JPS5937882Y2 - error display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an error display device for a small electronic computer in which an error display is displayed in the data display section.

Error indications in conventional small computers are provided with error indicator lights corresponding to the error check locations.
The amount of error generated at each error check location is displayed using a different error indicator light.

However, if error indicator lights are provided corresponding to each error check location as in the conventional method, the number of error indicator lights increases in proportion to the number of error check locations.
Therefore, the area occupied by the error indicator lamp becomes large, which poses a problem in terms of miniaturization.

The present invention has been developed in view of the above points, and it uses a common error indicator light to indicate the occurrence of an error for each error, and also indicates the location where the error has occurred by displaying a specific digit on the data display section. It is an object of the present invention to provide an error display device which is extremely advantageous for miniaturization by reducing the area occupied by the error display lamp.

Hereinafter, an embodiment of the present invention will be described with reference to a gold-plated metal.

In the figure, reference numeral 11 denotes a key input unit, and data inputted by the key input unit 11 is passed through a buffer 12 to an arithmetic circuit 1.
3 and the fixed program storage section 14.

The fixed program storage section 14 is constituted by, for example, a ROM (read only memory), stores all basic programs, and controls the calculation operation of the wave meter circuit 13 using this program.

The fixed program storage unit 14 stores an error handling routine for determining error handling.

On the other hand, the arithmetic circuit 13 is provided with an address control section 15, which controls the address of the fixed program storage section 14.

The arithmetic operation circuit 13 includes a display register 16 in which display data such as numeric data and operation results is set.

The input side of this display register 16 includes an input terminal 17a,
A gate circuit 18 equipped with 17be is connected.

This gate circuit 18 is controlled by a program that is successively outputted from the fixed program storage section 14, and one input terminal 17a receives set number data or arithmetic results, and the other input terminal 17b receives error information. is input.

The data input to the display register 16 is returned to the input side via the gate circuit 18 and is held in circulation.

The data held in the display register 16 is sent via a decoder 19 to a display section 20 using, for example, a display tube sound, and is displayed.

21 is an error detection circuit, and this error detection circuit 2
1 shows the workpieces installed at each error check location.

error detection elements 22a, 22b, . . . are connected.

The error check is performed to check, for example, whether the perforated tape is properly loaded, whether the print paper is properly loaded, and whether there is a sufficient amount of print paper remaining.

Therefore, error detection. Output elements 22 a s 22 b,・
...a light source (not shown) consisting of gold, for example a phototransistor, arranged through perforated tape or printed paper metal.
Error check 4 is performed depending on whether or not the light beam is received.

Error detection in the error detection circuit 21 is performed in synchronization with a timing signal supplied from the fixed program storage section 14 via the signal line 23.

Further, the error detection circuit 21 is supplied with various key signals from the key human power section 11 via the signal line 24, and is designed to check whether or not there are any operational errors in key operations in the key human power section 11. It is.

For example, when the program start key is operated in the key manual section 11, a program start signal is given to the error detection circuit 21 via the 24K signal line, and a program start check signal is sent from the fixed program storage section 14 via the 24K signal line. is given.

The program start key is pressed after various operations have been performed in a predetermined order.
The program start key is suppressed after various operations such as the clear key is pressed and the program number key is pressed as necessary, and the program start key is not operated at any other time. In this case, errors are checked using a program start check signal outputted from the fixed program storage section 14 via the signal line 25.

When the error detection circuit 21 detects an error, this error detection signal is sent to the error flip-flop circuit 26.

This error flip-flop circuit 26 is activated by an error detection signal sent from the error detection circuit 21.
-J, the error indicator light 27 provided close to the display unit 20 lights up.

Furthermore, when the error detection circuit 21 detects an error, it sends it to the code signal sound calculation circuit 13 corresponding to the location where the error has occurred.

When the arithmetic circuit 13 receives an error code signal from the error detection circuit 21, the address control section 15 operates to designate an address for the error processing routine stored in the fixed program storage section 14.

When error processing routines are successively outputted from the fixed program storage section 14 by this address specification, an error processing operation is started, and the gate circuit 18 is connected from the input terminal 17a to the input terminal 1.
7b1 rule, and a specific numerical value is displayed in a predetermined digit of the display section 20 according to the content of the error code signal.

That is, the error indicator light 27 indicates the occurrence of an error, and the position of the display digit on the display section 20 at this time indicates the location where the error has occurred.

When the above error is displayed, a reset signal is sent from the arithmetic circuit 13 or the fixed program storage section 14 to the error flip-flop circuit 26 after a certain period of time or when the cause of the error is removed, and the error flip-flop circuit 26 is reset. Returns from error display state to normal operating state.

In this case, the error flip-flop circuit 26 may be reset by manually operating a reset switch.

Thus, the operations of each of the sections described above are performed in synchronization with the pulse signal output from the timing pulse generation circuit 28.

