WO2007086581A1 - 携帯電子機器とその方位表示方法 - Google Patents
携帯電子機器とその方位表示方法 Download PDFInfo
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- WO2007086581A1 WO2007086581A1 PCT/JP2007/051500 JP2007051500W WO2007086581A1 WO 2007086581 A1 WO2007086581 A1 WO 2007086581A1 JP 2007051500 W JP2007051500 W JP 2007051500W WO 2007086581 A1 WO2007086581 A1 WO 2007086581A1
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- WIPO (PCT)
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- unit
- azimuth
- display
- information
- electronic device
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/02—Magnetic compasses
- G01C17/28—Electromagnetic compasses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
Definitions
- the present invention relates to a portable electronic device equipped with a geomagnetic sensor and capable of displaying an orientation calculated based on a detection result thereof, and an orientation display method thereof.
- Patent Document 1 Japanese Patent Laid-Open No. 2003-289366
- Patent Document 2 Japanese Patent Laid-Open No. 2005-110031
- Patent Document 3 Japanese Patent Laid-Open No. 2005-107324
- Patent Document 4 Japanese Patent Laid-Open No. 2005-107323
- Patent Document 5 Japanese Unexamined Patent Publication No. 2005-300896
- Patent Document 6 Japanese Unexamined Patent Publication No. 2005-291936
- Patent Document 7 Japanese Unexamined Patent Application Publication No. 2005-291935
- Patent Document 8 JP-A-2005-291934
- Patent Document 9 JP-A-2005-291933
- Patent Document 10 Japanese Unexamined Patent Publication No. 2005-291932
- Patent Document 11 Japanese Unexamined Patent Application Publication No. 2005-291931
- a portable electronic device and an orientation display method capable of effectively preventing a user from erroneously recognizing that the orientation is correct when the reliability of orientation during display is reduced. It is hoped that.
- a portable electronic device calculates a direction based on a display unit that displays information, a geomagnetic sensor that detects geomagnetism, and a geomagnetism detected by the geomagnetic sensor, and calculates the calculation.
- a control unit configured to display the orientation information on the display unit, and the control unit is configured to display a magnetic field under a state in which the orientation information is displayed on the display unit.
- the portable electronic device includes a detection unit that detects connection with the external device, and the control unit is configured to detect the connection based on a detection result of the detection unit. It is determined whether or not the external device is connected.
- control unit repeats the calculation of the azimuth, updates information on the azimuth displayed on the display unit according to the calculated azimuth, and the detection unit detects the connection. Then, the update of the direction information is stopped.
- the control unit when the control unit stops updating the direction information displayed on the display unit, the control unit displays the direction information based on the geomagnetism detected by the geomagnetic sensor before the detection unit detects the connection. You may display on a display part.
- the control unit may display information on a predetermined direction instead of the calculated direction on the display unit. Good.
- the control unit is configured to periodically acquire a detection result of the geomagnetic sensor, calculate a direction based on the acquired detection result of the geomagnetism, and output the calculation result as direction data.
- a azimuth calculation unit, and a display control unit configured to periodically acquire the azimuth data from the azimuth calculation unit and control display of azimuth information on the display unit according to the acquired azimuth data May be included.
- the azimuth calculation unit may output certain azimuth data to the display control unit when the detection unit detects the connection.
- the azimuth calculation unit may output azimuth data based on a detection result of the geomagnetic sensor acquired before the detection unit detects the connection as the fixed azimuth data.
- the azimuth calculating unit may output azimuth data indicating a predetermined azimuth as the fixed azimuth data.
- a portable electronic device calculates a direction based on a display unit that displays information, a geomagnetic sensor that detects geomagnetism, and geomagnetism detected by the geomagnetic sensor, and calculates the calculation.
- a control unit configured to display information on the azimuth direction displayed on the display unit, and an audio signal supply unit configured to supply an audio signal to a speaker provided in an external device, and the control unit includes the display unit When the external device is connected and the audio signal supply unit starts outputting an audio signal while the direction information is displayed on the display unit, the display unit indicates that the direction information is inaccurate. Display of azimuth information that may be displayed may be stopped.
