JPS5949621B2 - Keisanki - Google Patents

Description

[Detailed description of the invention] The present invention relates to small electronic equipment.

Conventional electronic devices, such as electronic desktop calculators with a journal-type printing function, have, in addition to the four arithmetic operations, a non-atto key that allows the contents of a register to be printed out regardless of normal operations.

This key is generally referred to as the aΦ'' key, and is used to print the date and item number when calculating slips or other calculations. Such key operations facilitate later organization or checking of calculation contents. FIG. 1 shows an example of conventional printing using a mouth key.

In the conventional example, when September 3, 1973 is printed using the ° key, it becomes Φ1973.93 as shown in FIG.

Here, 1973 and September are distinguished by point symbols, so the year and month can be clearly distinguished, but September and 3
It is difficult to distinguish between the days because no point symbol is printed between them. This is because the point symbol is used only to distinguish between the integer part and the decimal part, and only one point symbol can be inserted into the numeric data at most, so the numeric data is divided into two or more parts. Not being able to do so was extremely inconvenient. The present invention improves the above-mentioned points and includes an input means for inputting numerical values, symbols, and a plurality of commands, a first storage means, a second storage means, and a plurality of operations of the input means. storing the plurality of symbols inputted as a plurality of symbol information together with the numerical value in the first storage means in order of input, and storing the plurality of symbol information and the numerical value input from the input means storage processing means for storing one of the inputs from the input means in the second storage means together with the numerical value as decimal point information for identifying an integer part and a decimal part of the numerical value input from the input means; Visualizing the plurality of symbol information and the numerical value stored in the first storage means by one command, and visualizing the decimal point information and the numerical value stored in the second storage means by other than the plurality of commands. The present invention provides an electronic device having a means for visualizing.

Other objects will become clear from the following description of one embodiment of the present invention. FIG. 2 is a block diagram showing an embodiment of a computer for electronic equipment according to the present invention.

In the figure, KB is a keyboard for inputting information such as numerical values and commands into the computer, and Φ keys 0 to 9, , four arithmetic commands, and non-add are arranged.

The CC is a control circuit that outputs a key signal to the keyboard, receives the signal, determines the type of operated key, and performs sequential control. A is read-on memory (
A ROM) stores microinstruction information for sequential control, and generates different microinstruction information depending on communication with the control circuit CC. C is a ROM decoder that receives information from read-on memory-A and discriminates the information.

D is a circuit that generates 16 types of codes 0 to 9 and A to F in a 4-bit configuration based on the signal from the R0M decoder D, and inputs the above code signals to a circulation register to be described later.The details are shown in Figure 3. As shown, a buffer register DB1 with parallel input and serial output stores the encoder DE1 code signal.
Control gate DG1, P that inputs information into the circulation register
G2, DG, and such a circuit DlliR
The encoder DE converts the OM decoder C signal into a 4-bit code signal, and inputs the signal to the buffer register DB. The signals stored in the buffer register DB are serially connected to the control gates DG1. It is input into the circular herb of the circular register E via DG3. The control gate DG1 is R
The control gate DG2, which opens and closes in response to a signal from the OM decoder C, and also controls the circulation loop, closes and opens. E is a circular register for holding numeric or symbolic information, 1 digit 4
There is a bit configuration. F is a circuit that detects whether numeric or symbolic information is stored in the EM digit one below the highest value digit of the circular register E (7). G is a circular register E
The numerical value is a shift circuit for shifting symbol information one digit to the left (earth digit), and as shown in Figure 3 in detail, it consists of a one-digit register GR and control gates GG1, GG2, GG3, and G.
When not shifted to the left by a signal from ROM decoder C, the information in register E enters register ε via control gates GG2 and GG4. Also, to shift left by one digit, register E
The information enters register E via control gate GG1, register GR1, control gates GG3 and GG4. I transfers the data in the circular register E to the control gates HG1, HG2, HG3.
It counts the drum position detection signal TP received from the printer via the printer, matches the TP count with the data in register E, and sends the matching data to a register to be described later. It is also a printer control circuit that performs other printing controls necessary for printing. J is composed of a static shift register, receives matching data from printer control I, and sends it to printer L via amplifier K. The printer L drives a hammer in response to a signal from the amplifier K to print on printing paper. M is a circuit that inputs the encoder output of circuit D and inputs numerical values and decimal point information to the circulation register N1. CG1, CG2, CG3
is a control gate for information input from circuit M to register N1.

N2 is a register into which numerical data, decimal point data, etc. are input, and N is an arithmetic register for processing information in registers N1N2, which is connected to the adder circuit P.

Q is a control circuit having a control gate that moves information in registers N1N2N. The operation of the embodiment having the above configuration will be explained. As an example, a case will be shown where September 3, 1975 is printed by pressing the H key. First, when the number key ■ is pressed, the control circuit CC detects that the number key ■ is pressed.

Accordingly, this is notified to R0MA, and ROMA outputs a sequential instruction to ROM decoder C to store the numerical value "1" in circular register E. ROM decoder C
decodes these instructions and generates code 1'' in circuit D, which is input to the least significant digit -1 of circular register E.
After that, for the next numeric key, the detection circuit F detects whether data is stored up to the EM digit one digit below the most significant digit in the circular register E, and the data must be stored up to the EM digit. data in circular register E to the left (higher digits)
Shift by one digit and leave the least significant digit E1 empty. Fourth
The figure is a control diagram showing the above control. CG (1) in the diagram
E1 is circuit D, which generates code 01n and inputs it to the least significant digit El of circular register E.

