JPS5819077B2 - calendar calendar - Google Patents

Description

[Detailed description of the invention] The present invention relates to a calendar watch.

Traditionally, electric clocks have been equipped with a calendar for one month, and are useful when making plans for the next day, for example. A few days.

Since the next month is next month, the calendar does not display the above-mentioned convenience.

The present invention, in a calendar watch, controls the mode of displaying the week of the month in relation to the display of the day, so that, for example, at the end of the month as described above, the calendar for the beginning of the next month is displayed. Accordingly, this invention was made in an attempt to provide a new calendar watch that does not have the above-mentioned drawbacks.

The present invention will be explained in detail below using examples shown in the drawings.

FIG. 1 shows a display board according to an embodiment of the present invention.

Liquid crystal is used for these displays, and 54 is a time display section, 55 is a day display section, 56 is a month display section, and 57 is a day display section (for example, a Sunday display section).

The numbers "1" to "31" in the date section 55 are fixedly displayed.

From this dial, we can see that the current time is 12:34 on March 23rd, and since the 22nd is a Sunday, today is Monday. Since we know that next week's Sunday and the next week's Sunday will be the 29th and the 5th of next month, we can know the calendar for this week and the two weeks before and after.

However, in the above explanation, 1st to 7th, 8th to 14th, 1st
The 5th to 21st and 22nd to 28th are treated as one week, and the 29th, 30th, and 31st are considered to be one week even though they have fewer days.

In this embodiment, for example, when the date is 1238J, "23rd" belongs to the 4th line (4th week) of the day display section 55, so the 5th line (5th week) and the 1st line ( 1st week), that is, the 29th, 30th, 31st, and 1st to 7th display the calendar from the 23rd of this month onwards, and the 2nd line (2nd week) and 3rd line (3rd week)
That is, from the 8th to the 21st, the calendar of the month before the 23rd is displayed.

In other words, from the 8th to the 31st, this month's calendar is displayed, and from the 1st to the 7th, the calendar for next month is displayed.

Here, even if the date changes from "23rd" to "28th", the day display section 55 changes according to the date, but the week of the week display mode remains the same.

The date changes from “28” to “29”, that is, the fourth line
When the display changes from ``week'' to the 5th line (5th week), the Sunday display in the 2nd line changes from ``8th'' to ``12th'' by 4 pips to the right.

Now, when the date changes to the 5th line (5th week), the 1st and 2nd lines, 1st to 14th, will show next month's calendar.
On the 3rd, 4th, and 5th lines, that is, from the 15th to the 31st, today's calendar is changed to a hailstorm display mode.

Similarly, the date is changed from "131st" to "1st" (that is, the first line (if changed, the day of the week display on the third line is shifted 4 bits to the right from "15th" to "19th"). will be displayed on Sunday.

In this way, in this embodiment, the line next to the line to which the display day belongs and the next line display the calendar after the display part, and the previous line and the previous line display the calendar before the display part. .

In this way, the day of the week display precedes the display by two weeks, so the number of bits to shift when the day of the week display changes is determined by the number of days in the current month when changing the day of the week display on the first and second lines.
Also, when the third to fifth lines are changed, they are made according to the number of days in the previous month.

Next, a specific circuit configuration for realizing the above operation will be explained using FIG.

1 is a reference pulse generator, 2 is a frequency divider, and 2a is the output of the frequency divider, which is an IHz signal.

3 is a second counter, 4 is a minute counter, 5 is an hour counter,
6, 7, 8, 9, and 10 are decoders for seconds, second tosa, minute tosa, minute tosa, and hour decoders, respectively.

The times counted by the minute counter 4 and the hour counter 5 are displayed on the time display section 54 via the decoder and the mode switching circuit 11 as shown in FIG.

Furthermore, by switching the mode switching circuit 11, minutes and seconds can be displayed on the time display section 54.

