JPH0766064B2 - Electronic clock - Google Patents

Description

The present invention relates to a signal input device for an electronic timepiece.

[Conventional technology]

Conventionally, as a signal input device of an electronic timepiece, one mainly configured by an external operation member such as a crown or a push button and a switch controlled by the external operation member has been mainly used. Considering the waterproof performance of the case, without using an external operating member that penetrates the case,
Japanese Patent Publication No. Sho 56-23114 proposes a signal input device in which a light receiving element is provided in a watch case and light incident on the light receiving element is externally controlled to perform a switch function.

[Problems to be solved by the invention]

However, since the signal input device using the above light receiving element does not use an external operation member penetrating the case, reliability such as waterproof performance is improved, a thin structure is possible, and further cost reduction due to reduction in the number of parts is achieved. Although there are many merits that can be expected, on the other hand, since natural light is used as the input means, malfunction of the watch in normal use becomes a problem. In order to prevent this malfunction, it is necessary to set a complicated input condition, and it becomes difficult to use if a complicated input condition is set so that a malfunction does not occur.

An object of the present invention is to solve the above-mentioned drawbacks and to provide an electronic timepiece equipped with a signal input device that does not require complicated input conditions and does not cause malfunction.

[Means for solving problems]

The gist of the present invention for achieving the above object is as follows.

In a pointer display electronic timepiece equipped with a hand movement display device having a dial and a pointer, at least one of the hour characters on the dial is arranged on the dial so as to be able to receive the external light of the watch case. Three light receiving elements including a light receiving element that also serves as a light receiving element, a light receiving condition determining circuit that determines the light receiving condition of each light receiving element, and a correction signal that is controlled by an output signal of the light receiving condition determining circuit to correct the pointer fast forward. And a correction signal generating circuit for generating a specific light receiving condition in which the light receiving condition determining circuit has incident light in one of the three light receiving elements arranged in the center and no incident light in two on both sides. It is characterized in that a condition is determined and a modification control signal is supplied to the modification signal generating circuit.

Further, the light receiving condition judging circuit has a timer means for judging the duration of the specific light receiving condition and switching and outputting a low speed correction control signal and a high speed correction control signal. It is characterized in that a low speed correction signal and a high speed correction signal are switched and output according to the correction control signal and the high speed correction control signal.

〔Example〕

An embodiment in which the signal input device of the present invention is applied to a time adjustment device will be described below with reference to the drawings.

1 to 4 show a first embodiment of an electronic timepiece according to the present invention, FIG. 2 is a plan view showing the appearance, FIG. 1 is a system block diagram, and FIG. 4 is shown in FIG. FIG. 3 is a block diagram of the light receiving condition determination circuit, and FIG. 3 is a plan view of the operating jig. In FIG. 2, 1 is an electronic timepiece, 2 is a hand movement display device,
The hand movement display device 2 includes an hour hand 3, a minute hand 4 and a dial 5. Further, three light receiving elements 6a, 6b, 6c are provided for the three small holes arranged side by side in a part of the dial plate 5, and the central light receiving element 6a has one of the hour characters. Also serves as.

Reference numeral 7 shown in FIG. 3 is an operating jig for externally controlling the signal input device, and two shield portions 7b and 7c are provided on both sides of the central light transmitting portion 7a.

When the operating jig 7 is set as shown by the one-dot chain line in FIG. 2, the light receiving conditions of the light receiving element 6a in the center of the three light receiving elements and the two light receiving elements 6b, 6c on both sides are different. As a result, signal input is performed as described later.

FIG. 1 is a block diagram showing a configuration of an electronic timepiece in which a signal input device is applied to time correction. Reference numeral 10 is a reference oscillator, 11 is a q-circle circuit, a signal _t 2 of a 20-second cycle, a signal of 2 Hz
The signal _{h of 1} and 64 Hz is output. Reference numerals 12, 13, and 14 denote waveform shaping circuits, which receive signals _{t 1} , _l , and _h , respectively, to input a clock signal φ _t , a low speed correction signal φ _l , and a high speed correction signal φ.
Output _h . Further, the waveform shaping circuits 13 and 14 and the OR gate 15
The correction signal generating circuit 16 is constituted by and.

Reference numeral 17 is a signal switching circuit for switching and outputting the clock signal φ _t and the correction signal φ ₁ or φ _h , 18 is a motor drive circuit, 19 is a pulse motor, and 2 is a hand movement display device shown in FIG. 20
Is a light receiving condition determination circuit, and the three light receiving elements 6a, 6
The light receiving conditions of b and 6c are discriminated, and the switching control signal S _c , the low speed correction control signal S _l , and the high speed correction control signal S _h are output to the correction signal generation circuit 16 and the signal switching circuit 17 which are the controlled circuits. Supply.