Next, when the numeric key (9) is pressed, the code t39n, which is processed in the same way as above, is input to the circulation register E. ○ The same process as above is also performed when the numeric key (7) and (5) are pressed. will be carried out.

Next, when the point key TEL is pressed, the process is the same as above, but the code indicating the point of the symbol information generated in the circuit D is stored in the least significant digit of the circular register E as 'An'. Thereafter, key operations (9) and (3) are processed in the same manner.

In this way, we end up with 1975 in circular register E.
Data A9A3 is stored. While the input information from the keyboard KB is stored in the register E as described above, almost the same information as the register E is also input to the register N1. The contents of register N1 are in circuit D.
Encoder DE of D sequentially 1, 9, 7, 5, . . . , 9,
, 3 is sent, but when the next point after 15゛ is input, the decimal point information is input to the digit that stores the decimal point of register N1, and when 69n is input, the decimal point digit is input. Digit data is entered in the digit that stores the position. Next, when a decimal point is input, the digit position information is cleared and the digit position data becomes O again. Next, when ``3'' is placed, the information content of the digit position becomes 1, and the contents of register N, end up containing 19759, 3. In other words, here, the minimum decimal point information is incorrect. Therefore, when the H key is operated next, a command is issued from the ROMA and the control shown in FIG. 5 is performed.

First, in order to print data on the left side of the printing paper, the data is shifted to the left until the digit of circulation register E<7>EM. When the data has not been filled to the digit, the shift circuit G shifts the data one digit to the left.

At that time, suppress load 1Fn is inserted into the lowest E1 digit where data is lost due to the left shift of one digit. This is to suppress lower digits other than the data part when data is printed left-aligned on the printing paper.

In order to carry out the above left shift to M digits and print a straightening mark on the most significant digit X, a code 'Bn' is generated in circuit D and inputted. Through these processes, the data in the circular register E becomes B19 if the circular register E has 16 digits.
75A9A3FFFFFFFF.

To print this data, print control I
The print control I counts the printer's drum position detection signal TP, matches the TP counter (not shown) with the data in the circulation register E, and sends the matching data to the static shift register section J. , the hammers of the printer L are driven in parallel through the amplifier K, and as shown in FIG. }Data entered in register N, 1975
In 9●3, a signal is generated from the ROMA by operating the ◆ key or by operating the key after the ◆ key, and is cleared by the output of the ROM decoder 0 that receives this signal.

When performing the calculation in the above embodiment, if it is performed according to FIG.
When it is inputted, it is placed in the register N1 as described above.

Next, when the ``+'''' key of the addition instruction is operated, data 1
``'' is added to the data in register N3 (initial data content is 0) and remains in register N3. Also, when the + key is operated, data 11n in register N1 is sent to printer control circuit 1, and TP When it matches the contents of the counter, it is sent to register J and sent to printer L via amplifier K, where it is printed together with an addition symbol as shown in FIG.

Next, when the arithmetic number ``2'' is input, it is input to register N, and the next operation of the + key performs the same operation as before, the data is printed, and the addition result is stored in register N3.
remains.

Next, when the * grand total key (not shown) is operated, the addition result of 1+2 is printed. With the configuration as described above, results as shown in FIG. 6 can be obtained. FIG. 7 shows another printing example of the calculator according to the present invention, and since a plurality of point symbols can be input, a simple graph can be created. FIG. 8 shows another embodiment in which the display is performed using a segment type thermal head or a normal display tube. R is a segment decoder that inputs display information from the control gate HG3 shown in FIG. is applied to. Further, the digit signal of the display device S may be supplied from the control circuit CC or one end of the matrix of the keyboard KB.

The display device described above can also have the same effect as described above,
Contents of displayed information can be clearly distinguished.

The same effect as described above can be obtained even when a single-digit thermal head is provided.

Also, when you want to make the year, month, and day boundaries clear, if you provide a means to determine that year, month, and day data has been input, it is possible to automatically You can also insert separator marks between the year, month, and day.

At this time, or at other times, a single symbol, three-digit scale symbol, or other special pattern symbol may be used as a delimiter mark. As detailed above, the present invention includes an input means for inputting numerical values, symbols, and a plurality of commands, a first storage means, a second storage means, and an input means for inputting numerical values, symbols, and a plurality of commands by multiple operations of the input means. The plurality of symbols are used as plurality of symbol information together with the numerical values? The symbol information and the numerical value are sequentially stored in the first storage means in the input order, and one of the input symbols input from the input means is stored in the integer part and decimal part of the numerical value input from the input means. storage processing means for storing in the second storage means together with the numerical value as decimal point information for identifying the plurality of symbol information and the plurality of symbol information stored in the first storage means by one of the plurality of instructions; By providing means for visualizing the decimal point information and the numerical value stored in the second storage means in addition to the plurality of instructions, the symbol input from the input means is used as a decimal point, Furthermore, electronic devices that can be visualized as symbolic information can be realized.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of conventional printing.

Claims (1)

[Claims] 1. An input means for inputting numerical values, symbols, and a plurality of commands, a first storage means, a second storage means, and a plurality of said symbols input by multiple operations of said input means. The plurality of symbolic information and the numerical value are sequentially stored in the first storage means in the input order together with the numerical value as symbolic information, and one of the input symbols input from the input means is inputted from the input means. storage processing means for storing in the second storage means together with the numerical value as decimal point information for identifying an integer part and a decimal part of the numerical value; and means for visualizing the plurality of symbol information and the numerical value, and visualizing the decimal point information and the numerical value stored in the second storage means in addition to the plurality of instructions.