- a portable electronic device calculates a azimuth based on a display unit that displays information, a geomagnetic sensor that detects geomagnetism, and the geomagnetism detected by the geomagnetic sensor, and performs the calculation.
- a control unit configured to display the orientation information displayed on the display unit, and a notch, and the control unit displays the orientation information on the display unit.
- a second aspect of the present invention relates to a direction display method in which a portable electronic device including a display unit and a geomagnetic sensor displays direction information on the display unit.
- a azimuth is calculated based on the geomagnetism detected by the geomagnetic sensor, and information on the calculated azimuth is displayed on the display unit, and a magnetic field is generated in the first step.
- a second step of detecting a connection of a predetermined external device, and when the connection is detected by the second step, the fact that the orientation information is inaccurate is displayed on the display unit, or And a third step of stopping the display of the location information.
- a mobile phone capable of causing a user to recognize the orientation being displayed as accurately as possible.
- An electronic device and an orientation display method thereof can be provided.
- FIG. 1 is a diagram showing a configuration example of a mobile electronic device such as a mobile phone according to an embodiment of the present invention.
- FIG. 2 is a diagram showing an example of a charger with a speaker for charging a battery unit.
- FIG. 3 is a diagram showing a display example of a direction at the time of standby.
- FIG. 4 is a diagram for explaining operations related to calculation and display of a bearing.
- FIG. 5 is a flowchart showing an example of operations related to calculation and display of an azimuth.
- FIG. 1 is a diagram showing a configuration example of a mobile electronic device 100 such as a mobile phone according to an embodiment of the present invention.
- a portable electronic device 100 shown in FIG. 1 includes a wireless communication unit 101, a GPS signal receiving unit 102, a key input unit 103, an audio processing unit 104, a speaker 105, a microphone 106, a display unit 107, It has a geomagnetic sensor 108, a storage unit 109, a charger detection unit 110, a battery unit 111, and a control unit 150.
- Radio communication section 101 performs radio communication with a base station (not shown) connected to a communication network.
- the communication unit 101 performs predetermined modulation processing on the transmission data supplied from the control unit 150 to convert it into a radio signal, and also transmits the antenna force.
- the radio signal from the base station received by the antenna is subjected to predetermined demodulation processing to be converted into reception data, and is output to the control unit 150.
- the GPS signal receiving unit 102 receives GPS signals transmitted from three or more GPS satellites orbiting a known orbit, and performs signal processing such as amplification, noise removal, and modulation on the GPS signals. The information necessary for calculating the geographical position of the mobile phone 100 is acquired.
- the key input unit 103 includes keys to which various functions such as a power key, a call key, a numeric key, a character key, a direction key, and an enter key are assigned. When operated, a signal corresponding to the operation content is generated and input to the control unit 150 as a user instruction.
- the audio processing unit 104 processes an audio signal output from the speaker 105 and an audio signal input from the microphone 106. That is, the audio signal input from the microphone 106 is subjected to signal processing such as amplification, analog-digital conversion, encoding, etc., converted into digital audio data, and output to the control unit 150. In addition, the audio data supplied from the control unit 150 is subjected to signal processing such as decoding, digital-analog conversion, and amplification, and is converted into an analog audio signal and output to the speaker 105.
- signal processing such as amplification, analog-digital conversion, encoding, etc.
- the audio processing unit 104 supplies an audio signal via a terminal T1 to a charger 200 (see FIG. 2) on which the speaker 201 is mounted.
- the display unit 107 is configured by using a display device such as a liquid crystal display panel or an organic EL panel, for example, and displays an image corresponding to the video signal supplied from the control unit 150. For example, it displays various information such as the telephone number of the callee at the time of outgoing call, the telephone number of the callee at the time of incoming call, the contents of received mail and outgoing mail, date, time, remaining battery level, and standby screen.