FIG. 4 is a block diagram showing the configuration of the light receiving condition determining circuit 20 shown in FIG. 1, and the signals from the input terminals Ia, Ib, Ic of the three light receiving elements 6a, 6b, 6c and the frequency dividing circuit 11 are shown. input terminal I _h and, switching control signal S _c, the low-speed correction control signal S _l, the output terminal for outputting the high-speed correction control signal S _h for inputting _h
It has O _c , O _l , and O _h .

Reference numerals 21, 22 and 23 denote light receiving signal generation circuits, which receive the light receiving signals of the three light receiving elements 6a, 6b and 6c and generate ON or OFF signals according to a preset level.

Reference numeral 24 is a NOR gate, which generates a signal of logic "1" only when the signals generated by the photodetection signal generating circuits 22 and 23 are both OFF. Reference numeral 25 is an AND gate, the output of which is always logic "0", and the generated signal of the light reception signal generation circuit 21
Only when the output signal of the NOR gate 24 and the output signal of the NOR gate 24 both become logic "1", the condition signal S _o of logic "1" is output. 26
Counter which receives the signal _h from the input terminal I _h is 27
Is a RS type flip-flop (hereinafter abbreviated as RS / FF) set by the output signal of the counter 26, and 28 is a pulsing circuit. Are configured.

Next, the light receiving condition control circuit shown in FIG. 4 will be described.
First, considering the light receiving conditions for the three light receiving elements 6a, 6b, 6c as shown in FIG. 2, there is incident light in the central light receiving element 6a, and the incident light is present in the two light receiving elements 6b, 6c on both sides. The non-existing light receiving condition is a condition that hardly exists when the watch is carried normally. That is, as a light receiving condition during normal carrying, in most cases, incident light is present in all three and all three are not present, and even when partially covered by clothes sleeves, the light receiving in the center Element 6a
As a result, only one of the two light-receiving elements 6b and 6c on both sides will be covered. As described above, the light-receiving condition that the incident light exists only on the light-receiving element 6a is the operation jig shown in FIG. It cannot be satisfied unless it is used.

Thus normal operation jig 7 In FIG. 4 is not set, has a logic "0" without condition signal S _o is generated from the AND gate 25.

Switching control signal S _c of the output terminal O _c therefore is not output, and the timer circuit 29, the counter 26 has stopped operating because it is reset.

(The counter 26 is configured so that it is reset when the reset terminal R is at logic "0" and is released by the supply of the condition signal S _o at logic "1".) From this state, the second When the operation jig 7 is set in the state shown by the alternate long and short dash line in the figure, only the light receiving element 6a is incident and the light receiving element 6a
Since both 6b and 6c are in the non-incident state, the output of the light receiving signal generating circuit 21 is ON and the outputs of the light receiving signal generating circuits 22 and 23 are both OFF.

Thus, the output of NOR gate 24 is a logic "1", the AND gate 25 is the condition signal S _o of the logic "1" occurs. Then, this condition signal S _o is output from the output terminal O _{c as the} switching control signal S _c and is also supplied to the timer circuit 29 so that the counter
At the same time when the reset of 26 is released, RS-FF27 is reset via the pulse conversion circuit 28. As a result, the output of the output terminal of RS-FF is output from the output terminal O _{l as the} low-speed correction signal S _l , and at the same time, the signal supplied to the counter 26 from the input terminal I _h.
Input _h to start counting operation. Then, when a predetermined timer time (10 seconds in this embodiment) has elapsed, an output signal is generated from the counter 26 and the RS-FF 27 is inverted to the set state. As a result, the low speed correction signal S _l from the output terminal O _l is stopped and instead the high speed correction signal S _l is output to the output terminal O _h.
S _h is output.

That is, when the operation jig 7 is set for each light receiving element, the light reception signal generation circuit 20 outputs the switching control signal S _c from the output terminal O _c while the operation jig 7 is set. 10 after the operation jig 7 is set while continuing
The low-speed correction control signal S _l is output to the output terminal O _l for a second, and the high-speed correction control signal S _h is switched and output to the output terminal O _h after 10 seconds have passed. This is repeated for each set of jigs 7. Next, the time correction operation of the electronic timepiece based on the light receiving condition determination circuit 20 will be described with reference to FIG.