The output of the hour counter 5 is transmitted to the day counter 14, which is a 7-bit shift register, and the reset output 14a of the day counter 14 is transmitted to the row counter 15, which is a 5-bit shift register. The day to be displayed is selected and displayed from the day display section 55 arranged in a 7×5 matrix via the decoder 16 and the row decoder 17.

Reference numeral 52 denotes a month counter that counts a force signal 21e, which will be described later.The contents of the month counter 52 are displayed on a month display section 56 via a month decoder 53.

Reference numerals 12, 13, 20, and 51 are minute, hour, day, and month fast-forwarding circuits, respectively, and switches S2. S3,84. S5
Fast forwarding is performed by setting the logical value 'lO'.

The above circuit is well known.

Next, we will move on to an explanation of the circuit related to Sunday display. This circuit includes a Sunday display correction circuit 18, a Sunday display control read-only memory (hereinafter simply referred to as Sunday ROM) 21, and gates 22, 23, 24, 25 degrees 36, 37, 38, 3.
9, 40, or gate 26° 31.32, 33, 3
4,35 inverter 27° 7-bit shift register 41
, 42, 43, 44° 45, driver 46, 47, 48
, 49, 50° 4-bit shift register 28.5-bit shift register 29, and 6-bit shift register 30
It becomes more.

The Sunday ROM 21 outputs a month-end signal 21e according to the number of days in each month, and also changes the day of the week display when the line to which the displayed date belongs changes.

The number of bits to shift the Sunday display differs depending on the number of days in each month, but as mentioned above, the day of the week display in this embodiment is changed two weeks before the displayed date, so the number of bits to shift depends on the number of days in each month. When changing the day display on the 1st and 2nd lines, the number of days of this month is used, and when changing the 3rd to 5th lines, the number of days of the previous month is used.
The number of days in a month is memorized with a two-week delay.

The memory in memory device 21-1 is delayed by two weeks, so at the end of the month, the number of days in this month will be remembered.

The signals 21a, 21b, and 21c become 'lO'' or D1m according to the contents of the memory 21-1, and in combination, the contents of the memory 21-1 become 28, 2, as described below.
9. Tell them it's the 30th or 31st.

These signals 21a, 21b, 21c are the first row signal 15a, second row signal 15b, etc. of the row counter 15.
The rising edge of the fifth row signal 15e is detected and outputted from the Sunday ROM 21 as a signal 28a.

It is reset by 29a and 30a.

The shift registers 28, 29, and 30 are for counting four, five, and six pulses, respectively, for shifting the day of the week display.

Row signals 15a, isb, 15c. 15d and 15e change the day of the week display two weeks in advance of the date as described above, so the 7-bit shift register 43 is shifted by two weeks.
, 44 , 45 .

Each AND gate 38°39. leads to 41.42.
40, 36, and 37.

Further, the signal 2b is a pulse for changing the day of the week display with a frequency of 64 Hz, for example, taken out from the middle of the frequency divider 2.

The Sunday ROM 21 uses the memory 21-1 to detect the number of days this month ends, detects a change in the month based on the row signal 15e and the output of the day counter (not shown, but is input), and outputs the power signal 21e. Output.

The month□ signal 21e is input to the month counter 52 as described above, and also resets the row counter 15 and the day counter 14 via the gate 19 to set the day display to "1st". do.

The output signals 21a, 21b, 21c of the Sunday ROM 21 are output by detecting the rise of the dip signals 15a, . At that time, the signals 21a and 21b.

In the order of 21G, n 11 n , o It M 11 ,
3o When it is a, it is 'l"O""0", and when it is the 29th (corresponding to February in a leap year), it is 100allllO1+, 2
On the 8th, l On n O*“0′.

These signals 21a, 21b, and 21c open and close the AND gates 22, 23, 24, and 25, and one of the shift registers 28, 29, and 30; this signal 2b is input, and the output 28a of the shift register 28, the shift register 29 output 29a or shift register 30 output 30
Resets the Sunday ROM by a and sends signals 21a and 21b.
Or cut off the output of 21C.