- a display device such as a liquid crystal display panel or an organic EL panel, for example
- the display unit 107 displays azimuth information based on the detection result of the geomagnetic sensor 108 when performing navigation using the GPS function or displaying a standby screen (see FIG. 3).
- the geomagnetic sensor 108 detects the geomagnetism used for calculating the azimuth.
- the geomagnetic sensor 108 detects the geomagnetism in each axial direction with reference to a predetermined coordinate system (two axes or three axes) set on the circuit board in the casing of the portable electronic device 100.
- a predetermined coordinate system two axes or three axes
- various methods such as a method using coil excitation, a method using the Hall effect, and a method using a magnetoresistive element can be used.
- Storage unit 109 stores various data used for processing in control unit 150.
- the computer program in the control unit 150 the telephone number of the communication partner Address book for managing personal information such as child mail addresses, audio files for playing ringtones and alarm sounds, image files for standby screen, various setting data, temporary used in the process of the program Retains important data.
- the storage unit 109 is, for example, a non-volatile storage device (non-volatile semiconductor memory, hard disk device, optical disk device, etc.) or a randomly accessible storage device (eg SR
- the battery unit 111 includes a secondary battery (battery) such as a lithium ion battery or a nickel hydride battery, for example, and supplies a power supply voltage generated in the battery to each unit of the device.
- a secondary battery battery such as a lithium ion battery or a nickel hydride battery, for example, and supplies a power supply voltage generated in the battery to each unit of the device.
- the portable electronic device 100 reads out music information stored in the storage unit 109 under the control of the control unit 150, performs signal processing in the audio processing unit 104, and outputs the sound through the speaker 105, thereby serving as a music player. It also has a function. And the functions of the music player installed have been enhanced year by year, and higher-quality audio playback has been demanded.
- the portable electronic device 100 has a limited housing size, There is a problem that the low frequency range cannot be reproduced satisfactorily because the speaking power of the aperture cannot be installed.
- a battery charger with a speaker has been developed. Thereby, while charging the battery of the portable electronic device 100 by the charger, high-quality audio reproduction can be performed by the large-diameter speaker attached to the charger.
- FIG. 2 is a diagram showing an example of a speaker-equipped charger 200 that charges the battery 111, and shows a state in which the portable electronic device 100 is attached to the charger 200 (Fig. 2 (A)). Each state (Fig. 2 (B)) is shown.
- the secondary battery of the battery unit 111 is charged in a state where the portable electronic device 100 is attached to the charger 200, for example, as shown in FIG. That is, a charging terminal (not shown) provided on the portable electronic device 100 and an external terminal (not shown) provided on the charger 200 are brought into contact with each other, and the charging current from the charger 200 to the battery 111 via these terminals. Flows.
- the charger detector 110 detects whether the portable electronic device 100 is attached to the charger 200. For example, the presence / absence of power supply from the charger 200 to the battery unit 111, the presence / absence of electrical connection between the portable electronic device 100 and the battery unit 111, the presence / absence of physical contact, and the like are detected.
- the charger detection unit 110 detects a current supplied from the charger 200 to the battery unit 111, and the portable electronic device 100 is attached to the charger 200 when the current is a predetermined value or more. ! You can detect when you hit! / ⁇ .
- a contact detection sensor is provided at the part where the two come into contact with each other, and the portable electronic device 100 is selected according to the output of the sensor. It may be detected whether or not the power is attached to the charger 200. Further, for example, a switch that is turned on / off by contact may be provided in the charger 200, and the charger detection unit 110 may detect the presence / absence of mounting according to the on / off state of the switch.
- the portable electronic device 100 is provided with two electrodes for contact detection, and the short-circuiting electrode is charged so that the two electrodes are short-circuited when the charger 200 is mounted.
- 200 may be provided.
- the charger detection unit 110 can detect the mounting state with the charger by detecting whether or not the two electrodes provided in the portable electronic device 100 are short-circuited.
