JPH0462496A - Hand type electronic timepiece - Google Patents

Abstract

PURPOSE:To reduce trouble due to operation by switching the driving methods of a date indicator which performs operation for rotation in a constant direction (forward rotation) and driving operation for making a display in the date window so as to match the information of a day counting means with a date displayed in a date window. CONSTITUTION:In a driving frequency counter 41, 30 is set and in a rotating direction switching means 40, forward rotation is set; and a display wheel is driven. It is decided whether a display when driving state is entered or not; when so, the counter 41 counts down by one and when not, the 0 positioning of the display wheel is completed. Then the date indicator which performs the driving operation for displaying a half of a date before or after the current display position in the date window is driven continuously to the fine positioning of the number displayed in the date window in normal operation.

Description

DETAILED DESCRIPTION OF THE INVENTION: Industrial Application Field The present invention relates to pointer positioning control of a pointer-type electronic timepiece in which hour, minute, and second hands and a display wheel are each controlled by independent drive systems.

[Summary of the Invention] The present invention relates to a pointer-type electronic watch in which the hour, minute, and second hands and the display wheel are controlled by independent drive systems, and the hour, minute, and second hands, which are the time counting results, are displayed by the corresponding hour, minute, and second hands. For example, when displaying daily counting results on a display wheel, in this pointer type electronic watch, after the storage means, external input control means, and external output control means are initialized (hereinafter referred to as initialization) when a battery is installed, etc. It is necessary to align the hands and the time counting results. In particular, the purpose is to reduce the time required for positioning after initialization and during normal operation by switching the drive method for the operation of the display wheel based on information from the initialization flag and rotational direction switching means.

[Prior Art] In conventional pointer-type electronic watches, for example those with a three-hand calendar, the hour, minute, and second hands and the head wheel are driven by one motor, so the head wheel is driven in conjunction with the hour hand. . Therefore, when the battery was installed, the hand had to be driven in order to set the wheel to today's date. In addition, even if the person using the watch rotates the hour hand twice and controls the head wheel by one day in order to change the date from the 31st to the 1st at the end of the month, the information on the time counting means This required an operation to align the position with the operator's pointer, and the operation could only be performed by rotating in a fixed direction.

[IQ to be solved by the invention] When performing an operation of aligning the information of the time counting means with the pointer, the operation can only be performed by rotating in a fixed direction. The number of steps in one rotation of the hour, minute, and second hands, which are rotated by independent drive systems, is approximately 300 steps, and if they are driven at high speed, it is unnecessary to feel the hassle of operating the hands to make one rotation in a few seconds. However, for example, when attempting to drive a date dial using a single drive system, at least 60 steps or more are required for one day in order to ensure the drive torque and static torque of the drive motor.

In the case of a spindle, the steps for one revolution are 1860 steps because it is divided into 31 days.
Hz drive), it takes 29 seconds, which makes the operation confusing.

[Object of the Invention] The present invention provides an operation for changing the information of the day counting means and the date displayed on the old screen when a battery is installed, and fine alignment of the numbers displayed on the old screen during normal operation. The object of the present invention is to reduce the troublesome operation by switching the driving method of the date dial by the operation.

[Means for Solving the Problems] In order to solve the above-mentioned problems, in an electronic watch in which the pointer and the display wheel are driven by independent drive systems, initialization conditions are set in response to a signal from a second external operating member. Initialization control means for performing settings, external input control means for receiving and processing inputs from a first plurality of external operation members, display vehicle drive identification means, and rotation direction switching means are provided to eliminate troublesome operations. The aim is to reduce the

[Function] By using the above-mentioned means, the operation of rotating in a certain direction (hereinafter referred to as normal rotation) in order to completely defeat the information of the day counting means and the date displayed on the old screen when the battery is installed. , In order to finely align the numbers displayed on the old screen during normal operation, drive operations are performed to display 1/2 (half a day) of the previous and following dates on the old screen centering on the currently displayed position. By switching the drive method of the date dial, it is possible to reduce the troublesome operation.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a schematic diagram showing an embodiment of a pointer type electronic timepiece 1c of the present invention. 1c for pointer type electronic watch is CM
ROM 6 as a program memory, RAM 7 as a data memory, an interrupt control circuit 4, and an external input control means 8 on one chip, with an arithmetic processing circuit 5 as the center.
, motor drive control means 9, initialization control means 10
It is a one-chip microcomputer that integrates the following.

The arithmetic processing circuit 5 includes an ALU, an arithmetic register, an address control register, an instruction decoder, etc., and is connected to peripheral circuits via an address bus 11 and a data bus 12.

The ROM 6 is a program memory and stores software indicating processing procedures.

The RAM 7 is a data memory and is used as a counter for storing data of each time measuring means.