Assuming that the current date is November 7th (1972), the day and Sunday display sections 55 and 57 will show the day display as "7th" and the Sunday display as "3rd" and "10th" as shown in Figure 3. ” “17th” “127th”.

The fourth and fifth lines show the calendar for the previous month (October), so the Sunday indicator lights up on the ``27th''.

When the date changes to the 8th, the Sunday ROM 21 detects the rising edge of the signal 15b and outputs the signal 21a.

21b and 21C are output, but the contents of the memory 21-1 (which contains last month's memory) is that the number of days in the month is 31, so the signals 21a and 21c are 1 n.

The signal 21b is "01".

Therefore, the signal 21a turns on the AND gate 24, and the signal 21c turns on the AND gate 22.
The 64Hz signal is applied to the 4-bit shift register 28, and when a signal 28a is output from the shift register 28, the shift register 28 is reset by this signal and the signal 21a is output.
, 21b, and 21c are both ll0l+, so the signal 2b
The four pulses output from AND gates 36, 37 . ..., as reported in 40.

By the way, the outputs 15a and 15b of the current row counter 15
, +++, 15e, only the output 15b is 1#, so only the AND gate 39 among the AND gates 36, 37°..., 40 can pass the above four pulses, and the 7-bit shift is performed through the AND gate 39. The memory in the register is shifted by 4 bits, and the display of the 4th week in the Sunday display section 57 is shifted to the right by 4 bits via the driver 49, so the Sunday display of "27th" in Fig. 3 disappears, and the Sunday display is displayed on r24BJ. be done.

Now, the calendar for the 4th week changes from last month's display to this month (November)
The display changed to .

That is, November 24th is a Sunday, and November 25th is a Sunday.
Days are known as Mondays, November 26th as Tuesdays, etc.

The contents of the memory 21-1 are as follows: When the signal 15c rises, the date is "
"14th" changes to "15th" and after the Sunday display is changed as described above, it is rewritten to this month's memory.

Also, the contents of memory device 21-1 are not February, but a small month (30
5-bit shift register 29 when the week changes when
In the same manner as above, five pulses are emitted by the AND gates 36, 37 . . . 40 is similarly applied, and when the content of the memory device 21-1 is February (29th) of 2009, the 6-bit shift register 30 is applied.
As a result, six pulses are emitted, and the memory 21-1
If the content of February (28th) is not Junnen, there will be no pulse.

In addition, by shifting the 5-bit shift register 18-1 inside the Sunday display correction circuit 18 with the switch S7 to select the intended week, and applying several pulses to the switch S6, the Sunday display of the above week can be changed by the above number of pulses. Since the date can be shifted, the Sunday display can be corrected.

By shifting the position of the Sunday display of each week according to the date display, the calendar watch of this embodiment can tell the calendar of the week including the displayed date and the two weeks before and after this week.
This is an extremely convenient calendar clock that allows you to always read the calendar for the preceding and following days, even at the beginning and end of the month.

In this way, the calendar watch of this embodiment shows the calendar for the two weeks before and after the displayed week.
It may also be possible to show the calendar of the week, or the previous three weeks and the next one week.

FIG. 4 shows another embodiment of the invention.

In this figure, there are two day display sections; 57-1 is, for example, a Sunday display section, and 51-2 is, for example, a Wednesday display section.

For example, the day display portions 57-1 and 57-2 may be configured to display characters such as "D", "W", "Sun", and "Wed".

The Wednesday display section 57-2 should always be displayed at a position 3 bits ahead of the Sunday display section 57-1.

Also, signals 15a, 15b, 15d. 15e, respectively.

