CN100517131C - Electronic apparatus, method for detecting positions of indicatingmembers in electronic apparatus - Google Patents

Abstract

A timepiece 1 includes pointers 2, motors 21 and 26 for driving the pointers 2, a pointer position detector 405 for detecting the positions of the pointers 2, a control unit 409, an electricity storage unit 40 as a power supply, and a voltage detector 408 for detecting the power supply voltage. The control unit 409 controls the pointer position detecting operation by means of the pointer position detector 405 on the basis of the power supply voltage detected by the voltage detector 408. Therefore, the pointer position detector 405 can be halted when the power supply voltage decreases to less than a specific voltage, and the pointer position detector 405 can be driven while the power supply voltage is low.

Description

The positions of members detection method of electronic equipment, electronic equipment

Technical field

The present invention relates to have electronic equipment, its positions of members detection method and the positions of members trace routine of indicating devices such as analog clock and watch or analog stopwatch.

Background technology

In the analog electric wave correction clock and watch that drive pointer, following situation may take place, promptly because of vibrated or the influence of external magnetic field etc. when the generation in service of pointer is wrong, inner pin location counter gets muddled with the pointer position of reality, even the time of reception, sign indicating number can not correctly show the time.Therefore, whether consistent for the position of confirming pointer with the value of pin location counter, need carry out the position probing of pointer.

As the hand position testing device in this electric wave correction clock and watch, known have a kind of hand position testing device (for example opening flat 5-209970 communique with reference to the spy, hereinafter referred to as patent documentation 1) that has utilized the optical sensor with light-emitting component and photo detector.

This hand position testing device disposes the parts such as gear with the rotation interlock action of pointer between the light-emitting component of position transducer and photo detector, on these parts, be provided with to be used to make on certain location and detect the hole that light passes through.When from the detection light of light-emitting component output by this hole, and when being received, can detect described pointer and be in situation on the certain location by photo detector.

Used in the hand position testing device of optical sensor at these, when making the optical sensor action, needed transient flow to cross the electric current of several mA, supply voltage is descended.Particularly using in the electronic equipment of the secondary cell that can discharge and recharge as power supply, because the discharge resistance height of secondary cell, so the decline of supply voltage is obvious.

In addition, carrying out pointer position when detecting, must to optical sensor and the output of pointer CD-ROM drive motor be to the maximum pointer position about 2000～5000 times detect with and the pulse of pointer driving usefulness.Promptly will carry out the pointer position detection need drive the pointer commentaries on classics and move a step, and need whether be in by the sensor pointer at this moment the position of regulation to 1 pulse of inputs such as the step motor that drives pointer drive signal in (1 step).Therefore, when utilizing 1 motor to drive under the situation of minute hand, minute hand moves to the position of regulation in order to make, and might need to be to the maximum the driving of 12 small time takings.At this moment, in order to make minute hand rotate a circle (move a small time taking), be set under the situation of the drive signal of 60 * 6=360 pulse of motor input, in order to carry out the driving of 12 small time takings, then need to import the drive signal of 360 pulse * 12 hour=4320 pulses, and need be to input that should the drive signal driving pulse to optical sensor input equal number.

At this moment, supply voltage produces voltage and descends as shown in figure 12 when having exported the driving pulse that motor uses, slowly recover afterwards.And producing voltage once more when having exported the pointer position detection with driving pulse descends.Afterwards, though supply voltage is slowly to recover, if but the pulse of carrying out next time before recovering is fully exported, then owing to be that benchmark has produced voltage decline with this recovery voltage, therefore, detect if carry out repeatedly motor driven and pointer position continuously, then can cause declining to a great extent of supply voltage.

That is, when carrying out the pointer position detection continuously, motor driven and optical sensor drive need flow through big electric current, makes the decline of supply voltage increase.

And when the decline of supply voltage increases, the action of optical sensor will become instability, will cause hand position testing device not work normally.

In addition, when having produced owing to carrying out pointer position when detecting voltage that action causes and descending, the work that may produce the control part that is made of IC or CPU etc. is undesired, and the danger that is eliminated etc. the paralysis of the system that causes because of the information in memory storages such as RAM.

And, in order to reduce the change of power supply, considered the corresponding scheme of keeping electric capacity that is provided with, but under supply voltage descends big situation, needed jumbo electric capacity, if it is installed in the such miniaturized electronics of wrist-watch for example, then exists the problem that is difficult to effectively utilize the space.

Such problem is not limited to electric wave amendment type clock and watch, be used for the various electronic equipments such as various clock and watch, stopwatch, timer of the indicating device of indication information having pointer etc., all there is such problem in the electronic equipment that position detecting devices such as every use optical sensor detect the position of indicating device.

And, the electric wave amendment type clock and watch of being put down in writing with patent documentation 1 are identical, disclose a kind of electric wave amendment type clock and watch (for example, opening flat 2002-107465 communique) that are provided with the gear that detects the hole etc. for the position of detecting pointer that have hereinafter referred to as patent documentation 2 with reference to the spy.The electric wave amendment type clock and watch that patent documentation 2 is put down in writing have two kinds of cars (minute gear) that minute hand has been installed, the hour wheel (hour hand gear) that hour hands have been installed, with this hour wheel meshed gears (the 2 three kind of car) with by the gear (the 1 four kind of car) that the minute hand drive motor drives at first, on these gears, be respectively equipped with the detection hole that printing opacity is used.And, in patent documentation 2, be by making the light that sends from light-emitting component, and be subjected to light by photo detector by all these detect holes, be the position judgment of minute hand under this state and hour hands reference position (normally just in time 12 position).

In patent documentation 2, detect about the pointer position of minute hand, be when the detection hole of the detection hole of the two kind cars of light by minute hand is installed and the gear that the minute hand drive motor drives at first, be judged as minute hand and be in the reference position.

But between the gear that two kinds of cars and motor drive at first, the anglec of rotation of being rotated under 1 step of motor drives is very different.That is, the anglec of rotation in 1 step of the gear of motor-side is very big, and two kinds of cars are then very little.Therefore, from the gear of motor-side is light transmission state and two kinds of states that the car side also is a light transmission state, when the rotation of carrying out a week to the gear of motor-side becomes light transmission state once more, two kinds of cars are because almost not rotation, so still keep its original light transmission state, therefore might can not record correct reference position.

On the other hand, in order to obtain correct reference position, need do the detection hole of two kinds of cars very little, even make and under 1 step of motor drives, rotate slightly, also can leave transparency range really, still, if will detect the hole does very for a short time, then consider its job operation and, exist restriction, so can not do fully for a short time with detecting the hole because of light is difficult for situation by making that the sensitivity of photo detector descends.

In addition, in patent documentation 2, also there is same problem in the pointer position detection about hour hands.Promptly, in the pointer position of hour hands detects, light transmission be equipped with hour hands hour wheel the detection hole and during with the detection hole of this hour wheel meshed gears, be in the reference position though be judged as hour hands, but the angle that hour wheel is rotated under 1 step of motor drives is littler, with the anglec of rotation of its meshed gears also will never be big.Therefore, even how might motor to have rotated week, mutual detection hole still overlaps, and light still sees through.

Certainly,, yet there is the limit as described above, in reality, is difficult to realization as long as with hour wheel with do very for a short time with the detection hole of its meshed gears.

And the electronic equipment with such pointer position measuring ability is because its complex structure, compares with common clock and watch to trend towards maximizing, but from consumer's angle, requires miniaturization, and wish to develop to miniaturization.

Summary of the invention

Electronic equipment, the positions of members detection method of electronic equipment and the positions of members trace routine of electronic equipment of the decline of the supply voltage when the purpose of this invention is to provide a kind of position probing that can be suppressed at indicating device.In addition, other purpose of the present invention provides a kind of electronic equipment that can carry out the detection of pointer position effectively and can realize miniaturization.

The feature of electronic equipment of the present invention is to have: indicating device; Drive the indicating device driver element of this indicating device; Detect the positions of members detecting unit of the position of described indicating device; Control the control module of the driving of described indicating device driver element and positions of members pick-up unit; Drive the power supply of indicating device driver element and control module; With the voltage detection unit that detects this power source voltage, described control module detects action according to the positions of members of being controlled the positions of members pick-up unit by the detected supply voltage of voltage detection unit.

In addition, in the present invention, so-called indicating device is meant that the such indicating graduation that passes through of the pointer of clock and watch for example indicates such the passing through of the date wheel of the parts of information such as the moment and clock and watch to come the parts etc. of indication information to come the parts of indication information by mechanical action the position that scale moves to regulation.

In addition, the control of the positions of members detection action of control module is meant carries out following control, for example make the positions of members of implementing the positions of members pick-up unit under more than or equal to the situation of assigned voltage at detected supply voltage detect action, do not carry out positions of members at described supply voltage under less than the situation of described assigned voltage and detect action by voltage detection unit.

According to such the present invention, because control module is controlled the position probing action of indicating device according to supply voltage, so when supply voltage drops to less than assigned voltage, can stop positions of members detection action.Therefore, can prevent to make supply voltage drop to the situation of low-down value because of the positions of members pick-up unit that under the low state of supply voltage, drives based on optical sensor.

Therefore, for example using under the situation of optical sensor as the positions of members pick-up unit, though the light that the light-emitting component of optical sensor is sent weakens, the action of photo detector unstable and make that positions of members detects can not regular event and flase drop takes place survey, but in the present invention, owing under the low state of supply voltage, do not drive the positions of members pick-up unit,, can prevent the flase drop survey that positions of members detects so can prevent that supply voltage from becoming low value.

In addition, when supply voltage becomes low value, action failure takes place in control part that might be in electronic equipment and the storage unit etc., can cause the paralysis of system, but in the present invention, owing to can prevent that supply voltage from becoming low value, so can prevent the paralysis of locking system really.

And, owing to do not need to be provided with in order to prevent that supply voltage from becoming the jumbo electric capacity of keeping of low value, as long as the electric capacity of low capacity is set, so can realize the miniaturization and the slimming of electronic equipment.

In the present invention, preferred described control module detected supply voltage by voltage detection unit before positions of members detects action, under the situation of this supply voltage more than or equal to assigned voltage, the beginning positions of members detects action, under the situation of supply voltage, do not carry out positions of members and detect action less than assigned voltage.

According to such the present invention, owing to before positions of members detects action, detect supply voltage, detect action so can positively prevent under the low state of supply voltage, to implement positions of members, can prevent the flase drop survey of positions of members detection and the generation of systemic breakdown, and can not need the jumbo electric capacity of keeping, can realize the miniaturization and the slimming of electronic equipment.

In the present invention, preferred described control module detects in the course of action at positions of members and detects supply voltage by voltage detection unit, under the situation of this supply voltage, proceed positions of members and detect action, end positions of members at supply voltage under less than the situation of assigned voltage and detect action more than or equal to assigned voltage.

According to such the present invention, owing in positions of members detection course of action, detect supply voltage, so can positively prevent from making supply voltage descend because of implementing positions of members detection action, the result becomes and proceeds positions of members under the state of low magnitude of voltage and detect action, can prevent the flase drop survey of positions of members detection and the generation of systemic breakdown, and can not need the jumbo electric capacity of keeping, can realize the miniaturization and the slimming of electronic equipment.

In the present invention, preferred described control module detects in the course of action at positions of members and detects supply voltage by voltage detection unit, under the situation of this supply voltage more than or equal to assigned voltage, proceed positions of members and detect action, under the situation of supply voltage, stop positions of members and detect action, then less than assigned voltage, under supply voltage has reached situation more than or equal to assigned voltage, begin positions of members once more and detect action.

According to such the present invention, owing in positions of members detection course of action, detect supply voltage, so can positively prevent from causing supply voltage to descend because of carrying out positions of members detection action, become and carry out positions of members under the state of low magnitude of voltage and detect action, can prevent the flase drop survey of positions of members detection and the generation of systemic breakdown, and can not need the jumbo electric capacity of keeping, can realize the miniaturization and the slimming of electronic equipment.

And, detect in the process that action stops at positions of members, under supply voltage is charged to situation more than or equal to assigned voltage, detect action owing to can automatically begin positions of members once more, so can positively carry out the detection of indicating device, can improve convenience.

In addition, in each invention, the assigned voltage that becomes the comparison other of supply voltage can be identical magnitude of voltage, also can be different magnitudes of voltage.For example, only before detecting the action beginning, positions of members detecting supply voltage, in positions of members detection course of action, do not detect under the situation of supply voltage, preferably the assigned voltage that becomes the condition that detects the action beginning is set at than becoming the assigned voltage height that positions of members detects the action continuation condition in the course of action.

On the other hand, before positions of members detects action and in the positions of members detection course of action, detect under the situation of supply voltage, also can be set at identical magnitude of voltage to the assigned voltage that becomes the condition that detects the action beginning with the assigned voltage that becomes action continuation condition that detects at positions of members in the course of action, also can be set at different magnitudes of voltage.In addition, make under the different situation of each magnitude of voltage, also can for example set the assigned voltage that detects action beginning condition than higher, the assigned voltage that will become the action continuation condition that detects in the course of action is set at critical low-voltage, even, also can continue action to a certain degree so that after having begun to detect action, voltage decline has taken place.

