JPS59133401A - Electronic measure - Google Patents

Abstract

PURPOSE:To perform divided operation speedily and accurately by inputting and processing length and division length corresponding to the number of divisions, and displaying division points relating to arithmetic results on a scale. CONSTITUTION:An input by numeric keys 41 is stored in a numeric register 11 firstly. Then, when a length key is hit, its contents are transferred to a length register 10 and displayed on the length display part 31 of a numeric display part 3. When a division-number key is hit, a division-number register 12 fetches the numeric key input as the number of divisions from the numeric register 11 and stores it. A division-length register 13 is stored with division length obtained as the arithmetic result, and also fetches and stores the numeric key input from the numeric register 11 when an interval key is hit subsequently to the numeric key input. An arithmetic part 14 calculates the division length on the basis of the data inputted with the numeric keys 41 and an arithmetic key 42. A control part 15 performs various control necessary for arithmetic and display by an input from a function key 5.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention proposes an electronic ruler that allows line segments to be easily divided by inputting the length and the number of divisions thereof, or the division length (interval). Traditionally, when dividing a minute into equal intervals, the following procedure was used using a ruler.

■Measure the length l of the line segment using a ruler.

■If the number of divisions is a, calculate l/a.

■Place a ruler on the line segment and mark the dividing points for each l/a.

In the process of (■), there are two methods: finding an integer multiple of //a and sequentially placing the points with that value, and one method: picking up the scale by 1 / a sequentially from one end of the line segment or dividing point and moving to the next dividing point. There are two methods that can be used: 1.

Such conventional methods require time and effort not only for calculations but also for reading the scales, and are prone to errors due to unnecessary scales, especially when the dividing point does not fit on the 1W scale. There are some drawbacks, such as being confused about how to proceed.

The present invention solves such difficulties, and by inputting the length and the number of divisions, the division point corresponding to the division length, which is the quotient of these, is displayed on the scale on the straight line, so that the desired division can be immediately performed. The purpose is to provide an electronic ruler that enables

Another object of the present invention is to provide an electronic ruler in which the corresponding division point is displayed when the division length (interval) of the division is directly input.

EMBODIMENT OF THE INVENTION The present invention will be specifically explained below based on drawings showing embodiments thereof. FIG. 1 is a schematic perspective view of a ruler according to the present invention, FIG. 2 is a schematic plan view of a display section, and FIG. 3 is a block diagram showing main parts of an electronic circuit. The scale display section 2 is arranged in a straight line along the long side and the edge of the flat rectangular parallelepiped-shaped case l, and is inclined downwardly toward the end so that the end functions as a ruler. The scale display section 21d consists of a large number of elongated liquid crystal display segments arranged at a pitch of 1.5 cm, with a slightly longer segment arranged at a pitch of 5 baits, and a longer segment arranged at a pitch of 10 baits.

A numerical display section 3 using a liquid crystal display element is provided inside the scale display section 2, which displays input numerical values, division length calculation results, and 1. It is used to display the results of four arithmetic operations.

Vi setting key 41 on the top of case 1. Calculation keys 42, such as 10-. In addition to the clear key 43, a function key 5 unique to the product of the present invention is provided. Length key 51 A key to indicate that the number keyed in on the number key 41 before pressing the key is the length to be divided, division number key 52
is a key that indicates that the number entered before that key is the division number.

The interval key 53 is a key for instructing that the numerical value entered before the keystroke was entered in order to be displayed at equal intervals on the scale display section 2, and the key 54 is a key for instructing to display the scale. It is. Others 6 This is the power switch, which also turns on the power supply to the electronic circuit 1 from the battery stored in the case.

Turn off.

Next, the configuration of the electronic circuit inside the case 1 will be explained.

The input from the numeric key 410 is stored in the numeric register 11, but if the length key 51 is pressed after the numeric key 41, the content is transferred to the length register 10 and stored in the length register IO. The content is the length display section 31 of the numerical display section 3.
It is now displayed on the screen. Division number register 12
is a register which, when the division number key 52 is pressed following the number key input, takes in the input number key input as the division number from the numerical value register 11 and stores it. The division length register 13 stores the division length obtained as a result of the calculation, or stores the manual input of the numerical key from the numerical register 11 when the interval key 53 is pressed n after the manual input of the numerical key. It is a register.

The calculation unit 14 performs calculations similar to those of a general electronic desktop calculator based on data inputted from the numeric keys 41 and calculation keys 42, and also calculates division lengths. Control 1s15H7 Various controls necessary for calculation 1 display are performed by inputting from the action key 5. Scale storage unit 16V; is a register that stores data to be displayed on the j scale display area 2. This is the part of the other 32Vi numerical display area 3 that displays the number of divisions or the division length.

