JPS5858704B2 - Calculator with item count - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a calculator with item counting in electronic desktop calculators, electronic cash registers, and the like.

2. Description of the Related Art Conventionally, for example, an electronic desktop calculator equipped with a printing function has been designed to store the number of additions and subtractions and print the number of additions and subtractions at the same time as printing the calculation results.

In this case, especially on a calculator with two integration memories,
A double item counting method is used.

This method, for example, counts the number of times the total key is operated to calculate the total of each item on each slip, and when six grand total keys are operated to calculate the total, the total number of times the total key is operated (the number of times the total key is pressed) is calculated. The number of sheets) is printed.

According to this method, when calculating a slip, if one slip has many items, the total number and number of items on one slip can be calculated by operating the total key ■, and the number of items can be calculated by operating the grand total key Th. The number of sheets and the total total are required.

However, in this case, if the total has already been calculated and entered for each slip, calculation for each slip is not necessary.

In addition, the slips are classified into several groups, and the interim total and number of slips (number of items) for each group, and the total total and total number of slips (
If you want to calculate the total number of items, in the conventional method described above, you have to add up the total number of slips when you get the interim total, and it is impossible to calculate them at the same time.

The present invention has been developed in view of the above points, and allows the number of slips and the total number of slips (number of repeated items) to be determined arbitrarily, and the optimal item count content can be selected depending on the type of calculation. The purpose is to provide a calculator with item counts that can be obtained.

An example of the present invention will be described below with reference to the drawings.

FIG. 1 shows an item counting circuit, and the path for normal addition is omitted to make it easier to understand the circuit operation of item counting.

In FIG. 1, reference numeral 1 denotes a key human power section. Data inputted by the key human power section 1 is sent to a Y register 3 via a gate circuit 2, and various calculation instructions are sent from the key human power section 1 to a control section 6. is input.

Also, 4 is a GT (grand total) register, and 5 is a T
(total) register.

The outputs of each of the registers 3 to 5 are transferred to the input side of the register through the gate circuit 7 and the gate circuit 2, which are controlled by a signal from the control section 6, respectively.

The stored contents of the Y register 3 are sent to the display section 8 for display, and are also sent to the printing section 9 for printing.

Furthermore, the outputs of the GTI/register 4 and the T register 5 are each applied to one input terminal of an AND circuit 10.11, and the output of this AND circuit 10.11 is passed through an OR circuit 12 to an input terminal of an adder circuit 13. added to a.

The other input terminal of the AND circuit 10 is given a control command outputted from the control section 6 to the output line 6a, and the other input terminal of the AND circuit 11 is given a control command outputted to the output line 6b. is given.

In addition, the output of the above output 16a is the output of the three-person AND circuit 1.
5 to the second input.

The output of the T register 5 is applied to the first input terminal of this AND circuit 15, and the mode designation switch 1 is applied to the third input terminal.
6, the "In signal is applied.

The third input terminal of the AND circuit 15 is grounded via a resistor 17, and has a 0'' signal level when the mode designation switch 16 is open.

Further, the output of the mode designation switch 16 is applied to an OR circuit 19 via an inverter 18.

This OR circuit 19 is further connected to the output line 6b from the control section 6.
A control instruction is given that is output to .

Its output is applied to one input terminal of AND circuit 20.

The other input terminal of the AND circuit 20 is supplied with the code signal Ill from the control section 6 via the output line 6c.

The output of this AND circuit 20 is the output of the AND circuit 15.
It is applied to the input terminal of the adder circuit 13 via the OR circuit 21 along with the output of the adder circuit 13 .

This adder circuit 13 performs an addition operation using data applied to input terminals a and b, and sends the addition result to the gate circuit 2.
When the registers 3 to 5 fall down, the signal is sent to the control section 6, and the next control operation is specified by the control section 6.

Next, the present invention, which has been completed as described above, will be described in detail.

When the calculation is performed with the mode designation switch 16 open, the printout is, for example, as shown in FIG. 2a.

That is, it is divided into two slips 31 and 32, and the first slip 3
1 has two items, and the second slip 32 has three items.

When the total key box is operated, the total and the number of items are printed on the left side of the total for each slip.