- the control unit 150 controls the overall operation of the mobile electronic device 100 in an integrated manner. That is, various processes of the mobile electronic device 100 (such as voice communication performed via a circuit switching network, creation and transmission / reception of e-mail, browsing of an Internet website, navigation using a map) are performed by the key input unit 103.
- the operation of each unit described above transmission / reception of signals in the wireless communication unit 101, reception of GPS signals in the GPS signal reception unit 102, input of audio in the audio processing unit 104) Output, acquisition of geomagnetic data from the geomagnetic sensor 108, display of images on the display unit 107, etc.).
- control unit 150 includes a program (operating system stored in the storage unit 109).
- a computer that executes processing based on the program, application, etc., and executes the above-described processing according to the procedure instructed in this program. That is, the program power such as the operating system and application program stored in the storage unit 109 also reads the instruction code in order and executes the processing.
- the control unit 150 grasps the geographical position of the current location based on the GPS signal, and displays this on the display unit 107 using a map. To do.
- the control unit 150 receives the GPS signal by the GPS signal receiving unit 102 and transmits the information to the server device on the communication network by the wireless communication unit 101.
- the server device calculates the geographical position (for example, latitude and longitude) of the portable electronic device 100 based on the information of the GPS signal, and obtains information on the position of the calculation result and map information around the position.
- the control unit 150 displays a map image representing the geographical position of the current location on the display unit 107 based on the information sent by the server device.
- the control unit 150 displays the direction information on the display unit 107 when the navigation processing as described above is performed or when a normal standby screen is displayed.
- the geomagnetic data detected by the geomagnetic sensor 108 is acquired, the direction is calculated based on this data, and this is displayed on the display unit 107 as direction information.
- the control unit 150 calculates the azimuth at a constant cycle, and periodically updates the information on the direction displayed on the display unit 107 according to the calculation result.
- the direction information is displayed on the screen of the display unit 107 as an icon shaped like a compass, for example, as shown in FIG.
- the arrow indicated by the compass icon P1 represents a specific direction (for example, north).
- the direction of this arrow also changes according to.
- the control unit 150 displays such orientation information on the display unit 107
- the charger detection unit indicates that the portable electronic device 100 is attached to the charger 200 with a speaker (FIG. 2). If 110 is detected, the display unit 107 displays that the current orientation information is inaccurate. For example, when the charger 200 is detected by the charger detection unit 110, the control unit 150 stops calculating the azimuth that has been repeated cyclically until then, and also stops updating the azimuth information displayed on the display unit 107. To do.
- control unit 150 displays, on the display unit 107, information on the orientation based on the geomagnetism detected by the geomagnetic sensor 108 before the charger 200 is detected by the charger detection unit 110, for example.
- information on a specific direction for example, information indicating that the upper direction of the screen is the “north” direction
- 107 may be displayed.
- the control unit 150 includes an azimuth calculation unit 151 and a display control unit 152 as components related to azimuth calculation and display.
- the direction calculation unit 151 periodically acquires the detection result of the geomagnetic sensor 108, and calculates the direction based on the detection result. Then, the calculation result is output to the display control unit 152 as direction data. However, when the charger 200 is detected by the charger detection unit 110, certain azimuth data unrelated to the geomagnetic data is output to the display control unit 152. Examples of the constant azimuth data include azimuth data based on the detection result of the geomagnetic sensor 108 before the charger 200 is detected by the charger detection unit 110, or azimuth data indicating a specific azimuth unrelated to the geomagnetic data. Etc. are output.
- the display control unit 152 periodically acquires azimuth data from the azimuth calculation unit 151 and performs control so that azimuth information corresponding to the azimuth data is displayed on the display unit 107.
- FIG. 4 is a diagram for explaining operations related to calculation and display of a bearing.
- FIG. 4 (A) shows the operation when the portable electronic device 100 is removed from the charger 200.
