JPH0390888A - Analog electronic watch - Google Patents

Abstract

PURPOSE:To display AM/PM at all times without an increase in parts and restrictions on design by controlling data wheel or day wheel written with the characters or marks to indicate AM and PM by a motor to be exclusively used. CONSTITUTION:An integrating circuit 1 drives a 1st motor 5 to operate an hour and minute (second 0 hand 7 and to simultaneously count the hour, the minute and the second at every specified period. The circuit controls a 2nd motor 2 according to the control of the count and displays the data 43 or day of the week 42 and the AM/PM via a 2nd wheel train 3. Namely, the characters 44, 45 or the marks 46 to indicate the AM/PM are written before and after the data 43 or day of the week 42 of the data wheel 41 or the day wheel 40. The characters or marks are displayed like a display sample 1 if the time to be displayed is AM and like a display example 2 when the time is PM. The specifications which are hereto fore difficult to be realized by the restriction on the design of the AM/PM, for example, specifications, such as alarm, world time and perpetual calendar, are easily realized.

Description

DETAILED DESCRIPTION OF THE INVENTION [6 Fields of Industrial Application] The present invention relates to an analog electronic timepiece having a date dial or a day dial.

[Summary of the invention]

The present invention is an analog electronic watch in which the date wheel or day wheel is driven by a dedicated motor, in which letters or marks indicating AM and PM are written on the date wheel or day wheel, and the date dial or day wheel is driven by a dedicated motor. By doing so, it is possible to always display morning/afternoon without increasing the number of parts or restricting the design.

[Conventional technology]

FIG. 3 is a block diagram showing a first conventional example for displaying AM/PM in an analog electronic watch. One motor 5 moves the hour, minute (second) hands 7, and the AM/PM hand 8 indicates AM/PM through a gear train, and the date wheel or day wheel 4.
is driving. The AM/PM hand 8 may be a hand that indicates time in a 24-hour system.

There is also a method of changing the gear ratio of the hour hand of a normal analog clock to make it a 24-hour clock to indicate AM/PM.

FIG. 4 is a block diagram showing a second conventional example for displaying AM/PM in an analog electronic watch. AM/
A dedicated motor 2 for moving the PM hand 8 was newly set up, and an attempt was made to operate it independently.

[Problem to be solved by the invention]

In the case of the first and second conventional examples, AM/PM needle 8 or 24
The presence of clock hands inevitably imposes design constraints, making it impossible to create a simple design similar to a normal analog clock.

Furthermore, when placing the AM/PM hand 8 etc. in the center, there are a total of 4 hands in the center, including the second hand, minute hand, hour hand, and AM/PM hand 8, so the height of the hands will inevitably be high and the hands will overlap. It was especially difficult to read the time when the clocks overlapped.

Furthermore, in the case of the first conventional example, when displaying other time information (alarm time, time in another city, etc.) due to a mode change, etc., the AM/PM hand 8 is required to move the hand to that point. It was taking twice as long as usual.

Also, if the 24-hour clock hand is used instead of the regular hour hand, the design will be relatively simple, but for those of us who are accustomed to 12-hour analog clocks, 24-hour analog clocks are extremely difficult to read. It was something.

To provide an analog electronic watch that indicates time, etc. with hands according to the present invention, which can always display AM/PM without increasing the number of parts or design constraints, and lengthening the hand movement time until displaying other time information by changing the mode, etc. The purpose is to obtain an analog electronic clock without

[Means to solve the problem]

In order to solve the above-mentioned problems, in the present invention, letters or marks indicating AM and PM, etc. 44.
45 or 46, or add an AM/PM wheel 8 or AM/PM hand 8 that rotates through the wheel train with the date wheel or day wheel 4, and drive the date wheel or day wheel 4 with the dedicated motor 2. , the dedicated motor 2 is controlled by the integrated circuit 1, and the AM/
It was configured so that it could be displayed in the afternoon.

