JPS5920146B2 - Electronics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic device in which input numerical data is input as a reciprocal different from the reciprocal that is processed within the device, and the numerical data is processed.

A detailed explanation will be given below using time data as an example. Conventionally, when converting a time value using an electronic device such as an electronic calculator, calculation keys and memory keys had to be used.

In other words, when expressing 12:30 minutes 43.56 seconds in minutes, when calculating how many minutes it is, 12 Figure 60 □
A series of key operations were required: 360 43.56 60 Tomoe.

In view of the above-mentioned points, the present invention provides an electronic device that can perform conversion using simpler operations or procedures.

The present invention further provides an electronic device that converts units using a unit input instruction means.

For example, if a key is used as the instruction means, 12, 36, 43, etc.
By performing the key operation of 56■ amount, 7560726
This is to calculate the minutes. An embodiment of the present invention will be described below with reference to the drawings.

In Figure 1, 0 to 9 are numerical input keys ÷ H, M, and S are keys for indicating the units of time, hours, minutes, and seconds, respectively.
In addition, input instruction means such as four arithmetic operations may be added.

DR is a display register and STR is a seconds memory register. DIS
P is a display device for displaying information of register DR. M.U.
LTA is a converter that multiplies the information in register DR by 60. M.U.
LTB inputs information from register OR or converter MULTA into 6
This converter MULTA, MULTB is a converter that multiplies by 0.
Converts hours or minutes to seconds. C.O.
MV is a converter that converts the second information in the register STR into hours, minutes, and seconds. ADSB is an adder/subtractor for adding and subtracting the information in register STR and the information converted into seconds in register DR. Here, X and Y are input terminals. OIVA is register S
A divider that divides the TR information by 1/60. DIVB is a divider that divides the information in register STR by 1/3600. G1 is an AND gate for setting the flip-flop FG. G
2 is an AND gate for inputting the information in the register OR to the converter MULTA when the flip-flops FH and FG are set. G3 is flip-flop FM,
AND gate for inputting information in register DR to converter MULTB when FG is set. G4 is an AND gate for inputting information in register DR to OR gate R3 when flip-flops FG and FS are set. G5 is an AND gate for inputting the information in the register STR to the converter COMV when any of the keys H, M, and S is operated and the flip-flop FG is set. G6 is an AND gate for holding information in register DR when no key is operated. G7 is an AND gate for inputting information in register STR to OR gate R3 when flip-flop FS is set and flip-flop FG is set.

G8 is an AND gate for inputting the information in the register STR to the divider DiVA when the flip-flop FM is set and the flip-flop FG is set.
G9 is a divider DiVB when flip-flop FH is set and flip-flop FG is set.
AND gate to input, GlO is key H, M,
When any key of S is operated, register DR
AND gate for inputting the information to AND gates G2, G3, and G4. Gll is an AND gate that inputs a set signal of the flip-flop FG to the OR gate R1 when any of the keys H, M, and S is input. R1 is an OR gate for inputting the input signal of the numeric key and the output signal of the AND gate Gll to the reset terminal of the flip-flop FG. R2 is the output of converter MULTB and OR gate R
An OR gate for inputting the output of 4 to the input terminal X of the adder/subtractor ADSB. R3 is an OR gate for inputting the output of the converter MULTA and the output of the AND gate G3 to the converter MULTB. R4 is the input signal of the numeric key, AND gate G6, G7 divider DlUA, DiUBl converter COM
An OR gate for inputting V to the register DR, R5 is a flip-flop, and an OR gate for inputting each output signal of FH, FM, and FS to an AND gate G5.
R6 connects the key signals of keys H, M, and S to AND gate Gl,
G6, GlO, Gll, OR gate for inputting to OR gate R7. R7 is an OR gate for inputting the output signal of the OR gate R6 and the output signal of the numeric key to the AND gate G6 via the inverter 11. T is a signal indicating the end of computation when the computation is performed by inputting the H, M, and S keys. This resets the flip-flops, FH, FM, and FS. The operation of the above embodiment will be explained below.

When the numeric key 1.2 is input, it is reset by the AND gate G and information of 12 is stored in the register DR as shown in FIG. 4.

Next, when key H is operated, flip-flops FH and FG are
is set, and the information in register DR is passed through AND gate Gl.
It is multiplied by 60 by converter MULTA by O, G2, and converted into 43200 seconds by converter MULTB via OR gate R3. This converted seconds information is stored in the ORGATE R
2, the information in the register STR (although it is O because no information is input to STR) and the adder/subtractor ADSB
and 43,200 is accumulated in register STR. Furthermore, the information in the register STR is inputted to the converter COMV by the AND gate G5, converted from seconds to hours, minutes and seconds, inputted to the register DR'\ via the OR gate R4, and displayed on the DlS display device P. Flip-flop FH is reset by signal T. The information in the registers DR and STR in this case is shown in ◎ in FIG. Next 3
When the key is operated as ``6'', the information in the register DR36 is converted to 2160 seconds via the converter MULTB, and is added to 43200 in the register STR by the adder/subtractor ADSB, and 45360 seconds is stored in the register STR. Furthermore, the information in this register STR is inputted to the register DR via the converter COMV and displayed. Here, the flip-flop FM settings are the same as described above.

The information in the registers DR and STR in this case is as shown in FIG. Next, by key operation 43.56 (8), the second
As shown in Figure O, the register STR contains 45403.5
6, 12:36 minutes and 43.56 seconds are stored and displayed in the register DR.

next,? When the key is operated, the flip-flop FM is set, and since the flip-flop FG is set after the completion of the 43.56S key input, the flip-flop FG is set by the AND gate Gll and the OR gate R1.
G beam is set.

Furthermore, the information 45403.56 seconds in register STR (is input to divider DIUA by AND gate G8,
Here, 756.726 is multiplied by 1/60 and inputted to the register DR via the OR gate R4 and displayed on the display DiSP, and the flip-flop FM is reset by the signal T to complete the calculation. In order to show an example of converting data shown in hours, minutes and seconds to minutes, we have shown an example of operating key M, but if key S is operated, the data in register STR will be transferred to register DR through AND gate G7. So it can be displayed in seconds.

Similarly to the above, the hour unit can also be displayed by operating the key H.

In the above embodiment, an example of handling sexagesimal time data is shown, but it is also possible to use other unit systems, such as the following.

As described above, the present invention provides, for example, after one of the plurality of unit instruction means indicates the unit for the numerical value inputted from the input means, one of the plurality of unit instruction means subsequently specifies the unit. By providing a conversion means for converting the numerical value into the second unit when the unit is specified for the second time by the unit, the unit of the data can be easily changed by operating the unit input means. It is something that can be done.

[Brief explanation of the drawing]

FIG. 1 is a block diagram for realizing an embodiment of an electronic device according to the present invention. FIG. 2 is a diagram showing the operational relationship between key operations, registers, and flip-flops when time calculations are performed using the computer according to the embodiment of the present invention. H...Time designation key, M...Minute designation key, S...Second designation key, MULTA, MULTB, COMV...
・Converter, DiUA, DiUB...Divider, A
DSB...Adder/subtractor.

Claims (1)

[Claims] 1. An input means for inputting a numerical value, a plurality of unit indicating means for indicating the unit of the numerical value input by the input means, and a plurality of unit indicating means for indicating the unit of the numerical value input from the input means. When the unit is indicated for the second time by any of the plurality of unit indicating means after the unit is indicated by any of the unit indicating means, the numerical value is set to the unit for the second time. An electronic device having a conversion means for converting.