- the azimuth calculation unit 151 performs a geomagnetic sensor at a predetermined cycle (for example, about several hundred msec). Request data from server 108. In response to this request, the geomagnetic sensor 108 outputs the detection result of geomagnetism to the azimuth calculation unit 151 as geomagnetic data. The azimuth calculation unit 151 periodically calculates the azimuth based on the geomagnetic data acquired from the geomagnetic sensor 108. Further, the display control unit 152 requests data from the azimuth calculation unit 151 with a longer cycle (for example, about 1 second) than the azimuth calculation unit 151.
- a predetermined cycle for example, about several hundred msec.
- the direction calculation unit 151 outputs the calculation result of the direction to the display control unit 152 as direction data.
- the display control unit 152 periodically updates the direction information displayed on the display unit 107 based on the direction data acquired from the direction calculation unit 151.
- FIG. 4 (B) shows the operation when the portable electronic device 100 is attached to the charger 200.
- the orientation calculation unit 151 displays the display control unit.
- constant pseudo azimuth data (pseudo data) is output to the display control unit 152 instead of the azimuth data calculated based on the geomagnetic data.
- the display control unit 152 acquires the azimuth data from the azimuth calculation unit 151 at a constant cycle, and the azimuth data is constant pseudo data that is unrelated to the geomagnetic data. Therefore, the direction information displayed on the display unit 152 is constant, and the information is not updated.
- the azimuth calculation unit 151 outputs, for example, direction data indicating a specific azimuth to the display control unit 152 as the fixed azimuth data.
- the display unit 107 displays the direction information so that a certain direction of the screen is directed to a specific direction (for example, the upper direction of the screen is directed to “north”). .
- the azimuth calculation unit 152 generates azimuth data based on the geomagnetic data acquired from the geomagnetic sensor 108 before the charger detection unit 110 detects the charger 200 (for example, the cycle immediately before detection). Output to the display control unit 152 as direction data. As a result, the orientation information immediately before the portable electronic device 100 is attached to the charger 200 is continuously displayed on the display unit 107 after the attachment.
- the direction calculation unit 151 acquires the value of the geomagnetic sensor 108 again when the next data request cycle arrives, and the display control unit Output azimuth data to 152. That is, the processing of Fig. 4 (A) Resume.
- FIG. 5 is a flowchart showing an example of operations related to the calculation and display of the azimuth.
- the azimuth calculation unit 151 requests geomagnetic data from the geomagnetic sensor 108 at a predetermined cycle (steps ST301, ST304, ST307, ST310, ST313, ST316). In response to this request, the geomagnetic sensor 108 periodically outputs geomagnetic data to the bearing calculation unit 151 (steps ST302, ST305, ST308, ST311, ST314, ST317). The azimuth calculation unit 151 periodically calculates the azimuth based on the geomagnetic data acquired from the geomagnetic sensor 108 (steps ST303, ST306, ST309, ST312, ST315, ST318).
- Display control unit 152 requests azimuth data from azimuth calculation unit 151 at a cycle longer than the azimuth calculation cycle (steps ST401 and ST404).
- step ST401 When display control unit 152 requests direction data in step ST401, charger detection unit 110 has not detected charger 200. Therefore, the azimuth calculation unit 151 outputs the azimuth data calculated in step ST 303 to the display control unit 152 (step ST402), and the display control unit 152 displays the azimuth information displayed on the display unit 107 according to the azimuth data. Is updated (step ST403).
- the orientation information displayed on the display unit 107 is information representing the actual orientation based on the detection result of the geomagnetic sensor 108.
- step ST402 when display control unit 152 requests direction data in step ST402, charger detection unit 110 detects charger 200 (step ST501). Therefore, the azimuth calculation unit 151 outputs certain pseudo data unrelated to the geomagnetic data to the display control unit 152 (step ST405), and the display control unit 152 determines the direction displayed on the display unit 107 according to the pseudo data. Information is updated (step ST406). Thereafter, while the charger detection unit 110 detects the charger 200, the display unit 107 displays information of a certain direction according to the pseudo data.