In addition, detect under the situation that detects supply voltage in the course of action at positions of members, also can will become the assigned voltage of the condition that end to detect action and beginning once more as prerequisite, the assigned voltage that becomes the condition that stops to detect action is set at identical magnitude of voltage, or different magnitudes of voltage.In addition, making each magnitude of voltage is under the situation of different value, for example ending to detect under the situation of action, preferably set low assigned voltage, detect action so that can try one's best for a long time, beginning once more to detect under the situation of action, preferably set than the high assigned voltage of situation of ending to detect action, so that improve supply voltage as soon as possible, can begin to detect action once more.

And, detect under the situation that detects supply voltage in the course of action at positions of members, also can be set at identical magnitude of voltage to the assigned voltage that becomes the condition that stops to detect action with the assigned voltage that becomes the condition that begins to detect action once more, also can be set at different magnitudes of voltage.In addition, make under the different situation of each magnitude of voltage, for example, the assigned voltage that preferably will become the condition that begins to detect action is once more set than the assigned voltage height that becomes the condition that stops to detect action, its advantage is can not stop repeatedly at short notice and begin once more, can continue to detect action on certain degree.

Say that briefly as long as can set each assigned voltage independently of one another, the corresponding concrete setting of implementing to suit gets final product.

In the present invention, preferred described control module at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, dwindle the positions of members sensing range.

Here, so-called positions of members sensing range is meant and is detecting indicating device whether on the position of regulation the time, the scope that indicating device is moved.For example, under the situation of the indicating device that carries out 360 degree rotations as the pointer of clock and watch and date gear, the maximal value of this positions of members sensing range is the scope that makes indicating device carry out the rotation of 1 week, that is, and and the scopes of 360 degree.Therefore, compare, in order to dwindle the positions of members sensing range, as long as the anglec of rotation of indicating device is limited in for example 60 degree with the situation of carrying out the rotation of 1 week.

In addition, as long as the 2nd assigned voltage higher than the magnitude of voltage of assigned voltage specifically is, needs only the setting that suits according to situation about implementing.Briefly say, as long as the 2nd assigned voltage is set at magnitude of voltage described below, this magnitude of voltage is not set the positions of members sensing range if do not dwindle, then when the position probing action of implementing indicating device, supply voltage may drop to the magnitude of voltage of degree such as generation systems paralysis soon.That is, even as long as enforcing location in not dwindling the positions of members sensing range of restriction is detected action, the lower limit that supply voltage also can not drop to the magnitude of voltage of degree such as generation systems paralysis gets final product as the 2nd assigned voltage.

In such invention, be that 1.25V, the 2nd assigned voltage are under the situation of 1.30V for example setting assigned voltage, control module does not carry out positions of members at supply voltage during less than 1.25V and detects action.On the other hand, carry out positions of members in the scope that control module for example makes indicating device rotate a circle when supply voltage is 1.30V more than or equal to the 2nd assigned voltage and detect action.In addition, be 1.30V at supply voltage less than the 2nd assigned voltage, and when being 1.25V more than or equal to assigned voltage, control module detects action indicating device only being rotated carry out positions of members in the scopes of 30 degree.

Therefore, in the present invention, if supply voltage is elevated to more than or equal to the 2nd assigned voltage, then can increase the positions of members sensing range, can improve the probability that detects indicating device, even and increasing the positions of members sensing range, supply voltage can not drop to the degree that causes generation systems paralysis etc. yet.

In addition, supply voltage less than the 2nd assigned voltage and situation more than or equal to assigned voltage under owing to dwindled the positions of members sensing range, so, can correspondingly suppress the slippage of supply voltage.Therefore, even under the situation how many supply voltages decreases, can prevent that also supply voltage from detecting the degree that action drops to generation systems paralysis etc. because of positions of members.

In the present invention, preferred described control module at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, prolong the cycle that positions of members detects action.

Here so-called positions of members detects the cycle of action, be meant moving and after the moving of indicating device, drive the positions of members pick-up unit and the position probing action of the indicating device that carries out constitutes positions of members and detects cycle of treatment cycle (time interval) under the round-robin situation of handling by the ormal weight of indicating device (for example one of motor step drive amount).Therefore, interior cycle of treatment number tailed off the time lengthening of a cycle of treatment during the cycle length of so-called positions of members detection action was meant the unit interval (for example one minute).For example, when supply voltage is elevated to more than or equal to the 2nd assigned voltage, the pointer driving is set at for example 32Hz, the cycle that positions of members is detected action is set at 1/32 second and gets final product, less than the 2nd assigned voltage and more than or equal to assigned voltage the time, pointer driven for example be set at 16Hz, the cycle stretch-out that positions of members is detected action is set at 1/16 second and gets final product.

In addition, the 2nd assigned voltage needs only the setting that suits according to the enforcement situation so long as the magnitude of voltage higher than assigned voltage gets final product about its occurrence.Generally speaking, if as long as the 2nd assigned voltage is set at do not prolong sense cycle, then the supply voltage magnitude of voltage that may drop to the degree that causes generation systems paralysis etc. gets final product.That is, even as long as will not prolong sense cycle, supply voltage also can not move the lower limit of the magnitude of voltage that drops to the degree that causes generation systems paralysis etc. because of position probing and be set at the 2nd assigned voltage value and get final product.

In such the present invention, supply voltage less than the 2nd assigned voltage and situation more than or equal to assigned voltage under owing to prolonged the cycle that positions of members detects action, therefore can correspondingly suppress the slippage of supply voltage.That is, supply voltage descends owing to motor driven and positions of members detect action, returns to original voltage then gradually.Here, shorter if positions of members detects the cycle of action, then when supply voltage does not also recover,, ensuing motor driven and positions of members supply voltage is descended further become big, make that thus supply voltage reduces greatly because of detecting action.To this, if prolong the cycle that positions of members detects action, then owing to supply voltage before carrying out ensuing driving and positions of members detection action can recover, so can correspondingly reduce the decline of supply voltage.

In the present invention, preferred described control module at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, reduce the detected object that positions of members detects.

Here, the detected object of so-called positions of members detection is meant and is configured to be carried out each indicating device that positions of members detects respectively.

For example, constitute can be respectively independently to second hand and the time minute hand carry out under the situation of position probing, if supply voltage is more than or equal to the 2nd assigned voltage, then second hand and the time minute hand these both sides as detected object, if supply voltage is less than the 2nd assigned voltage and more than or equal to assigned voltage, then can be only second hand and the time minute hand a side as detected object.

And, constitute can be respectively independently to second hand, the time minute hand, date wheel carry out under the situation of position probing, if supply voltage is more than or equal to the 2nd assigned voltage, then second hand, the time minute hand, date wheel as detected object, if supply voltage is less than the 2nd assigned voltage and more than or equal to assigned voltage, then can be only second hand and the time minute hand as detected object.

In addition, the 2nd assigned voltage is so long as the magnitude of voltage higher than assigned voltage gets final product, and its occurrence needs only the setting that suits according to the enforcement situation.Generally speaking, if as long as the 2nd assigned voltage is not set at limits (minimizing) detected object, then the supply voltage magnitude of voltage that may drop to the degree that causes generation systems paralysis etc. gets final product.That is, even as long as will not limit detected object, supply voltage also can not move the lower limit of the magnitude of voltage that drops to the degree that causes generation systems paralysis etc. because of position probing and get final product as the 2nd assigned voltage.

In such the present invention, supply voltage less than the 2nd assigned voltage and situation more than or equal to assigned voltage under owing to reduced the positions of members detected object, so can correspondingly suppress the slippage of supply voltage.

In addition, in each invention, each the 2nd assigned voltage can be set independently of one another, can be set at identical magnitude of voltage, also can be set at different magnitudes of voltage, needs only the setting that suits according to the enforcement situation.

In the present invention, preferably have the boosting unit that the voltage of supplying with from power supply is boosted, described control module is controlled boosting unit according to the magnitude of voltage of described supply voltage, the change supply voltage.

For example under the situation of magnitude of voltage less than assigned voltage of supply voltage, control module also can not carry out positions of members and detect action, under more than or equal to assigned voltage and situation less than the 3rd assigned voltage, promote supply voltage by boosting unit, carry out positions of members and detect action, under situation, do not promote supply voltage and carry out positions of members detection action more than or equal to the 3rd assigned voltage.

In such the present invention,, therefore, can positively drive the driver element of positions of members pick-up unit and indicating device owing under the situation that what descend to some extent at supply voltage,, voltage can be improved by boosting by boosting unit.

In addition, the 3rd assigned voltage is so long as the magnitude of voltage higher than assigned voltage gets final product, and its occurrence needs only the setting that suits according to the enforcement situation.In addition, the 3rd assigned voltage can be the magnitude of voltage identical with the 2nd assigned voltage, also can be the magnitude of voltage different with the 2nd assigned voltage.

In the present invention, the positions of members counter that preferably has the position of expression indicating device, when described control module detects indicating device in positions of members detection action, described positions of members counter is modified to the value of regulation, makes indicating device and positions of members counter synchronisation.

In such the present invention, owing to make indicating device and positions of members counter synchronous exactly by positions of members detection action, so move indicating device in data according to the positions of members counter, when making the information of its indication (demonstration) regulation, can correctly indicate its indicated value.

In the present invention, preferred described positions of members pick-up unit has the light-emitting component of illuminating and the photo detector that used by light, described indicating device driver element has motor and by the gear set of motor driven, described gear set comprises and the 1st gear of the rotor pinion of described motor engagement, the 2nd gear of described indicating device is installed and is configured in the 3rd gear between these the 1st gears and the 2nd gear, on described the 1st gear to the 3 gears, be provided with the detection hole that the light between the described element is passed through on the position overlapped of plane each other mutually.

In such the present invention, basically be based on the position probing of utilizing the indicating device that seeing through of light implement with the 1st gear of rotor pinion engagement and the 3rd gear that arrives the 2nd gear, be equipped with on the 2nd gear of indicating device as long as the detection hole that does not stop this light transmission is set.At this moment, because the 1st, the 3rd gear is the gear near motor-side, so 1 of motor step drove relatively, its anglec of rotation is all bigger, even motor carries out the stepping rotation continuously, also be not easy to form and detect lasting overlapping phenomenon between the hole, therefore can improve accuracy of detection.

And, since the 1st to the 3rd gear by centralized configuration in the mutual plane overlapping areas, thereby can effectively utilize the space, can suppress the gear set structure and expand to diametric(al), can realize miniaturization.

In the present invention, preferred described indicating device driver element has: comprise be configured in the coaxial axle of described the 2nd gear on, and other gear set of the 4th gear of the indicating device different with described indicating device is installed; With other motor that drives this gear set, described positions of members detecting unit has other light-emitting component and the photo detector different with photo detector with described light-emitting component, with nonoverlapping position, described the 2nd gear plane on, and use described other light-emitting component and photo detector, the positions of members that is installed in the indicating device on described the 4th gear detects.

According to such the present invention, because the indicating device on being installed in the indicating device on the 4th gear and being installed in described the 2nd gear is respectively by the driving of different gear set, so can carry out the calibration of reference position by each indicating device of individual drive, can realize the position correction in the short time.In addition, owing to employed light-emitting component and photo detector in the positions of members detection that each indicating device also is set respectively,, improve reliability so can simplify testing circuit.

In the present invention, preferably with the number of teeth of the rotor pinion of described the 1st gearing mesh more than or equal to 8.

Rotor generally is made of with upper-part two parts that comprise rotor magnet and rotor pinion or two.In this case, in order positively to carry out the position probing of indicating device, require the N utmost point of rotor magnet or the S utmost point consistent with the phase place of the sense of rotation of rotor pinion profile of tooth.Under the inconsistent situation of the phase place of rotor pinion and rotor magnet, because the phase place of the sense of rotation of rotor pinion is by according to the steady stability position of the rotor of stator profile decision (being in the phase position of stable rotation direction at the state lower rotor part that does not apply motor pulse to coil) decision, so the phase deviation amount of rotor pinion is half gap of the profile of tooth of rotor pinion to the maximum, detection hole feasible and the 1st gear that rotor pinion meshes stops on the position with big phase deviation, can not carry out the position probing of indicating device thus exactly.And, in order to reduce moment of inertia, to control easily, set rotor pinion not quite usually, be up to 7 teeth.

But, for the phase place that makes rotor magnet and rotor pinion is consistent, not only need to control the polarity of rotor magnet, and the rotating deviation when not admitting of them fixedly, therefore, when the manufacturing of parts and assembling, waste time and energy very much, and yield rate is also low.

Therefore, in the present invention, the number of teeth that makes rotor pinion is more than or equal to 8, is preferably more than to equal 10, even the phase place generation maximum deviation of rotor magnet and rotor pinion can not produce substantial influence to the detection hole with the 1st gear of rotor pinion engagement yet.Therefore, do not worry phase place each other, can easily carry out parts manufacturing and assembling.

Preferably a kind of electronic watch of electronic equipment of the present invention, it has: according to the inside moment timing unit that carries out timing constantly from the reference signal of outputs such as vibrating circuit; Represent by the described inner moment display unit in the moment of timing unit timing constantly with the described indicating device of use.

