JPS59195101A - Electronic scale - Google Patents

Abstract

PURPOSE:To enable display of a prescribed function scale by obtaining the scale pattern of an assigned function by the operation of a function scale assigning key and driving the display by the data written in a display register of the corresponding storage region according to said scale pattern. CONSTITUTION:The data inputted from a key inputting part 21 is fed to a control part 22. The part 22 outputs a control signal according to the input data and the operating condition in each part. More specifically, the control part applies to a +1 signal and a reset signal to an n-notation counter 23, a readout signal to a storage part 24 for scale pattern, and an operation timing signal to a display processing part 25 and a scale display part 7. A writing digit and a readout digit are assigned in an S register 26 by the counter 23. The data readout of the S register 26 is fed to the part 25 and a judgement circuit 27. The part 25 drives the part 7 so as to display the scale according to the content of a display register 28. The prescribed function scale is thus easily displayed by the simple key operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an electronic scale that displays an input numerical value or a numerical value obtained by calculation on a scale.

[Prior art and its problems]

An electronic scale configured to display the length by inputting a numerical value representing the length is generally known from, for example, Japanese Utility Model Application Publication No. 54-33749.

However, the above-mentioned conventional electronic scale only displays line segments according to input numerical values, and does not have a function to display a functional scale. Thus, in general, a functional scale, e.g. to
When creating a scale such as gx, the scale must be created by using logarithmic graph paper or by inputting data one by one and displaying a predetermined length, which is very troublesome.

[Purpose of the invention]

The present invention has been made in view of the above points, and an object of the present invention is to provide an electronic scale that can easily display a predetermined function scale with simple key operations.

[First Embodiment of the Invention] A first embodiment of the invention will be described below with reference to the drawings. First, the external configuration will be explained with reference to FIG. In the figure, 1 is a case body, and a scale part 2, a numerical display part 3, a keyboard 4, and a power switch 5 are provided on the top surface of the case body.

The scale section 2 is provided along one side edge of the case body 1, and consists of a scale section 6 and a scale display section 7. The scale section 6 has, for example, a scale of up to 150 scales printed on it, and the minimum scale is 1wn. Still, the scale display section 7 is constructed using, for example, a liquid crystal display element, and a linear segment electrode is arranged at the origin position, and 150 segment electrodes each having a length of one tone are arranged at the scale section. They are arranged linearly in parallel to 6.

Then, the scale section 2 is provided with rOJ at intervals of, for example, 50 mm.
, r50J, rlooJ.

It is numbered r150J.

The numerical value display section 3 can display, for example, an eight-digit numerical value, and the index display section 3a can display a two-digit index.

Further, the keyboard 4 includes numeric keys 11 and various function keys 12.

In addition to keys for specifying various calculations, the function keys 12 include, for example, a scale (SCALE) key 13 that displays the actual length on the scale display section 7, and a conversion key 14 that selects and specifies the function of the double function key.
, right shift key 15 and left shift key 16 to shift the origin of the scale, jog x scale designation key 17 (L
og 5cale), X2 scale designation key 1g (x2
Scale) etc.

Next, the structure of the electronic circuit provided in the case body 1 will be explained with reference to FIG. 2. Reference numeral 21 in the figure is a key manual section, and the key is constituted by a key 4.

The data input from the key human power section 2 is as follows:
It is sent to the control section 22. This control section 22 outputs control signals according to input data from the key human power section 21 and the operating status of each section. That is, the control section 22 provides a "+1" signal and a reset signal to the n-ary counter 23, a read signal to the scale pattern storage section 24, and an operation timing signal to the display processing section 25 and the scale display section 7. The scale pattern storage section 24 stores, for example, a log of 0 to 150 digits.
It consists of an x-scale noset turn register 24k and an x'' scale no-turn register 24B.The log'x scale/lean turn register 24A has a constant a value of "63" as shown in FIG. 3(a). "a log I" when
The scales and turns of J, r a tag 2 J, . . . are written in advance, and the value of

The scale pattern of X2 when rlJ, r2J, . . . is written in advance. The data read from the scale pattern storage section 24 is sent to the Sve star 26. This S register 25 has 5o-8n digits, and the write digit and read digit are specified by the counter 23. The data read from the S register 26 is then sent to the display processing section 25 and the judgment circuit 27.