- This pseudo data may be azimuth data indicating a specific azimuth as described above, or may be the geomagnetic data acquired from the geomagnetic sensor 108 before the charger detector 110 detects the charger 200. Based on orientation data may be used. In the latter case, in the example of FIG. 5, the azimuth data calculated in step ST309 is output to the display control unit 152 as pseudo data in step ST405. [0049] As described above, according to the present embodiment, when the orientation information calculated based on the geomagnetism detected by the geomagnetic sensor 108 is displayed on the display unit 107, charging with the speaker 201 is performed. When the portable electronic device 100 is attached to the device 200, the update of the orientation information that has been repeated until then is stopped, and the information of a certain orientation continues to be displayed on the display unit 107.
- the control unit 150 is provided with an orientation calculation unit 151 and a display control unit 152.
- the azimuth calculation unit 151 the detection result of the geomagnetic sensor 108 is periodically acquired, the azimuth is calculated based on the detection result, and the calculation result is output as azimuth data.
- the display control unit 152 periodically acquires the direction data output from the direction calculation unit 151, and the display of the direction information on the display unit 107 is controlled according to the acquired direction data.
- the charger detection unit 110 detects that the charger 200 is attached to the charger 200
- the direction data output from the direction calculation unit 151 to the display unit 152 is fixed to certain pseudo data.
- the display unit 107 that does not cause the display control unit 152 to execute special processing is arbitrarily selected. Since the direction information can be displayed, the configuration of the control unit 150 can be simplified. In addition, since it is not necessary to change the configuration of the display control unit 152 in order to realize the above operation, the design can be simplified.
- the above-described embodiment is an example, and the present invention is not limited to the above-described embodiment.
- the force shown as an example of connection to the charger 200 is not limited to this.
- the present invention is applicable to most situations where external devices that generate magnetic fields are connected.
- the case where the portable electronic device is mounted on the speaker mounted on the charger is taken as an example, but the present invention is not limited to this.
- the present invention is also applicable to a case where a portable electronic device is attached to an external device that generates a magnetic field that causes a detection error of a geomagnetic sensor, such as an external speaker device that does not have a charging function, an external display device, or an external storage device. Is applicable.
- an interface connector connected to the control unit various external devices may be connected via the interface connector. Even in the case of a charger of the type connected by an interface connector, the control as in the present invention can be performed if the detection state of the connector can be detected by the detection unit.
- the control unit 150 determines whether the charger 200 is connected or the type of charger connected via the interface connector is connected or the type of charger connected via the interface connector. It can be determined by checking.
- control method may be changed depending on whether the charger 200 is attached or the charger is connected via the interface connector. For example, when it is attached to the charger 200, it is almost impossible to know the direction while carrying the charger 200, so the direction information may be hidden. In addition, when a charger is connected via an interface connector, for example, there may be a case where navigation is performed by connecting to an in-vehicle charger outdoors, so the direction information is fixed and displayed in the north (north (Up-display).
- the geomagnetic sensor when a charger is connected via such an interface connector, the geomagnetic sensor may be affected by the charging current, which may cause an error in azimuth accuracy.
- the display unit 107 may indicate that the reliability of the orientation may be lowered and the orientation display may be fixed, or even if the orientation reliability is low, the user input from the key input unit 103 may be fixed.
- the direction based on the detection value of the geomagnetic sensor may be displayed.
- the direction is inaccurate by stopping the update of the direction information displayed on the display unit 107.
- the force which shows that this invention is not limited to this.
- the display of the azimuth information may be stopped by a method such as deleting the image indicating the azimuth of the screen of the display unit 107. Accordingly, it is possible to reliably prevent the user from erroneously recognizing that the azimuth information is accurate even though the azimuth information is incorrect.
- the user may recognize that the displayed orientation is inaccurate by blinking the image representing the orientation or changing the form, color, brightness, size, or the like of the image. Furthermore, it is possible to make the user recognize that the displayed orientation is inaccurate by a message such as a character or a symbol.