[Effect]

Characters or marks indicating AM and PM according to the present invention 44
．． 45.46 is written on the same side as the day 43 or day 42 of the date wheel or day wheel 4. 0 is written on the date wheel or day wheel 4 in the 0 window or day window on the dial of the clock. day 43
Alternatively, characters or marks 44, 45, 46 indicating morning and afternoon are displayed at the same time as day 42.

If necessary, you may write letters or marks indicating AM and PM near the 0 window or day window on the dial.
Apart from the window and day window, there is also a window that only shows AM/PM (hereinafter AM/PM).
Another method of displaying AM/PM according to the present invention is to connect the wheel train of the same series as the wheel train connected to the date wheel or day wheel 4, and set the date wheel or the day wheel. AM/PM wheel or AM/PM hand 8 rotating in 1:1 correspondence with day wheel 4
You can also display AM/PM using .

The date wheel, day wheel 4, or AM/PM wheel 8 is driven by a dedicated motor 2 via a wheel train. Calculated from the number of motor steps for one day calculated from the gear train ratio from the dedicated motor 2 to the date wheel, day wheel 4, or AM/PM wheel 8, and the position where letters or marks indicating AM/PM are written. The number of steps for switching from morning to afternoon is stored in advance in the integrated circuit l, and the dedicated motor 2 is controlled as necessary. If the number of steps for switching to is n steps, P M during the night
ll: When the day changes from 59 to 12:00 AM, rotate the dedicated motor 2 by (m-n) steps, and when the day changes from 59 to 12:00 PM, rotate the dedicated motor 2 by n steps. good.

In addition, in order to automatically adjust the end of the month when AM/PM is displayed on the date wheel 41, only step (2m-n) is required from the end of the month (excluding February) to the 1st of the next month. If you want to display other time information (alarm time, time in another city, etc.) using the hour, minute (second) hands, just rotate the dedicated motor 2. good.

〔Example〕

FIG. 1 is a first block diagram showing the present invention. The motor 5 shown in FIG. 1 moves the hour, minute (second) hands 7 via the first wheel train 6, and 2 drives a date wheel or day wheel 4 via a wheel train 3. The integrated circuit 1 drives the first motor 5 at regular intervals to move the hour, minute (second) hands and at the same time count the hours, minutes, and seconds. The following two methods are known for making the hours, minutes, seconds, etc. counted by the "same cycle of integration" coincide with the position of the hands of the hour, minute (second) hook 7. Set the 1-point needle positioning state (hereinafter referred to as match mode with O), and set the needle position to a predetermined position in 0 match mode (
For example, the user sets the watch to the 12 o'clock position before using the watch. In this method, the integrated circuit 1 must always count the positions of the hour, minute (second) hands. In other words, each time the first motor 5 is driven, the contents are +1 or -1 (when reversed), and the other is hours → (seconds).
This is a method of additionally setting the second position W of the hands and a detection means to detect the position of the hands. In other words, the position of the needle is detected using optical sensors, magnetic sensors, and electrical contacts. *If you only want to be able to display AM/PM on the date wheel or week wheel, the hour hand should be 12.
It is only necessary to detect that the hour position has passed, but the AM/PM display of the present invention does not only display AM/PM, but also enables AM/PM display, allowing you to display 24-hour alarms, world time, etc. One major effect is that NF can be realized more simply. To realize these, even if a hand position detection means is provided, the integrated circuit 1 must count the position of the hour, minute (second) hands between detections, similar to the O-match mode method. .

According to the count contents of the integrated circuit l explained above, the integrated circuit 1 controls the second motor 2 to
Show afternoon. As in the case of the hour, minute (second) hands 7 described above, the 0 is set to match the date, week, and AM/PM counts counted by the integrated circuit 1 with the position of the date wheel or day wheel 4.
It is necessary to set the mufti mode or vehicle position detection means. FIG. 1 shows the case of O-match mode.