As showing indicating device constantly, in the time of can using by indication usually, the pointer that constitutes of the hour hands of minute, second, minute hand, second hand.In addition, also can do indicating device of the present invention to the date wheel of calendar informations such as indication date, week etc.

If electronic apparatus application of the present invention in electronic watch, then owing to can utilize the positions of members pick-up unit to confirm the position of indicating devices such as pointer, so can confirm by the inside of inside timing unit timing constantly constantly (internal count value) with whether consistent by the indicated indication moment of indicating devices such as pointer, and under inconsistent situation, inside when detecting indicating device by affirmation can detect indicating device relative interior departure constantly constantly.Therefore, by detecting the position deviation amount of indicating device, can revise, so that it is inner constantly consistent with the indication of indicating device constantly, if even cause step motor generation misoperation or being impacted as the situation that clock and watch drop, cause the relative back shaft of indicating device to be moved, produce the deviation of the moment demonstration of indicating device because influenced by external magnetic field etc., also can show the correct moment by revising this deviation.Particularly, at electronic watch is under the situation of electric wave correction clock and watch, and it is waited in expectation can carry out high-precision moment demonstration, and the present invention is owing to can prevent the index error that the pointer deviation is caused, show so can realize the very high moment of precision, can improve satisfaction of customers.

Moreover, the present invention can prevent to make supply voltage become the situation of low-down magnitude of voltage owing to positions of members pick-up units such as driving optical sensor under the low state of supply voltage, can prevent the flase drop survey of positions of members detection and the systemic breakdown of control part, also can prevent from the position deviation of indicating devices such as pointer to provide pointing accuracy high clock and watch based on this point.

And, because only need being set, the electric capacity of low capacity gets final product, thus can realize the miniaturization of electronic watch, and can be applicable in the such miniature electric clock and watch of wrist-watch.

Electronic equipment of the present invention preferably has the inside moment timing unit that carries out timing constantly and uses the electronic watch of described indicating device demonstration by the moment display unit in the moment of described inner moment timing unit timing, the indicating device that is installed on described the 2nd gear is a minute hand, and described indicating device driver element has on the 2nd gear coaxial, be driven by back gear with the 2nd gearing mesh, and the hour wheel of hour hands is installed, on this hour wheel, also is provided with equitant detection hole, detection hole with described the 1st to the 3rd gear.

According to such the present invention, in carrying out the clock and watch that showed in 12 hours, because hour wheel was to be rotated one-period with 12 hours, so it can be one-period with 12 hours also that each of light transmission the from the 1st to the 3rd gear and hour wheel detects the moment in hole, can be a position of viewing area, for example, be set at the reference position of clock and watch, can easily carry out various controls based on the reference position as 12 position etc. just in time.

In the present invention, preferred described minute hand took the needle with the cycle smaller or equal to 5 seconds.

In the quartz clock of motor driven, based on reason such as the output torque of motor is little, compare with mechanical clock, in most cases the minute hand that looks very thin can only be installed.Particularly in sporting clock and watch, most clock and watch are that design of shell is bold and unconstrained, give a kind of tough and tensile impression of people, therefore wish to have the big minute hand that adapts with this outward appearance.

But, under the situation that big minute hand is installed,,, be uneconomic so can significantly shorten the life-span of battery owing to need drive the 2nd gear with big torque.

Therefore, in the quartz clock of the structure that second hand is driven by other motor and gear set, usually making minute hand was to take the needle one-period (or 20,30 seconds being one-period) with 10 seconds, and be to take the needle with the cycle smaller or equal to 5 seconds in the present embodiment, and correspondingly increased the number of teeth of gear set, increased reduction gear ratio.Like this, compare with the situation of using the gear set that took the needle in 10 seconds, can make the 2nd gear possess 2 times torque (for example under situation about taking the needle in 5 seconds), also can positively take the needle, can realize the good surface appearance design with few power consumption even bigger minute hand is installed.

In the present invention, preferably constitute the calendar display unit by other gear set different and the other motor that drives this other gear set with the described gear set that comprises described the 2nd gear and/or described the 4th gear.

Under situation with a gear set and calendar display unit such as motor driven time-division and calendar function, owing in the pin position probing that with 12 hours was one-period, can not determine difference and the date of AM and PM, therefore, after hour wheel, also need to establish gear (in embodiment described later, for example being a day transmitting gear 333) with detection hole.In this case, the time become the structure of carrying out the pin position probing by the detection hole overlaid that makes the gear more than 6 in the pin position probing of minute hand with gear set, constituted very complicated gear set structure.And in this structure, also existing and detecting the needed time is in the past 2 times, and carries out problems such as the maximization (or thickening) that the needed gear set of pin position probing causes and the assembling that makes gear set be complicated owing to having increased.

And in the present invention, gear set gear set and the motor different with motor of minute hand and second hand drives the calendar display unit when driving owing to use, so can shorten the pin position probing time, realizes the miniaturization of clock and watch and the simplification that pointer is used gear set.

More than, to above-mentioned the 4th gear, preferably use material such as light-proofness good metal to form as the 1st above-mentioned gear.In addition,, also can use synthetic resin to make, but in this case, consider light-proofness, preferably use the material of black series from the angle that reduces cost.

The invention provides a kind of positions of members detection method of electronic equipment, this electronic equipment comprises indicating device, drive the indicating device driver element of this indicating device, detect the positions of members pick-up unit and the power supply of the position of described indicating device, it is characterized in that, comprising: the voltage detecting step that detects described power source voltage; With according at the detected supply voltage of voltage detecting step, the positions of members that the positions of members of control positions of members pick-up unit detects action detects controlled step.

The invention provides a kind of positions of members trace routine of electronic equipment, this electronic equipment comprises indicating device, drive the indicating device driver element of this indicating device, detect the positions of members pick-up unit and the power supply of the position of described indicating device, it is characterized in that, the computing machine that is assembled in the described electronic equipment is carried out: the voltage detecting step that detects described power source voltage; With according at the detected supply voltage of voltage detecting step, the positions of members that the positions of members of control positions of members pick-up unit detects action detects controlled step.

The present invention also provides a kind of storage medium, it is characterized in that, this storage medium is the storage medium that records the embodied on computer readable of described positions of members trace routine.

In these inventions, can suppress supply voltage and descend, prevent that the flase drop of positions of members from surveying, generation with systemic breakdown, can reduce to keep the capacity of electric capacity, realize the miniaturization of electronic equipment, can reach effect and the effect identical with above-mentioned electronic equipment.

In addition, in the positions of members detection method of electronic equipment of the present invention, also can have: the voltage detecting step that before positions of members detects action, detects supply voltage by voltage detection unit; With under the situation of this supply voltage more than or equal to assigned voltage, the beginning positions of members detects action, does not carry out the positions of members that positions of members detects action under less than the situation of assigned voltage at supply voltage and detects controlled step.

In addition, in the positions of members detection method of electronic equipment of the present invention, also can have: detect the voltage detecting step that detects supply voltage in the course of action by voltage detection unit at positions of members; With under the situation of this supply voltage, proceed positions of members and detect action more than or equal to assigned voltage, end the positions of members that positions of members detects action under less than the situation of assigned voltage at supply voltage and detect controlled step.

In addition, in the positions of members detection method of electronic equipment of the present invention, also can have: detect the voltage detecting step that detects supply voltage in the course of action by voltage detection unit at positions of members; With under the situation of this supply voltage more than or equal to assigned voltage, proceed positions of members and detect action, under the situation of supply voltage less than assigned voltage, stop positions of members and detect action, then, under supply voltage has reached situation more than or equal to assigned voltage, begin the positions of members that positions of members detects action once more and detect controlled step.

In addition, in the positions of members detection method of electronic equipment of the present invention, also can have: at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, the positions of members that dwindles the positions of members sensing range detects controlled step.

In addition, in the positions of members detection method of electronic equipment of the present invention, also can have: at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, prolong the positions of members detection controlled step that positions of members detects the cycle of action.

In addition, in the positions of members detection method of electronic equipment of the present invention, also can have: at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, the positions of members that reduces the detected object of positions of members detection detects controlled step.

In addition, in the positions of members detection method of electronic equipment of the present invention, also can have the boosting unit that the voltage of supplying with from power supply is boosted, and have magnitude of voltage control boosting unit, the supply voltage change step of change supply voltage according to described supply voltage.

In addition, in the positions of members detection method of electronic equipment of the present invention, the positions of members counter that also can have the position of expression indicating device, and have when in positions of members detection course of action, detecting indicating device, by described positions of members counter being modified to the value of regulation, make the indicating device synchronizing step of indicating device and positions of members counter synchronisation.

In these each positions of members detection methods, also can reach effect and the effect identical with each invention of above-mentioned electronic equipment.

Description of drawings

Fig. 1 is the vertical view of the clock and watch of expression one embodiment of the present invention.

Fig. 2 is the vertical view of the described clock and watch of expression.

Fig. 3 is the sectional view of the described clock and watch of expression.

Fig. 4 is the amplification plan view of the major part of the described clock and watch of expression.

Fig. 5 is the sectional view of the major part of the described clock and watch of expression.

Fig. 6 is the block scheme of structure of the control module of the described clock and watch of expression.

Fig. 7 is the circuit diagram of the pointer position detecting unit of the described clock and watch of expression.

Fig. 8 is that the pointer position of the described clock and watch of expression detects the process flow diagram of handling.

Pointer position when Fig. 9 is the startup that is illustrated in described clock and watch/system reset detects the process flow diagram of handling.

Figure 10 is the process flow diagram that expression 0 of described clock and watch or 12 s' pointer position detects processing.

Figure 11 is that the pointer position of each whole branch of the described clock and watch of expression detects the process flow diagram of handling.

Figure 12 is that expression is because of motor driven with carry out the curve map that pointer position detects the change of the supply voltage cause.

Embodiment

Below, in conjunction with the accompanying drawings, one embodiment of the present invention is described.

Fig. 1 and Fig. 2 are the vertical view of expression as the clock and watch 1 of the electronic equipment of an embodiment of the present invention and electronic watch.In addition, Fig. 3 is the sectional side view of expression clock and watch 1.In these Fig. 1, Fig. 2 and Fig. 3, clock and watch 1 are to have by receiving as the standard wave that has been applied the external signal of time information to revise the electric wave amendment type clock and watch that show pin position detecting function constantly, are used to carry out showed in 12 hours.Clock and watch 1 have the pointer that shows pointer 2 (Fig. 3) constantly, drive pointer 2 with driver element 20, as the date wheel 30 (Fig. 2) of the calendar indication mechanism of show date (calendar), drive date wheel 30 calendar with the antenna 50 of driver element 31, the power supply incorporating section 41 of taking in battery 40, acceptance criteria electric wave, peripheral operation unit 5 and the chassis 10 that the user can operate from the outside, this chassis 10 is taken in also support fixation with driver element 20, date wheel 30, calendar with driver element 31, power supply incorporating section 41 and antenna 50 with pointer as housing.Chassis 10 forms the flat shape of circular, disposes the various component parts of clock and watch 1 on this chassis 10.

In addition, Fig. 1 is the figure that observes from the opposition side (bonnet side) of the moment demonstration side of clock and watch 1, and in the figure, last direction is 3 directions of clock and watch 1, and following direction is 9 directions, and right is 12 directions, and left is to being 6 directions.In addition, Fig. 2 is the figure that shows side observation clock and watch 1 from the moment, and in the figure, last direction is 3 directions of clock and watch 1, and following direction is 9 directions, and right is 6 directions, and left is to being 12 directions.

As pointer 2, second hand 2A, minute hand 2B and hour hands 2C are arranged, its substantial middle with chassis 10 is the center, be can be rotatably set on the same axle.These second hands 2A, minute hand 2B and hour hands 2C are set at and show side constantly, show constantly by the literal on the indication dial plate 3.

Pointer has the second hand motor 21 that drives second hand 2A with driver element 20 and drives the time minute hand motor 26 of hour hands 2C and minute hand 2B.In addition, between second hand 2A and second hand motor 21, be provided with the second hand that is passed to second hand 2A from the driving force of second hand motor 21 with train of reduction gears 22, hour hands 2C and minute hand 2B with the time be provided with between the minute hand motor 26 from the time minute hand motor 26 driving force be passed to hour hands 2C and minute hand 2B the time minute hand with train of reduction gears 27.

Fig. 4 extracts pointer to amplify the figure that represents with driver element 20.As this Fig. 4 and above-mentioned shown in Figure 1, second hand motor 21 is made of step motor, comprises rotor 211 with rotor magnet 211B, the rotatably stator 212 and the coil 213 that is connected with stator 212 of support rotor 211.Second hand motor 21 is configured on roughly 9 directions of clock and watch 1, is configured to the center side that rotor 211 is positioned at chassis 10, and coil 213 is positioned at the state of the outer circumferential side on chassis 10.Second hand with train of reduction gears 22 comprise be integrally formed in rotor pinion 211A engagement on the rotor 211 second neutral gear 221 and with the second gear 222 of conduct the 4th gear of neutral gear 221 engagements second.Be fixed with second hand 2A in second on the gear 222.When motor pulse flows through coil 213, in stator 212, form magnetic circuit by electromagnetic induction, rotor 211 rotates half cycle under a pulse.This order according to rotor pinion 211A, second neutral gear 221 and second gear 222 of rotatablely moving in turn is decelerated with suitable reduction gear ratio to be transmitted simultaneously, and second hand 2A is rotated with 1 second fixing speed of a pulse.