Next, the operation of the product of the present invention will be explained.

Operation example 1 When dividing 150 haze into 25 equal parts ■ Number key
[I Tomoe H mouth ■ Function key Length key 51 ■ Number key
mm ■Function key Division number key 52■Function key Display key 54Key operations are as described above, but first, the numerical value "150" input to the numerical register 11 by operating ■ and ■ is transferred to the length register IO. Sat
The control unit 15 recognizes that the input of the previous operation is a length, and the data “150” in the numerical register 11 is displayed on the length display unit 31 of the numerical display unit 3. is read into.

Next, by the operations of (2) and (2), "25" is input into the numerical value register 11, and then transferred to the division number register 12. It is also read into the arithmetic unit 14, and the calculation of 150÷25 is performed, and the quotient is stored in the division length register 13, and the length display unit 31 of the numerical display unit 3 shows “150” as the number of divisions/
"6" is not displayed on the division length display section 32 (see FIG. 2). The control unit 15 reads “6” from the calculation unit 14,
25 division points every 6 fl, that is, 6 wm, 12 m from one end of the scale display section 2.

The bit of the scale Ui section 16 corresponding to 18m...
Write 1”.

Next, by the operation (2), "1" is written in accordance with the stored contents of the scale mark 16, and the segment of the scale display section 2 corresponding to the next bit is lit.

Note that the arithmetic unit 14 converts the quotient #-i into an integer and outputs it, but if the quotient is smaller than the scale display interval, which in this example is IIal, the numerical display unit 3 is caused to display an error.

Just by keying in the length and number of divisions in one of the company's works, the division point determined by these quotients is the scale display part 2 of case l.
It will appear in Therefore, desired division is possible by aligning the scale display section 2 with the line segment to be divided and attaching appropriate marks according to the lighting segments.

(Leaving space below) Operation example 2 ■ Number key Rollo H times ■ Function key Length key 51 ■ Number key
Mouth ■ Function key Interval key 53 ■ Function key Display key 54 ■, ■ “150”
is read into the numerical register 11 and displayed on the length display section 31 of the numerical display section 31. Next, by operating ■ and ■, the control unit 15 recognizes that the input of the operation is the input of the length to be displayed at equal intervals, stores this "6" in the division interval register 13, and sets it as the number of divisions. /Display on the split display section 32. Then, by operating (■), the control ASLS stores data for lighting segments at intervals of 6 for a length of 150n from one end of the scale display section 2 into the scale storage section 16. As a result, the above-mentioned display is performed on the scale display section 2.

It should be noted that even when the operations ``■'' and ``■'' are omitted, the segment may be configured to light up at intervals of 6 baits over the entire length of the scale display section 2.

As described above, the electronic ruler according to the present invention is equipped with input means for length and division number, calculation means, and scale display means arranged on a straight line in relation to the length. , the division length is calculated according to the length and the number of divisions, and the division points according to the calculation results are displayed on the scale display means, and furthermore, a means for directly inputting the division length (interval) is provided. Since the position of the division point is displayed on the scale display means, the division work that was previously done with a ruler can be done extremely quickly and accurately, freeing you from the tedious work of reading the scale, and The present invention has excellent effects such as eliminating erroneous division due to mental calculation errors. It goes without saying that the present invention can be implemented as an addition to an electronic desktop calculator as in the above-described embodiment, or as an independent device.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a schematic perspective view of the product of the present invention, FIG. 2 is a schematic plan view of the display section, and FIG. 3 is a main part of the electronic circuit. It is a block diagram. 1... Case 2... Scale display section 3... Numerical display section 5... Function key 41... ft & key 14... Arithmetic section 15... Control section patent applicant Sanyo Electric Co., Ltd.

Claims (1)

[Scope of Claims] 1. It is equipped with means for inputting the length and the number of divisions, a calculation means, and a scale display means arranged on a straight line in relation to the length, and the input means for inputting the length and the number of divisions. Calculate the corresponding division length,
An electronic ruler characterized in that the dividing point according to the calculation result is displayed on the scale display means. 2. It is equipped with an input means for inputting the number of divisions per length and the division length, a calculation means, and a scale display means arranged on a straight line in association with the length, and the calculation means inputs the input length and division number. The electronic ruler is characterized in that it calculates a mental division length according to the calculated division length, and displays the division point according to the calculated division length or the position according to the input division length on the scale display means.