As described above, in the normal operation state in which the operation jig 7 is not set, the switching control signal S _c is not output from the output terminal O _c of the light receiving condition determination circuit 20, so the signal switching circuit
The reference numeral 17 designates the time signal φ _t supplied to the input terminal I ₁ and outputs it to the output terminal O, and the motor drive circuit 18 inputs the time signal φ _t and drives the pulse motor 19 to display the movement of hands. The device 2 is moving at a cycle of 20 seconds.

The operation when the time is corrected from this state will be described. When the wearer sets the operation jig 7 on the light receiving elements 6a, 6b, 6c as described above, the light receiving condition determination circuit 20 outputs the switching control signal S _c in response to the generation of the condition signal S _{o and} the RS-FF27 By being reset, the low speed correction control signal S _l is output.

When the switching control signal S _c is supplied, the signal switching circuit 17 switches the selected state from the input terminals I ₁ to I ₂ , and stops the hand movement operation by the time signal φ _t . Further, the low-speed correction control signal S ₁ is supplied to the correction signal creating circuit 16, so that the waveform shaping circuit 13 is activated to generate the low-speed correction signal φ ₁ . The low speed correction signal φ ₁ is supplied to the motor drive circuit 18 through the OR gate 15 and the signal switching circuit 17, and the hand movement indicator 2 starts low speed correction at the speed of 2 Hz of the low speed correction signal φ ₁ . Then, as described above, the light receiving condition determination circuit 20 outputs the high speed correction control signal S _h instead of the low speed correction control signal S _l after 10 seconds due to the operation of the timer circuit 29. The result correction signal generating circuit 16 stops the waveform shaping circuit 13 is an operation to generate a high-speed correction signal phi _h waveform shaping circuit 14 becomes the operating state on behalf, the high-speed correction signal phi _h is
By passing through the OR gate 15 and the signal switching circuit 17 and being supplied to the motor drive circuit 18, the hand movement display device 2 is fast-forward corrected at a speed of 64 Hz of the high-speed correction signal φ _h .

The correction operation is stopped by releasing the setting of the operation jig 7. That is, since the condition signal S _o of the light receiving condition determination circuit 20 disappears and the switching control signal S _c also disappears, the signal switching circuit 17 returns to the selected state of the input terminal I ₁ and restarts the hand movement operation by the clock signal φ _t. .

Therefore, the time adjustment method in the time adjustment device of the present invention is performed only by the low speed correction signal φ _l when the correction amount is small, and when the correction amount is large, the low speed correction signal φ _l is used.
_l , high-speed correction signal φ _h , in this order, until the target time to be corrected has been corrected, the operation jig 7 is once removed, the time adjustment operation is stopped, and the operation jig 7 is set again to correct at low speed. The correction to the target time is performed by the signal φ _l .

FIG. 5 is a plan view showing the outer appearance of an electronic timepiece showing a second embodiment of the present invention, and a part different from FIG. 2 is that a light receiving element 6d paired with the light receiving element 6a is provided. is there. The four light-receiving elements 6a, 6b, 6c, 6d have the operation jig 7
Alternatively, by setting to the state B, the light receiving elements 6a and 6b and the light receiving elements 6b and 6c are configured as one set to perform a switching function.

In this embodiment, as will be described later, the set state A of the operating jig 7 is used for correcting the hand movement display device in the forward direction, and the set state B is used for correcting the backward direction.

FIG. 6 is a plan view showing the outer appearance of an electronic timepiece showing a third embodiment of the present invention. The difference from the embodiment of FIG. 5 is that two sets of light receiving elements 6a, 6d, 6b, 6c are respectively That is, they are arranged side by side so as to be diagonal positions, and the two sets of light receiving elements are orthogonal to each other. And the four light receiving elements 6a, 6b, 6c, 6d
6a is 8 o'clock, 6b is 11 o'clock, 6c is 5 o'clock, and 6d is 2 o'clock, and each has a time character, and as shown in the drawing, a pair of light receiving elements 6a arranged in diagonal positions, Since the switch operation can be performed by shielding 6d with a finger or the like, no special operation jig 7 or the like is required.