In the above configuration, when necessary data is input from the key input unit 11, this input data is sent to the arithmetic circuit 13 via the buffer 12 and stored in the memory circuit within the arithmetic circuit 13.

Next, when the program start key of the key operator 11 is operated, a program start signal is sent to the arithmetic circuit 13 and the fixed program storage section 14 via the buffer 12. The programs are sequentially read out from the program storage section 14, and calculations are performed according to this program. The operation of the circuit 13 can be controlled.

When this normal arithmetic operation is performed, the gate circuit 18
is switched to the input terminal 17a, and the input data or calculation results are sent to the display register 16.

The data stored in the display register 16 is sent to the display section 20 via the decoder 19 and displayed.In the above state, if an error occurs at any of the error check points, the error is detected. Elements 22a, 2
2b... The error detection circuit 21 detects the sound of an error, and sets the error flip-flop circuit 26.

When the error flip-flop circuit 26 is set, the error indicator lamp 27 is turned on to display an error.

When the error detection circuit 21 detects the sound of an error, it sends it to the code signal sound calculation circuit 13 corresponding to the location where the error occurs.

When this arithmetic circuit 13 receives a signal from the error detection circuit 21, the address control circuit 15 first specifies a storage address for the error processing routine in the fixed program storage section 14.

By this address designation, the error processing routine is extracted from the fixed program storage section 14 and the error processing begins.

That is, when entering the error processing routine, the gate circuit 13
4. Switches from input terminal 17a to input terminal 17b, stops input of calculation-related data to display register 16, and clears data stored in display register 16.

At the same time, the error code signal sound sent from the error detection circuit 21 to the arithmetic circuit 13 is determined, and the display register 16 is predetermined by this error code signal.
A code signal tone corresponding to a specific numerical value, for example, "9" is set at a predetermined digit of , via the input terminal 17b and the gate circuit 18 gold.

The specific numerical value set in the display register 16 is sent to the display section 20 via the decoder 194, where "9" is displayed.

In other words, if an error occurs, the error indicator light 27
lights up and displays an error sound, and the display section 20
A specific numerical value is displayed in a predetermined digit determined in advance according to the location where the error occurs.

For example, when an error is detected by the error detection element 22a, the first digit of the display section 20 is displayed, and when an error is detected by the error detection element 22b, the display section 2 is displayed.
A specific numerical value is displayed in the fifth digit of 0.

However, when the operator
The location of the error occurrence is determined by the display state of 0, and when the cause of the error is removed, the error processing routine program advances to the next step, the flip-flop circuit 26 is reset, and the gate circuit 18 is connected from the input terminal 17b to the input terminal i7. a It is switched to flU and returns to the normal state.

In the above error processing routine, the data output sound of the key human power section 11 may be prohibited until the cause of the error is eliminated.

Even if the program key 4 is erroneously operated in the key manual section 11, an error is detected in the error detection circuit 21, and the error indicator light 27 is turned on in the same way as in the above case, and a predetermined digit on the display section 20 is displayed. A specific value is displayed.

In the embodiment described above, when the error detection circuit 21 detects the sound of an error, the display object 20 corresponding to the type of error is displayed.
However, the method is not limited to this method; for example, any error can be displayed in the first digit of the display unit 20, and the error code signal can be obtained in response to the error code signal corresponding to each error. The error type 4 may be performed by displaying a specific value.Also, in this embodiment, various basic control sounds of the arithmetic circuit 13 are performed in the fixed program storage unit 14, but the various control sounds are not limited to this. It goes without saying that the buffer 12 is not necessarily a necessary circuit, and that even if it is omitted, this invention can still be implemented in the same manner as with one circuit. Of course, various modifications can be made without departing from the gist of the invention.

Further, when an error occurs, the specific values to be displayed on the four display sections 20 are not limited to a few, but may be displayed in characters, symbols, and other parts such as segments of the display tube that constitute the display section 20.

As detailed above, according to the present invention, when an error occurs, the error indicator light kA lights up and a specific display 4 is displayed in a predetermined digit corresponding to the location where the error occurred in the data display section, so that one error The indicator light can sufficiently accomplish the purpose, and the area occupied by the error indicator light can be reduced by 4, thereby providing an error display device that is useful for miniaturization.

[Brief explanation of the drawing]

The figure is a block diagram of one embodiment of the present invention. 11...Key human power section, 13...Arithmetic circuit, 14...Program storage circuit, 21...
...Error detection circuit, 22a, 22b... ...
...Error detection element.

Claims (1)

[Scope of utility model registration request] The display part that displays processed data in the arithmetic circuit In a small electronic computer with a biased bias, there is an error detection circuit that performs four error checks to detect the error location and content sound and output it, and the error detection circuit lights up according to the error detection signal of this error detection circuit. an error display section, and a means and a metal fitting for discriminating the error code signal sound output from the error detection circuit and displaying a specific value of the error content in a predetermined digit of the display section in response to the location where the error has occurred. An error display device featuring gold.