Next, when the grand total key 6 is operated, the total sum of the respective slips and the number of times the total key has been operated (number of slips) are printed.

Further, when the mode designation switch 16 is opened, printing is performed as shown in FIG. 2.

That is, it is divided into two groups 33 and 34, and the two items in the first group 33 are, for example, the slip 31.3 in Figure 2a.
Using the total value calculated in step 2, the total and number of items for the first group are printed using the total key ■.

The three items in the second group 34 each represent a total value, and the total and number of items in the second group are printed on the total key field.

Next, when the grand total key is operated, the total sum of the first group and the second group and the total number of items (total number of slips) are printed.

The operation of the main circuit shown in FIG. 1 will be explained below with reference to the flowchart shown in FIG. close.

Further, when the third input terminal of the AND circuit 15 becomes "099", the output of the inverter 18 becomes "111", and this "1P signal" is sent to the AND circuit 20 via the OR circuit 19.

When numerical data is input by key operation of the key input unit 1 when issuing a slip, this input data is set in the numerical value storage digit YVT of the Y register 3 via the gate circuit 2.

The numerical data stored in this Y register 3 is displayed on the display section 8.
is sent to and displayed.

Next, when an addition command, for example, is input from the key human power unit 1, the contents of the Y register 3 and the T register 5 are added in the adder circuit 13, as shown in step A of flow ① in FIG.
(This addition operation is a normal addition, and its path is not shown.) The addition result is stored in the numerical value storage digit TV of the T register 5.
Stored in T.

Next, proceeding to step B, the counter T in the T register 5 is
Ill is added to c.

That is, when the above step A is completed, the T register 5
At the timing when the contents of the counter Tc are read from the control section 6, the control portion ◆, that is, rTc+IJ, is sent to the output line 6b from the control unit 6.
The life◆! 1'' is output, and the gate of the AND circuit 11 is opened.

As a result, the contents of the counter Tc are applied to the input terminal a of the adder circuit 13 via the AND circuit 11 and the OR circuit 12.

Further, at this time, the control command is applied to one input terminal of the AND circuit 20 via the OR circuit 19, and therefore the "1" code signal applied to the other input terminal of the AND circuit 20 at this time is applied to the AND circuit 20. , are applied to the input terminal of the adder circuit 13 via the OR circuit 21.

As a result, the adder circuit 13 performs an operation of adding "+1" to the contents of the counter Tc, and the addition result is stored in the counter Tc of the T register 5 via the gate circuit 2.

Next, in step C, the input numerical data is printed.

The operation in the flow (2) above is performed until the total key field is operated.

For example, as shown in Figure 2a, the first key manual numerical data is "120J", and the next key manual numerical data is r140.
If an addition command is given at J, r120+J and r
140+J is printed, and r120+140
= 260J is performed, and the addition result is ``260J''.
” is stored in the T register 5.

Further, since the numerical values of the above two items have been input, the contents of the counter Tc of the T register 5 have become "2".

Next, when the total key box is operated in this state, the process proceeds to step D of flow 0 in FIG.

In this step D, the gates of the gate circuits 7 and 2 are opened in response to a command from the control section 6, and the contents of all digits TWT of the T register 5 are transferred to the Y register 3 via the gate circuits 7 and 2.

The data transferred and stored in the Y register 3, that is, the total value of each item "260J" and the total number of items "2" are displayed on the display section 8 as shown in step E, and the second The number of items is “2” as shown in figure a.
and the total value r260TJ are printed.

Next, the process proceeds to step F, where the output line 6a of the control section 6 becomes "1".
"The signal state is reached, and the counter GT in GT register 4
At the timing when the contents of the counter GTc are read out, the control unit 6 outputs a code signal "1" to the output line 6c, and the adder circuit 13 increments the contents of the counter GTc by 1+1.

Then, “GTc” outputted from this adder circuit 13
The addition result of +IJ is written to the counter GTc in the GT register 4 via the gate circuit 2.

Next, proceeding to step G, the contents of the numerical digit TVT of the T register 5 and the contents of the numerical digit GTVT of the GT register 4 are subjected to an addition operation of "GTvT+TVT" in the adder circuit 13 (route not shown), and the addition result is It is stored in the numerical digit GTVT of the GT register 4.