FIG. 7 is a system block diagram of an electronic timepiece provided with four light receiving elements shown in FIGS. 5 and 6, and a portion different from FIG. 1 is that the light receiving condition determining circuit 40 has four light receiving elements 6a, 6b, 6c,
The light receiving condition of 6d is determined. Therefore, the low speed correction control signal S ₁ for forward correction, the high speed correction control signal S _h , and the switching control output from the light receiving condition determination circuit 20 shown in FIG. In addition to the signal S _c , the low speed reverse correction control signal S ′ _l for reverse direction correction, the high speed reverse correction control signal S ′ _h and the switching control signal S ′ _c are output, and the low speed reverse correction control signal S ′ is output.
the inverse modified signal generating circuit 36 for outputting a _l and fast reverse modified control signal S 'slow inverse modified signal for the reverse modified by entering the _h phi' _l and fast reverse modified control signal phi _'h is provided Further, the signal switching circuit 37 is supplied from the inverse correction signal generating circuit 36 in addition to the input terminals I ₁ and I ₂ for inputting the clock signal φ _t and the correction signal supplied from the correction signal generating circuit 16. Equipped with an input terminal I ₃ for inputting a reverse correction signal,
The three types of input signals are selectively output to the output terminal O according to the two types of switching control signals S _c and S ′ _c supplied from the light receiving condition determination circuit 40.

The inverse modified signal forming circuit 36 is constituted by a waveform shaping circuit 33 and the OR gate 35 to create the inverse modified signal, the low-speed inverse modified signal phi _'l and fast inverse modified by the same operation as the waveform shaping circuit 16 and outputs a signal φ _'h.

FIG. 8 is a block diagram showing a specific configuration of the light receiving condition determining circuit 40. Reference numerals 41, 42, 43 and 44 denote light receiving signal generating circuits for receiving light from the four light receiving elements 6a, 6d, 6b and 6c. A signal is input and an ON or OFF signal is generated according to a preset setting level. 45, 46, 47, 48 are AND gates, 49, 50 are N
OR gate, 51 is an OR gate, AND gates 45 and 46 are
Generates a signal of logic "1" only when both the light receiving signal generation circuits 41, 42 or 43, 44 are in the ON condition.
NOR gates 49 and 50 are used for receiving light signal generation circuits 41 and 4 respectively.
Logic "1" only when 2 or 43,44 generated signals are both OFF
Generate the signal.

The AND gate 47 outputs the condition signal S _o of logic “1” to its output only when both the light receiving elements 6a and 6d are in the incident state and both the light receiving elements 6b and 6c are in the non-incident state, and vice versa. The AND gate 48 is provided when the light receiving elements 6a and 6d are both in the non-incident state,
b, 6c outputs an inverted condition signal S _'o of logic "1" both to the output of miso when the incident state.

Further, 29 is the same timer circuit as the timer circuit 29 shown in FIG. 4, 55 and 56 are selection circuits, and the selection circuits 55 and 56 respectively input the Q and output of RS-FF27 constituting the timer circuit 29, According to the control of the condition signal S _o and the reverse condition signal S ′ _o from the AND gates 47 and 48, the correction control signals S _l and S _h or the reverse correction control signals S ′ _l and S ′ _h are selectively output. .

That is, the setting A state of the operation jig 7 of FIG.
In the state shown in the figure, the selection signal is generated because the condition signal S _o is generated.
55 becomes the operating state and the correction control signal is _sent from the output terminals O _l and O _h.
S _l and S _h are output, and set B of the operation jig 7 in FIG.
State and the sixth view of the light receiving elements 6a, 6d and is at the state suffered a finger opposite condition signal S 'output terminal O selection circuit 56 becomes an operation state _{for o} occurs' _l, than _{O' h} since the inverse modified control signal _{S 'l,} S' _h is issued, does not occur with the condition signals S _o and reverse condition signal S _'o is the incident state other than the above,
Not all correction control signals are output.

Next, referring to FIG. 7, the correction operation of the electronic timepiece shown in FIGS. 5 and 6 will be described.

As described above, when the correction operation with the operating jig 7 or the finger is not performed, the switching control signals S _c and S ′ _c from the output terminals O _c and O ′ _c of the light receiving condition determination circuit 40 are both Since no signal is output, the signal switching circuit 37 selectively outputs the time signal φ _t supplied to the input terminal I ₁ to the output terminal O, thereby performing the normal time counting operation by moving the hand for 20 seconds.

The operation when the time is corrected from this state will be described.

That is, when it is desired to make corrections in the forward direction, the output terminal O _c of the light receiving condition determination circuit 40 is set by setting the operating jig 7 in the set A state of FIG.
A switching control signal S _c is generated in the signal switching circuit.
37, the input terminal I ₂ is selected, and at the same time, the low speed correction signal S _l is output from the output terminal O _l , and after a certain time, the high speed correction control signal S _h is switched and output from the output terminal O _h . As a result, the correction signal switching circuit 16 generates the low speed correction signal φ ₁ and the high speed correction signal φ _h, and corrects the hand movement display device 2 in the forward direction via the signal switching circuit 37.