FIG. 2 is a second block diagram showing the present invention.Similar to FIG. Motor (dedicated motor) 2 is the second
AM/PM wheels or a total of eight wheels are driven through a third wheel train 3, and a date wheel or a day wheel 4 is driven through a third wheel train 9.

Integrated circuit 1 operates in the same manner as in FIG. In the case of Figure 2, the number of parts increases compared to Figure 1, but the AM/
There is an advantage that the PM wheel or AM/PM hand 8 can be freely placed within the watch.

FIG. 5 shows a first embodiment of the day wheel according to the present invention. Day wheel 40 has AM mark 44 and PM mark 4 before and after day 42.
5 is entered, and if the time to be displayed is in the morning, the day 42 and AM mark 44 will be displayed from the day window as in display example 1, and if the time is in the afternoon, it will be displayed as in display side 2. Ru.

FIG. 6 shows a second embodiment of the day wheel according to the present invention. Day wheel 40 has AM mark 44 and PM mark 4 on the left and right of day 42.
5 is entered, and if the time to be displayed is in the morning, the day 42 and AM mark 44 will be displayed from the day window as in display side 1, and if the time is in the afternoon, the PM mark will be displayed as in display example 2.
The mark points to the letters PM on the dial.

FIG. 7 shows an AM/PM mark 46 written above and below the day 43 on a 0 day indicator 41, which is a second embodiment of the lead indicator according to the present invention. As shown in side 1, the day 43 and the AM/PM mark 46 are displayed from the 0 window, and the AM/PM mark 46 points to the letter AM on the dial.If the 0 time is in the afternoon, as shown in display side 2, A PM mark 46 points to the letters PM on the dial.

FIG. 8 shows a second embodiment of the date wheel according to the present invention, in which a day 0 wheel 41 has an AM mark 44 and a PM mark 45 written on the upper right and lower left of the day 43, indicating that the time to be used for display is AM. If so, the day 43 and AM mark 44 are 0 as shown on the display side l.
If the 0 time displayed from the window is in the afternoon, the PM mark 45 is displayed from the 0 window as shown on display side 2.

FIG. 9 is a plan view showing the connection between the head wheel and the dedicated motor according to the present invention.
The head wheel and day wheel used in ordinary analog watches are mechanisms that operate intermittently every day, but the head wheel and day wheel of the present invention can rotate continuously through the wheel train 3 of the present invention. Since the day wheel and the day wheel have a mechanism as shown in Fig. 9, the date wheel and the day wheel 4 correspond one-to-one to the rotation of the dedicated motor 2 and can operate continuously. The dedicated motor 2 takes 50 steps (rr
+=50) When the second gear train 3 is set to the speed reduction ratio to be rotated, it is possible to control the head wheel with an accuracy of 360' + 31' = 0.13 degrees.
The number of steps (n steps) for switching from morning to afternoon may be determined by the design of the M/PM mark 46 and the like.

In addition, by rotating the dedicated motor 2 in the reverse direction, the date dial or day dial 4 can be rotated.
It is also possible to reverse rotation.

FIG. 10 is a system block diagram of an integrated circuit 1 according to the present invention. In FIG. 10, the oscillation means 10 is the frequency dividing means 1.
), and in response to the output signal group of the frequency dividing means 1), the timing generating means 12 generates timing signals for various arithmetic processing and command execution.

A read-only storage means 13 (hereinafter referred to as ROM) in which the operating procedures of the system are recorded;
The arithmetic unit 14 (hereinafter referred to as CPU) that decodes the instructions of M and performs various arithmetic processing and input/output is the timing generating unit 12.
Writable storage means 15 (hereinafter referred to as RAM) which inputs signals from the input device and stores time information and hand position information, switch input means 18. Motor drive means 16. IT is connected to CPU 14 via data bus 19.