The oscillation circuit 1 uses a crystal oscillator as its source oscillation, and inputs it to a frequency divider circuit 2 for frequency division, and also inputs it to a system clock generation circuit 3 to create a signal necessary for the operation of the arithmetic processing circuit 5. supply.

The interrupt control circuit 4 receives the output signal of the frequency dividing circuit 2 and the first
It is configured to supply an activation signal to the arithmetic processing circuit 5 in response to a signal from an external input control means 8 that receives input from a plurality of external operation members 13 .

In the second recess, a block diagram illustrating an embodiment of the present invention is shown. The output of an oscillation circuit 1 whose source oscillation is a crystal resonator is input to a frequency dividing circuit 2, which divides the frequency of the output signal of the oscillation circuit 1. The second counting means 21 counts the output signal (for example, IH2 signal) of the frequency dividing circuit 2, and the minute counting means 22 counts the carry to the minute digit outputted from the second counting means 21. The clock counting means 23 counts the carries to the hour digits output from the minute counting means 22, and the day counting means 24 counts the carries to the day digits output from the clock counting means 23. The second hand drive control means 25 controls whether or not to drive the second hand according to the output of the second counting means 21. Similarly, the minute hand drive control means 26 controls whether or not to drive according to the output of the minute counting means 22, and the hour hand drive control means 27 controls whether to drive or not according to the output of the clock counting means 23. The display drive control means 28 controls whether to drive or not in accordance with the output of the day counting means 24.

The drive waveform synthesis means 29 is independent, corresponding to the pointer and the display wheel, and inputs the output of the frequency dividing circuit 2 and information of the individual drive control means and outputs it to the motor 30.

Separately, the second hand drive waveform synthesis means 31 inputs the output of the frequency dividing circuit 2 and the information of the second hand drive control means 25 and outputs them to the second hand motor 35. The minute hand drive waveform synthesis means 32 inputs the output of the frequency dividing circuit 2 and the information of the minute hand drive control means 26 and outputs it to the minute hand motor 36. The hour hand drive waveform synthesis means 33 inputs the output of the frequency dividing circuit 2 and the information of the hour hand drive control means 27 and outputs it to the hour hand motor 37. The display car drive waveform synthesis means 34 is
The output of the frequency dividing circuit 2 and the information of the display car drive control means 28 are input and output to the display car motor 38.

The outputs of the first plurality of external operating members 13 output control signals 42, 43 via the external input control means 8.

The control signal 42 is a signal for controlling, in each drive control means, whether or not the normal driving is possible based on the counting results of the respective counting means. In addition, the control signal 43
is a control signal for zeroing in each drive control means.

The third figure shows the movement of the spout in this embodiment.

(a) shows that the rotation is performed only in the normal rotation direction to align the information of the day counting means 24 immediately after initialization with the date displayed on the old screen.

(b) shows the drive of the date wheel for fine positioning of the date displayed in the old normal state, and shows that it rotates forward for half a day and then reverses for half a day around the current position. .

The initializing flag 39, rotational direction switching means 40, and driving number counter 41 shown in FIG. 2 are means provided for controlling the drive of the display wheel shown in FIG. 3.

Next, the above operation will be explained according to a flowchart showing the operation procedure based on this embodiment shown in FIG. FIG. 4(a) is a flowchart showing the operating procedure when the external operation member 14 is inputted and inputted to the arithmetic processing circuit 5 via the initialization control means 10. When activated by an initialization signal, RAM initialization processing 401;
After performing the process 402 of initializing the output port and the process 403 of writing "1" to the initial flag 39, the HA is activated.
Move to LT state 404. In the flowchart (IHz processing) showing the operating procedure of the present invention shown in FIG. The processing procedure when this is done is shown below. When an IHz interband occurs from the frequency dividing circuit 2 and a start signal is input to the arithmetic processing circuit 5 via the interrupt control means 4, the second counting means 2
1 is added to 1, and in step 406 it is determined whether the result of the second counting means 21 is equal to 60. If YES (hereinafter referred to as Y), the process branches to process 409, and if No (hereinafter referred to as N), the process branches to process 407. In process 407, it is determined whether the drive is possible, and if Y, the process branches to the drive process 1 subroutine in process 408, and moves to HAL T404.
If N, branch to HAL T404. When the result in process 406 is Y, the count value of the second counting means 21 is set to "0" in process 409.
0" and adds 1 to the minute counting means 22 in process 410. In process 411, it is determined whether the result of the minute counting means 22 is equal to 60. If Y, the process goes to process 414; if N, the process goes to process 4.
Branches into 12. In process 412, it is determined whether the drive is possible,
When Y, the process branches to the drive process 2 subroutine of process 413, and moves to HA L T404, and when h, HA L
Branches to T404. If Y in process 411, process 41
4, the count value of the minute counting means 22 is set to "00",
In process 415, 1 is added to the clock counting means 23. Processing 41
At step 6, it is determined whether the result of the clock counting means 23 is equal to 24. If the result is Y, the process branches to process 419, and if it is N, the process branches to process 417. In process 417, it is determined whether the drive is possible, and if it is Y,
Branches to the drive process 3 subroutine of process 418, and HA
Shift to L T404, and when N, HA L T404
Branch into. When the result in process 416 is Y, the process branches to process 419, the count value of the clock counting means 23 is set to "00", and process 420
Then, add 1 to the day counting means 24. In process 421, it is determined whether the result of the day counting means 24 is equal to 31. If the result is Y, the process branches to process 424, and if N, the process branches to process 422. In process 422, it is determined whether the drive is possible, and if Y, process 42
Branching to the subroutine 4 of drive processing 3, HAL T
404, and if N, branches to HAL T404. When the result in process 421 is Y, the process branches to process 424, the count value of the day counting means 24 is set to "00", and in process 425 it is determined whether the drive is possible, and when the result is Y, the process branches to the subroutine of drive process 5 in process 426. , migrated to HAL TE01,
If N, branch to HAL T404.