The display processing section 25 includes a display register 28 configured with 0 to 150 bits, writes 1'' to the bit corresponding to the data sent from the S register 26, and according to the contents of the display register 28, the scale display section 7 Further, the judgment section 27 constantly judges whether or not the specified digit data read from the S register 26 exceeds r150J, and when it exceeds r150J, the judgment signal J is sent to the control section. Output to 22.

Next, the operation of the above embodiment will be explained. When displaying the scale of log x on the scale display section 7, press the key manual section 21.
Operate the togx scale designation key 17 in . By this key operation, the process shown in the flowchart of FIG. 4 is executed under the control of the control unit 22, and the scale of log x is displayed on a scale. Before any key operation is performed, blank code B is written in all digits of the S register 26, as shown in FIG. 5(1). In this state, when the log x scale designation key 17 is operated as described above, first the log x scale/? [a lo
A scale pattern of g x J is written into the S register 26 as shown in FIG. 5(2).

Thereafter, the counter 23 is reset by a signal from the control section 22 as shown in step fA2. This allows S
S in register 26. A digit is specified and its retained data “0”
” is sent to the display processing section 25 and the judgment circuit 27. At this time, the judgment circuit 27 determines the S value of the S register 26 as shown in Stella fA3. It is determined whether the data read from the digit is less than or equal to r150J, and the determination result is output to the control unit 22. S above. Since the content of the digit is "0" and is less than r150J, the process advances to step A4 and the S of the S register 26 is set.

"1" is written to the bit of the display register 28 corresponding to the value of the digit, that is, the O-th bit in this case. Next, as shown in Stella fA5, the count value of the counter 23 is set to "+1".
”, then return to judgment step A. At this time, counter 2
Since the value of 3 has been counted up to "1", the content of the S1 digit "19" is read from the S register 26 and sent to the display processing section 25 and the judgment circuit 27. Since the data held in the S1 digit of the S register 26 is less than r150J, the process proceeds to step A4, and u 1 n is written in the bit of the display register 2g corresponding to the value "19" in the S3 digit, that is, the 19th bit. Then, in step A5, the value of the counter 23 is increased to r+IJL, and then the process returns to step A3.

In the same way, the process for Stella f A3 to A is repeated,
"°1" is written into the bit of the display register 28 corresponding to the value of the Sn digit read from the S register 26. and,
When the above processing progresses and the data read from the S register 26 becomes larger than r150J, the judgment circuit 27 detects this state and outputs a judgment signal J to the control section 22. As a result, the process proceeds from judgment step A3 to step A, where the display processing section 25 drives the scale display section 7 to display according to the data set in the display register 280, as shown in FIG. 5(2).

Through the above processing, a scale for logx is displayed on the scale display section 7.

Further, when displaying the x2 scale on a scale, the x2 scale designation key 18 in the key input section 21 is operated. By this key operation, the 2nd turn of the x2 scale stored in the x2 scale e-turn renoster 24B is transferred to the S register 26.
After that, steps A2 to A6 in FIG.
The x2 scale is displayed on the scale display section 7 by the process shown in FIG.

In addition, when numerical data is inputted from the key input section 21, it is written to a numeric register (not shown) by the control section 22 and displayed on the numerical display section 3, and then the scale key 13 is inputted.
By such operations, the length corresponding to the set number data is displayed on the scale display section 7.

[Second Embodiment] Next, a second embodiment shown in FIG. 6 will be described. In the first embodiment described above, a scale/main turn storage section 24 is provided to store a predetermined scale pattern in advance, but in the second embodiment shown in FIG. A calculation storage section 31 is provided in place of , and the scale pattern is determined by calculation. The above calculation storage section 3
The device is internally provided with an m register 32 for assisting calculations, and performs predetermined calculations based on data and calculation instructions from the control unit 22. The arithmetic storage unit 3 has a judgment function to judge whether the data held in the m register 32 is “10” or more, or whether it is “100” or more, and sends the judgment result to the control unit 22. Output.

