and an output of the second character generator is coupled to the display device, the second circuit path further having an input and an output, the output being coupled to the input of the second character generator. a full adder coupled to an encoder having an input and an output, the output of which is coupled to the input of the full adder; , switch means for setting the logic in the full adder to provide an output signal representing one of the different sets of characters; a connection from the source of the data signal to the encoder input; and a character generator control circuit. and a connection from the encoder to the character generator control circuit and another connection from the character generator control circuit to the first and second character generators, thereby controlling the source of the data signal. provides a signal representing one of the first set of characters, the first character generator is activated, and the source of the data signal provides a signal representing one of the different sets of characters. , wherein said second character generator is activated.