CN100471001C - Portable electronic equipment and battery - Google Patents

Portable electronic equipment and battery Download PDF

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Publication number
CN100471001C
CN100471001C CNB200610078009XA CN200610078009A CN100471001C CN 100471001 C CN100471001 C CN 100471001C CN B200610078009X A CNB200610078009X A CN B200610078009XA CN 200610078009 A CN200610078009 A CN 200610078009A CN 100471001 C CN100471001 C CN 100471001C
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China
Prior art keywords
battery
information
portable electronics
charging cycle
warning message
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CN1855664A (en
Inventor
川口龙司
久保田政胜
石原淳彦
川角政司
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Fujifilm Corp
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Fujifilm Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

An electronic appliance has a data read/write section which reads information about a battery stored in a wireless tag provided in the battery, and a CPU which recognizes the read information about the battery and generates battery remaining energy warning information to be displayed on a display section according to the battery information. The battery remaining energy warning information according to the kind of the battery, the name of the manufacturer of the battery, etc., is generated and displayed to correctly and effectively inform a user of a remaining energy warning about the battery presently used.

Description

Portable electronics and battery
Present patent application is that application number is 200410030986.3, and the applying date is on April 5th, 2004, and name is called dividing an application of " portable electronics and battery ".
Technical field
The present invention relates to a kind of portable electronics and used battery, more particularly, the present invention relates to use portable electronics and a kind of battery that can be used as power supply of battery as power supply.
Background technology
Many portable electronics for example digital camera can use light detachable battery and the AA battery that can buy immediately.The AA battery comprises many kinds, for example as manganese cell, alkaline battery and the lithium battery of primary cell, as the nickel-cadmium cell and the Ni-MH battery of secondary cell.
The shape of all these AA batteries is mutually the same.Therefore, concerning with the AA battery as the digital camera of power supply, when the battery altering used, be difficult to the kind of the other battery of device.In electric equipment products, the remaining battery voltage when the battery remaining power warning signal is shown is set to the magnitude of voltage of the product that carries battery battery when being sold.If use different types of battery, because the battery characteristics difference can not provide the dump energy warning signal.For example, to carrying the portable electronics product of alkaline battery, the dump energy warning signal that is complementary with battery characteristics is set.If use Ni-MH battery in portable electronics, because the characteristic difference between the different batteries, after the dump energy signal showed, electrical equipment might become immediately and can not photograph.
Even their kind of battery that different manufacturers produce and measure-alike, its capacity are also different.So even residual voltage is identical, the life-span of battery also has difference.
On the other hand, begun recently to set up a system, in this system, the wireless identification tag (wireless tag) comprise product information has been set in the product, the reader reads information in the wireless identification tag and employed product is managed etc.
The Japanese patent application file has proposed for JP2000-22578 number to utilize wireless identification tag to carry out the suggestion of the incoming/outgoing management and the storage management system of ID card.The Japanese patent application file discloses the device that is used to discern secondary battery JP5-135804 number.But disclosed any technology does not all solve the above problems in these patent applications.
The battery of storing in electrical equipment will be set under the situation of energy control according to the kind of battery, and it is pretty troublesome to operate, and for example the user must check the kind of battery, changes the setting that battery all will carry out energy control at every turn.
Use at portable electronics under some situation of secondary cell, electrical equipment itself has the function of secondary cell charge device.But even in this case, portable electronics can not be differentiated does not have charging battery and the inferior battery of the existing hundreds of of charging repeatedly, and this is that the user must remember the number of times of battery charge because there is not device accurately to measure the number of times of secondary cell charge.
Therefore, the secondary cell in portable electronics uses many times, approaches the limit of battery performance, for example under the situation of battery degraded, the situation of battery degraded may be takeed for the just reduction of performance, causes the damage of portable electronics.
Summary of the invention
In view of above-mentioned situation, and also provide the expection of the wireless identification tag that comprises battery information in view of following battery, the purpose of this invention is to provide a kind of portable electronics.This electrical equipment can show that by utilizing the wireless identification tag on battery the battery remaining power warning signal is complementary with the characteristic with battery.This battery is any spendable battery with same size, and just kind is different and produced by different manufacturers.
Another object of the present invention provides and be provided with wireless identification tag that comprises battery information and the battery that can effectively be detected in the electrical equipment that uses this battery.
The battery of expectation also will provide the wireless identification tag that comprises this battery information, and a further object of the present invention provides a kind of portable electronics.This electrical equipment can automatically carry out energy control to be complementary with battery behavior by utilizing the wireless identification tag on the battery.This battery is any spendable battery with same size, and just kind is different and produced by different manufacturers.
The battery of expectation also will provide the wireless identification tag that comprises this battery information, and a further object of the present invention provides a kind of portable electronics.This electrical equipment can accurately be measured the charging times of secondary cell by utilizing the wireless identification tag on the battery, makes the user can discern the degraded state of secondary cell, and prevents that secondary cell from can not use immediately owing to degraded becomes during use.
First scheme of the present invention provides a kind of portable electronics that can use battery as power supply, and above-mentioned electrical equipment has a reading device, reads the information in the wireless identification tag of being stored in that is arranged on the battery; One recognition device, the information that identification is read by above-mentioned reading device about battery; One warning message display unit shows battery remaining power warning message and warning message generation device, and the information according to above-mentioned recognition device identification produces the battery remaining power warning message, and sends the information of generation to above-mentioned warning message display unit.
According to first scheme of the present invention, reading device reads the information about battery that is stored in the wireless identification tag.Wireless identification tag is arranged on the battery, for example, embeds or sticks on the battery.The information that recognition device identification is read by reading device about battery.Comprise kind for example primary cell and secondary cell, the name of battery manufacturers and the information of battery capacity that shows battery about the information of battery.The warning message generation device according to recognition device identification information, produce the warning message of this battery remaining power, and the dump energy warning message that produces sent to the warning message display unit.Battery can change flash-over characteristic, for example according to whether being primary cell or secondary cell, changes capacity in process of production.Therefore, according to the warning message of definite battery remaining powers such as capacity of the name of the kind of battery, battery manufacturers and battery, the dump energy warning message to the battery of present use just can correctly and effectively show so.
In alternative plan of the present invention, provide and to have used the portable electronics of battery as power supply, this electrical equipment has a reading device, read the information in the wireless identification tag of being stored in that is arranged on the battery, reading device is arranged on the approximately vertically position intermediate along the longitudinal extension place of accommodating this battery.
According to alternative plan of the present invention, reading device is arranged on the approximately vertically position intermediate along the longitudinal extension place of accommodating this battery.So even many batteries are placed on the place of accommodating, they longitudinally under the situation of positioned alternate, if wireless identification tag is arranged on the middle part approximately longitudinally of each battery, do not provide a plurality of reading devices can read yet.
In third party's case of the present invention, the battery of extend longitudinally shape is provided, this battery has the wireless identification tag that is fixed to along on the battery part of the vertically about middle part of this battery.
In cubic case of the present invention, the battery of extend longitudinally shape is provided, this battery has the wireless identification tag that is fixed to along on the battery part of the vertically about middle part of this battery, so that along the circumferential direction extend.
Can use the AA battery as the battery in third and fourth scheme.
In the 5th scheme of the present invention, the battery of extend longitudinally shape is provided, this battery has the wireless identification tag that is fixed to along on the battery part of the vertically about middle part of this battery, and this battery is used for the described portable electronics of alternative plan of the present invention.
If this battery uses in the 5th scheme of the present invention, the portable electronics in alternative plan of the present invention reads wireless identification tag and available this reading device of being arranged on the battery with reading device and reads the information that is stored in the wireless identification tag so.
In the 6th scheme of the present invention, a kind of portable electronics that can use battery as power supply is provided, above-mentioned electrical equipment has reading device, read the information that is stored in the battery in the wireless identification tag on the battery that is fixed on, recognition device, the information that identification is read by above-mentioned reading device about battery; Power control, the energy that the control portable electronics consumes; Require generation device with control,, send energy control and require above-mentioned power control according to the information of above-mentioned recognition device identification.
According to the 6th scheme of the present invention, reading device reads the information about battery in the wireless identification tag of being stored in that is fixed on this battery.Wireless identification tag is fixed on the battery, for example embeds on the battery or sticks on the battery.Recognition device, the information that identification is read by above-mentioned reading device about battery.The kind that comprises battery about the information of battery is the name of primary cell and secondary cell and battery manufacturers for example.The demand for control generation device, the information according to above-mentioned recognition device identification sends to power control with the energy demand for control.This battery can change flash-over characteristic, for example according to whether being primary cell and secondary cell, can change capacity in process of production.Therefore, if the energy control command that the information such as name of the kind of battery, manufacturer produce produces and sends to power control, so by considering present employed battery behavior, with regard to the energy consumption of may command portable electronics.
In the 7th scheme of the present invention, provide a kind of and can use the portable electronics of battery as power supply, above-mentioned electrical equipment has reading device, read the information in the wireless identification tag of being stored in that is fixed on the battery about battery, above-mentioned information comprises the information of this battery of identification and this battery variety, power control, the energy consumption of control portable electronics, therefore reduced the consumption of energy, the demand for control generation device, according to the information of recognition device identification, send the demand that reduces the such control of energy values of carrying out to power control.
According to the 7th scheme of the present invention, reading device reads the information about battery in storage one wireless identification tag.Described wireless identification tag is fixed on the battery, for example embeds on the battery or sticks on the battery.Recognition device, the information that identification is read by above-mentioned reading device about battery.Described information about battery comprises the kind of this battery, for example the name of primary cell and secondary cell, battery manufacturers.The demand for control generation device sends reduction energy demand for control according to the information of recognition device identification to power control.This battery can change flash-over characteristic, for example according to whether being primary cell and secondary cell, can change capacity in process of production.Therefore, if reduce demand for control and send to power control according to the produce powers such as name of the kind of battery, manufacturer, the characteristic by considering present used battery is with regard to may command with reduce the energy values that portable electronics consumes so.
In the case of all directions of the present invention, provide a kind of and can use the portable electronics of battery as power supply, above-mentioned electrical equipment has reading device, reads the information in the wireless identification tag of being stored in that is fixed on the battery, and described canned data comprises the kind of this battery of identification and this battery; Recognition device, the information that identification is read by above-mentioned reading device, the described information that reads comprises this battery of identification and this battery variety; Charging device, the battery in above-mentioned portable electronics are under the situation of secondary cell, can charge to this battery; Charging cycle storage device, the battery in above-mentioned portable electronics are under the situation of secondary cell, according to the identifying information of this battery, are stored in the charging cycle numerical value of the battery in the above-mentioned portable electronics; The warning display unit shows about using the warning message and the warning message display unit of battery, shows the warning message about the use battery according to the charging cycle number.
According to all directions of the present invention case, reading device reads the information that is stored in the wireless identification tag, and described canned data comprises the kind of this battery of identification and this battery.Wireless identification tag is fixed on this battery, for example embeds this battery or adheres on this battery.Recognition device, the information that identification is read by above-mentioned reading device, the described information that reads comprises this battery of identification and this battery variety.The information of identification battery comprises by the information Recognition battery, for example this battery information of whether having been charged by portable electronics.The information that comprises this battery variety is that the kind that comprises this battery for example is primary cell or the information of secondary cell and in some cases, and some other kinds of information is the name of battery manufacturers for example.If the battery in portable electronics is under the situation of secondary cell, charging device can charge to this battery; Reading device and recognition device can determine whether the battery in the portable electronics is secondary cell.Charging cycle storage device, the battery in portable electronics are under the situation of secondary cell, according to the identifying information of this battery, are stored in the charging cycle numerical value of the battery in the above-mentioned portable electronics; The warning generation device shows about using the warning message of battery the warning display unit.Under the situation of using secondary cell, the increase with the charging cycle number of the minimizing of battery capacity and available time shortens.In this case, must put used battery of generation with a new battery.Therefore, show the information of urging the user to remove to buy new battery.
In the 9th scheme of the present invention, provide a kind of and can use the portable electronics of battery as power supply, above-mentioned electrical equipment has reading device, reads the information in the wireless identification tag of being stored in that is fixed on the battery, and described canned data comprises the kind of this battery of identification and this battery; Recognition device, the information that identification is read by above-mentioned reading device, the described information that reads comprises this battery of identification and this battery variety; Charging device, the battery in above-mentioned portable electronics are under the situation of secondary cell, can charge to this battery; Charging cycle storage device, the battery in above-mentioned portable electronics are under the situation of secondary cell, according to the identifying information of this battery, are stored in the charging cycle numerical value of the battery in the above-mentioned portable electronics; Power control, the energy values that the control portable electronics consumes, the numerical value and the energy that therefore can reduce energy reduce indicating device, and according to charging cycle numerical value, the indication power control reduces energy consumption numerical value.
According to the 9th scheme of the present invention, reading device reads the information that is stored in the wireless identification tag, and described canned data comprises the kind of this battery of identification and this battery.Wireless identification tag is fixed on this battery, for example embeds this battery or adheres on this battery.Recognition device, the information that identification is read by above-mentioned reading device, the described information that reads comprises this battery of identification and this battery variety.The information of identification battery comprises by the information Recognition battery, for example this battery information of whether having been charged by portable electronics.The information that comprises this battery variety is that the kind that comprises this battery for example is primary cell or the information of secondary cell and in some cases, and some other kinds of information is the name of battery manufacturers for example.If the battery in portable electronics is under the situation of secondary cell, charging device can charge to this battery; Reading device and recognition device can determine whether the battery in the portable electronics is secondary cell.Charging cycle storage device, the battery in portable electronics are under the situation of secondary cell, according to the identifying information of this battery, are stored in the charging cycle numerical value of the battery in the above-mentioned portable electronics; Energy reduces the fat showing device, and the indication power control reduces energy consumption numerical value according to cycling numerical value.Power control receives the instruction that reduces the reduction energy consumption of indicating device from energy, and reduces the energy consumption numerical value of portable electronics.Under the situation of secondary cell, the increase with the charging cycle number of the minimizing of battery capacity and available time shortens.So in the process that battery uses, reduce energy consumption to increase the time interval.
In the tenth scheme of the present invention, provide a kind of and can use the portable electronics of battery as power supply, above-mentioned electrical equipment has reading device, read the information in the wireless identification tag of being stored in that is fixed on the battery, described canned data comprises the kind of discerning this battery and the charging cycle numerical value of this battery; Recognition device, the information that identification is read by above-mentioned reading device, the described information that reads comprises the charging cycle numerical value of discerning this battery variety and this battery; Charging device, the battery in above-mentioned portable electronics are under the situation of secondary cell, can charge to this battery; Writing device, the charging cycle numerical value of portable electronics is write on the wireless identification tag, and the warning message display unit shows the warning message of using battery, with the warning message generation device, the warning message display unit is shown about using the warning message of battery according to charging cycle numerical value.
According to the tenth scheme of the present invention, reading device reads the information that is stored in the wireless identification tag, and described canned data comprises this battery charge cycling numerical value of kind of discerning this battery.Wireless identification tag is fixed on this battery, for example embeds this battery or adheres on this battery.Recognition device, the information that identification is read by above-mentioned reading device, the described information that reads comprises the charging cycle numerical value of discerning this battery variety and this battery.The kind that the information of this battery variety comprises this battery is primary cell and secondary cell for example.The charging cycle numerical information is the number of times that battery has charged.In some cases, these kinds of information comprise for example name of battery manufacturers of some other kinds of information.If the battery in portable electronics is under the situation of secondary cell, charging device can charge to this battery; Reading device and recognition device can determine whether the battery in the portable electronics is secondary cell.Under the situation of secondary cell, writing device is write the number of times that the battery in the portable electronics has charged on the wireless identification tag.The warning message generation device makes the warning message display unit show the warning message of using about battery according to charging cycle numerical value.Under the situation of secondary cell, the increase with the charging cycle number of the minimizing of battery capacity and available time shortens.In this case, necessary with a used battery of new battery altering.So the warning message of demonstration urges the user to buy new battery.
According to first scheme of the present invention, can correctly and effectively show dump energy warning message about present use battery.Therefore, the user be no matter the kind of battery can promptly be utilized the dump energy in the battery, reliably the replacing of pilot cell and easily prepare new battery.
According to alternative plan of the present invention, portable electronics can reduce size and cost.
According to third party's case of the present invention, even under the situation of accommodating place of many battery containers at electrical equipment, the battery of use also can read from wireless identification tag along the state of its location that vertically replaces, and does not need to be provided with many reading devices.
According to the 6th scheme of the present invention, the energy that is consumed by portable electronics can automatically be controlled according to the feature of the battery of present use.Therefore, when the kind of battery changed, the operable time durations of digital camera did not have big variation.So the user uses the kind of this electrical equipment and battery not have what relation.
According to the 7th scheme of the present invention, the energy that portable electronics consumed according to the feature of present use battery, can automatically be controlled and be reduced.Therefore, when the kind of battery changed, the operable time durations of digital camera did not have big variation.Therefore, the user uses the kind of this electrical equipment and battery not have what relation.
According to all directions of the present invention case, store the battery charge cycling numerical value of portable electronics and warn the use information of display unit demonstration about battery according to charging cycle numerical value.Therefore, when charging cycle numerical value during near the performance boundary of battery, warning urges the user to remove to buy new battery.When charging cycle numerical value surpassed battery performance limits, the user can promptly change battery.The user knows the operating limit of battery, and can not make portable electronics malfunctioning because of the operate miss of battery.
According to the 9th scheme of the present invention, store the charging cycle numerical value of the battery in the portable electronics and reduce energy consumption according to charging cycle numerical value.Therefore, can increase the running time of battery, and even after the user forgets to change battery, battery still can use.
According to the tenth scheme of the present invention, the charging cycle value storage of battery is in wireless identification tag, and the warning message display unit shows the information of using about battery according to charging cycle numerical value.Therefore, when battery cycling numerical value during near the limiting performance of battery, warning urges the user to remove to buy new battery.When charging cycle numerical value surpassed the battery limiting performance, the user can promptly change battery.The user can know the operating limit of battery, thereby does not produce the battery misoperation that causes that portable electronics is malfunctioning.
Description of drawings
Fig. 1 comprises the pre-final voltage and the final voltage table of AA alkaline battery and AA Ni-MH battery curve chart and setting;
Fig. 2 represents to be presented at the example of the warning signal of display unit;
Fig. 3 is the block diagram of the described digital camera of the present invention's first scheme;
Fig. 4 represents to show the flow chart of the dump energy warning message of turn-offing the digital camera power supply;
Fig. 5 represents that each end near two AA batteries is provided with the situation of wireless identification tag, and battery is housed in the battery case by mutual longitudinally opposite state, and the battery data reading device is arranged on two places of battery case;
Fig. 6 represents that wireless identification tag is arranged on each medium position longitudinally of two AA batteries, and battery is housed in the battery case by longitudinally opposite state mutually, and the battery data reading device is arranged on the centre position longitudinally of battery case;
Fig. 7 represents the block diagram of the described digital camera of alternative plan of the present invention;
The flow chart that Fig. 8 represents to read battery variety and reduces the process of energy consumption according to the kind of this battery;
Fig. 9 represents to read the kind of battery, shows and reduce the flow chart of the process of energy consumption according to the kind of battery and charging cycle Numerical Implementation warning message;
Figure 10 A is illustrated in the warning message demonstration example of charging cycle numerical value near battery performance limits;
Figure 10 B is illustrated in the warning message demonstration example that charging cycle numerical value surpasses battery performance limits.
Embodiment
Illustrate that with reference to the accompanying drawings digital camera is used as of the present invention preferred first scheme of the battery of portable electronics of the present invention and the use of this camera.
Fig. 3 is the block diagram of the digital camera 2 of the present invention's first scheme.
Camera 2 is the digital cameras with image record and representational role.Master control is carried out in the operation of 22 pairs of whole cameras 2 of central processing unit (CPU).CPU22 according to preset program control camera system, and is used as the warning message generation device as control device, according to the kind generation battery remaining power warning message of the battery of discerning.
The procedure stores that the various data of accurately being controlled by CPU22 need is in the read-only memory that is connected with CPU22 through bus 34 (ROM) 7.This ROM7 is nonvolatil storage device, can be can not write again a kind of or can write again a kind of, the erasable read-only memory of electrically programmable (EEPROM) for example.
Storage device 8 also is used as the device territory of temporary transient storing image data and voice data as the evaluation work device of program charger and CPU.
Camera 2 setting operation buttons 30, it comprises mode selection switch, picture photographing button, menu/OK key, cross key and clear key.Signal input CPU22 from different action button 30.CPU22 is according to the circuit of input signal control camera 2.For example, CPU22 carries out lens drive controlling, picture photographing operation control, image processing control, the control of image recoding/reproduction and to the demonstration control of the display unit 26 of whole display control unit 24.
Mode selection switch is the operating means of selecting between still frame screening-mode, moving image screening-mode and reproduction mode.
The picture photographing button is the action button that the input instruction starting image is taken.Taking under the situation of moving image, the picture photographing button is as the button of image record/stop.Under the situation of taking still frame, the picture photographing button is as cut-off push button.The picture photographing button is made of two-stroke formula switch, switch S 2 closures when it comprises when the picture photographing button is half-open closed the and picture photographing button standard-sized sheet of switch S 1.
Menu/OK key is menu button function and the indication OK push button function with indication display menu on the display screen of display unit 26, and for example indication enters the details of selection and the operation keys of the corresponding operation of execution.Cross key is the operation keys at 4 relevant direction input instructions, and described 4 directions are upwards, downwards, to the right and left.Cross key is as the button (cursor mobile actuating device) of selecting and selecting from the various information units of setting each menu the information unit that shows from menu.On in cross key/reconstruction of image switch when following key amplifies switch or picture reproduction as image when picture photographing.Be used as the button that frame adds (forward/reverse) in a left side in cross key/right button image reproduction mode.The information that clear key is for example selected as the target that remove to require, cancellation instruction details, recover above-mentioned operating condition etc. immediately.
Signal from power supply 28 is also imported CPU22.
Display unit 26 is to be made of the liquid crystal display that can carry out multicolor displaying.Display unit 26 can also can be used as the device of display reproduction document image as the electronic viewfinder of determining the visual angle when picture photographing.Display unit 26 also can be used as the user interface display screen, and the details of the information unit of the information of display menu information and so on, selection, setting on this display screen also comprises the battery remaining power warning message in the time of if desired.The display unit of some other types for example el display device can be used for replacing liquid crystal indicator.Display control unit 24 is carried out the demonstration of control display unit 26 displaying contents.
Digital camera 2 has the tape deck 14 of have media interface (medium load part) and media controller.Recording medium can be inserted media interface.The form of recording medium is not particularly limited in any special type.Any medium for example can be enumerated XD-PictureCard (trade (brand) name) and SmartMedia (trade (brand) name), portable small harddisk, disk, CD and the magnetic-CD of semiconductor memory card and so on.Media controller is carried out conversion of signals, the conversion of signals of input must be arrived the recording medium of suitable insertion media interface.
The picture photographing function of digital camera 2 will be described below.
When selecting still frame screening-mode or moving image screening-mode with mode selection switch, energy is supplied with and is comprised the charge-coupled device (CCD) solid-state image harvester image collecting device 4 of (hereinafter claiming " CCD "), and camera prepares to carry out picture photographing.
Image collecting device 4 comprises a kind of lens devices of Optical devices, and it comprises the picture photographing lens of condenser lens and also is used as the mechanical shutter of aperture.Lens devices is driven by the lens driver electricity, and blade drive device amplifies control, focus control and aperture control by CPU22 control carrying out image.
The imaging on the optical receiving surface of CCD of rays pass through lens device.Multiple photodiode (light receiving element) two-dimensional arrangements on the optical receiving surface of CCD.The redness of main color filter (R), green (G) and blueness (B) are corresponding with diode by predetermined arrangement architecture (Baeyer (Bayer) pattern, G-vitta pattern etc.).CCD has the effect of shutter, promptly controls the charging accumulated time (shutter speed) of each diode.CPU22 is by the charging accumulated time of timer (not shown) control CCD.Some other image collecting device for example MOS type also can be used to replace above-mentioned CCD.
Optical receiving surface imaging at CCD becomes target image, convert signal charge quantity to corresponding incident light quantity by diode, be accumulated in the signal charge of diode, the driving pulse that applies with timer is a benchmark, reads out the voltage signal (picture signal) of corresponding signal electric charge continuously.
From ccd signal output, the corresponding pixel of sampling and R, G and B, and fixing (by two relevant sample treatment) and amplification.R, the G of input become digital signal to output to signal processing apparatus 6 with the B conversion of signals continuously.
Data image signal is by image input controller (not shown) input signal processing unit 6, and image processing apparatus 6 is processed into the input digital image signal according to the instruction of CPU22.Be that image processing apparatus 6 plays image processing apparatus, described image processing apparatus comprises that parallel circuit is (by inserting the specific process of color signal, follow the arrangement of color filter on the ccd signal plate, color signal converted to the treatment circuit of equal parallel electric current), YUV produces circuit, checking gamma circuit, profile correcting circuit and white balance correction circuit.Image processing circuit 6 utilizes storage device 8 according to the demand of CPU22, carries out prearranged signal and handles.
The image input controller comprises storage control, carries out from the control of storage device 8 reading of data with data book and writes control on the storage device 8.
The rgb image data that is input to signal processing apparatus 6 is at signal processing apparatus 6 and comprising that γ proofreaies and correct under many dispositions, converts luminance signal (Y-signal) and color difference signal (Cr and Cb signal) to.The picture signal of handling at signal processing apparatus 6 is stored in storage device 8.
When the image of taking is exported by the display unit 26 that is monitored, be transported to display control unit 24 from storage device 8 reads image data and through bus 34.Display control unit 24 converts the view data of input the signal of predetermined display format (for example colored composite signal of NTSC) to and this signal is outputed to display unit 26.
When operating power switch 28 and action button 30 when CPU22 carries signal, CPU22 sends the control signal of control power supply to power supply control apparatus 12.Power supply control apparatus 12 control power supply circuits 10, the result is that power supply circuits are to each parts power supply.
This electrical equipment can use DC power supply.But, use battery 16 usually.As shown in Figure 6, wireless identification tag 32 is wherein stored the information of each battery 16 in the form of sheets, and longitudinally embeds battery 16 in the middle part at battery 16.For example, the information that is stored in wireless identification tag 32 is indicated the kind of battery, and promptly this battery is primary cell or secondary cell, if this battery is a primary cell, this battery is manganese cell, alkaline battery or lithium battery; If this battery is a secondary cell, this battery is nickel separation cell or Ni-MH battery and the information of indicating the battery manufacturers name.
Wireless identification tag 32 is not limited to above-mentioned sheet.Forming banded wireless identification tag around battery also can use.
When battery 16 was housed in the battery case of digital camera 2, data read/writing device 20 was can detect wireless identification tag 32 these sample loading mode settings that are embedded on the battery 16.Data read/writing device 20 detects wireless identification tag 32 and reads information about battery according to the instruction of CPU22, and the information that reads is sent to CPU22.The kind of the battery information identification battery that CPU22 reads, the name of manufacturer etc.
In digital camera 2 of the present invention, two AA batteries are by longitudinally being housed in the battery case with opposite state mutually.As shown in Figure 6, read/writing device 20 is at the internal face of battery case, form along place of vertical centre of battery case with along the wide direction of battery case, therefore, read at one/writing device 20 can find the wireless identification tag 32 of two batteries.
Read in this case ,/writing device 20 detects the wireless identification tag 32 on first battery, detects the wireless identification tag 32 of second battery then at the wireless identification tag 32 that detects first battery after a while.CPU22 receives the battery information in battery information that detects in the wireless identification tag 32 that is stored in first battery and the wireless identification tag 32 that is stored in second battery simultaneously.
Data read/writing device 20 can be in battery case middle part longitudinally, forms along the circumference of the inner wall surface of battery case.If data read/writing device 20 is to form by this way, can detect wireless identification tag 32 easily and reliably so, no matter the along the circumferential direction fixing position of wireless identification tag 32, as long as wireless identification tag 32 is fixed on battery middle part longitudinally.
If wireless identification tag 32 be arranged on as shown in Figure 5 near on the battery 16 of a battery, must provide in two places of battery case so and read/writing device 20, be to be housed in the battery case with mutually opposite state longitudinally because consider two AA batteries.So, wireless identification tag 32 is fixed on the vertically approximately middle part of battery 16, the result, it is just enough that 20 aforesaid of data read/writing devices are arranged on a place, has significant advantage.
Cell voltage detection device 18 detects the voltage of battery 16 according to the instruction of CPU22.The result that detects of voltage sends to CPU22.Detecting on result's the basis, CPU22 produces a predetermined warning message signal and cuts off power supply signal.
The display packing of the battery remaining power warning signal that uses this digital camera 2 will be described below.
At first, by being that primary cell and AA Ni-MH battery are that secondary cell is that example describes with the AA alkaline battery.
Fig. 1 comprises expression AA alkaline battery and the discharge curve of AA Ni-MH battery and the pre-final voltage and the final voltage table of setting.
In traditional digital camera, the pre-final voltage of AA alkaline battery (voltage during information that promptly battery remaining power of She Dinging is few) is set at 2.2V and final voltage (voltage the when energy content of battery of setting loses information) is set 2.0V.If this setting is under the situation of using AA battery alkaline battery, when employed energy becomes 65%, the warning signal.If this setting is to use under the situation of AA Ni-MH battery, when the energy that uses becomes 96%, the warning signal.Promptly after the warning message signal had shown, the AA alkaline battery temporarily can use.On the other hand, after the warning message signal had shown, the AA Ni-MH battery just can not use in the short time.
In this scheme, the information stores of battery variety is in wireless identification tag, and digital camera detects wireless identification tag and reads the information of battery variety, with the battery variety of identification use.So according to the kind of battery, CPU22 can produce the warning message signal.More particularly, about the AA alkaline battery, pre-final voltage is set at 2.2V, and is identical with the voltage of traditional digital camera.About the AA Ni-MH battery, pre-final voltage is set at 2.35V.Like this, even under the situation of using the AA Ni-MH battery, guarantee and identical residue service time under the situation of using the AA alkaline battery.Final voltage is before the dump energy of battery loses, i.e. power supply stops (camera carries out operating shooting) former seconds, the voltage that reaches immediately.System with, final voltage is set at 2.0V, and is identical with the voltage of every kind of battery in the traditional camera.
In above-mentioned example, be the pre-final voltage of every kind of battery of residue setting service time of reference battery.In addition, the ratio that accounts for battery gross energy number with reference to employed energy number also can be set pre-final voltage.For example, the pre-final voltage of every kind of battery can be set employed energy and account for 65% of gross energy, when reaching pre-final voltage, and the warning signal.
Fig. 4 is the flow chart of expression digital camera 2 uses, therein, shows dump energy warning message signal and after this cuts off power supply.
At first, closed mains switch 28 (in step 50).
Data read/writing device 20 detects the wireless identification tag 32 and the information that reads about battery 16 of each battery 16.Data read/writing device 20 is to the read information of CPU22 transmission about battery 16.CPU22 receives the information (step 52) about battery 16.
From the information that receives battery, CPU22 determines battery of having set and the kind (step 54) of discerning this battery.
Therefore, if determine that battery is an alkaline battery, cell voltage detection device 18 detects the magnitude of voltage (step 56) of each battery 16.Send the magnitude of voltage that detects to CPU.CPU22 determines whether the magnitude of voltage that detects equates (step 58) with the pre-final voltage value of alkaline battery.If do not reach pre-final voltage, process turns back to step 56.If reached pre-final voltage, CPU22 produces warning message signal, display unit 26 warning signals (step 60).
Fig. 2 represents the example by display unit 26 warning signals.When common use, promptly be lower than the situation of pre-final voltage at the magnitude of voltage of battery, battery does not have signal to show (<1 〉).When the magnitude of voltage of battery equated with pre-final voltage, energy content of battery mark comprised a luminescent marking that shows dump energy (<2 〉).
Cell voltage detection device 18 further detects the magnitude of voltage (step 62) of battery 16.The magnitude of voltage that detects sends CPU22.CPU22 detects magnitude of voltage and whether equates (step 64) with the final voltage of alkaline battery.If do not reach final voltage, process turns back to step 62.If reached final voltage, CPU22 changes the warning message signal that shows on display unit 26, and detects rear indicator 26 shows signal (among Fig. 2<3 〉) (step 65) at final voltage.This signal is the flicker of battery mark.
After this, cut off the power supply (step 66) of the process of carrying out, cut off power supply (step 80).
If the measurement result of battery variety is a Ni-MH battery in step 54, cell voltage detection device 18 detects the magnitude of voltage (step 68) of each battery 16.The magnitude of voltage that detects sends to CPU22.CPU22 determines whether the magnitude of voltage that detects equates (step 70) with the pre-final voltage value of Ni-MH battery.If do not reach pre-final voltage, process turns back to step 68.If reached pre-final voltage value, CPU22 produces warning message and at display unit 26 warning signals (step 72).Under the situation of Ni-MH battery, also use warning message signal example in the figure expression.In common use, promptly be lower than the situation of pre-final voltage at the magnitude of voltage of battery, battery does not have signal to show (<1 〉).When the magnitude of voltage of battery equated with pre-final voltage, energy content of battery mark comprised a luminescent marking that shows dump energy (<2 〉).
Cell voltage detection device 18 further detects the magnitude of voltage (step 74) of battery 16.The magnitude of voltage that detects sends to CPU22.CPU22 determines whether the magnitude of voltage that detects equates (step 76) with the pre-final voltage value of Ni-MH battery.If do not reach pre-final voltage, process turns back to step 74.If reached pre-final voltage value, CPU22 changes the warning message signal that shows on display unit 26, and detects rear indicator 26 shows signal (among Fig. 2<3 〉) (step 77) at final voltage.This signal is the flicker of battery mark.
After this, cut off the power supply (step 78) of the process of carrying out, cut off power supply (step 80).
In this scheme, display unit 26 is liquid crystal displays that can multicolor displaying and shows battery warning message signal on LCDs.But display system is not limited to that this is a kind of.Battery warning message signal can show on the LCDs of the indicating characteristic of the liquid crystal display of the display image that separate to be provided with.
In this scheme, show energy contents of battery residue warning message signals by two steps: the step after detecting pre-final voltage and detecting final voltage after step.Yet display system is not limited to that this is a kind of.After display unit also can be formed in the battery variety identification of digital camera 2, the dump energy of meticulousr expression battery.But this arrangement of this scheme guarantees the user and can correctly discern the scope of application of battery, no matter the kind of battery how.Therefore, though the user use certain battery and situation about replacing with different types of battery afterwards under, the user can indicate so reliably and select to change the time of battery and can prepare new battery at reasonable time.
In the above-mentioned example of arranging, the kinds of information of battery is stored in the wireless identification tag, and digital camera detects wireless identification tag and reads the information of battery variety, with the kind of the battery of discerning present use.Be not the information of battery variety information, for example the information of battery manufacturers name also can be stored in the wireless identification tag, according to the variation a little of battery capacity in manufacturer and battery variety, can produce battery remaining power warning message signal.
Though this scheme supposes that by being applied to digital camera purpose of the present invention is described,, the present invention can be applicable to not be the portable electronics of digital camera certainly.
With reference to the accompanying drawings, digital camera is described according to the present invention as the 2nd preferred version of the present invention of portable electronics.Represent with same label that with parts identical in first scheme their explanation no longer repeats.
Fig. 7 is the block diagram of the digital camera 120 of expression alternative plan of the present invention.
Camera 120 is the digital cameras with record and representational role.Central processing unit (CPU) 22 is carried out the master control of whole machine 120 operations.CPU120 requires generation device according to preset program control camera system with as the control of carrying out this control, so that reduce the energy consumption of digital camera 120 according to the camera kind of identification as control device.
CPU22 executive program and the various data that need control of control etc. are stored in bus 34 and ROM7 that CPU22 is connected.
Storage device 8 also is used as the device territory of temporary transient storing image data and voice data as the evaluation work device of program charger and CPU22.
Camera 120 is provided with the action button 30 that comprises mode selection switch, picture photographing button, menu/OK key, cross key and clear key.Signal input CPU22 from these different operating keys 30.CPU22 is according to the circuit of the signal controlling camera 120 of input, also by stroboscope control device 36 control stroboscopes 37.
Display control unit 24 is carried out the demonstration scheduled operation of displaying contents according to the instruction of CPU22.Displaying contents in display unit 26 is visible by the flicker 40 that is arranged on the band backlight in the display unit 26.The control of backlight flicker 40 and the brightness of backlight 40 are to carry out by backlight control device 42 according to the instruction of CPU22.
When the image of taking is exported by the display unit 26 that is monitored, read out view data from storage device 8, and be transported to display control unit 24 through bus 34.Display control unit 24 converts the picture signal of input the signal (for example NTSC color composite audio signal) of predetermined display format to and to display unit 26 output signals.When the display unit 26 of the image monitoring of taking was exported, backlight 40 was luminous by the image output that connects.In the shooting process of picture, backlight 40 is luminous.In the process of reproducing, backlight 40 is also luminous.But, at some time durations, though reproduce, if there is not the key executable operations, for energy-conservation stop luminous.
When operating power switch 28 and action button 30 when CPU22 carries signal, CPU22 sends the control signal of control power supply to power supply apparatus for controlling of supply 12.Power supply apparatus for controlling of supply 12 control power supply circuits 10, so power supply circuits 10 are supplied with each parts with the electricity of requirement.
Can use DC power supply.But, use battery usually.
If battery 16 is secondary cells, they can charge by actuating battery charging device 38 according to the instruction of CPU22.In this case, the power supply that adds from the DC power supply that is connected with digital camera 120.
Below the process that digital camera 120 cuts down the consumption of energy will be described.
With reference to figure 1, at first, be that AA alkaline battery and secondary cell are that Ni-MH battery is that example describes with primary cell.
In traditional digital camera, the pre-final voltage of AA alkaline battery (voltage that shows in display unit 26 during information that promptly battery remaining power of She Dinging is few) is set at 2.2V and final voltage (voltage that shows on display unit 26 when the energy content of battery of setting loses information) is set 2.0V.If this setting is under the situation of using AA battery alkaline battery, when employed energy becomes 65%, the warning signal.If this setting is to use under the situation of AA Ni-MH battery, when the energy that uses becomes 96%, the warning signal.In each battery, when cell voltage becomes when equating with final voltage, employed energy values is 100%.
From the discharge characteristic of two kinds of batteries as can be known, if digital camera 120 is carried out identical energy control, the life-span of Ni-MH battery is than the length of alkaline battery.As everyone knows, the internal resistance of alkaline battery is higher than the internal resistance of Ni-MH battery.When using alkaline battery, energy consumption can be dropped to the limit of voltage drop and be improved battery life.In chilling process, use discharge to reduce.
In alternative plan, data read/writing device 20 detects the wireless identification tag 32 that is fixed on the battery 16 and reads battery information, realizes cutting down the consumption of energy according to battery variety.
Be described in operating process under the situation of cutting down the consumption of energy with reference to figure 8.Fig. 8 is that expression is read battery variety and according to the cut down the consumption of energy flow process of process of battery variety.
At first, mains switch 28 closures (step 150).Read/writing device 20 detects the wireless identification tag 32 of each battery and reads the information (step 152) that is stored in the wireless identification tag 32.
Discern the kind (step 154) of battery from the battery information that reads.The information of the battery that promptly reads sends to CPU22, and the kind of CPU22 identification battery is determined the battery that present employed any one battery is alkaline battery, Ni-MH battery or some other kind.
If the battery of determining is the high the sort of battery of internal resistance (for example alkaline battery), the flicker electric current of the backlight 40 of display unit 26 (LCD monitor) reduces so, faint light, the pulse frequency of CPU22 reduces, reduce processing speed, stroboscope 37 charging currents reduce, and reduce the charging interval (step 156).These operations are automatically carried out.As a result, reduce energy consumption, reduced the speed that cell voltage reduces.Reduce and to set before operation is applicable to this battery carrying out energy.
About the battery of high internal resistance is arranged, setting can be carried out like this, when being reduced to room temperature, except that the aforesaid operations in step 156, carrying out other energy consumption and reduces operation, automatically cuts off display unit 26, prolongs digital camera 120 spendable time durations.
The energy that the user can select digital camera not carry out in step 156 reduces the pattern of operating.The user carries out this selection supply with the setting of control ON/OFF from energy before.In this case, add digital camera 120 to detecting whether to set from the open/close execution function of energy supply control.Promptly set from energy according to user's selection and supplied with the control ON/OFF, (the * A among Fig. 8) carries out supplying with the open/close operation that detects of control from energy immediately before step 156.Find that process is directly to step 156 at the state of opening if supply with control from energy.If find that from energy control process is directly to step 158 at the state that closes, replace step 156.The reason that can select like this is that the user wishes normally to carry out the function of relevant step 156 with during handling above cutting down the consumption of energy.
After this, determine whether cell voltage reaches final voltage (step 158).If cell voltage reaches final voltage, cut off power supply (step 162) so.If cell voltage does not reach final voltage, determine then whether mains switch cuts off.If mains switch does not cut off, process turns back to step 158.If mains switch cuts off, process is carried out step 162 and is closed supply power.
In alternative plan, according to the kind of battery, the control of the energy of digital camera can automatically be carried out, and therefore, when the kind of battery changes, does not have big variation at the time durations of digital camera between the operating period.Therefore, the user can use digital camera, does not consider the kind of battery.
In the description of alternative plan, the energy control method of setting in method for monitoring such as the step 156.But, can select to use a kind of in above-mentioned three kinds of methods or two kinds.
In alternative plan, carry out energy control according to battery variety.But, also can carry out energy control according to battery manufacturers.In this case, the name of battery manufacturers comprises the information that is stored in the wireless identification tag 32 and the kind of battery, and battery power consumption control can be according to the kind of manufacturer and battery, and the capacity that changes battery a little carries out.
Set before step 156 and can carry out according to manufacturer yet, therefore this setting does not automatically change step 156.
Though being applied to digital camera by hypothesis the present invention, this scheme is illustrated,, the present invention certainly is applied to not be the portable electronics of digital camera.
The 3rd preferred scheme as the digital camera of portable electronics of the present invention is described with reference to the drawings.The parts identical with alternative plan represent that with identical label their description will no longer repeat.
This camera 120 is the digital cameras with record and representational role.Central processing unit (CPU22) is carried out the master control of the operation of whole camera 120.CPU22 is as control device, according to preset program control camera system, information signal generation device by way of caution, if battery is a secondary cell, it calculates the charging times (charging cycle number) of the battery 16 in digital camera 120, and shows about the warning message signal of battery with as energy reduction indicating device according to the charging cycle digital display, if battery is a secondary cell, it counts the instruction that issuing command cuts down the consumption of energy according to charging cycle.
By the CPU22 executive program, the various data that need control etc. are stored in the ROM7 that is connected with CPU22 through bus 34.
Storage device 8 also is used as the device territory of temporary transient storing image data and voice data as the program load device evaluation work device of CPU22.The charging cycle number of the battery in digital camera 120 calculates by CPU22, is stored in storage device 8.
Camera 120 is provided with the mode selection switch that comprises selector switch, picture photographing button, menu/OK key, cross key and clear key.Signal input CPU22 from these different action buttons 30.CPU22 is according to the circuit of input signal control camera 120, also by stroboscope control device 36 control stroboscopes 37.
Display unit 26 also is used as the user interface display screen, the information of display menu information, the details of selecting information unit, setting, battery remaining power (if desired) and so on this screen.
The information that embedding the wireless identification tag 32 on each battery 16 provides comprises battery variety information, whether be primary cell or secondary cell promptly about battery, if battery is a primary cell, whether about battery is manganese cell, alkaline battery or lithium battery, if battery is a secondary cell, whether about battery is ni-cd battery or Ni-MH battery, shows the numbering of the battery of the unique appointment of the name of battery manufacturers and manufacturer.
When battery 16 was housed in the battery case of camera 120, data read/writing device 20 was arranged on such position of the wireless identification tag 32 that can find to be embedded on the battery 16.Data read/writing device 20 detects wireless identification tag 32, reads information about battery according to the instruction of CPU22, and the information that reads is sent to CPU22.CPU22 is from the numbering of the battery of the name of the kind of the information Recognition battery of the battery that reads, manufacturer, the unique appointment of manufacturer etc.Data read/writing device 20 is write the number of times that the 16 each batteries 16 that charge of the battery in the digital camera 120 have charged on the wireless identification tag 32.
If battery 16 is secondary cells, according to the instruction of CPU22,38 pairs of batteries of actuating battery charging device charge.In this case, the additional energy of direct-current power supply from being connected with digital camera 120.After finishing by battery charger 38 charging, show that the information that charging is finished sends to CPU22, CPU22 calculates one and abandons the electricity circulation, and sends and count storage device 8.At storage device 8, the sum of storage charging cycle.
Below, count the procedure for displaying of warning message signal and energy consumption with describing according to the charging cycle in the digital camera 120.
In this scheme, data read/writing device 20 detects the wireless identification tag 32 that is fixed on the battery 16, and reads battery information, thus according to the kind and the charging cycle number of battery, realizes the demonstration of warning message signal and cuts down the consumption of energy.
Be described in operating process under warning and the situation about cutting down the consumption of energy with reference to figure 9.Figure is illustrated under the situation that reads battery variety and warning and cut down the consumption of energy, according to the flow process of the process of battery variety and charging cycle number.
At first, disconnecting power switch 28 (step 250).Data read/writing device 20 detects the wireless identification tag 32 of each battery 16, and reads the battery information (step 252) that is stored in the wireless identification tag 32.Discern the kind (step 254) of battery from the battery information that reads.The battery information that promptly reads sends to CPU22, and the kind of CPU22 identification battery is determined each battery of use at present, for example is the battery of alkaline battery, Ni-MH battery or some other kind.
Therefore, determine automatically also whether battery is primary cell or secondary cell.
If the battery of determining is a primary cell, process carry out step 262 so, determines whether mains switch closes.If battery is a secondary cell,, check the charging cycle number that is stored in 8 tins of batteries of storage device by the producer's that provides battery numbering.Under the situation of wireless identification tag 32, replace the information that obtains by above-mentioned steps in the information stores of the charging cycle number of battery, check the charging cycle number by only reading in battery information in the wireless identification tag 32.
If the charging cycle number of determining in step 254 is not more than the performance boundary of battery, whether the charging cycle number of determining battery then is near the limit (step 256) of battery.If the battery charge period is kept off the limit, set energy control (step 260) according to the charging cycle number of battery so.If promptly the charging cycle number of battery is not too big, operation<1〉reduce the electric current of stroboscope 37, so that increase the time of charging.If the charging cycle number of battery is a mediant, operation<2〉reduce the pulse frequency of CPU operate<1 so that reduce to carry out to remove〉processing speed.If the charging cycle number is big number, operation<3〉reduce the electric current of the backlight 40 of display unit 26 (LCD monitor), remove operation<1〉and<2, execution light duskiness.These operations are automatically to carry out.As a result, energy consumption reduces, and the speed that voltage reduces reduces.According to before every kind of battery, can carry out the setting that energy reduces operation.
About having the battery of high internal resistance, when room temperature reduces, except that the above-mentioned operation in step 260, carry out other energy consumption and reduce operation, automatically disconnect display unit 26, so that prolong during the service time of digital camera 120.
The user can find that the energy that digital camera 120 is not carried out in step 260 reduces the pattern of operating.Supply with the setting of control ON/OFF from energy before, the user can utilize this selection.In this case, will set to carry out to detect whether open/close function is added digital camera 120 to about supplying with control from energy.Set if promptly supply with the control ON/OFF from energy, before step 260, carry out immediately supplying with the operation that the control ON/OFF detects from energy according to user's selection.If what detect supplies with the state that control is in out from energy, process directly carry out step 260 so.If what detect supplies with the state that control is in the pass from energy, process directly carry out step 262 so, replaces carry out step 260.The reason user that can carry out this selection wishes the function of normally carrying out relevant step 260 during cutting down the consumption of energy surpassing.
After step 260, determine whether mains switch has closed (step 262).If mains switch is not closed, process turns back to 262.If mains switch is closed, process carries out 264 so, then deenergization.
If if determine that in step 254 the charging cycle number surpasses battery has performance boundary or determine battery charge circulation and is presented at display unit 26 (comprising LCD) (step 258) near the performance boundary charging cycle warning message signal of battery in step 356.For example, as this warning message signal, for example Figure 10 A show in joyous electric period near the signal under the situation of battery performance limits.Surpass under the situation of battery performance limits at the charging cycle number, for example the signal that shows among Figure 10 B.
After step 258, process proceeds to above-mentioned steps 260.In this case, the charging cycle number is near battery performance limits or surpass battery performance limits, simultaneously executable operations<1 〉,<2 and<3.Under the situation of using lithium ion battery,, can utilize the time to reduce with the minimizing of battery capacity because lithium ion battery has the increase with the charging cycle number.
In third party's case, the warning message signal automatically is presented on the digital camera, and kind and charging cycle number according to battery can make the user grasp the operating limit of battery, and prepare new battery, and battery can critical fault not occur by wrong degraded so that camera.Up to surpassing under the situation of battery operating limit, set low energy consumption at the digital camera that uses for, increase the operating time of battery, even after the user forgot to change battery, battery can also use.
In the description of third party's case, three kinds of method for monitoring as the power supply control setting in step 260.But above-mentioned three kinds of methods can be used the combination of two kinds of methods.
Selection according to the user also can be set, and sets for about step 260 not change the such mode of step 260 automatically.
If the information stores of charging cycle number at wireless identification tag 32, is not to determine the charging cycle number with digital camera 120 with charger, warning message signal and energy consumption reduction is accurately set and can be carried out.
Though the sad hypothesis the present invention of this scheme uses average and digital camera is illustrated, the present invention can be used for not being the portable electronics of digital camera certainly.

Claims (3)

1. can use the portable electronics of battery for one kind, it is characterized in that described electrical equipment comprises as power supply:
Data read/writing device, read/write information in the wireless identification tag on being fixed on battery, the information that wherein reads comprises the information that is used to discern this battery, the information that writes comprises the charging cycle number of times of described battery;
Recognition device, the information that identification is read by described data read/writing device, the described information that reads comprises the information that is used to discern this battery;
Charging device, the battery in described portable electronics are under the situation of secondary cell, and this battery is charged;
Charging cycle storage device, the battery in described portable electronics are under the situation of secondary cell, according to the identifying information of this battery, are stored in the charging cycle numerical value of the battery in the described portable electronics;
The warning message display unit shows the use information about this battery; With
The warning message generation device according to the charging cycle numerical value of this battery, produces the warning message about the battery use that described warning message display unit shows.
2. can use the portable electronics of battery for one kind, it is characterized in that described electrical equipment comprises as power supply:
Data read/writing device, read/write information in the wireless identification tag on being fixed on battery, the information that wherein reads comprises the information that is used to discern this battery, the information that writes comprises the charging cycle number of times of described battery;
Recognition device, the information that identification is read by described data read/writing device, the described information that reads comprises the information that is used to discern this battery;
Charging device, the battery in described portable electronics are under the situation of secondary cell, and this battery is charged;
Charging cycle storage device, the battery in described portable electronics are under the situation of secondary cell, according to the identifying information of this battery, are stored in the charging cycle numerical value of the battery in the described portable electronics;
Power control is controlled the energy of described portable electronics consumption so that reduce energy consumption; With
Energy reduces indicating device, according to the numerical value of charging cycle, indicates described power control to reduce catabiotic numerical value.
3. can use the portable electronics of battery for one kind, it is characterized in that described electrical equipment comprises as power supply:
Reading device reads canned data in the wireless identification tag that is fixed on the battery, and described canned data comprises the kind of this battery and the information of this battery charge cycling numerical value;
Recognition device, the information that identification is read by described reading device, the described information that reads comprise the kind of this battery and the charging cycle numerical value of this battery;
Charging device, the battery in described portable electronics are under the situation of secondary cell, and this battery is charged;
Writing device will be written on the wireless identification tag by the charging cycle numerical value of battery in described portable electronics;
The warning message display unit shows the use warning message about this battery; With
The warning message generation device according to the charging cycle numerical value of this battery, produces the warning message about the battery use that described warning message display unit shows.
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