The detection of gear second of second neutral gear 221 and 12 positions that are used to detect second hand 2A 223 meshes.On the overlapped zone of second neutral gear 221 and second detection of gear 223, form respectively and detect hole 221A, 223A, be the phase settings of second neutral gear 221 and second detection of gear 223: when second hand 2A was configured on 12 the position, these positions of detecting hole 221A, 223A were consistent.That is 12 reference positions that the position is second hand 2A.Here, second detection of gear 223 is owing to form the diameter dimension identical with second gear 222, so once the position is consistent in one minute for detection hole 221A, 223A.

On the corresponding to position of detection hole 221A, 223A, be provided with not shown optical sensor.Optical sensor has light-emitting component and photo detector, and these light-emitting components and photo detector are configured in the both sides on the thickness direction of second neutral gear 221 and second detection of gear 223, is configured to the opposed state of these gears of sandwich.When second neutral gear 221 with second detection of gear 223 rotations make detect hole 221A, when 223A is consistent, the light that sends from the light-emitting component of optical sensor is received by photo detector by detecting hole 221A, 223A, therefore, can detect the situation that second hand 2A is in 12 points (0 second) position.In addition, in the present embodiment, the material of second gear 222 and second detection of gear 223 is a metal, and the material of second neutral gear 221 adopts the synthetic resin of high-quality, to reduce cost.In addition, as synthetic resin, consider that the part except detecting hole 221A need have good light-proofness to detecting light, so preferably adopt the resin of black system.

In addition, the second hand position detection unit of the position of such detection second hand 2A is not limited to use transmission-type optical sensor, also can use for example reflection type optical sensor, in addition, be not limited to detect by making that hole 221A, 223A are consistent to be detected, also can utilize Hall element to read the position that this magnetic chart shape is detected second hand 2A by for example on the circumference of second detection of gear 223 and second neutral gear 221, forming magnetic chart shape (pattern).

The time minute hand motor 26 constitute by step motor equally with second hand motor 21, comprise rotor 261 with rotor magnet 261B, the rotatably stator 262 and the coil 263 that is connected with stator 262 of support rotor 261.The time minute hand motor 26 be configured on roughly 3 the direction of clock and watch 1, be configured to make rotor 261 to be positioned at the center side on chassis 10, make coil 263 be positioned at the outer circumferential side on chassis 10.

The time minute hand with train of reduction gears 27 comprise with five kinds of cars 271 of conduct the 1st gear that is formed on the rotor pinion 261A engagement on the rotor 261, with three kinds of cars 272 of conduct the 3rd gear of five kinds of cars, 271 engagements, with two kinds of cars 273 of conduct the 2nd gear of three kinds of cars, 272 engagements, with the back gear 274 of two kinds of cars, 273 engagements, with the hour wheel 275 of back gear 274 engagements.Two kinds of cars 273 and hour wheel 275 be configured to second gear 222 on same axle, fixing minute hand 2B on two kinds of cars 273, fixing hour hands 2C on hour wheel 275.When in coil 263, when crossing motor pulse,, in stator 262, form magnetic circuit by electromagnetic induction with 5 seconds periodic flow, make rotor 261 under a pulse, rotate half cycle.This order according to rotor pinion 261A, five kinds of cars 271, three kinds of cars 272, two kinds of cars 273 of rotatablely moving is decelerated with suitable reduction gear ratio (speed increasing ratio) successively to be transmitted simultaneously, and two kinds of cars 273 and minute hand 2B are rotated with the speed in one hour one week.In addition, rotatablely moving of two kinds of cars 273 transmitted with suitable reduction gear ratio (speed increasing ratio) deceleration successively according to the order of back gear 274, hour wheel 275 simultaneously, and hour wheel 275 and hour hands 2C are rotated with the speed in 12 hours one weeks.

In addition, in the present embodiment, the number of teeth of rotor pinion 261 is 10, more than 7 under the situation of common quartz clock.Rotor 261 is made of rotor magnet 261B and these two parts of rotor pinion 261A, such as described later, in order to carry out the pin position probing of pointer 2 effectively, require the N utmost point or the S utmost point of rotor magnet 261B consistent in normal circumstances with the phase place of flute profile on sense of rotation of rotor pinion 261A, but in the present embodiment, the number of teeth of rotor pinion 261A is made as 10, even the phase place of rotor magnet 261B and rotor pinion 261A produces maximum deviation, can not produce substantial influence to detection hole 271A (Fig. 5) with five kinds of cars 271 of rotor pinion 261A engagement yet.In addition, the rotor pinion 211A of formation second hand motor 21 also is same.

As shown in Figure 5, on the overlapped zone on five kinds of cars 271, three kinds of cars 272, two kinds of cars 273, second gear 222 and the hour wheels 275, be formed with respectively and detect hole 271A, 272A, 273A, 222A, 275A.It is configured to when hour hands 2C, minute hand 2B and second hand 2A are configured on 12 the position, and these detect the position consistency of hole 271A, 272A, 273A, 222A.That is, second hand 2A not only, the reference position of hour hands 2C and minute hand 2B also is 12 positions.

Detecting on hole 271A, 272A, 273A, 222A, the 275A consistent location, be provided be located at second hand motor 21 on the identical transmission-type optical sensor of sensor, when detecting the position consistency of hole 271A, 272A, 273A, 222A, 275A, the light that sends from light-emitting component 6 is received by photo detector 7, detect, detect hour hands 2C, minute hand 2B and second hand 2A thus all 12 positions, promptly be positioned at the state of reference position.Therefore, in the present embodiment, light-emitting component 6 is installed on the circuit module 6A, and this circuit module 6A is configured between chassis 10 and the solar panel 4; In addition, photo detector 7 is installed on the circuit module 7A that has covered gear set pedestal 8, and disposes 5 gears 271,272,273,222,275 between these elements 6,7.At this moment, in order not hinder printing opacity, on chassis 10, also be provided with light hole 10A.And, the time minute hand with in the train of reduction gears 27, five kinds of cars 271 and three kinds of cars 272 are also same with above-mentioned second neutral gear 221, adopt synthetic resin to constitute.

And, in the clock and watch 1 of the present embodiment of carrying out showing in 12 hours, because the reference position of pointer 2 was with 12 hours loop cycle, so detect hole 275A by on the hour wheel 275 of rotating with 12 hours cycle equally, being provided with, can be specific these positions, 12 positions on 360 degree viewing areas, the reference position of the pointer 2 that comprises hour hands 2C.In addition, be used to detect the pointer position detecting unit that such pointer 2 is in the situation on the reference position and can similarly adopt detection method arbitrarily with the second hand position detection unit.In addition, the position of each element 6,7 relation also can be opposite.

Here, play an important role in the pin position probing in detecting hole 271A, 272A, 273A, 222A, 275A in reality, be with the detection hole 271A of five kinds of cars 271 of rotor pinion 261A engagement and with the detection hole 272A of three kinds of cars 272 of its engagement.The rotating speed of other gear 273,222,275 of the rotating ratio of these gears 271,272 is fast, is equivalent to an impulse duration of motor pulse during detecting that hole 271A, 272A coincide.Therefore, use detection hole 271A, 272A to carry out the pin position probing, compare with the situation that detection hole 273A, 275A that a plurality of impulse durations that only use at motor pulse might continue to overlap carry out detecting the reference position, pointer 2 can be aligned on the reference position exactly.Thus, as long as be reduced to machinable scope for the aperture of detecting hole 271A, 272A, and for the aperture of the detection hole 273A of other gear 273,222,275,222A, 275A can be processed into be not blocked in detect the degree that sees through light among hole 271A, the 272A fully greatly.

But in the present embodiment, the detection hole 271A of five kinds of cars 271 ratio is big with the detection hole 272A of three kinds of cars 272 of its engagement, is set to identical with the detection hole 273A of two kinds of cars 273.Specifically be, the aperture of detection hole 273A, the 275A of two kinds of cars 273 and hour wheel 275 is 0.5mm, and the three kinds of cars 272 and the detection hole 272A of second gear 222, the aperture of 222A are 0.4mm, and the aperture of the detection hole 271A of five kinds of cars 271 also is 0.5mm.

This is because as described above the number of teeth with the rotor pinion 261A of five kinds of cars 271 engagement is set at 10, mutual phase place misalignment.That is,, only need to strengthen the detection hole 271A that five kinds of cars 271 are set, just can absorb this departure, can not need to carry out phase alignment thus even when phase place produces deviation.Second neutral gear 221 sides also be same.

And, as present embodiment, respectively by independent motors 21,26 drive minute hand 2C, 2B when having the time minute hand with train of reduction gears 27 and second hand with second hand 2A with train of reduction gears 22, and on this basis, on the position that the two kinds of cars 273 of minute hand 2C, 2B and hour wheel 275 do not overlap when having installed second detection of gear 223 is set in the plane, utilize this locational optical sensor to detect the reference position of second hand 2A independently, so, by make second hand 2A and the time minute hand 2C, 2B rotation efficiently independently of each other, but the alignment fiducials position.In addition and since the time minute hand 2C, 2B minute hand motor 26 when independent drive, so, for example help carrying out the time difference to revise.

In addition because the detection hole 222A of second gear 222 and the time minute hand position detection part coincide, so when carrying out the pin position probing, need carry out the detection of 2 gear sets in order actual.That is, at first detect second hand, the detection hole 222A of second gear 222 is aligned on the regular phase place with the position of train of reduction gears 22, and then the position of minute hand usefulness train of reduction gears 27 when detecting.

As depicted in figs. 1 and 2, date wheel 30 is configured on chassis 10 in the face of being provided with the opposition side of pointer with driver element 20 1 sides.As shown in Figure 3, above date wheel 30 (being side nearby in Fig. 2) at drawing, be provided with the dial plate 3 of garden plate-like, on the part of the peripheral part of this dial plate 3, be provided with the window portion (not shown) that is used to show date, can confirm a part as the date wheel 30 on date from window portion.Dial plate 3 is made of the material that glass etc. has light transmission, between dial plate 3 and chassis 10, disposes the solar panel 4 as the generator unit that utilizes incident light to generate electricity.

Turn back to Fig. 2 again, date wheel 30 forms ring-type, is configured between solar panel 4 and the chassis 10, is formed with annular wheel 32 on the inner peripheral surface of date wheel 30.On the face of dial plate 3 sides of date wheel 30, show the literal that waits the expression date that forms by printing from " 1 " to " 31 ".

As shown in Figure 1, calendar with driver element 31 and second hand motor 21 and the time minute hand motor 26 identical, constitute by step motor, have rotor 311, stator 312 and coil 313.Calendar is configured in roughly 5 the direction of clock and watch 1 with driver element 31, and is configured to make rotor 311 to be positioned at the center side on chassis 10, makes coil 313 be positioned at the outer circumferential side on chassis 10.

Between date wheel 30 and calendar are with driver element 31, be provided with the calendar usefulness gear set 33 that is passed to date wheel 30 from calendar with the driving force of driver element 31.Calendar with gear set 33 have with rotate the day that is integrally formed in the rotor pinion 311A engagement on the rotor 311 the 1st neutral gear 331, with day rotate 331 engagements of the 1st neutral gear rotate day the 2nd neutral gear 332, with the day transmitting gear 333 that day rotates 332 engagements of the 2nd neutral gear.Day transmitting gear 333 connects chassis 10.Has gear 333A in dial plate 3 sides, annular wheel 32 engagements of this gear 333A and date wheel 30.In addition, the position of the in-plane of date wheel 30 is determined by the engagement of gear 333A and annular wheel 32, therefore, the jumper of the location that is used for date wheel in the past is not set.

When motor pulse flows through coil 313, in stator 312, produce magnetic circuit by electromagnetic induction, make rotor 311 rotations.This rotation is transmitted successively according to the order of rotor pinion 311A, day rotation the 1st neutral gear 331, day rotation the 2nd neutral gear 332 and day transmitting gear 333, and the rotation of day transmitting gear 333 is rotated date wheel 30, and the shown date is changed.

Here, calendar is compared the more outer circumferential side (outside) that is configured in chassis 10 with driver element 31 with pointer with driver element 20.Therefore, from calendar with the rotation center of the rotor 311 of driver element 31 to the distance of the rotation center of pointer 2 greater than from pointer with the rotation center of the rotor 211,261 of driver element 20 (second hand motor 21 and time minute hand motor 26) respectively to the distance of the rotation center of pointer 2.

In power supply incorporating section 41, taken in battery 40.Battery 40 is secondary cells, can will be charged in this battery 40 by solar panel 4 electricity.Power supply incorporating section 41 is configured in roughly 1 the direction of clock and watch 1, is positioned at the outer circumferential side on chassis 10.

Here, the more outer circumferential side (outside) that is configured in chassis 10 is compared with pointer in power supply incorporating section 41 with driver element 20.Therefore, the distance from the approximate centre (center of circular batteries 40) of power supply incorporating section 41 to the rotation center of pointer 2 greater than from pointer with the rotation center of the rotor 211,261 of driver element 20 (second hand motor 21 and time minute hand motor 26) respectively to the distance of the rotation center of pointer 2.