Next, in the flowchart (drive processing) showing the operating procedure of the present invention in FIG. 4(c), the subroutine of each drive processing in the flowchart (IH2 processing) showing the operating procedure of the present invention In the drive process 1 and drive process 5 subroutines, the second hand control means 25 is set to 1 in process 427, and the second hand is driven one step in process 428. In process 429, 1 is subtracted from the second hand control means 25, and it is determined whether the result is 0. If N, the process branches to process 42, and if Y, the process branches to process 430. Processing 4
At 30, it is determined whether the minute hand is being driven, and when it is Y, process 431.
When the result is N, the process branches to return to process 442. Processing 4
31 sets the minute hand control means 26 to 1, and the subroutine of drive process 2 starts from this process 431. In process 432, the minute hand is driven one step. Processing 433
Subtract 1 from the minute hand control means 26 and determine whether the result is O. If N, proceed to process 432; if Y, proceed to process 43.
Branches into 4. In process 434, it is determined whether or not the hour hand is being driven, and if the result is Y, the process branches to process 435, and if it is N, the process branches to return to process 442. Process 435 sets the hour hand control means 27 to 1, but the subroutine of drive process 3 is similar to process 4.
Start from 35. In process 436, the hour hand is driven one step.

In process 437, 1 is subtracted from the hour hand control means 27, and it is determined whether the result is O. If the result is N, the process branches to process 436, and if Y, the process branches to process 438. In process 438, it is determined whether the display vehicle is being driven, and if Y, the process goes to process 439; if N, process 4
Branch to return 42. Process 439 sets 60 in the display vehicle control means 28, and the subroutine of drive process 4 starts from this process 439. In this embodiment, the display function of the display vehicle is set to day, and the number of steps required to drive one day is set to 60 steps. Processing 440
The display car is driven one step. In process 441, 1 is subtracted from the display car ■j control means 2 days, and it is determined whether the result is O. If N, proceed to process 440; if Y, proceed to process 442.
Branch to the return of . Processes 440 and 441 are repeated in a loop to perform 60 steps of driving.

Next, in the flowchart (display wheel O positioning process) showing the operating procedure of the present invention in FIG. 4(d), the initialization signal in the flowchart (initialization) showing the operating procedure of the present invention in FIG. is activated, 1 is placed in the initialization flag 39, and the operation of rotating in a certain direction (hereinafter referred to as normal rotation) in order to match the information of the day counting means with the date displayed in the old format, and the display in the old format during normal operation. In order to finely align the numbers displayed, you can adjust the dates 1/2 before and after the currently displayed position.
This figure shows how to drive the date dial to display the old-fashioned display in increments of 2 (half a day). In process 443, it is determined whether the initialize flag 39 is set to 1,
If Y, the process branches to process 444; if N, the process branches to process 448. When the determination in process 443 is Y, it means that the rotation direction switching means 40 has been initialized.
Normal rotation is set to , and the display wheel is driven in step 445. In process 446, it is determined whether the display vehicle is in a driving state, and if Y, process 44
5 to continue driving, and when the result is N, the initialization flag 39 is set to O in process 447, and the process returns to process 461 to complete the O positioning of the display wheel.