After that, as shown in step H, all digits T of T register 5 are
Write "0" to WT.

In other words, the contents of the T register 5 are cleared and the process ends.

Next, if the grand total key τ is not operated, the process returns to flow (2) and repeats the above-described operation.

As a result, the contents of the counter GTc of the GT register 4 are incremented by "+l" every time the total key is operated.

Here, when the grand total key
The contents of all digits GTwT of T register 4 are transferred to gate circuit 7.2.
The data is transferred to Y register 3 via .

Next, as shown in step J, the data stored in the Y register 3, that is, the total value for all items and the number of total key operations (number of slips) are sent to the display section 8 for display, and are also sent to the printing section 9. Then, as shown in FIG. 2a, the number of slips ``2'' and the total value ``6900T'' are printed.

Thereafter, as shown in step K, the contents of the GT register 4 are cleared, and all operations are completed.

Next, when the mode designation switch 16 is closed, the "In signal" is applied to the third input terminal of the AND circuit 15, and the output of the inverter 18 becomes 0.

The operation when the mode designation switch 16 is closed in this way is that step F only changes to step F' in FIG.
It is exactly the same as when 6 is open.

When the process advances from step E to step F', a control command is output from the control section 6 to the output line 6a and the T register 5
The contents of counter Tc and counter GT of GT register 4
The contents of c are added.

That is, when the mode designation switch 16 is closed,
A 1" signal is applied to the third input terminal of the AND circuit 15, and the output line 6a of the control section 6 becomes the 1" signal level, so that the gates of the AND circuit 10 and the AND circuit 15 are opened.

At this time, the output of the inverter 18 is 0'', the gate of the AND circuit 2o is closed, and the rlJ code signal output from the control section 6 to the output line 6a is not sent to the adder circuit 13.

By opening the gate of the AND circuit 10.15, the contents of the GT register 4 and the T register 5 are sent to the adder circuit 13, and the result of addition of the counters Tc and GT c is selected by the gate circuit 2 and the contents of the GT register 4 and T register 5 are sent to the adder circuit 13. Written to counter GTc of register 4.

That is, in this step F', the number of key manual input items up to that point is written into the counter GTc of the GT register 4.

Therefore, Grand Total Key II? is operated, the contents of the GT register 4 are transferred to the Y register 3 as shown in step ■ of flow ■ in Figure 3, and the total value and total items are transferred in step J as shown in Figure 2. The number (total number of slips) is printed.

Incidentally, the same purpose as in the above embodiment can be achieved even if the above step F is executed in flow ① of FIG.

That is, in the case of the normal printing operation shown in FIG. 2a, step F is set as shown in FIG. 3, and in the case of the printing operation shown in FIG. 2, step F is set during the flow [YES]. You can also switch as follows.

In addition, in the above actual case, the function of the circuit was changed by the mode designation switch, but the present invention is not limited to this, and it is also possible to have the above two functions independently and output one of the counts f directly by the mode designation switch. Furthermore, the output means may be only printing or only displaying, and various changes can be made without departing from the gist of the present invention.

As described above, according to the present invention, the mode designation switch is provided so that the printing mode can be switched and designated when operating the grand total key, so that the total number of items or the total number of items can be calculated in accordance with the contents of the slip creation. It is possible to provide a calculator with an item count that can select and print.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an item counting circuit which is an embodiment of the present invention, FIGS. 2a and 2b are diagrams showing printing examples in the same actual case, and FIG. 3 is a flowchart showing the operation contents of the same embodiment. be. 1...Key human power section, 3...Y register, 4...GT register, 5...-T register, 6...control unit , 8...display section,
9... Printing section, 13... Adder circuit,
16...Mode designation switch.

Claims (1)

[Claims] 1. Input means for inputting numerical information, total command information of the numerical information, and total total command information of the numerical information, and calculating means for performing calculations based on the input information of the input means;
a first counting means for obtaining the number of inputs of the total command information up to the time of inputting the total command information; a second counting means for obtaining the number of times of numerical information input until the time of inputting the total command information; a switching means for switching the output mode of the number of information inputs and the number of numerical information inputs; output information from the calculation means upon input of the total command information; and output information from the calculation means by the input of the total command information; A calculator with an item count that is characterized by an output means for outputting and more precautions.