Antenna 50 has antenna core 51, take in the core incorporating section 52 of antenna core 51 and be wrapped in coil 53 on the part of core incorporating section 52.

Antenna core 51 constitutes by lamination multi-disc amorphous state thin plate, has the line part that is roughly rectangular shape 511 that is formed on the substantial middle place and 10 outer rim forms the roughly bend 512 of arc-shaped bend along the chassis in the both end sides of line part 511.

Core incorporating section 52 is made of insulating material, and is same with antenna core 51, has the line part that is roughly rectangular shape 521 that is formed on the substantial middle place and 10 outer rim forms the roughly bend 522 of arc-shaped bend along the chassis in the both end sides of line part 521.In core incorporating section 52, be formed with concavity portion at it in the face of on the face on chassis 10, in this concavity portion, taken in antenna core 51.By core incorporating section 52 being fixed on the chassis 10, and antenna 50 is fixed on the chassis 10 with screw.

Coil 53 is wrapped on the line part 521 of core incorporating section 52.Two ends at the line part 521 of core incorporating section 52 are formed with flange part 523, and this flange part 523 prevents the lax of coil 53, thereby form the coil that has the regulation number of turns uniformly.

On a bend 522 of core incorporating section 52, be fixed with the circuit board 54 that is connected with the end of coil 53.Circuit board 54 is the flexible PCBs that are made of insulating material, on this circuit board 54, a plurality of electric capacity 541 as the electronic component of the resonance frequency adjustment usefulness of antenna 50 is installed.This circuit board 54 and circuit module 7A (Fig. 5) conducting that is positioned at the bonnet side of 52 ends, core incorporating section.

This circuit module 7A is except above-mentioned photo detector 7, also has quartz vibrator that the timing that is omitted illustrated generation reference clock signal uses, CPU, only makes reception that bandpass filter that the standard wave signal passes through handles with quartz vibrator with to the standard wave that is received by antenna 50 with IC (receive and use circuit) etc.CPU have by the frequency of the quartz vibrator that future, self clock was used carry out frequency division generate reference clock frequency dividing circuit, by reference clock is counted the timing circuit that carries out timing and according to from the information Control pointer of timing circuit with driver element 20 and calendar with the control circuit of driver element 31 etc.In addition, receive to have the standard wave that is received by antenna 50 is carried out the demodulator circuit of demodulation and amplifies the amplifying circuit etc. of received signal with IC.

Peripheral operation unit 5 has turning handle 5A on roughly 3 directions that are configured in clock and watch 1, is configured in roughly 2 directions of clock and watch and the not shown button on 4 directions roughly respectively.Turning handle 5A has the function according to the change-over switch of the changeable a plurality of patterns of the different amounts of extracting, and for example when turning handle 5A is extracted one section, becomes the manual adjustment pattern of date wheel 30, by pressing the button date wheel 30 is rotated.In addition, for example when turning handle 5A is extracted two sections, become adjustment modes constantly,, pointer 2 is rotated by pressing the button.

In addition, by pressing the button, but display message for example, when pressing the button, can show the reception result (whether receive success) of last standard wave under the state of not extracting turning handle.The demonstration of this reception result is set to, and is for example receiving under the case of successful, and second hand 2A is expressed as 10 seconds, and under situation about taking defeat, second hand 2A is expressed as 20 seconds.The demonstration of this reception result continues official hour (for example 5 seconds), and after having passed through official hour, second hand 2A turns back to original position, shows the current moment.In addition, come in operation under the situation of acceptance criteria electric wave forcibly by button, also can be in action button according to the position of second hand 2A show whether be in can the environment of acceptance criteria electric wave in.

And, when assembling clock and watch 1, as shown in Figure 5, at first chassis 10 is placed on the assembling fixture 700.At this moment, the register pin 600 (shown in double dot dash line) that is set on the anchor clamps 700 is connected among the light hole 10A that inserts chassis 10.On chassis 10, dispose two kinds of cars 273, three kinds of cars 272, five kinds of cars 271, second gear 222 then in order.At this moment, each detects hole 273A, 272A, 271A, 222A also are embedded into register pin 600.In addition, though omitted diagram, in configuration back gear 274, also the pilot hole 274A (Fig. 4) that is set on the back gear 274 is embedded the register pin of stipulating.

Equally, second neutral gear 221 also is in configuration the detection hole 221A, the 223A that are arranged on these gears to be embedded the register pin of stipulating with second detection of gear 223.Use register pin 600 and other register pin then, under the state of the configuration of having finished whole gear 271,272,273,222, install, make hour hands 2C, minute hand 2B and second hand 2A (Fig. 3) be positioned at 12 position.Thus, detect at light transmission under the state of hole 271A, 272A, 273A, 222A, 221A, 223A, pointer 2 is aligned on 12 the position as the reference position.In addition, hour wheel 275 is owing to be configured in respect to chassis 10 in dial plate 3 one sides, so the device in an assembling way uses other detent mechanism to be configured after register pin 600 takes off.In fact, in assembling during hour wheel 275, be basis of reference with the detection hole 273A of two kinds of cars 273, hour wheel 275 is assembled on the detection hole 275A that makes hour wheel 275 and the position that the detection hole 273A of two kinds of cars 272 overlaps fully.

[structure of control module]

Below, with reference to Fig. 6 the structure of the control module of the action of control clock and watch 1 is described.

Control module 400 has and has disposed for example circuit structure of IC (integrated circuit) and various electronic units etc., is used to implement the timing of clock and watch 1 and revises constantly.

Specifically be that control module 400 has frequency dividing circuit 401, drive signal generation circuit 402, moment display driver circuit 403, inner counting unit 404 constantly, pointer position detecting unit 405, pointer position counting unit 406, pointer position inner comparing unit 407, voltage detection unit 408 and control part 409 constantly.

Here, control part 409 is used to control frequency dividing circuit 401, drive signal generation circuit 402, receiving element 430, inner counting unit 404 constantly, pointer position inner comparing unit 407, pointer position detecting unit 405 and voltage detection unit 408 constantly, will narrate in the back about concrete control method.

Frequency dividing circuit 401 Be Controlled portions 409 control, and the oscillator signal from oscillatory circuit 410 outputs is carried out frequency division, the signal of output assigned frequency.For example, frequency dividing circuit 401 outputs to drive signal generation circuit 402, inner counting unit 404 and control part 409 constantly to the pulse signal of the 1Hz of frequency division etc.

In addition, oscillatory circuit 410 makes the source driving signal generation higher-orders of oscillation such as quartz vibrator, and output is by the oscillator signal that this higher-order of oscillation produced, because these are known, so omit explanation.

Drive signal generation circuit 402 is to produce to drive the circuit of the signal of display driver circuit 403 constantly.

Display driver circuit 403 is to drive the circuit of display unit 420 constantly constantly.The moment display unit 420 of present embodiment is the simulation display type moment display unit with motor 21,26, calendar usefulness driver element (calendar motor) 31 and pointer 2, date wheel 30.In addition, constitute the indicating device of indication time information by pointer 2 and date wheel 30, by second hand motor 21, the time minute hand motor 26 and calendar driver element (calendar motor) 31 constitute the indicating device driver element of driving indicating devices.And, constantly display driver circuit 403 drive controlling second hand motors 21, the time minute hand motor 26 and calendar with driver element (calendar motor) 31.

Inner counting unit 404 constantly is made of various counters, for example by storage time sign indicating number preset conuter etc. constitute.And, constantly storing the moment data that receive by receiving element 430 in the counting unit 404 in inside, this stored moment is data based comes the signal of self frequency-dividing circuit 401 to be updated.Therefore, the current time information of the current time of storage/counting expression always in inside moment counting unit 404.

Receiving element 430 is used to receive the standard wave with moment data.That is receiving element 430 tuned circuit that has antenna 50 and constitute, by tuning capacity etc.And receiving element 430 constitutes and utilizes antenna 50 to be received in the long wave standard wave of the frequency of setting in the tuned circuit under the control of control part 409.As the long wave standard wave of this reception, it is two kinds of frequencies of the standard wave output station of the standard wave output station of " big hawk bird paddy mountain (east Japan) " of 40kHz and " plumage Kingsoft (west Japan) " that transmission frequency is 60kHz that transmission frequency is for example arranged in Japan.

In addition, receiving element 430 has not shown amplifying circuit, bandpass filter, demodulator circuit, decoding circuit etc., extracts the time information as numerical data from the long wave standard wave that receives, that is, and and timing code.This timing code that extracts is outputed in the inner counting unit 404 constantly.

As shown in Figure 7, the pointer position detecting unit 405 as the positions of members pick-up unit has the position that detects second hand 2A, the second hand position detection unit 405A of output second hand position detection signal; With the position that detects minute hand 2B and hour hands 2C, the time minute hand position detection unit 405B of minute hand position detection signal during output.

Second hand position detection unit 405A and the time minute hand position detection unit 405B have as the light emitting diode (LED) 451 of light-emitting component 6 with as the phototransistor 452 of photo detector 7.

And, control part 409 make second hand with and the time minute hand gear set used carry out an action that goes on foot, release from gear set, make the conducting of emitter formation from VDD to VSS of phototransistor 452, formation can be subjected to the state of light, make transistor 454 conductings,, make LED 451 luminous by flowing through steady current to LED 451 as the switch of constant current source 453.Promptly, in the present embodiment, as shown in figure 12, be used to drive the pulse signal that pointer position detecting unit 405 carries out position probing and be output between each driving pulse of step motor, make this output time not overlapping with the output time of the driving pulse of step motor.

According to the phase place of gear set, when detecting the hole coincidence, the light of LED 451 is irradiated onto on the phototransistor 452, makes electric current flow through phototransistor 452.So, from second hand position detection unit 405A and the time minute hand position detection unit 405B output detection signal, thereby detect pointer position.

In the present embodiment, when second hand position detection unit 405A is in 0 second position at second hand 2A, output second hand position detection signal, the time minute hand position detection unit 405B when minute hand 2B and hour hands 2C are in the position of 0: 0 of morning or afternoon 0: 0, minute hand position detection signal during output.

In addition, the resistance value of the resistance 455 that is connected with phototransistor 452 if second hand position detection unit 405A and the time be respectively best value among the minute hand position detection unit 405B.In addition, if set resistance value, also can in each detecting unit 405A and 405B, set identical resistance value.

Pointer position counting unit 406 is being reset when pointer position detecting unit 405 receives the pointer position detection signal, simultaneously to counting from the drive signal of drive signal generation circuit 402.It is corresponding with the position of pointer 2 to be controlled to the count value that makes pointer position counting unit 406 therefrom.Therefore, constitute positions of members counter of the present invention by pointer position counting unit 406.

Comparing unit 407 of the inner moment of pointer position will compare with the pointer position data of counting in pointer position counting unit 406 in the inside moment data (current time data) of inside moment counting unit 404 countings, under inconsistent situation, carry out the inner correction of counting unit 404 constantly or the correction of pointer 2 and pointer position counting unit 406.

Voltage detection unit 408 detects the voltage of the Reserve Power Division 40 of having put aside the electric energy that is generated electricity by Power Generation Section 440, the voltage detection signal of this magnitude of voltage of output expression.This voltage detection signal is output to control part 409 and pointer position detecting unit 405.

Control part 409 carries out the indication that pointer position detects the change of forbidding of action or pointer position detection method according to the voltage (supply voltage) by voltage detection unit 408 detected batteries as power supply (Reserve Power Division) 40 to pointer position detecting unit 405.

Power Generation Section (solar panel) the 4th obtains external energies such as sunshine, converts thereof into the solar generator (solar cell) of electric energy.But, as Power Generation Section 4, be not limited to solar panel, also can become the various generators such as electromagnetic generator, thermal electric generator and piezoelectric generator of electric energy to constitute by power conversion with rotary hammer.

Such clock and watch 1 carry out following action.

From the oscillator signal of transtation mission circuit 410 output at the frequency dividing circuit 401 of control module 400 by frequency division, generate drive signals at drive signal generation circuit 402.Pointer position counting unit 406 is counted the pointer position data according to this drive signal, drive simultaneously second hand motor 21 and the time minute hand motor 26.Second hand motor 21 and the time minute hand motor 26 rotatablely move by second hand with train of reduction gears 22 and the time minute hand be passed to second hand 2A, minute hand 2B and hour hands 2C respectively with train of reduction gears 27, rotate by making these pointers, on the dial plate 3 of clock and watch 1, show constantly.

When receiving the standard wave that is loaded with moment data by antenna 50, receiving element 430 extracts data constantly from standard wave, and outputs in the inner counting unit 404 constantly.Control part 409 according to these moment data to revising by the pointer position data of pointer position counting unit 406 timing, drive second hand motor 21 and the time minute hand motor 26, the demonstration of revising pointer 2 is constantly.

And during the timing circuit timing to 24 in CPU, CPU drives calendar with driver element 31, and date wheel 30 is carried out the driving of component on the one.

In addition, clock and watch 1 are revised the pointer position detection action of the position of pointer 2 in the predefined time.

[pointer position detects action]

Detection action to the pointer position in the clock and watch 1 describes.