When it is desired to correct it in the delay direction, the output terminal D' _c of the light receiving condition determination circuit 40 is applied when the operating jig 7 in the set B state in FIG. 5 or the light receiving elements 6a and 6d in FIG. 6 is covered with a finger. switching control signal S 'signal switching circuit 37 by _{the c} occurs becomes the selection state of the input terminal I _3, an output terminal O simultaneously' ₁ is output from the low-speed reverse modified control signal S _'l, further predetermined time after the output terminal O _'faster than _h inverse modified control signal _{S' h} is switched output. As a result, the reverse correction signal creating circuit 36 generates the low speed reverse correction signal φ ′ _l and the high speed reverse correction signal φ ′ _h , reverses the pulse motor 19 through the signal switching circuit 37, and moves the hand movement display device 2 in the delay direction. Fix it.

As described above, the carrier can quickly correct the desired time by using the advance correction operation and the delay correction operation together.

The operation jig 7 may be made of any opaque material such as a metal plate, plastic, paper or the like, and may be used as an accessory when purchasing a watch. In addition, even if the operating jig is lost, it can be easily made by the wearer himself / herself with paper, and in the case of an emergency where the operating jig 7 cannot be prepared, two fingers can be used. Switch operation can be performed with a slight gap provided between them.

In the present embodiment, the time adjustment circuit is shown as the controlled circuit controlled by the light receiving element, but the present invention is not limited to this, and is used for controlling the additional function circuit and the rate adjusting circuit. However, it is clear that it is effective.

〔The invention's effect〕

As described above, in the present invention, in the pointer display electronic timepiece provided with the hand movement display device having the dial and the pointer, the dials are arranged side by side so that the external light of the watch case can be received on the dial. At least one is controlled by three light-receiving elements including a light-receiving element also serving as an hour character on a dial, a light-receiving condition determination circuit for determining the light-receiving condition of each light-receiving element, and an output signal of the light-receiving condition determination circuit. , A correction signal generating circuit for generating a correction signal for correcting the pointer fast-forwarding, and the light receiving condition determining circuit has incident light in one of the three light receiving elements at the center, The correction signal generating circuit outputs the correction signal to perform the correction operation of the pointer only when the specific light receiving condition in which no incident light exists is discriminated. Therefore, the operability is good and a malfunction occurs. Corrective signal input for correction It is possible to provide a location.

Further, by making at least one of the light receiving elements also serve as a time character, it is possible to realize a correction signal input device without significantly affecting the design of the pointer display electronic timepiece.

Also, the same input operation can be switched between low-speed correction and high-speed correction using a timer, which enables high-speed correction with a large amount of correction and low-speed correction for subtle time adjustment.

Therefore, by adopting the correction signal input device of the present invention, it becomes possible to remove the external operation member from the electronic timepiece. As a result, the pointer display electronic timepiece is made compact, thin and waterproof without impairing the design. Has a great effect on the improvement of

[Brief description of drawings]

All the drawings relate to the electronic timepiece of the present invention,
2, 5, and 6 are plan views showing the appearance of an electronic timepiece, FIGS. 1 and 7 are system block diagrams, and FIGS. 4 and 8 are block diagrams of a light receiving condition determination circuit. FIG. 3 is a plan view of the operating jig. 1 ... Electronic clock, 2 ... Hand movement display device, 6a to 6d ... Light receiving element, 16 ... Correction signal generation circuit, 20,40 ... Light receiving condition determination circuit, 29 ... Timer circuit.

Claims (2)

[Claims] 1. In a pointer indicating electronic timepiece having a hand movement display device having a dial and a pointer, at least one dial arranged on the dial so as to be able to receive the external light of the watch case. Three light receiving elements including a light receiving element that also serves as an upper character, a light receiving condition determining circuit that determines the light receiving condition of each light receiving element, and the output signal of the light receiving condition determining circuit are controlled to fast-forward and correct the pointer. And a correction signal generating circuit for generating a correction signal for generating incident light. The light receiving condition determination circuit has incident light in one of the three light receiving elements arranged in the center and incident light in two on both sides. The electronic timepiece is characterized by determining a specific light receiving condition that does not exist and supplying a correction control signal to the correction signal generating circuit. 2. The light receiving condition determining circuit has timer means for determining the duration of the specific light receiving condition and switching between a low speed correction control signal and a high speed correction control signal, and the correction signal generating circuit. 2. The electronic timepiece according to claim 1, wherein the low speed correction signal and the high speed correction signal are switched and output according to the low speed correction control signal and the high speed correction control signal.