Next, the operation of the system will be explained using FIG. 10.
3 address is determined and the programming data is CP
Sent to U14. The CPU 14 decodes the sent Progerakung data, processes the data stored in the RAM 15 and the data to be given to the motor drive means 16 and 17, and when there is an input from the switch input means 18, This input is sensed and processing is performed according to the operating procedure programmed in the ROM 13.

FIG. 1) is a detailed block diagram of the ROM 13 and the RAM 15.0 AM/PM display using the date wheel or week wheel of the present invention is performed by the AM→PM processing means 131. Afternoon-morning processing means 1
This can be realized by programming 32 into the ROM 13.

Table 1 Table 1 shows the contents of the RAM 15 in more detail. In this case, the date wheel is used to indicate AM/PM, the hour and minute hands are separated from each other, and the minute hand moves every 10 seconds. The RAM 15 includes a part for storing the position of the hands, a part for storing time information, a part for storing the position of Japan, and a part for storing the date. The hand position counter is a part that counts the position of the hour and minute hands. Since 12 hours are counted in units of 10 seconds, it is only necessary to be able to count 12X3600 (seconds)/10 (seconds) - 4320.The 0-car position counter is X31, assuming that the number of daily steps of the car is m steps. It would be good if you could count it.

FIG. 12 is an example of an external view of a timepiece according to the present invention. The date 43 and AM/PM mark 46 are displayed on the date dial 4 through the hour and minute hands 7 and the zero window driven by the first motor. Switches A, B, and K can be used to adjust the time and adjust the zero mark.

FIG. 13 is a flowchart of the starting part of the processing of the integrated circuit of the present invention. When the integrated circuit 1 is in the HALT state, a program is started by a switch input and 1Hz included. In No. 130, whether the program is interwoven by a switch input immediately after the start (STEPI) or included by ill (STEP 3).
) and perform switch input processing accordingly (STEP 2)
, IHz is branched into humanities and sciences (STEP 4).

FIG. 14 is an operational flowchart of 1) 1z processing of the present invention. This process is executed in the normal mode by 1) 1 interoperable. 1 second counter in RAM15). , (STEP 5), 1 second count is 1
If not 0, branch to HALT (cSTE
P6) If the 1-second counter is 10, set the 1-sum counter to 0.5TEP7) Drive the first minus counter by 1 step (STEP8) to advance the minute hand by an amount equivalent to 410 seconds. At the same time, the needle position counter + I L (STEP
9), check if the value is 4320.
TEPIO), 4320 and 6, then 0 cents (
STEP II), and thereafter process the 10 second counter, minute counter, hour counter, and am/pm parrot counter in the same way (S
TEP12-23).

During the night (7) when the day changes from PMII:59 to AM12:Oo, the second motor is driven (m-n) by 5TEP24), and the date wheel position counter is also incremented by +(m-n) (STEP25). AMII:59 to PM12:
When OO, drive in n steps S T E P26)
, increment the date position counter by +n (STEP 27), check whether the date position counter exceeds m x 31 (5TEPZ8), and if it does, add -(m x 31) (STEP 29).

The above is the I Hz processing in the normal mode. day car 1
Number of steps per day m and number of steps from morning to afternoon n
may be determined by the reduction ratio of the second wheel train 3 and the design of the date wheel.

FIG. 15 is an operational flowchart of switch input processing according to the present invention. This process is executed by switch input. First, depending on the mode, normal mode, time correction mode, O
The normal mode switch that branches to the three modes (STEP 30) has no function, so you can use HAL without doing anything.
T (stop).

If it is in the time correction mode, it branches into 4iffi depending on the switch pressed (STEP 31), switch A
When is pressed, the time is advanced by 1 minute, so the processing of 5TEP14 of l Hz processing is moved. When switches A and K are pressed at the same time, the time is advanced by lVf, so the processing is moved to 5TEPIII of I Hz processing. When switch B is turned 1, the day advances by 1 day, so STU! , to P32,
When switches B and K are pressed at the same time, the date advances by 7 days, so the process moves to 5TEP34.