As shown in Figure 8, the control part 409 of clock and watch 1 is in when starting or when being in system reset (step 1 below simply is expressed as " S " with " step ") detecting clock and watch 1, the pointer position detection processing (S10) when carrying out startups/system reset.

In addition, whether the inside that control part 409 is judged in inside counting unit 404 countings constantly (current time) constantly is 0: 0: 0 or 12 o'clock 0 minute 0 second (S2), if at this constantly, the pointer position of then carrying out or at 0 at 12 detects handles (S30).

And control part 409 judges whether the inside moment (current time) of inner 404 countings of counting unit constantly is each whole branch, that is, 0 second (S3), if should be constantly, then carrying out whenever, the pointer position of whole branch detects processing (S60).

That is,, therefore, must carry out pointer position and detect owing to when the startup of clock and watch 1 or during system reset, in pointer position counting unit 406, do not have pointer position information.Therefore, when control part 409 is activated or resets at clock and watch 1, carry out pointer position and detect treatment S 10.

In addition, control part 409 every the position of hour hands 2C of detection in 12 hours and minute hand 2B, detected the position of a second hand 2A every one minute in the common process that takes the needle.

[pointer position during startup/system reset detects and handles]

Below, in conjunction with Fig. 9, the pointer position during to startup/system reset detects treatment S 10 and describes.

In pointer position detected treatment S 10, at first, more than or equal to assigned voltage (being 1.30V in the present embodiment) (S11) whether the voltage (supply voltage VDD) that control part 409 working voltage detecting units 408 are judged Reserve Power Division 40.

In S11, if supply voltage VDD less than assigned voltage (1.30V), then control part 409 detection of carrying out supply voltage is repeatedly handled, till supply voltage VDD becomes more than or equal to assigned voltage.

On the other hand, in S11, if supply voltage VDD more than or equal to assigned voltage, then control part 409 makes pointer position detecting unit 405 action, carries out the detection of pointer position and handles.In the present embodiment, at first make second hand position detection unit 405A action, carry out the position probing of second hand 2A and handle (S12).Specifically be that the transistor 454 of control part 409 control second hand position detection unit 405A makes LED 451 luminous.At this moment, only in the detection hole between LED451 and phototransistor 452 time of gear set second, phototransistor 452 just can detect this light, second hand position detection unit 405A output second hand position detection signal.

Whether control part 409 bases have exported described second hand position detection signal is judged whether detect the situation (S13) that second hand 2A is positioned at 0 second position in second hand position probing treatment S 12.

Here, under the situation of not exporting the second hand position detection signal, control part 409 detects supply voltage VDD again whether more than or equal to assigned voltage (S14).Then, if supply voltage VDD less than assigned voltage, then control part 409 stopped the second hand position probing and handles (S15) before supply voltage VDD becomes more than or equal to assigned voltage by charging.

On the other hand, at S14, when detecting supply voltage VDD more than or equal to assigned voltage, control part 409 carries out the driving (S16) in a step by drive signal generation circuit 402 output drive signals (pulse) to second hand motor 21.

After second hand 2A moved, control part 409 was implemented the position probing of second hand 2A once more and is handled (S12), judges whether to detect second hand 2A (S13).

If carry out the processing of above S12～S16 repeatedly, then move a week at second hand 2A (60 seconds) during, can detect second hand 2A at S13.

When S13 detected second hand 2A, control part 409 detected supply voltage VDD once more whether more than or equal to assigned voltage (S17), was becoming the detection processing of carrying out supply voltage more than or equal to assigned voltage (being 1.30V in the present embodiment) before repeatedly.

517, as supply voltage VDD during more than or equal to assigned voltage, minute hand position detection unit 405 actions when control part 409 makes are carried out the position probing of minute hand 2B and hour hands 2C and are handled (S18).Specifically be that the transistor 454 of minute hand position detection unit 405B makes LED451 luminous during control part 409 controls.At this moment, when having only detection hole when the time-division gear set between LED 451 and phototransistor 452, this light could be detected by phototransistor 452, the time minute hand position detection signal during minute hand position detection unit 405B output.

Control part 409 according to whether exported minute hand position detection signal when described judge the time whether detect hour hands 2C in the minute hand position probing treatment S 18 and minute hand 2B be positioned at 0: 0 situation (S19) of position of (or 12: 0).

Here, when not exporting under the situation of minute hand position detection signal, control part 409 is identical with S14～S16, whether detects supply voltage VDD more than or equal to assigned voltage (S20), and the minute hand position probing is handled (S21) when stopping before supply voltage VDD becomes more than or equal to assigned voltage.

Then, when control part 409 when S20 detects supply voltage VDD more than or equal to assigned voltage, by drive signal of drive signal generation circuit 402 output, to the time minute hand motor 26 carry out the driving in a step, minute hand moves the amount (S22) in a step when making.

The time after minute hand 2B, 2C move, the minute hand position probing was handled (S18) when control part 409 was carried out once more, carried out S18～S22 repeatedly, when detecting till the minute hand.

When control part 409 behind the minute hand, finishes the pin position probing and handles, return common taking the needle (S23) when S19 detects.

In addition, at S12, when pointer position detecting unit 405 has been exported the second hand position detection signal, second hand 2A stops on 0 second the position.Therefore, the pointer position counting unit 406 that receives the second hand position detection signal will be set at its inner second hand location counter and reset, and return to 0, make the count value of second hand location counter and the position synchronous of second hand 2A.

Similarly, when S18 has exported under the situation of minute hand position detection signal, since the time minute hand 2B, 2C stop on 0: 0 the position, so pointer position counting unit 406 will be set at its when inner the minute hand location counter reset, when making the count value of minute hand location counter and the time minute hand 2B, 2C position synchronous.

In addition, at S23, turning back under the situation about taking the needle usually, control part 409 by pointer position inner comparing unit 407 constantly be judged as the count value of inner counting unit 404 constantly and the count value of pointer position counting unit 406 be consistent before, to moment display driver circuit 403 and pointer position counting unit 406 output drive signals, make pointer 2 move quickly into the current moment from drive signal generation circuit 402.Then, carry out common taking the needle according to the drive signal of coming self frequency-dividing circuit 401 of input.

[0 or 12 s' pointer position detects and handles]

Below, in conjunction with Figure 10 or pointer position is detected treatment S 30 at 0 at 12 and describe.

When carrying out pointer position detection treatment S 30, whether more than or equal to assigned voltage (being 1.25V in the present embodiment) (S31) control part 409 at first detects supply voltage VDD.

In S31, if supply voltage VDD more than or equal to assigned voltage, then control part 409 confirms to handle in second hand position probing just now the whether success (S32) of detection of position among (whenever the pointer position of whole branch detects and handles) S60.Then under the situation of control part 409 position probing failure in second hand position probing is just now handled, or in S31 under the situation of supply voltage VDD less than assigned voltage, forbid that this pin position probing handles (S33), finishes or pointer position detection treatment S 30 at 0 at 12.

On the other hand, the position is detected as under the situation of merit in second hand position probing treatment S 60 just now, and whether more than or equal to the 2nd assigned voltage (being 1.30V in the present embodiment) (S34) control part 409 confirms supply voltage VDD.

Whether be judged as in S34 under the situation of "Yes", the minute hand position probing was handled (S35) when control part 409 was carried out, minute hand 2B, 2C (S36) when confirming to detect.

This time minute hand position probing treatment S 35 owing to be to be that 0: 0 or 12: 0 timesharing are carried out, so minute hand 2B, 2C can detect usually the time are judged as "Yes" at S36 at internal clocking (inner counting unit 404 constantly).At this moment, control part 409 since when detecting minute hand 2B, 2C be positioned at correct position, handle so finish the pin position probing, turn back to the current moment to show, turn back to common taking the needle (S51), finishes or pointer position detection treatment S 30 at 0 at 12.

On the other hand, when in S36, failing to detect under the situation of minute hand 2B, 2C since the time minute hand 2B, 2C have deviation with respect to internal clocking, institute according to circumstances carries out position probing so that time-division pin 2B, 2C move step by step.

Specifically be, when at first judging the detection of minute hand 2B, 2C by the time whether fail in minute hand 2B, 2C in indicated moment 12 hours (S37).Here, in 12 hours, detect under the situation of failure, that is, even the amount that minute hand moved 12 hours when making can not detected situation under, finish the pin position probing and handle (S51).In addition, if minute hand 2B, 2C move 12 hours amount when normally making, minute hand 2B, 2C in the time of then can detecting certainly, but for example under the situation of clock and watch 1 in the low-down environment of temperature, when supply voltage is very low, the light quantity of LED 451 descends, and flase drop survey etc. takes place sometimes, minute hand 2B, 2C during feasible can not detecting.In this case, even owing to proceed the pin position probing and handle, detect less than possibility also very high, handle (S51) so finish the pin position probing.

Be judged as "No" and move under 12 hours the situation of amount in S37, whether more than or equal to assigned voltage (1.10V) (S38) control part 409 confirms supply voltage VDD.Here, control part 409 finishes the pin position probing at supply voltage VDD under less than the situation of assigned voltage and handles (S51).

On the other hand, control part 409 is exported the drive signal of a motor of minute hand when driving 26 under the situation of supply voltage more than or equal to assigned voltage, and minute hand motor 26 moves move a step (S39) when making.In addition, in the present embodiment, minute hand 2B is set at mobile one minute down 12 steps.That is, minute hand 2B is set under 720 steps rotate a circle (moving 360 degree), a step is carried out the rotation of 0.5 degree down.In addition, hour hands 2C rotates linkedly by time-division gear set and minute hand 2B.

In S39, at that time minute hand 2B, when 2C is driven, minute hand position probing treatment S 35 when control part 409 is carried out once more.Below, control part 409 carries out the processing of S35～S38 repeatedly, when under the situation of the detection in 12 hours under the situation of minute hand 2B, 2C when S36 detects, at S37 failure and under the S38 supply voltage becomes situation less than assigned voltage, finishing the pin position probing handles, pointer is returned to the current moment, carry out common taking the needle (S51).

In addition, be judged as at S34 under the situation of "No", promptly, supply voltage VDD is more than or equal under 1.25V (being "Yes" among the S31) and the situation less than 1.30V (being "No" in S34), whether the minute hand position probing was handled (S40) when control part 409 was similarly implemented with S35,36, minute hand 2B, 2C (S41) when confirming to detect.

Be judged as under the nd situation at S41, whether more than or equal to assigned voltage (1.10V) (S42) control part 409 confirms supply voltage VDD, if supply voltage VDD is more than or equal to assigned voltage, the drive signal of minute hand motor 26 when then exporting a driving, minute hand motor 26 moves move a step (S43) when making.

Then, whether the number of times of the detection failure (not detecting) when control part 409 is judged in the minute hand position probing treatment S 40 reaches (S44) 60 times, under less than 60 times situation, and minute hand position probing treatment S 40～S44 when carrying out repeatedly.Here, when to the time minute hand motor 26 when having imported 60 drive signals, minute hand 2B moves the angles (if calculate by the time, then being 5 minutes) of 30 degree.Therefore, being judged as at S44 has nd situation 60 times, even be the angles that minute hand 2B has moved 30 degree, the situation of minute hand 2B, 2C when also failing to detect.

In the processing of this S40～S44, when detecting ("Yes" among the S41) under the situation of minute hand 2B, 2C, become under the situation less than assigned voltage ("No" among the S42) at supply voltage VDD, control part 409 finishes the pin position probing to be handled, pointer is returned to the current moment, carry out common taking the needle (S51).

In addition, undetected number of times reaches under 60 times the situation in S44, the drive signal that minute hand motor 26 carried out reverse rotation when 120 of control part 409 outputs drove, and minute hand 2B, 2C move-10 minute tracks (angles of 60 degree) (S45) when making.

Then, control part 409 and S40～S44 similarly, minute hand position probing treatment S 46 during enforcement, the time minute hand detection determination processing S47, supply voltage determination processing S48, the time minute hand motor 26 driving treatment S 49 and 60 nd determination processing S50.

Supply voltage VDD becomes under the situation less than assigned voltage (1.10V) when control part 409 detects at S41,47 under the situation of minute hand 2B, 2C, in S42,48, nd number of times reaches under 60 times the situation in S50, finishing the pin position probing handles, pointer is returned to the current moment, carry out common taking the needle (S51).

At S51, after common taking the needle handled and turned back to the pin position probing that is through with, finishes or pointer position detection treatment S 30 at 0 at 12.

[pointer position of each whole branch detects and handles]

Below, in conjunction with Figure 11, the pointer position of each whole branch is detected treatment S 60 describe.

When carrying out pointer position detection treatment S 60, whether more than or equal to assigned voltage (being 1.25V in the present embodiment) (S61) control part 409 at first detects supply voltage VDD.

Here, under the situation of supply voltage VDD less than assigned voltage, control part 409 forbids implementing this pin position probing processing, proceeds common taking the needle (S62).

On the other hand, if supply voltage VDD is more than or equal to assigned voltage in S61, then control part 409 is carried out the second hand position probing and is handled (S63).Second hand position probing treatment S 63 is owing to be the processing identical with the second hand position probing treatment S 12 of Fig. 9, so in this description will be omitted.

