JPS6221150B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information processing device such as an electronic desktop calculator, and particularly to a time information setting method for setting the time.

In conventional small electronic calculators with clocks that use numeric keys, hour/minute/second separator keys, time setting start keys, and time setting end keys to set the time, time information is displayed in the order of hours, minutes, and seconds, for example. is stored in the numeric information storage register (hereinafter referred to as the numeric register), and pressing the time setting end key is ignored until all the digits for hours, minutes, and seconds are finished, and after all the digits are finished, When the time setting end key was pressed, the contents of the numeric register were transferred to the clock information storage register (referred to as the clock register) and the time was set. However, in the conventional method, even when changing only the hour and minute areas in the clock register due to changes in time differences, etc., all settings for hours, minutes, and seconds must be made again. Not only was the key operation complicated, but there was also a delay in setting the time.

In view of the above, an object of the present invention is to provide a time setting method that can change any area within the clock register.

According to the present invention, a time information setting start key, an hour/minute/second separator key and a number key are used to specify whether the subsequent number corresponds to hours, minutes, or seconds in time information depending on the number of times the key is pressed. In the time information setting method in which the time is set by using When inputting to the numeric information storage register, there is a numeric position specifying means that indicates whether the information corresponds to hours, minutes, or seconds, and the hour, minute, and second separator key is pressed without being input. If the current time is set, the information corresponding to the number of times the hour, minute, and second separator key is pressed is set as time setting information, and if the hour, minute, and second separator key is pressed after the number is set, the content of the set number is set as time setting information. A time information setting method is obtained.

Next, the present invention will be explained in detail based on an example with reference to FIGS. 1 and 2. Prior to explaining FIG. 1, the timing pulse shown in FIG. 2 will be described. Considering that hours, minutes, and seconds are each made up of two binary coded decimal digits, both the numeric register and the clock register are made up of six digits. Therefore, there are timing pulses from T ₁ to _{T 6} that indicate which digit content is output to the output of each register, and when the timing pulse T ₁ has a logical value of 1 (hereinafter referred to as "1"), the register The content of the first digit is output in the output. Similarly, for T ₂ T _{3 .} . . T ₆ below, the contents of the 2nd, 3rd, 6th digit are output, respectively. Further, T _M1 and T _M2 in FIG _. 2 are signals generated from the transfer timing generator 4 based on the contents of the counter ₃ in FIG. "1" when "1"
Therefore, T _M2 is "1" over timings T ₅ and T ₆ .
becomes. T _M1 and T _M2 corresponding to when the counter contents become 1 and 2 are also shown in the figure. A method of generating T _M1 and T _M2 based on the contents of the counter 3 includes a method of decoding the contents of the counter 3 and generating them by AND-OR with a timing signal, which can be realized by known techniques.

The explanation will be continued with reference to FIG. The control signal generator 1 generates various control signals e~ as the arithmetic control progresses.
j is generated as necessary. Number key conversion device 2
converts the press of a numeric key to a numeric information key. As mentioned above, the counter 3 together with the transfer timing generator 4 constitutes a numerical position specifying device that generates the timings T _M1 and T _M2 . 5 is a reset flip-flop, and 6 is a register. Clock register 7 and the aforementioned timing T ₁
The lower part of the seconds information at T ₂ , the upper part of the seconds information at T ₃ , the lower part of the minutes information at T ₄ , the upper part of the minutes information at T ₅ . The lower part of the time information is T ₆ , and the upper part of the time information is
occurs in its output. Counter 3 is a one-second counter that counts the output of the clock register every second, and when not counting, the contents of the clock register are output as they are.

The display device 9 displays the contents of either the numeral register or the clock register based on the output of the flip-flop 5.

Prior to time setting, the time setting start key _K1 is pressed down. The signal from this key _K1 is signal line a
is input to the control signal generator 1 via the signal line g.
Set to "1". This signal g is introduced into the clear terminal of the counter 3, and the counter 3 is cleared and its contents become 0. Also, this signal is 1 second counter 8
The inverter output of this signal g is the other input of the AND gate 14 which has the output of the signal g as one input, and the inverter output of this signal g is the input of the 4-input AND gate 16 for feedback of the register. Therefore, the signal g is "1"
At this time, the output of the AND gate 16 becomes a logical value 0 (hereinafter referred to as "0"), and the contents of the clock register are transferred to the numeric register via the AND gate 14.
After this operation is completed, the control signal generating device 1 sets the signal line j to "1", the flip-flop 5 is set, and the true output Q becomes "1". Therefore, the other input of the AND gate 22 whose one input is the output of the digit register is the true output Q of the flip-flop 5, and the other input of the AND gate 23 whose one input is the output of the clock register. Considering that it is the complementary output of flip-flop 5, the output of the numeric register is AND gate 22 and OR gate 24.
The data is input to the display device 9 via the display device 9, and the displayed content becomes the content of the numeric register. When this numeric value key _K2 is pressed down, the signal of the numeric value key _K4 is input to the control signal generator 1 via the signal line d. At this time, the signal f which becomes one input of the AND gate 10 becomes "1".