If the determination in process 443 is N, this is an operation for fine positioning of the numbers displayed in the old format during normal operation, and in process 448 the driving number counter 41 is set to 30, and in process 449 the rotation direction is set. The switching means 40 is set to normal rotation, and the display wheel is driven in step 445. In process 451, it is determined whether the display car is in a driving state, and when the result is Y, the process branches to process 445, and when the result is N, the process returns to process 461, and the 0 position alignment of the display car is completed. In process 452, 1 is subtracted from the data of the driving number counter 41, and in process 453, it is determined whether the data of the driving number counter 41 is O, and when it is N, processing 45 is performed.
It branches to 0 to continue normal rotation drive, and when it is Y, it branches to ring 458 processing 454. In process 454, drive number counter 41
60 is set in the rotation direction switching means 4 in process 455.
Reverse rotation is set to 0, and the display wheel is driven in reverse at step 456. In process 457, it is determined whether the display car is in a driving state, and when the result is Y, the process branches to process 458, and when the result is N, the process returns to process 461, and the O position alignment of the display car is completed. In process 458, 1 is subtracted from the data of the driving number counter 41, and process 4
59, it is determined whether the data of the driving number counter 41 is 0 or not, and N
When YES, the process branches to process 456 to continue the reverse rotation drive, and when Y, the process branches to process 460.

In process 460, 60 is set in the driving number counter 41, and the process moves to process 449. In order to finely align the numbers displayed in the old format during normal operation, the numbers are moved back and forth around the currently displayed position. The drive of the gate wheel continues to be operated to display the old date by 1/2 (half day) at a time.
In this embodiment, the date wheel is described, but it is even more effective when applied to a display wheel such as a day wheel that requires a large number of rotating steps per rotation.

[Effects of the Invention] According to the present invention, as explained above, in order to match the information of the day counting means when the battery is installed (after initialization) with the date displayed in the old format, ), and for fine alignment of the numbers displayed in the old format during normal operation, the date 1/2 (half a day) before and after the currently displayed position is displayed in the old format. By switching the driving method of the date dial to perform the driving operation for the purpose of the date dial, there is an effect of reducing the troublesome operation.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of an IC for a pointer-type electronic watch of the present invention, Fig. 2 is a block diagram showing an embodiment of the present invention, and Figs. 3 (a) and (b) are movements of the mouth wheel. Figures 4(a), 4(b), 4(c), and 4(d) are flowcharts showing the operating procedure according to this embodiment. 1... Oscillator circuit 2... Frequency dividing circuit 3... System clock generation circuit 4... Interrupt control circuit 5... 7ji arithmetic processing circuit 6
ROM 7 RAM 8 External input control means 9 Motor drive control means 10 Initialization control means 11 Data bus 12 Address bus 1
3... First plurality of external input members 14... Second external input member 21... Second counting means 22... Minute counting means 23
... Clock counting means 24... Day counting means 25...
・Second hand drive control means 26...Minute hand drive 'M' flat means 7...Hour hand drive control means 28...Display wheel drive control means 29...Drive waveform synthesis means 30...Drive motor 31...・Second hand drive waveform synthesis means 32...Minute hand drive waveform synthesis means 33...Hour hand drive waveform synthesis means 34...Display wheel drive waveform synthesis means 35...Second hand motor 36...Minute hand motor 3
7... Hour hand motor 38... Display car motor 3
9... Initialize flag 40... Rotation direction switching means 41... Driving number counter 42, 43... Control signal and above Block diagram showing an embodiment of the finger j1 type electronic control IC of the present invention Diagram X (a) Shows the movement of the date wheel tl? (Initialize 1) (b) Diagram showing the movement of the date wheel (normally P4) Figure 3 Flowchart showing the book tegane based on the book's actual examples (IH
z processing), i:41(b) Flowchart showing the operation procedure based on this embodiment (initialization) FIG. 4(a)

Claims (2)

[Claims] (1) An electronic watch equipped with at least an hour hand, a minute hand, a second hand, and a display wheel, which includes (a) an oscillation circuit whose source is a crystal oscillator, and (b) a frequency division circuit that divides the output of the oscillation circuit. , (c) counting means for counting seconds, minutes, hours, and days for counting the output of the frequency dividing circuit; (d) a plurality of first external operating members; and (e) a plurality of the first external operating members. an external input control means for controlling the output of the member; (f) a second external operation member for initializing the storage means, the external input control means, and the external output control means; and (g) the second external an initialization control means for controlling the output of the operating member; (h) an initialization flag for receiving information from the initialization control means and identifying a state; and (i) inputting information on the external input control means and the initialization flag. 1. A pointer-type electronic timepiece, comprising: rotation direction switching means; and (j) a driving number counter that is set in response to information from the external input control means. (2) Each pointer and display wheel has an individual motor and is controlled by an individual drive control means and an individual drive waveform synthesis means that receives signals from the individual drive control means and the frequency dividing circuit. A pointer type electronic timepiece according to claim 1, characterized in that: