CN101251382B - Electronic apparatus, signal compensation device, and signal compensation method - Google Patents

Electronic apparatus, signal compensation device, and signal compensation method Download PDF

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Publication number
CN101251382B
CN101251382B CN2008100924057A CN200810092405A CN101251382B CN 101251382 B CN101251382 B CN 101251382B CN 2008100924057 A CN2008100924057 A CN 2008100924057A CN 200810092405 A CN200810092405 A CN 200810092405A CN 101251382 B CN101251382 B CN 101251382B
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signal
angular
rate sensor
unit
data
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CN101251382A (en
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臼田裕
宫崎英治
山近慎二
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Sony Corp
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Sony Corp
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Abstract

An electronic device that prevents a failure caused by a temperature drift of an angular velocity sensor, and a signal compensation system and a signal compensation method for compensating for the temperature drift are provided. The present invention provides a mechanism including an angular velocity sensor that outputs a first signal in accordance with a rotational angular velocity, for example, a voltage in a graph alpha at a given temperature; means for storing in advance a graph beta, which is data of a second signal normally output by the angular velocity sensor that is in a stationary state; means for detecting a stationary state; means for extracting the difference between the first signal and the second signal when the stationary state is detected; means for compensating for the first signal based on the extracted difference signal; and a display unit that scrolls and displays an image based on the compensated signal. This prevents a failure caused by the temperature drift of the angular velocity sensor.

Description

Electronic apparatus, signal compensation apparatus and method for compensating signal
Technical field
The present invention relates to such as Electronic apparatus such as portable terminal device or portable phones, carry the signal compensation apparatus on this device and the method for compensating signal that in this device, uses.
Background technology
JP 2002-7027 communique has disclosed the movement according to the housing of the portable device able that consists of portable terminal device or portable phone etc., the technology of the image that shows in display part of rolling.For example, if the user of hand-held this device moves this device to right, then image rolls to right too.The unit that moves as the sensing housing has adopted angular-rate sensor.For example, detect the value as the angular-rate sensor benchmark, the variation from reference value is exported as electric signal, make picture rolling according to Output rusults.
Yet, the angular-rate sensor that in this instrument, uses, its reference value changes because of environment temperature, namely causes temperature drift.Temperature drift is exported as low frequency, and the rolling of image is had harmful effect.For example, though user's mobile device not, can be created in also that image that display part shows rolls without authorization or picture to a class misoperation that allows the different direction of the direction of its rolling roll from the user.
The Electronic apparatus, signal compensation apparatus and the method for compensating signal that provide the temperature drift that can prevent owing to angular-rate sensor to cause misoperation are provided in view of this class situation.
Summary of the invention
In order to address the above problem, the feature of the Electronic apparatus of emphasis of the present invention is to possess: the angular-rate sensor of exporting 1st signal corresponding with sense of rotation angular velocity; The unit of the data of the 2nd signal of the original output of the described angular-rate sensor of pre-stored stationary state; Unit for detection of stationary state; When detecting described stationary state, extract the unit of the difference of described the 1st signal and described the 2nd signal out; According to the described differential signal that is drawn out of, the unit that described the 1st signal is compensated; According to the described signal that is compensated, the display part that picture roll is shown.
The action of human arm is take ancon or shoulder as fulcrum.The action that the user allows housing move aloft is similar to the sphere action.As long as be angular velocity for the speed that detects the action of this arm detects along the arm translational speed of sphere.
The relation of acceleration and speed generally represents with following formula.
Acceleration
Figure S2008100924057D00021
Speed V = Σ i = 0 t αi (acceleration) ... formula 1
According to formula 1 as can be known, if acceleration transducer is arranged, then can obtain speed by on certain hour width t, resulting data being carried out integration.And if obtained the moving body speed of certain certain hour, then can further obtain displacement by this velocity amplitude being carried out integration, can determine rolling amount.
Yet, obtain the displacement of moving body from acceleration, must carry out time-based 2 repeated integrals, therefore respond slow or easily produce cumulative errors.And acceleration transducer is compared the impact that is subject to easily acceleration of gravity with angular-rate sensor, therefore has the possibility that error occurs.As mentioned above, in order to detect the action of arm, as long as detect angular velocity.So the present invention has adopted angular-rate sensor as the means that detect amount of movement.
If ask rolling amount according to angular velocity, then suc as formula 2.
Rolling amount L = Σ i = 0 t ωi (angular velocity) ... formula 2
Angular-rate sensor mainly is the vibrations that the touch because of hand for detection of electronic device etc. causes.The vibrations that cause because of the touch of hand are high frequencies of short wavelength.When the vibrations that the touch that detects because of hand causes, only export high frequency such as filtering low frequency with Hi-pass filter etc.Based on the output of temperature drift because be low frequency and being filtered.Therefore, when the vibrations that the touch that detects because of hand causes, can not produce the problem that occurs misoperation because of temperature drift.
The detection action of angular-rate sensor of the present invention is that the action that the display part limit is moved device is being seen with eyes in the user limit, is long wavelength's low frequency.Therefore, the action that device is moved will influence each other with above-mentioned low frequency based on temperature drift.
According to the present invention, the value of temperature drift is extracted in the output of the angular-rate sensor in the time of can remaining static by comparison means out, and take this value as the basis, output that can the offset angle speed pickup.
In the present invention, the output of the angular-rate sensor of the pre-stored device that remains static in a certain temperature.Then, detection is such as the output of the angular-rate sensor of the device that remains static in another temperature.The poor of the reference value that changed because of temperature drift extracted in the output of more detected output and pre-stored angular-rate sensor out.The output of angular-rate sensor had overlapped the output of movement-based and based on the output of temperature drift when device was moved.The difference of the reference value of extracting out is equivalent to the output based on temperature drift.Therefore, remove the poor of the reference value of extracting out by the output of angular-rate sensor when device is moved, just can only obtain the output of movement-based.The angular velocity of supposing this drift part is Δ ω k, and amended rolling amount becomes formula 3.
Rolling amount after the compensation L = Σ i = 0 t { ωi - Δωk } Formula 3
Thus, can not produce because of the temperature drift of angular-rate sensor the misoperation that image that display part shows rolls without authorization.
It is desirable at this, in above-mentioned Electronic apparatus, the stationary state detection means be for detect this Electronic apparatus for the speed component of prescribed direction and displacement component and the acceleration transducer that uses.
Angular-rate sensor is generally very inresponsive for linearly operating.And on the other hand, even the acceleration transducer linearly operating also can detect the acceleration when mobile.Acceleration transducer is suitable for the detection of absolute motion, therefore can be in the traveling priority of pick-up unit, and the also mobile stationary state of pick-up unit.Thus, do not need the sensor that detects stationary state is set in addition, can avoid the complicated of disposal system and the processing of realization high-level efficiency.
Relative therewith, angular-rate sensor is suitable for the detection of relative motion, therefore can detect the amount of movement of hand, arm.The main situation of using acceleration transducer is compared with the situation of main use angular-rate sensor, and the cumulative errors when bad response and integration is large.If use acceleration transducer to survey but only angular-rate sensor is surveyed inadequate linearly operating, then can suppress the response variation, become slow in reacting thereby prevent from rolling.In the present invention, by acceleration transducer as angular-rate sensor assist use, also very abundant for the susceptibility of linearly operating, the more properly movement of sniffer.
The feature of other Electronic apparatus of the present invention is to possess: the angular-rate sensor of exporting 1st signal corresponding with sense of rotation angular velocity; The unit of the 2nd signal data of the original output of the described angular-rate sensor of pre-stored stationary state; Button; When pressing described button, extract the unit of described the 1st signal and described the 2nd signal differential out; According to the described differential signal that is drawn out of, the unit that described the 1st signal is compensated; According to the described signal that is compensated, the display part that picture roll is shown.
According to this structure, the user can compensate arbitrarily by press the button that is arranged on the Electronic apparatus when static.Come thus to prevent the misoperation of locking apparatus.
The present invention is not only applicable to Electronic apparatus and also is widely used in signal compensation apparatus, and can be used as method for compensating signal and understand.
The feature that is the signal compensation apparatus of the other viewpoint of the present invention is to possess: the angular-rate sensor of exporting 1st signal corresponding with sense of rotation angular velocity; The unit of the 2nd signal of the original output of the described angular-rate sensor of pre-stored stationary state; Unit for detection of stationary state; When detecting described stationary state, extract the unit of described the 1st signal and described the 2nd signal differential out; According to the described differential signal that is drawn out of, the unit that described the 1st signal is compensated.
The feature of other signal compensation apparatus of the other viewpoint of the present invention is to possess: the angular-rate sensor of exporting 1st signal corresponding with sense of rotation angular velocity; The unit of the 2nd signal data of the original output of the described angular-rate sensor of pre-stored stationary state; Button; When pressing described button, extract the unit of described the 1st signal and described the 2nd signal differential out; According to the described differential signal that is drawn out of, the unit that described the 1st signal is compensated.
The feature of the method for compensating signal of the other viewpoint of the present invention is to possess: the operation that detects stationary state; Read from the operation of the 1st signal of angular-rate sensor output; Read the operation of original the 2nd signal data of exporting of described angular-rate sensor of stationary state from memory storage; When detecting described stationary state, extract the operation of described the 1st signal that is read and the 2nd signal differential out; According to the described differential signal that is drawn out of, the operation that described the 1st signal is compensated.
Description of drawings
Fig. 1 is the oblique view of the display device outward appearance of expression an embodiment of the present invention.
Fig. 2 is that expression is with the block diagram of the display device hardware configuration of embodiment.
Fig. 3 A, Fig. 3 B are the oblique views of the angular-rate sensor that uses in the display device with embodiment.
Fig. 4 A, Fig. 4 B are the curves of output of the angular-rate sensor that uses in the display device with embodiment.
Fig. 5 is the oblique view of the acceleration transducer that uses in the display device with embodiment.
Fig. 6 is that expression is with the oblique view of the display device part of embodiment.
Fig. 7 is the process flow diagram of expression temperature drift compensation action.
Fig. 8 is the figure of expression temperature drift compensation principle.
Fig. 9 is the process flow diagram of expression display device action.
Figure 10 is the figure of initial picture one example of expression display device demonstration.
Figure 11 is the figure of amount of money hint image one example of expression display device demonstration.
Figure 12 is the figure of content images one example of expression display device demonstration.
Figure 13 is the figure of other example of content images of expression display device demonstration.
Embodiment
Followingly according to accompanying drawing embodiment of the present invention is described.
(display device)
According to Fig. 1 and Fig. 2, the display device of Electronic apparatus one example of the present invention is described.
Fig. 1 is the Electronic apparatus oblique view of an embodiment of the present invention.Fig. 2 is the block diagram of the hardware configuration of this display device of expression.
As shown in Figure 1, but display device 1 has for example housing 2 of user's single-hand handling ﹠ size.
The front 2a of housing 2 is provided with loudspeaker 4, transmitter 5, reset button 10, also is provided with to comprise that OK button 7a, Undo button 7b and gamma camera take the operating portion of button 7c, freely load and unload for example loading part 9 of bar-shaped storage medium 8.
The back side 2b of housing 2 is provided with gamma camera 3.Gamma camera 3 is by consisting of such as the CCD gamma camera.
The side 2c of housing 2 is provided with display part 6.Display part 6 is by consisting of such as color liquid crystal display arrangement.The side 2d of housing 2 is provided with Handheld Division 11.
As shown in Figure 2, the formation of display device 2 is, remove connection CPU15 in bus 14, ROM16, flash memory (Flash Memory) 17, RAM18, storage medium interface 19, beyond the sensor interface 20, also connect other various interface, TTY (Tele Typewriter) 21 for example, as NIC (network interface unit), Ethernet (registered trademark) plug-in unit (Ethernet (registered trademark) Board) 22 for example, image processing part spare (Image Processing Unit) 23, Visca interface (Visca Interface) 24, VGA plug-in unit (VGA Board) 25, audio frequency and video interface (Audio ﹠amp; Video Interface) 26.This display device 1 integral body of CPU 15 overall controls.ROM16 arranges for the program of storing its action needs.The so-called program that needs refers to such as the program for change-over switch described later etc.Flash memory 17 is to arrange for storing the data that need.The so-called data that need refer to as described later in certain temperature the output of angular-rate sensor etc.The working space of RAM18 when processing uses.
Connect loading part 9 at storage medium with interface 19.With loading part 9 in carry out communicating by letter of data between the storage medium 8 that loads.
Connect 20 through A/D converter 27, low-pass filter 29 be connected in parallel angular-rate sensor 12 and acceleration transducer 13 at sensor.
TTY (Tele Typewriter) 21 is connected with the various buttons in aforesaid operations district.
Ethernet plug-in unit (Ethernet Board) 22 can connect Ethernet.Such as connection server, be connected to the Internet through this server through Ethernet.
Connect gamma camera interface (Camera Interface) 28 at image processing part spare (Image Processing Unit) 23.Connect above-mentioned CCD gamma camera 3 at gamma camera interface 28.Can be taken into the image that is connected by CCD gamma camera 3 in the display device 1, also can be in display part 6 demonstrations.
Connect outside personal computer etc. at Visca interface (Visca Interface) 24.Can carry out the various controls of display device 1 through this interface.
At the liquid crystal indicator of VGA plug-in unit (VGA Board) 25 connections as above-mentioned display part 6.
At audio frequency and video interface (Audio ﹠amp; Video Interface) equipment of 26 connection audio video systems.Can be taken into the signal from audio video system equipment in the display device 1 through this interface 26, perhaps conversely to audio video system equipment output audio signal and picture signal.
(angular-rate sensor and acceleration transducer)
Next according to Fig. 3 A to Fig. 6, angular-rate sensor and the acceleration transducer that is arranged on display device 1 described.
Fig. 3 A and Fig. 3 B are that expression is about the content of angular-rate sensor.Fig. 4 A and Fig. 4 B are that expression is from the result curve of angular-rate sensor output.Fig. 5 is that expression is about the content of acceleration transducer.Fig. 6 is the installation site of expression angular-rate sensor and acceleration transducer.
Angular-rate sensor 12 is that the angular velocity of display device 1 sense of rotation is surveyed, and the element of exporting as voltage, for example be, with mobile detection side be the rectangular shape that the length of 1cm, vertical direction is respectively 0.5cm and 0.3cm to the length of parallel direction.
The action of human arm can be similar to the action on the sphere centered by ancon or shoulder.As shown in Figure 3A, when the user moves this display device 1, for example can become along the action of the α direction of the sphere take ancon 28 as fulcrum.And in order to detect the responsiveness of this arm, can detect along the arm translational speed of sphere is that angular velocity gets final product.Generally represent with following formula with the length velocity relation of acceleration.
Acceleration
Figure S2008100924057D00071
, speed V = Σ i = 0 t αi (acceleration) ... formula 1
Can know from formula 1, if having sense acceleration such as acceleration transducer described later, just can obtain speed by on certain hour width t, resulting data being carried out integration.And if obtained the translational speed of the display device 1 of certain certain hour, then can further obtain displacement by this velocity amplitude being carried out integration, can determine the rolling amount of picture.
Yet, obtain the displacement of display device 1 from acceleration, must carry out time-based 2 repeated integrals, therefore respond slow or easily produce cumulative errors.And as mentioned above, in order to detect the action of arm, as long as detect angular velocity.So the present invention has adopted angular-rate sensor 12 as the means that detect amount of movement.
If ask the rolling amount of picture according to angular velocity, formula 2 then arranged.
Rolling amount L = Σ i = 0 t ωi (angular velocity) ... formula 2
Angular-rate sensor 12 mainly is the vibrations that the touch because of hand for detection of electronic device etc. causes.The vibrations that cause because of the touch of hand are high frequencies of short wavelength.When the vibrations that the touch that detects because of hand causes, only export high frequency such as filtering low frequency with Hi-pass filter etc.Based on the output of temperature drift because be low frequency and being filtered.Therefore, when the vibrations that the touch that detects because of hand causes, can not produce the problem that occurs misoperation because of temperature drift.
The detection action of angular-rate sensor 12 is that the action that display part 6 limits are moved display device 1 is being seen with eyes in the user limit, is long wavelength's low frequency.The action that display device 1 is moved will influence each other with the low frequency based on temperature drift.
The output of the angular-rate sensor 12 of the pre-stored display device 1 that remains static in a certain temperature.Then, detection is such as the output of the angular-rate sensor 12 of the display device 1 that remains static in another temperature.The poor of the reference value that changed because of temperature drift extracted in the output of more detected output and pre-stored angular-rate sensor 12 out.The output of angular-rate sensor 12 had overlapped the output of movement-based and based on the output of temperature drift when device was moved.The difference of the reference value of extracting out is equivalent to the output based on temperature drift.Therefore, remove the poor of the reference value of extracting out by the output of angular-rate sensor 12 when display device 1 is moved, just can only obtain the output of movement-based.The angular velocity of supposing this drift part is Δ ω k, and amended rolling amount then is formula 3.
Rolling amount after the compensation L = Σ i = 0 t { ωi - Δωk } Formula 3
The angular velocity of 12 pairs of α direction rotations of angular-rate sensor is surveyed, and exports as voltage.Output represents with the variation that starts from reference voltage.For example, arm length be the user of 45cm when 0.2 second chien shih display device, 1 rotation, 5 degree rotation angle, the displacement voltage of angular-rate sensor 12 is about 10mV.And the reference voltage of angular-rate sensor 12 is about 1.5V.The value of the angular velocity of output is removed high fdrequency component by not shown such as low-pass filter.Remove the output of high fdrequency component, carried out time integral by CPU15 with numerical integrating, calculated the displacement component of display device 1.
And, angular-rate sensor 12 is owing to be the angular velocity of only surveying a sense of rotation, so shown in Fig. 3 B, stride in the situation of two above sense of rotation such as α direction and the action of β direction 2 directions in detection, be necessary that corresponding turning axle separately arranges angular-rate sensor 12.In this case, angular-rate sensor 12 outputs are applied to angular velocity α durection component and the β durection component of display device 1.Output rusults carries out time integral by CPU15 with numerical integrating by low-pass filter 29, calculates each displacement component of display device 1.
Testing result such as Fig. 4 A based on angular-rate sensor 12.The longitudinal axis of curve shown in Fig. 4 A is the output voltage (V) of angular-rate sensor 12, and transverse axis is time (second).The component that includes component that the movement of the display device that detects because of angular-rate sensor 12 produces in the waveform of this Output rusults, produces because of the vibrations of touch of hand etc., the component that produces because of the temperature drift of angular-rate sensor 12.Fig. 4 B represents that this result has been removed the situation of the high frequency of hand touch component by low-pass filter 29.The component that comprises component that the movement of the display device that detects because of angular-rate sensor 12 produces in this waveform and produce because of the temperature drift of angular-rate sensor 12.At this moment display device 1 is corresponding with the output voltage values of angular-rate sensor 12, makes picture roll.Because output voltage is low frequency, so there is no need the variation of the trickle voltage of hand touch of Fig. 4 A etc., its detection namely reaches high frequency.If process this trickle variation in the same old way, trickle vibrations also can occur and become to be very difficult to watch in the demonstration of image when then rolling.Therefore, remove useless high frequency with low-pass filter 29.
Acceleration transducer 13 is when the user moves this display device 1 aloft with hand holding state, the element of surveying 2 direction of principal axis or 3 axial acceleration and exporting as voltage.
Fig. 5 represents for example the situation of acceleration transducer as the sensor use that detects 3 direction of principal axis acceleration.Longitudinal direction component, transverse direction component and fore-and-aft direction component that detection is applied to the acceleration of display device 1 carry out the time integral computing by each component, calculate speed component, displacement component.
And display device 1 is if stationary state, then to display device 1 without the acceleration effect, the output voltage of acceleration transducer 13 becomes the voltage when not applying acceleration.The namely displacement of the unit interval output voltage of acceleration transducer 13 is 0.Thus, become the voltage (displacement of unit interval output voltage is 0) when not applying acceleration by confirming output from acceleration transducer 13, also can survey the stationary state of display device 1.Thus, do not need the sensor that detects stationary state is set in addition, can avoid the complicated of disposal system and the processing of realization high-level efficiency.
The result of calculation of angular-rate sensor 12 and acceleration transducer 13 is used to the compensation of temperature drift described later and the rolling of image.
As shown in Figure 6, display part 6 is made of inner lid 6a, frame 6b, table cover 6c, liquid-crystal apparatus 6d, angular-rate sensor 12 and acceleration transducer 13.Angular-rate sensor 12 is provided with 3, is respectively to survey angular-rate sensor 12a, the angular-rate sensor 12b that the detection Y-direction moves, the angular-rate sensor 12c that detection Z direction moves that directions X moves.Angular-rate sensor 12a and 12b paste the inboard of paying at inner lid 6a.Angular-rate sensor 12c pastes the outside of paying at frame 6b.Angular-rate sensor 12 is rectangular parallelepipeds, the long 1cm of length direction.Because the length direction of angular-rate sensor 12c is parallel with the thickness direction of display part 6, so if be arranged on the inboard of display part 6 then obstruction can become display part 6 slimming own the time.Therefore, angular-rate sensor 12c is arranged on the outside of frame 6b.
An acceleration transducer 13 is set.A movement that enough detects X-direction, Y direction, Z-direction.Acceleration transducer 13 it is desirable to approach setting with angular-rate sensor 12a and angular-rate sensor 12b, certainly is separated with distance and arranges also passable.Angular-rate sensor 12 is connected with acceleration transducer and is connected with CPU15 through low-pass filter 29, A/D converter 27.
(treatment process)
Below, according to Fig. 7 and Fig. 8, the processing of picture rolling is described.
Fig. 7 represents to move to from display device 1 treatment process of the CPU15 of picture rolling.Fig. 8 represent the longitudinal axis be voltage (V), transverse axis be temperature (℃) time the temperature drift of angular-rate sensor 12.
As shown in Figure 7, CPU15 confirms at first whether the user supresses reset button 10 (step 701).If reset button 10 is pressed, then saves the operation of step 702 and step 703 and enter the operation of step 704.If reset button 10 is not pressed, then read the output voltage (step 702) of acceleration transducer 13.Then, in order to differentiate whether stationary state of display device 1, by acceleration transducer 13 sense acceleration.If the output of acceleration transducer 13 is 0 then enters next step, if output is not 0 then the processing (step 703) of repeating step 701 and step 702.
When the displacement of supressing the output voltage of reset button or acceleration transducer 13 as the user was 0, CPU15 read the output voltage (step 704) of angular-rate sensor 12.Then, read out in the flash memory 17 output voltage (step 705) of angular-rate sensor 12 storage, that under certain temperature, remain static, the value from the output voltage of the angular-rate sensor 12 that reads in step 704 is subtracted value after the value of the output voltage that is taken at the angular-rate sensor 12 that step 705 reads as the side-play amount extraction (step 706) based on temperature drift.
The value (step 707) of exporting from angular-rate sensor 12 when next, reading such as user's mobile display device 1.Deduct the side-play amount of extracting out in step 706 from this output valve, then removed the displacement (step 708) that calculates movement-based based on the change in voltage of temperature drift.Provide the indication (step 709) of rolling image according to this value.
Process like this action problem of having eliminated based on temperature drift.
About above-mentioned treatment process, carry out schematic illustration as an example of the movement of a direction example.
Angular-rate sensor 12 is when the stationary state temperature variation, and output is such as the curve β of Fig. 8.Curve α represents that angular-rate sensor 12 moves the output valve when a certain amount of.To make curve β carry out parallel in the voltage axis positive dirction.Output valve wherein such as 20 ℃ the time is made as θ and stores flash memory 17 etc. into.
Such as take 40 ℃ the time as example.In the time of 40 ℃, the output of the angular-rate sensor 12 of stationary state is β 1.In this calculating of carrying out step 706, read out in the value θ of storage in the flash memory 17, get the poor of β 1 and θ, extract the side-play amount that causes because of the said temperature drift out.If side-play amount at this moment is Δ, following formula is arranged then.
Δ=θ-β1
Further in the time of 40 ℃, the user is the output valve that display device 1 moves when a certain amount of α 1.Carry out the calculating of step 707 at this, α 1 adds that Δ calculates compensation output.If compensation at this moment is output as ω, following formula is then arranged,
ω=α1+Δ
=α1+(θ-β1)
=α1-β1+θ
Compensation output ω is temperature independent and be certain.If the θ value from ω deducts storage flash memory 17 then obtains (α 1-β 1).This is to move the displacement that produces because of reality.Therefore, get final product based on the value of (the α 1-β 1) image that rolls.
In a word, in fact as long as the curve β 1 of storage display device 1 stationary state, in that the user is actual when utilizing this display device 1, by getting the poor of the output voltage (output voltage of curve α 1 certain temperature) that makes display device 1 move certain temperature when a certain amount of and the output voltage of curve β 1 under its temperature, just can detect the displacement that only causes because of moving of display device 1.Therefore, store curve α 1 as default value in the time of can dispatching from the factory at the finished product of display device 1.
(making use-case)
Next, the action when using this display device 1 to buy content describes.
Fig. 9 is the process flow diagram of its action of expression.
In a single day display device 1 drops into power supply, then shows initial picture (step 901) at display part 6.Figure 10 is the figure of this initial picture one example of expression.In the picture of display part shown in Figure 10 6, such as " menu ", " restaurant ", " shop ", " cinema ", " eating house ", " map ", " picture ", " character input " etc. are arranged, show at this picture but also have in its lower section other project, by display device 1 is moved down, can and see following project picture rolling downwards.And, selectable project highlighted (symbol 37 among Figure 10) on present picture, press OK button 7a after, 37 of highlighted projects are selected.This highlighting such as being fixed on the picture as mentioned above by making picture rolling come mobile project, can select to want the project 37 that highlights.
At this, if display device 1 is moved up and down (step 1102), then this display device 1 moves the corresponding picture of display part 6 that makes such as scroll-up/down (step 1103) with this.Highlight desirable project such as " picture " by the user, press (step 904) behind the OK button 7a, then show the selection picture (step 905) of " picture " at display part 6.
Here too, if display device 1 by move up and down (step 906), then this display device 1 moves the corresponding picture that makes display part 6 such as roll up and down (step 907) with this.By behind 1 image of user selection (step 908), as shown in figure 11, display device 1 shows amount of money hint images 38 (steps 909) at display part 6 from each available content images A1, A2 of being divided into 4 images, B1, B2.On this picture 38, such as the amount of money display part 39 that the displaying contents amount of money is arranged, buy ACK button 40, a plurality of content is bought button 41.After pressing a plurality of contents and buying button 41, again return initial picture and can append again the content of buying.
In addition, about above-mentioned selection, in 4 image A 1, A2, B1, B2, make first that the image of maximum area highlights in display frame, select suitable outstanding picture by rolling, get final product with OK button 7a chosen content.
The prompting of the corresponding content amount of money, behind user in selecting content, then selecteed content is such as being provided to display device 1 (step 910) through the Internet from server.
Display device 1 is such as shown in Figure 12, when content 44 is shown to display part 6 (step 911) and store storage medium (step 912) into.
The user is by making display device 1 suitably mobile, can roll the image 45 of seeing in the content 44 of display part 6 demonstrations.
When Figure 13 represents to have selected " map " the project from initial picture shown in Figure 10, image one example that shows at display part 6.If from this state mobile display device 1 (step 906), with picture such as roll up and down (step 907), select on the map decide image (step 908), then can be shown to display part 6 to the more detailed map such as its zone as selected content, and store storage medium 8 into.
In above action, although can not cause display device 1 is remained static, but still occur the problem of the misoperation of rolling because of the temperature drift image of angular-rate sensor 12.
And the user also can press the temperature drift that reset button 10 is come offset angle speed pickup 12.Thus, misoperation will be prevented from.
And, by the amount of movement with the angular-rate sensor pick-up unit, can not be subjected to the impact of acceleration of gravity to come the amount of movement of pick-up unit.
The present invention is not limited to above embodiment.
For example, in the above-described embodiment, illustrated that content is the situation of image, yet content is that music etc. is also passable.
And, even make in the situation that display device 1 moves the user, do not want to allow the picture roll that shows at display part 6, also can arrange and not allow the thing such as not shown stop button and so on of picture roll.
In the present embodiment, be illustrated as an example of display device example, but further, can be applied to the present invention on all devices that has used angular-rate sensor.
Utilizability on the industry
As described above, according to the present invention, by the amount of movement with the angular-rate sensor pick-up unit, stationary state with the acceleration transducer pick-up unit, can not be subjected to the impact of acceleration of gravity and detect the amount of movement of device, can also prevent the misoperation that the temperature drift because of angular-rate sensor causes simultaneously.

Claims (20)

1. Electronic apparatus is characterized in that possessing:
Angular-rate sensor is under static state exported respectively the 1st spacing wave or output 1st movable signal corresponding with sense of rotation angular velocity under mobile status;
Storage unit, the data of the 2nd signal of the described angular-rate sensor output that remains static under pre-stored certain temperature;
Acceleration transducer is for detection of stationary state; And
Computing unit, when detecting described stationary state, the differential data between the 1st spacing wave that uses the output of described angular-rate sensor and the 2nd pre-stored signal of described storage unit calculates for the data that compensate described the 1st movable signal.
2. the Electronic apparatus of putting down in writing according to claim 1 is characterized in that,
Also possess:
Based on the data that are used for compensating described the 1st movable signal that calculated by described computing unit, compensate the compensating unit of described the 1st movable signal.
3. the Electronic apparatus of putting down in writing according to claim 2 is characterized in that,
Also possess:
Based on by the 1st movable signal after the described compensating unit compensation, calculate and move the displacement computing unit of the displacement of generation by the space.
4. the Electronic apparatus of putting down in writing according to claim 3 is characterized in that,
Also possess:
Based on the displacement that is calculated by described displacement computing unit, will send to for the information of rolling image the picture roll information transmitting unit that shows image one side.
5. the Electronic apparatus of putting down in writing according to claim 4 is characterized in that,
Also possess:
Based on the information of being sent by described picture roll information transmitting unit, the unit that picture roll is shown.
6. the Electronic apparatus of putting down in writing according to claim 3 is characterized in that,
Also possess:
Based on the displacement that is calculated by described displacement computing unit, will send to for the information of application drawing picture the image manipulation information transmitting unit that shows image one side.
7. the Electronic apparatus of putting down in writing according to claim 6 is characterized in that,
Also possess:
Based on the information of being sent by described image manipulation information transmitting unit, the unit that image is operated and shows.
8. Electronic apparatus is characterized in that possessing:
Angular-rate sensor is exported respectively the 1st spacing wave or output 1st movable signal corresponding with sense of rotation angular velocity under mobile status when being reset;
Storage unit, the data of the 2nd signal of the described angular-rate sensor output that remains static under pre-stored certain temperature;
Button is used for described angular-rate sensor is resetted; And
Computing unit, when pressing described button, the differential data between the 1st spacing wave that uses the output of described angular-rate sensor and the 2nd pre-stored signal of described storage unit calculates for the data that compensate described the 1st movable signal.
9. the Electronic apparatus of putting down in writing according to claim 8 is characterized in that,
Also possess:
Based on the data that are used for compensating described the 1st movable signal that calculated by described computing unit, compensate the compensating unit of described the 1st movable signal.
10. the Electronic apparatus of putting down in writing according to claim 9 is characterized in that,
Also possess:
Based on by the 1st movable signal after the described compensating unit compensation, calculate and move the displacement computing unit of the displacement of generation by the space.
11. the Electronic apparatus of record is characterized in that according to claim 10,
Also possess:
Based on the displacement that is calculated by described displacement computing unit, will send to for the information of rolling image the picture roll information transmitting unit that shows image one side.
12. the Electronic apparatus of record is characterized in that according to claim 11,
Also possess:
Based on the information of being sent by described picture roll information transmitting unit, the unit that picture roll is shown.
13. the Electronic apparatus of record is characterized in that according to claim 10,
Also possess:
Based on the displacement that is calculated by described displacement computing unit, will send to for the information of application drawing picture the image manipulation information transmitting unit that shows image one side.
14. the Electronic apparatus of record is characterized in that according to claim 13,
Also possess:
Based on the information of being sent by described image manipulation information transmitting unit, the unit that image is operated and shows.
15. a signal compensation apparatus is characterized in that possessing:
Angular-rate sensor is under static state exported respectively the 1st spacing wave or output 1st movable signal corresponding with sense of rotation angular velocity under mobile status;
Storage unit, the data of the 2nd signal of the described angular-rate sensor output that remains static under pre-stored certain temperature;
Acceleration transducer is for detection of stationary state; And
Computing unit, when detecting described stationary state, the differential data between the 1st spacing wave that uses the output of described angular-rate sensor and the 2nd pre-stored signal of described storage unit calculates for the data that compensate described the 1st movable signal.
16. the signal compensation apparatus of record is characterized in that according to claim 15,
Also possess:
Based on the data that are used for compensating described the 1st movable signal that calculated by described computing unit, compensate the compensating unit of described the 1st movable signal.
17. a signal compensation apparatus is characterized in that possessing:
Angular-rate sensor is exported respectively the 1st spacing wave or output 1st movable signal corresponding with sense of rotation angular velocity under mobile status when being reset;
Storage unit, the data of the 2nd signal of the described angular-rate sensor output that remains static under pre-stored certain temperature;
Button is used for described angular-rate sensor is resetted; And
Computing unit, when pressing described button, the differential data between the 1st spacing wave that uses the output of described angular-rate sensor and the 2nd pre-stored signal of described storage unit calculates for the data that compensate described the 1st movable signal.
18. the signal compensation apparatus of record is characterized in that according to claim 17,
Also possess:
Based on the data that are used for compensating described the 1st movable signal that calculated by described computing unit, compensate the compensating unit of described the 1st movable signal.
19. a method for compensating signal is characterized in that, comprises the steps:
Read the step of the 1st spacing wave of the angular-rate sensor output under the stationary state;
Make the data in advance of the 2nd signal of the described angular-rate sensor output that remains static under certain temperature be stored in the step of storage unit;
Detected the step of stationary state by acceleration transducer; And
When detecting described stationary state, use the differential data between the 2nd pre-stored signal of the 1st spacing wave of described angular-rate sensor output and described storage unit, calculate the step of the data that are used for compensation the 1st movable signal, described the 1st movable signal is to be exported by the described angular-rate sensor under the mobile status, and corresponding with sense of rotation angular velocity.
20. the method for compensating signal of record is characterized in that according to claim 19,
Also possess:
Based on the data that are used for compensating described the 1st movable signal that the calculation procedure by described offset data calculates, compensate the step of described the 1st movable signal.
CN2008100924057A 2002-08-28 2003-08-22 Electronic apparatus, signal compensation device, and signal compensation method Expired - Fee Related CN101251382B (en)

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CN101251382A (en) 2008-08-27
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CN101256076A (en) 2008-09-03
CN101256075A (en) 2008-09-03

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