Control part 409 judges whether detect second hand 2A (S64) at S63, under the situation that does not detect second hand 2A, carry out repeatedly based on driving (S66) and second hand position probing treatment S 63, till detecting failure to reach 60 times (S65) the second hand 2A of the driving of second hand motor 21.

On the other hand, control part 409 detects under the situation of second hand 2A in S64 and the number of times that detects failure in S65 reaches under 60 the situation, finishes the second hand position probing and handles, and begins common taking the needle (S67) once more.Usually beginning once more of taking the needle is that at first basis returns to current time by the pointer position information of pointer position counting unit 406 countings and the current time information of being counted by inside moment counting unit 404 with pointer, carries out the common processing that takes the needle then.

In addition, in the present embodiment, from moment display driver circuit 403 during to drive signal of second hand motor 21 output, second hand 2A carries out 1 second taking the needle, and carries out second hand position probing treatment S 23 this moment at every turn.Therefore, in S25, when detecting under the situation that failure reaches 60 times, though mean make second hand 2A rotate a circle (60 seconds scales) can not detect second hand 2A.Even being rotated a circle, second hand 2A also detects less than its position, be because for example exist owing to carry out second hand position probing treatment S 23 or second hand driving treatment S 26, make supply voltage VDD descend, caused the flase drop survey, or LED 451 or phototransistor 452 situation about breaking down.Therefore, in the present embodiment, in S65,, finish the second hand position probing and handle, handle so that do not proceed too much invalid second hand position probing detecting under the situation that the frequency of failure reaches 60 times.

In addition, detect in the treatment S 60, can only carry out the position probing of second hand 2A and handle at the pointer position of each whole branch, with the time minute hand 2B, 2C position probing handle and compare, consumed energy is few, voltage descends also little.Therefore, in S61 with supply voltage VDD assigned voltage relatively than the time minute hand 2B, 2C position probing treatment S 11 in the assigned voltage value low.In addition because that the position probing of the second hand 2A voltage when handling descends is little, so carry out the detection of primary power source voltage during in each whole timesharing (0 second time) as long as in beginning, carry out repeatedly S63～S66 during do not carry out the detection of supply voltage.

According to above-mentioned embodiment, can reach following effect.

(1) detects processing even under the low state of supply voltage VDD, carry out pointer position, though because the light quantity of LED 451 is low flase drop may take place surveys, and the waste that causes energy, but present embodiment is owing to only carry out pointer position under more than or equal to the situation of the high-voltage state of assigned voltage at supply voltage VDD and detect and handle, so can prevent the flase drop of pointer position surveys, the energy of avoiding waste can be realized the saving of energy.

Particularly pointer position detects treatment S 10, S30 and compares carrying out handling with the position probing of the driving of pointer 2 and the second hand 2A that utilizes optical sensor, the possibility that voltage descend to increase big the time minute hand 2B, 2C position probing when handling, when handling, the mobile and position probing of at every turn carrying out pointer all detects supply voltage VDD, detect processing so can under the high state of supply voltage, implement pointer position, the flase drop that therefore can positively prevent pointer position is surveyed, and can positively prevent the waste of energy.

(2) in addition, because implementing pointer position under more than or equal to the situation of assigned voltage at supply voltage VDD detects and handles and pointer position detects the motor driven processing of usefulness, these processing can not make supply voltage VDD significantly reduce, so can prevent the generation of the misoperation of the systemic breakdown of clock and watch 1 and IC, CPU.

(3) owing to only carry out pointer position under more than or equal to the situation of assigned voltage and detect and handle and pointer position detects the motor driven processing of usefulness at supply voltage VDD, so, can reduce to keep the capacity of electric capacity, correspondingly can realize the miniaturization and the slimming of clock and watch 1.

(4) detect treatment S 30, S60 by each pointer position, second hand 2A is at each whole branch, promptly, be identified at interval its position in each minute, the time minute hand 2B, 2C be identified its position at interval at per 12 hours, under situation that deviation can not detect takes place in this position, detect the position of each pointer 2, so,, also can detect this deviation at once and revise even deviation takes place in the position of pointer 2.Therefore, in the original constantly electric wave correction clock and watch 1 that pointing accuracy is very high, can further improve the pointing accuracy of pointer 2.

(5) pointer position 0 or 12 detects in the treatment S 30, is 0: 0 or 12: 0 timesharing at supply voltage VDD more than or equal to 1.3V and internal clocking, when failing to detect under the situation of minute hand 2B, 2C, by S35～S39, minute hand 2B, 2C when minute hand 2B, 2C rotate 12 small time takings and detect when making.Therefore, except breaking down because of optical sensor or making the luminous quantity of LED 451 reduce the situation that the flase drop survey takes place minute hand 2B, 2C in the time of positively to detect under the low-down temperature.In addition, because minute hand 2B, 2C move 12 small time takings when only making under the situation of the high state of supply voltage VDD, even move 12 small time takings and carry out pointer position and detect the so big processing of energy consumption of processing, also can prevent because of the decline to a great extent paralysis of the system that causes of supply voltage so carry out when making on one side minute hand 2B, 2C.

(6) in addition, pointer position 0 or 12 detects in the treatment S 30, supply voltage VDD more than or equal to 1.25V, situation less than 1.30V under, and when failing to detect under the situation of minute hand 2B, 2C, by S40～S50, minute hand 2B, 2C rotate forwards, backwards in the mode of one time 5 minute track respectively when making, minute hand 2B, 2C when detecting with this.Therefore, can dwindle the pointer position sensing range, suppress pointer position and detect the energy consumption of handling, can prevent because of the decline to a great extent paralysis of the system that causes of supply voltage.

(7) in addition, in S40～S44, even make minute hand 2B 5 minute tracks that advanced, when still failing to detect under the situation of minute hand 2B, 2C, in S45, make its reverse rotation 10 minute tracks, then, at S46～S50, make minute hand 2B advance in 5 minute tracks detection of minute hand 2B, 2C when carrying out.Therefore, the detection of minute hand 2B, 2C can be carried out stable detection when carrying out in can always minute hand 2B, 2C are rotated in the forward when making.

Promptly, during owing to minute hand 2B, 2C reverse rotation when making, compare with the situation of forward, the influence that is recoiled, some variations take place in the steady stability position of gear set, also change so detect the lap position in hole, can not carry out the possibility height of stable detection, but present embodiment is owing to being to carry out pointer position to detect processing when being rotated in the forward, so can carry out stable detection.

(8) in clock and watch 1 with pointer position measuring ability, particularly the time minute hand with train of reduction gears 27 sides, use be arranged on 5 kinds of cars 271 of rotor pinion 261A engagement and 3 kinds of cars 272 on detection hole 271A, the pointer position of minute hand 2B, 2C detected when 272A carried out, so, even the time minute hand motor 26 rotate by the step continuously, do not worry appearing in 5 kinds of big cars 271 of the anglec of rotation and the 3 kinds of cars 272 yet, particularly detect the situation that continues to overlap between hole 271A, the 272A, can improve accuracy of detection, pointer is proofreaied and correct on the reference position exactly.

(9) and, because 5 kinds of cars 271 and 3 kinds of cars 272 are with respect to being configured in 2 kinds of central cars 273 also by on the equitant in the plane position of centralized configuration, so, has good space service efficiency, minute hand to diametric expansion, can promote the miniaturization of clock and watch 1 with the structure of train of reduction gears 27 in the time of can suppressing.

(10) in addition, be installed in the second hand 2A on second gear 222 and be installed in hour wheel 275 and 2 kinds of cars 273 on time minute hand 2B, 2C driven by separate gear set 22,27 respectively, so minute hand 2B, 2C and second hand 2A in the time of can driving respectively, carry out the calibration of reference position etc. respectively, can realize the calibration of position at short notice.In addition, the time light-emitting component 6 that uses in detecting of pointer position of minute hand 2C, 2B and second hand 2A and photo detector 7 also by independent setting the respectively, so can realize the simplification of testing circuit, thereby improve reliability.

(11) and, in carrying out the clock and watch 1 that showed in 12 hours, hour wheel 275 was to be rotated one-period with 12 hours, in the present embodiment of having assembled hour wheel 275 in order to detect pointer position, also can make each timing that detects hole 271A, 272A, 273A, 222A, 275A of 5 gears of light transmission 271,272,273,222,275 was the cycle with 12 hours, can can easily carry out various controls with a reference position that set positions is a pointer 2 of viewing area as positive position etc. at 12 based on the reference position.

(12) and, because the situation of the quartz clock that the gear ratio of rotor pinion 211A, 261A is common is many, it is 10, so even maximum deviation takes place in the phase place between rotor magnet 211B, 261B and rotor pinion 211A, the 216A, actually can be to not exerting an influence with second neutral gear 221 of rotor pinion 211A, 261A engagement and detection hole 221A, the 271A of 5 kinds of cars 271 yet, phase place each other needn't be taken into account, the assembling of rotor 211,261 can be easily carried out.

(13) and, in the present embodiment, took the needle in 5 seconds by establishing minute hand 2B, correspondingly use 5 kinds of cars 271 and 3 kinds of cars 272, minute hand has increased reduction gear ratio with the number of teeth of train of reduction gears 27 when having increased.Therefore, compare with using the gear set that took the needle in 10 seconds, the torque that can make 2 kinds of cars have 2 times even bigger minute hand 2B is installed, also can be guaranteed to take the needle with few energy consumption, can realize having the clock and watch of good surface appearance.Be charged in the present embodiment of using in the secondary cell at the electric energy that will obtain by solar electrical energy generation, it is useful using the few more good more structure of consumed power.

In addition,, used 5 kinds of cars 271 and 3 kinds of cars 272, compare with the situation that the gear that strengthens any one party uses, but the size on the reduced plan direction can make clock and watch compacter in order to increase reduction gear ratio.

(14) clock and watch 1 are owing to use the electric power of solar electrical energy generation to drive, thus do not need to carry out the replacing of battery, and do not need to carry out the calibration of necessary reference position when changing battery yet, can realize maintenance-free.

(15) in addition, since date wheel by be different from second hand motor 21 and the time minute hand motor 26 other calendar drive independently with gear set 33 by calendar with driver element 31, so can shorten pointer position detection time, realize the miniaturization of clock and watch, the simplification of gear set 22,27.

In addition, the invention is not restricted to above-mentioned embodiment, the various distortion of being carried out in the scope that can reach purpose of the present invention, improvement etc. all belong to the present invention.

For example, in the above-described embodiment, detect among the S34 of treatment S 30, under the situation of supply voltage, limited the pointer position sensing range, but also can for example prolong the cycle that positions of members detects action less than the 2nd assigned voltage at pointer position.If prolong the cycle that positions of members detects action, then after voltage decline had taken place the driving because of motor driven or optical sensor, supply voltage returned to original voltage easily, correspondingly can suppress the decline of voltage.

In addition,, be not limited to second hand 2A, minute hand 2B and hour hands 2C, also can comprise the indicating device that date wheel 30 calendars such as grade are used as the position probing object of indicating device.And, be provided with the timing pin, setting in the clock and watch of the give the correct time pin that gives the correct time constantly, 24 hours pins etc., also can be these pointers as the position probing object.

In addition, like this, except the pointer 2 of instruction time, also be provided with under the situation of indicating device, under the situation of described supply voltage, also can compare more than or equal to the situation of the 2nd assigned voltage and reduce the detected object that positions of members detects with supply voltage less than the 2nd assigned voltage.For example, also can set for, under the situation of supply voltage, except pointer 2, also carry out the position probing of date wheel 30 and various pointers, under situation, only carry out the position probing of pointer 2 less than the 2nd assigned voltage more than or equal to the 2nd assigned voltage.According to such formation, under the lower situation of supply voltage,,, suppress the decline of voltage so can reduce the consumption of energy owing to reduced the pointer position object less than the 2nd assigned voltage.

And, in the above-described embodiment, though utilize second hand to drive second hand 2A with train of reduction gears 22, minute hand 2B, 2C when the time spent minute hand drives with train of reduction gears 27, but also can drive second hand 2A and minute hand 2B by dividing second with gear set, drive calendar display units such as hour hands 2C and date wheel 30 by a hour calendar gear set with a motor with a motor.

And, also boosting unit can be set, under the low situation of supply voltage, this voltage is boosted, and CD-ROM drive motor and position detecting device.According to such formation, even under the low situation of supply voltage, also positively CD-ROM drive motor and position detecting device.

Detect in the treatment S 30 at above-mentioned pointer position, detecting supply voltage in the course of action at pointer position drops under the situation less than assigned voltage, end pointer position probing treatment S 30, make pointer 2 move to current time (constantly inner), then carry out common taking the needle, but also can take the needle and make pointer 2 move to the position of regulation,, impel and generate electricity to the situation that the user notifies voltage to descend by speed change.In this case, also can be after supply voltage be risen, make pen travel to constantly inner then carry out common taking the needle.

In addition, detect in the action at pointer position, supply voltage drops under the situation that is lower than assigned voltage, also can be in order to prevent system's confusion of IC or CPU etc., and the output reset signal is carried out initialization to IC or CPU etc.