Next, the operation of the second embodiment will be explained according to the flowchart shown in FIG. In the key human resources department 2, togx
When the scale designation key 17 is operated, Stella fB,
As shown in FIG.
3 is set to "1", and "1" is written to the m register 32 in step B2. Next, proceed to STETSUNO B, and log from the control unit 22 to the calculation storage unit 3.
m operation instructions and A=63 data are sent. As a result, the calculation storage section 31 executes the calculation of "A-6Ogm", sends the calculation result to the S register 26, and stores the calculation result in the counter 2.
Write to the digit specified by 3. The symbol rmJ in the above equation is the value of the m register 32. Then Stella f
Proceed to step B, and the contents of the designated digit Sn of the S register 26 are r1.
It is determined whether or not it is less than 50J, and if it is less than r150J, the process proceeds to step B. In this Stella fB, the display register 2 corresponding to the value of the designated digit S of the S register 260
Input "1" to bit 8. Then Stella 7'B,
After increasing the value n of the counter 23 by r+IJ, the process proceeds to step B7, where it is determined whether the content of the m register 32 is greater than or equal to "10". As a result of this judgment, if the value of the m register 32 is smaller than "10", the content capacity of the m register 32 is increased by "1+1" in Stella fB, and then the process returns to step B.

Thereafter, the processes B and B8 are repeated in the same way, and the value of "AIItOgm" obtained by the calculation is written in the SL/register. Then, in step B7, when it is determined that the value of the m register 32 has become "10" or more, the stellar 7'
Proceed to Bll to determine whether the value of m is greater than or equal to r100J, and if it is smaller than rlooJ, step B. m in
Add “10” to the contents of the register 32 and proceed to step B3.
Return to Then, B until the value of m becomes equal to or greater than rlooj
3~B? +ll+81° processing is repeated, and when the value of m becomes r100J or more, the process proceeds to step 7°Bll, adds rlooJ to the contents of m register 32, and returns step fB3.
Return to The same process is repeated thereafter, and when the calculation result written in the S register 26 is r150J150J, the calculation process is ended and the process proceeds to Step B12, where the scale display section 7 is driven to display according to the contents of the display register 28.

Through the above processing, the same logarithmic scale as in the case of FIG. 5(2) is displayed.

FIG. 7 shows the operation when the Log x scale designation key 17 is operated, but when the x2 scale designation key 18 is operated, the x2 scale is calculated by the calculation in the calculation storage section 31 using the same process. The scale can be displayed.

In addition, in the above embodiment, the case where the log x scale and x2 scale are displayed on a scale has been explained, but in addition, for example, any function such as r f ( , variables may be sequentially input to a specified function and calculated, and the resulting data may be displayed as a scale.

In addition, the function specification is not limited to specific keys such as Roro Shita ■ Tsukasa, etc.
Specify the scale mode with the mode switch and
It may be specified by inputting a function key such as l. Furthermore, the interval between the scales can be arbitrarily set depending on the size of the scale display section 7.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to provide an electronic scale that can easily display a predetermined function scale with simple key operations.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a front view showing the external structure, FIG. 2 is a block diagram showing the structure of the electronic circuit, and FIG. 3 is a block diagram showing the structure of the electronic circuit. Figure 4 shows an example of scale pattern storage in the scale/turn storage section in Figure 2.
FIG. 5 is a flowchart showing the operation contents, FIG. 5 is a diagram showing key operations and corresponding register contents and scale display states, FIG. 6 is a circuit configuration diagram in the second embodiment of the present invention, and FIG. 3 is a flowchart showing the contents of the operation shown in the figure. 1... Case body, 2... Scale section, 3... Numerical display section, 4... Key date, 5... Power switch, 6... Scale section, 7... Scale display section , 11...
・Numeric keys, 12...Function keys, 13...
・Scale key, 17...Log x scale specification key,
18...X2 scale designation key, 21...key human power department,
22...Control unit, 24...Scale pattern storage unit, 25
...Display processing unit, 26...S register, 28...
Display register 1)

Claims (1)

[Claims] In an electronic scale that displays the length of input numerical data or calculated numerical data on a scale, a function scale designation key, a means for obtaining a scale pattern of a designated function by operating the function scale designation key, and a means for obtaining a scale pattern of a designated function by operating the function scale designation key; What is claimed is: 1. An electronic scale comprising: a display register in which data is written into a corresponding storage area according to the obtained scale/master turn; and a scale display section which is driven to display according to data held in the display register.