One input of this AND gate 10 is the aforementioned signal T _M1 , and since the content of the counter 3 is 0, T _M1 becomes "1" at timing _T5 . The output of this AND gate 10 serves as an input to an AND gate 13 whose one input is the content of the numeric key converted into numerical information by the numeric key conversion device 2. Also, since the inverter output of this AND gate 10 is input to the AND gate 16 for numeric register feedback, the numeric key K ₄
Numerical information is input to the number register via the AND gate 13 at timing _T5 . In other words, the lower part of the time information has been replaced. Furthermore, since the output of the AND gate 10 is input to the delay type flip-flop 11 which has a one-digit delay, the flip-flop 11 is
It becomes "1" at T ₆ . The output of this flip-flop 11 is an input to an AND gate 15 whose one input is delayed by one digit by a delay type flip-flop 21 of the output of the register. The inverter output of this flip-flop 11 is input to the feedback AND gate 16, and at timing _T6 , the content appearing at the output at timing _T5 of the contents of the register is inputted via the AND gate 15. Input to the numeric register. When the numeric key _K4 is depressed one after another, numerical information based on the numeric key _K4 is input into the time information section of the numeric register.

After the necessary time information is input, when the hour, minute, and second separator key _K3 is pressed down, the signal of this hour, minute, and second separator key _K3 is input to the control signal generator 1 via the signal line c. The control signal generator 1 sets the signal line h input to the +1 terminal of the counter 3 to "1".
and increments the contents of counter 3 by 1. Therefore, after pressing down the hours, minutes, and seconds separator key _K3 , T _M2 becomes "1" at timing _T3 , so the contents entered are in the minute part of the time information in the same way as the numbers related to the time. is input. After that, when the time setting end key _K2 is pressed down, this key signal is input to the control signal generator 1 via the signal line b,
The control signal generator 1 sets the signal line e to "1".
This signal e is an input to an AND gate 12 whose one input is T _M2 . Since the content of the counter is 1, T _M2 is "1" from timing T ₃ to _{T 6} , and this corresponds to the time when information regarding hours and minutes appears in the output of the numeric register 6. . Therefore, the output of AND gate 12 is AND gate 1 whose one input is the output of register 6.
8, and the inverter output of the AND gate 12 is input to the AND gate 19 for clock register feedback, so information regarding the time portion of the contents of the numeric register 6 is input to the clock register 7.
will be forwarded to. After this, the signal i input to the reset terminal of the flip-flop 5 is set to ``1'', the flip-flop 5 is reset, and the output of the clock register 7, which is replaced by the numeric keys by the contents of hours and minutes, is input to the display device 9. becomes.

To replace only the minute-related part of the information in the clock register 7 using the numeric keys, press the time setting start key _K1 , press the hour, minute, and second separator key _K3 to increment the counter 3 by 1, and then This can be executed by pressing the numeric key and the time setting end key.

As described above, according to the present invention, information in any part of the clock register can be set using the numeric keys, and the present invention has a great effect in simplifying the setting of hours, minutes, and seconds. be.

In addition, in the embodiment of the present invention, a time setting end key is used, but after the time setting start key is pressed to start time setting, pressing the time setting start key is used as a function of pressing the time setting end key. It is also possible to do so.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a timing diagram used in the embodiment shown in FIG. DESCRIPTION OF SYMBOLS 1... Control signal generator, 2... Numerical key conversion device, 3... Counter, 4... Transfer timing generator, 6... Numerical register, 7... Clock register, 8... 1 second counter, 9...Display device.

Claims (1)

[Claims] 1. An instruction means for instructing the start of time setting; an hour, minute, and second division instruction means for specifying whether the subsequent numbers correspond to hours, minutes, or seconds in the time information;
It includes a number setting means, a number information storage means, and a time information storage means, and when the start of time setting is instructed, the contents of the time information storage means are transferred to the number information storage means, and the number is then set. If the hour, minute, and second separator indicating means is operated without changing the number, the information in the corresponding digit of the numeric information storage means is not changed, and only when the hour, minute, and second separator indicating means is operated after the number has been set, the above information is changed. A time information setting method characterized in that only an arbitrary digit is selectively changed by writing the contents of the set number into the corresponding digit of the set number information storage means.