If 57b, 57d, and 57e are provided as shown in FIG. 4, for example, in this figure, since the displayed date is "23rd", the fourth over signal 15d is "1" and the moon boundary representation part 15d is It is easy to understand that the first week is next month's calendar, but the other weeks are this month's calendar.

FIG. 5 shows yet another embodiment of the invention.

The display board in this figure shows that the current time is 5:30 on November 10th, and also the "1st" and "8th" of this month (November).
"15th""22nd" and "25th" of last month (October)
"Sunday" is displayed as Sunday.

Although the time display board in this figure is a digital display, it may of course be an analog display.

Even if the dates are arranged in a circle like this, you can treat each month as 5 weeks, considering the 7 days as 4 weeks and the 29th, 30th, and 31st as one week. In this example, 30 days are divided into 5 lines of 6 days each. and specially include the 31st in the 5th line.

Since the day currently displayed is the 10th, it is included in the second line, so the first to fourth lines are the current month's calendar, and the fifth line is the previous month's calendar.

The main part of the configuration example of this embodiment is shown in FIG.

The output of the reference pulse generator 1 is frequency-divided and transferred from the hour counter 5 to the day counter 14-, which consists of a 6-bit shift register.
A reset signal 14-1a of the day counter 14-1, which is input to the line counter 14-1 and outputted every six days from the day counter 14-1, is input to a row counter 15-1 consisting of a 6-bit shift register.

The Sunday display circuit including the Sunday ROM 21 is the same as in the previous embodiment, but the first to fourth lines (corresponding to "1st" to "24th") of the Sunday display section 5T are Since a row consists of 6 bits, when the Sunday position is, for example, the 7th bit of the 7-bit shift register 41, the 1st
Sunday is not displayed on the first line.

In other words, it can be seen that there is no Sunday between "1st" and "6th".

The fifth line contains ``31st'', so there are 7 bits.

If configured as in this example, the date displayed on the calendar (
The number of days before and after the displayed date (November 10 in FIG. 5) are almost the same (from October 25th to November 24th in FIG. 5).

As described in detail above, the present invention provides an extremely convenient calendar watch that eliminates the inconvenience caused by switching the calendar display at the turn of the month.

[Brief explanation of drawings]

FIG. 1 is a front view of a display unit of an embodiment of the present invention, FIG. 2 is a circuit diagram of the embodiment of FIG. 1, FIG. 3 is a diagram explaining the display mode of the embodiment of FIG. FIG. 4 is a front view of a display unit according to another embodiment of the present invention, FIGS. 5 and 6 are diagrams of still other embodiments of the present invention, FIG. 5 is a front view of a display unit, and FIG. 1 is a diagram showing the main part of the circuit. 11: Reference pulse generator, 2: Frequency divider, 3: Second counter, 4: Minute counter, 5: Hour counter, 14: Day counter, 15: Week counter, 15a, 15b...15
e: 1st week, 2nd week, 5th oversignal, 1
8: Sunday display correction circuit, 19 Nior gate, 21: Sunday display control read-only memory, 21-1: Memory device, 2
2, 23, 24, 25: AND gate, 26: OR gate, 27: Inverter, 28. 29, 30: Shift register, 31, 32° 33. 34, 35 NOR gate, 3
6, 37, 38° 139.40: And gate, 41,
42,43°44.45. near-bit shift register,
52: Month counter, 54: Time display section, 55: Day display section, 56: Month display section, 57: Day of the week display section.

Claims (1)

[Claims] 1. Divide the frequency of the reference 7 pulses, measure the time, and display the time. It also includes a calendar that displays whether the date that corresponds to at least one day of the week among the fixedly displayed dates of the month falls on the corresponding day of the week, and also displays whether the displayed day corresponds to the date of the month. In a clock, one month's date is divided into 2j blocks in relation to the day display, and the block containing the above day display displays the current month's day of the week, and the other blocks simultaneously display the next month's or last month's day of the week. A clock with a calendar, characterized in that it is equipped with a means for