In addition, in pointer position detects treatment S 30, in S45 when mobile minute hand 2B, 2C, the time minute hand position probing when handling (S46) pointer is rotated in the forward, while but also can make its reverse rotation carry out pointer position to detect and handle.But, under the situation of reverse rotation,, may not carry out stable detection because the recoil deviation takes place, so, preferably as above-mentioned embodiment,, pointer detects while being rotated in the forward.

After pointer position detects successfully, transfer to current time and also carry out voltage detecting before showing by the motor driven pulse, under situation more than or equal to assigned voltage, transfer to current time and show, also can carry out the demonstration of situation about descending under less than the situation of assigned voltage to user notification voltage.Like this, can make the user grasp supply voltage to drop to situation below the assigned voltage owing to detect to handle, so the user can promptly take to change measures necessary such as battery, charging, generating by pointer position.

In the above-described embodiment, constantly reaching whenever whole branch, 0 point, carrying out pointer position 12 the time and detect and handle in the counting unit 404 in inside, making pointer position counting unit 406 reach whenever whole branch, 0 point, carry out pointer position 12 the time and detect and handle but also can be set at.

In addition, in the above-described embodiment, be to reach whenever whole branch, 0 point, 12 the time, detecting and handle if supply voltage, then carries out pointer position more than or equal to assigned voltage.To this, also can be set at: even supply voltage is more than or equal to assigned voltage, in energy-saving mode, in the receiving mode, the user makes in the pattern beyond the medium pattern that takes the needle usually of process of pen travel, makes pointer position counting unit 406 or inner counting unit 404 constantly reach whenever whole branch, 0 point, not carry out pointer position 12 the time and detect and handle.

Pattern beyond the pattern that takes the needle usually, for example in energy-saving mode, electric wave receiving mode, the manual correction pattern isotype, detect processing if carry out pointer position, then might hinder these special actions, if but when these special patterns, do not carry out pointer position and detect processing, then have the advantage that positively to carry out special action.

And, under the situation of supply voltage less than assigned voltage, the detection resistance 455 that also pointer position can be detected the phototransistor 452 of usefulness switches to the high resistance of detection resistance value, to improve the sensitivity of phototransistor 452, makes it can detect faint light.Such formation can reduce the misoperation that pointer position detects.

The time minute hand position probing be not limited to just by inside constantly counting unit 404 or pointer position counting unit 406 carry out when 0 or 12, also can be in taking the needle usually each mobile the time carry out pointer position during minute hand and detect.In addition, under the situation that as above-mentioned embodiment, is set at the position probing of minute hand when only when second hand is 0 second, carrying out, as long as be moment of 0 second to carry out pointer position to detect at second hand.For example, under the situation that minute hand moves when the drive signal of using 1 pulse signal of output in per 1 minute drives, as long as carrying out position probing at this pulse output time handles, minute hand is moved under 1 minute the situation, as long as be that the position probing of minute hand is handled when carrying out in recurrent interval of 0 second at second hand.In addition, textural at gear set, with the time minute hand position probing be independent of second hand and under the situation of carrying out respectively, as long as carry out pointer position during minute hand when mobile and detect each.

Like this,, then do not need, therefore, can prevent the decline of the supply voltage that causes because of quick needle insertion by making pointer come in to carry out the position probing processing soon if carry out pointer position detection owing to carry out common taking the needle on one side.

In addition, in the above-described embodiment, reaching whenever whole branch, 0 point, carrying out pointer position 12 the time and detect, but fail under the detected situation, the data of promptly inner counting unit 404 constantly or pointer position counting unit 406 produce under the situation of deviation with the position of actual pointer 2, make each pointer 2 come in to carry out pointer position soon and detect, but also can not carry out F.F., and proceed common taking the needle, and when moving each pointer 2, carry out pointer position to detect at every turn, seek pointer position.In addition, the position of second hand 2A can detect in maximum 1 minute, the time minute hand 2B, 2C the position detect in can be in maximum 12 hours.But under the situation of majority, because the position deviation of pointer 2 is little, so generally can in the shorter time, detect.

Owing to detect, just can not need by making pointer 2 come in to carry out the position probing processing soon, so can prevent because of soon and then the decline of the supply voltage that causes as long as carry out pointer position in this wise while take the needle usually.

And, also can make inner counting unit 404 constantly or pointer position counting unit 406 reaching at 0 o'clock at every turn ± detect under the situation that 5 minutes, 12 point ± 5 grade, promptly in the high scope of the possibility that detects pointer position, carry out each position probing.Usually, because the position deviation of pointer 2 is so not big, so as long as carry out each position probing within the limits prescribed, the possibility of position that then can both detect pointer 2 is very high at every turn, need hardly by making the pointer detection position of coming in soon, thereby can suppress the decline of supply voltage.And, when for example pointer position counting unit 406 grades are at 12, and the time minute hand 2B, 2C is designated as 11: 57 timesharing, in the above-described embodiment, must with the time minute hand F.F. 12 hours scale nearly, or after moving to 12: 5, make its reverse rotation, move to 11: 55, it is rotated in the forward, otherwise the position of minute hand in the time of just can not detecting, if but each position probing of carrying out pointer in predetermined scope then can reduce the amount of movement for the pointer that carries out position probing, can suppress the decline that pointer position detects the supply voltage when handling.

In addition, under the situation that the second hand position probing of stipulated number is all failed continuously, because being likely clock and watch 1 is under the action assurance temperature temperature in addition of pointer position detection, so also can stop position probing second of whole branch whenever, forbid that before arriving the predetermined period of next time every timing etc. the position probing of second hand 2A handles.Like this, till the success of the position probing of second hand 2A,, can save the consumption of energy as long as only carry out the second hand position probing in the moment that sets of every timing etc.

In the above-described embodiment, as electronic equipment, clock and watch 1 with electric wave debugging functions are illustrated, but be not limited thereto as electronic equipment of the present invention, for example also can be stopwatch, timer, also can be the surveying instrument of band pointers such as the pointer-type survey table of measuring electrical characteristics, pointer gauging table in addition, briefly say the various electronic equipments that comprise indicating device and have the position detecting function of this indicating device.

In addition, power supply as electronic equipment, except utilizing solar electrical energy generation to obtain the electric energy, under situation with the generator that comprises automatic remontoir and the generator that drives by this mechanism that utilizes rotary hammer or utilize the mechanical energy driving of savings in wind spring, also the electric energy that sends by these generators can be used, one-shot battery can certainly be used.

In the above-described embodiment, because photo detector 7 is configured in the bonnet side, so at bonnet is under the situation of the material that sees through outer light as glass etc., outer light enters from the bore portion of circuit module 7A and circuit pressing plate etc., can make photo detector 7 produce reaction.In this case, owing to can cause the flase drop of pin position probing to be surveyed,, preferably use the ultrared light-blocking member that blocks that is most frequently used among the LED as light-blocking member so, wish on the bonnet of glass, light-blocking member to be set in order to prevent this flase drop survey.

In the above-described embodiment, be to carry out taking the needle of minute hand 2B, but in order further to strengthen holding torque with 5 second cycle, also can take the needle with the cycle less than 5 seconds such as cycle of 2 seconds.

In addition, do not needing to strengthen under the situation of holding torque, also can adopt the cycle of such in the past 10 seconds, 20 seconds or 30 seconds.And, in this case, though be not included in the present invention 15 in, be included in other invention of 15 of not quoting the present invention.

More than, be illustrated being used to implement optimum structure of the present invention and method etc., but the invention is not restricted to this.Mainly specific embodiment of the present invention is illustrated by accompanying drawing promptly, and be illustrated, but in the scope that does not exceed technical conceive of the present invention and purpose, those skilled in the art can carry out various changes at above-mentioned embodiment on shape, material, quantity and other concrete structure.

Therefore, the description that defines above-mentioned shape, material etc. is just described in order to understand example of the present invention easily, be not to be used for limiting the present invention, therefore, the present invention also comprises the description of the component names of part or all qualification of adopting the qualification that exceeds these shapes, material etc.

Claims (16)

1. electronic equipment is characterized in that having:

Indicating device;

Drive the indicating device driver element of this indicating device;

Detect the positions of members pick-up unit of the position of described indicating device;

Control module, it controls the driving of described indicating device driver element and described positions of members pick-up unit;

Power supply, it drives described indicating device driver element and described control module; With

Detect the voltage detection unit of this power source voltage,

Described control module detects action according to the positions of members of being controlled described positions of members pick-up unit by the detected supply voltage of described voltage detection unit,

Described control module detected supply voltage by described voltage detection unit before positions of members detects action, under the situation of this supply voltage more than or equal to assigned voltage, the beginning positions of members detects action, under the situation of supply voltage, do not carry out positions of members and detect action less than assigned voltage.

2. electronic equipment according to claim 1 is characterized in that,

Described control module detects in the course of action at positions of members and detects supply voltage by described voltage detection unit, under the situation of this supply voltage, proceed positions of members and detect action, end positions of members at supply voltage under less than the situation of assigned voltage and detect action more than or equal to assigned voltage.

3. electronic equipment according to claim 1 is characterized in that,

Described control module detects in the course of action at positions of members and detects supply voltage by described voltage detection unit, under the situation of this supply voltage more than or equal to assigned voltage, proceed positions of members and detect action, under the situation of supply voltage less than assigned voltage, stop positions of members and detect action, then, under supply voltage has reached situation more than or equal to assigned voltage, begin positions of members once more and detect action.

4. electronic equipment according to claim 1 is characterized in that,

Described control module at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, dwindle the positions of members sensing range.

5. electronic equipment according to claim 1 is characterized in that,

Described control module at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, prolong the cycle that positions of members detects action.

6. electronic equipment according to claim 1 is characterized in that,

Described control module at described supply voltage more than or equal to assigned voltage and carry out positions of members when detecting action, under the situation of this supply voltage less than the 2nd assigned voltage, compare more than or equal to the situation of the 2nd assigned voltage with supply voltage, reduce the detected object that positions of members detects.

7. electronic equipment according to claim 1 is characterized in that,

Have the boosting unit that the voltage of supplying with from power supply is boosted, described control module is according to the magnitude of voltage control boosting unit of described supply voltage, change supply voltage.

8. electronic equipment according to claim 1 is characterized in that,

Positions of members counter with position of expression indicating device, when described control module detects indicating device in positions of members detection action, by described positions of members counter being modified to the value of regulation, make indicating device and positions of members counter synchronisation.

9. electronic equipment according to claim 1 is characterized in that,

Described positions of members pick-up unit has the light-emitting component of illuminating and the photo detector that used by light, described indicating device driver element has motor and by the gear set of motor driven, described gear set comprises and the 1st gear of the rotor pinion of described motor engagement, the 2nd gear of described indicating device is installed and is configured in the 3rd gear between these the 1st gears and the 2nd gear, on described the 1st gear to the 3 gears, be provided with the detection hole that the light between described light-emitting component and the described photo detector is passed through on the position overlapped of plane each other mutually.

10. electronic equipment according to claim 9 is characterized in that,

Described indicating device driver element has: other gear set, and it comprises and is configured in the 4th gear of going up and be equipped with the indicating device different with described indicating device with the coaxial axle of described the 2nd gear; With other motor that drives this gear set, described positions of members detecting unit has other light-emitting component and the photo detector different with photo detector with described light-emitting component, the positions of members that is installed in the indicating device on described the 4th gear detect to be with nonoverlapping position, described the 2nd gear plane on and use described other light-emitting component and photo detector to carry out.

11. electronic equipment according to claim 9 is characterized in that,

With the number of teeth of the rotor pinion of described the 1st gearing mesh more than or equal to 8.

12. electronic equipment according to claim 1 is characterized in that,

This electronic equipment is a kind of electronic watch, and it has the inside timing unit and use described indicating device to show moment display unit by the moment of described inner timing unit institute constantly timing constantly that carries out timing constantly.

13. electronic equipment according to claim 9 is characterized in that,

This electronic equipment is a kind of electronic watch, it has the inside timing unit and use described indicating device to show moment display unit by the moment of described inner timing unit institute constantly timing constantly that carries out timing constantly, the indicating device that is installed on described the 2nd gear is a minute hand, and described indicating device driver element has hour wheel, this hour wheel with the 2nd gear coaxial the axle on, be driven and be equipped with hour hands by back gear with the 2nd gearing mesh, on this hour wheel, also be provided with equitant detection hole, detection hole with described the 1st to the 3rd gear.

14. electronic equipment according to claim 13 is characterized in that,

Described minute hand took the needle with the cycle smaller or equal to 5 seconds.

15. electronic equipment according to claim 13 is characterized in that,

Other motor by the other gear set different with the described gear set that comprises described the 2nd gear and/or described hour wheel and this other gear set of driving constitutes the calendar display unit.

16. the positions of members detection method of an electronic equipment, this electronic equipment comprises indicating device, drive the indicating device driver element of this indicating device, detect the positions of members pick-up unit and the power supply of the position of described indicating device, it is characterized in that

Comprise: the voltage detecting step detects described power source voltage; Detect controlled step with positions of members,, control the positions of members detection action of described positions of members pick-up unit according at the detected supply voltage of voltage detecting step,

Before detecting action, positions of members detects supply voltage by described voltage detecting step, under the situation of this supply voltage more than or equal to assigned voltage, the beginning positions of members detects action, under the situation of supply voltage, do not carry out positions of members and detect action less than assigned voltage.

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