Drive the second motor as much as necessary.
P32.34), and the date dial position counter is also increased by that amount (STE P33.35). Check that the date position counter does not exceed mX31.5T
EP36), if it exceeds -(mX31) (S
TEP37).

If it is in the 0-muff mode, the switch will branch in 4 ways depending on the switch pressed (STEP 38). When the switch is pressed, the hand will advance one step (equivalent to 10 seconds), so the first motor will move one step forward. Drive (STEP 39)
, The same process is performed when switch A, B, B, and K are pressed (STEP 40 to 42). In O match mode, unlike in normal mode or time correction mode,
Since this mode is for matching the motor position with the contents of the hand position and date wheel position counter in the RAM, only the motor is driven and the contents of the hand position counter and date wheel position counter are not changed.

C Effects of the Invention] The address type electronic timepiece according to the present invention drives the date dial or the day dial with a dedicated motor, so that the date dial or the day dial can be used to set
Available for viewing in the afternoon. By making it possible to display AM/PM with an address-type electronic clock without any design restrictions,
Specifications that were difficult to achieve due to the design constraints of the afternoon display can now be easily achieved.Specifications such as alarms, world time, and perpetual calendars require an AM/PM display.
The present invention makes it possible to easily realize these specifications with an address type electronic timepiece.

[Brief explanation of drawings]

FIG. 1 is a first block diagram showing the present invention, FIG. 2 is a second block diagram showing the present invention, FIG. 3 is a block diagram showing the first conventional example, and FIG. 4 is a second conventional example. Block diagrams showing examples, FIG. 5 shows a first embodiment of a day wheel according to the invention, FIG. 6 shows a second embodiment of a day wheel according to the invention, and FIG. 7 shows a first example of a day wheel according to the invention. FIG. 8 is a second embodiment of the date dial according to the present invention, FIG. 9 is a plan view showing the connection between the gate wheel and the dedicated motor according to the present invention, and FIG. 1O is a system of integrated circuits according to the present invention. Block diagram, Figure 1) is a detailed block diagram of ROM and RAM, Table 1 is a table showing detailed contents of RAM,
FIG. 12 is an external view of the timepiece according to the present invention, FIG. 13 is a flowchart of the start part of the processing of the integrated circuit of the present invention, FIG. 14 is an operational flowchart of the IHz processing of the present invention, and FIG. FIG. 3 is an operational flowchart of manual switch processing according to the invention. l...Integrated circuit 2...Second motor/second wheel train 4...Date indicator or day wheel 5...First motor 6...First wheel train 7... Hour, minute (second) hands 8...AM/PM wheel or AM/PM hands 9...Third gear train 10...Oscillating means 1)...Frequency dividing means 12...Temperature noise occurs Means 13... Read-only storage means (ROM) 14...
Arithmetic unit (CPU) 15... Writable storage unit (RAM) 16...
First motor drive means 17...Second motor drive means 18...Switch human power means or higher

Claims (2)

[Claims] (1) An integrated circuit, first and second motors, a first wheel train driven by the first motor, a pointer connected to the first wheel train that indicates the time, etc., and a pointer driven by the second motor. The second gear train,
In an analog electronic watch having a date wheel or a week wheel that rotates by a second wheel train and indicates the day or day of the week, the date wheel or day wheel is provided with characters or marks indicating AM and PM so that AM and PM can be displayed. An analog electronic clock that is characterized by (2) an integrated circuit, first and second motors, a first wheel train driven by the first motor, a pointer connected to the first wheel train and indicating the time, etc., driven by the second motor; The second gear train,
In an analog electronic watch having a date wheel or a day wheel that rotates by a second wheel train and indicates the day or week, an AM/
An analog electronic watch characterized by being equipped with a PM wheel or AM/PM hands and capable of displaying AM and PM.