- the portable electronic device when the portable electronic device is attached to the external device equipped with the speaker, the power for displaying on the display unit that the orientation information is inaccurate.
- the present invention is not limited to this. .
- a magnetic field that dynamically changes according to the driving current of the speaker may be more likely to be a detection error of the geomagnetic sensor than a static magnetic field generated by the permanent magnet of the speaker.
- the portable electronic device when the portable electronic device is attached to the external device and an audio signal is supplied from the audio signal processing unit (audio signal supply unit) to the speaker of the external device (that is, the external device) May be displayed on the display section indicating that the orientation information is inaccurate when the device is connected and music data playback is instructed by the music player function.
- the azimuth calculation unit 151 periodically calculates the azimuth even after the charger detection unit 110 detects the charger 200 in step ST501. It is not limited to this example. While the charger 200 is detected by the charger detection unit 110, the direction calculation unit 151 may stop the acquisition of geomagnetic data from the geomagnetic sensor 108 and the calculation of the direction. In other words, when it is detected that the device is attached to a predetermined external device that generates a magnetic field, the control unit may stop calculating the direction based on the detection result of the geomagnetic sensor. By not calculating unnecessary directions, the processing amount of the control unit can be reduced and the power consumption can be reduced.
- each component in the above-described embodiment may be realized by hardware! / You can use a computer with V or software.
- some or all of the data processing and control in the control unit 150, the wireless communication unit 101, the GPS signal receiving unit 102, the voice processing unit 104, etc. can be realized by a computer program.
- the azimuth calculation unit 151 may be configured as a device dryer of the geomagnetic sensor 108, and the display control unit 152 may be configured as an application program.
- a mobile electronic device as a mobile phone is mainly taken as an example.
- the present invention is not limited to this, and orientation display is performed using a geomagnetic sensor such as a portable computer, a game machine, or an audio player.
- the present invention can be widely applied to various devices that can be used.
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2007556045A JP4674240B2 (ja) | 2006-01-30 | 2007-01-30 | 携帯電子機器とその方位表示方法 |
EP20070707718 EP1985970B1 (en) | 2006-01-30 | 2007-01-30 | Mobile electronic device and its direction display method |
US12/162,598 US7950160B2 (en) | 2006-01-30 | 2007-01-30 | Mobile electronic apparatus and bearing display method of same |
CN2007800096515A CN101405567B (zh) | 2006-01-30 | 2007-01-30 | 移动电子装置及其方位显示方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006-021572 | 2006-01-30 | ||
JP2006021572 | 2006-01-30 |
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WO2007086581A1 true WO2007086581A1 (ja) | 2007-08-02 |
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PCT/JP2007/051500 WO2007086581A1 (ja) | 2006-01-30 | 2007-01-30 | 携帯電子機器とその方位表示方法 |
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US (1) | US7950160B2 (ja) |
EP (1) | EP1985970B1 (ja) |
JP (1) | JP4674240B2 (ja) |
KR (1) | KR20080092463A (ja) |
CN (1) | CN101405567B (ja) |
WO (1) | WO2007086581A1 (ja) |
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US8339123B2 (en) | 2007-12-31 | 2012-12-25 | Htc Corporation | Portable electronic device with electronic compass and method for calibrating compass |
JP2016167653A (ja) * | 2015-03-09 | 2016-09-15 | カシオ計算機株式会社 | 電子機器及びその制御方法 |
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JP4176040B2 (ja) * | 2004-03-31 | 2008-11-05 | 京セラ株式会社 | 携帯通信端末とその地磁気センサの誤差補正方法 |
CN101405567B (zh) * | 2006-01-30 | 2012-03-21 | 京瓷株式会社 | 移动电子装置及其方位显示方法 |
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Also Published As
Publication number | Publication date |
---|---|
US20090300928A1 (en) | 2009-12-10 |
CN101405567A (zh) | 2009-04-08 |
US7950160B2 (en) | 2011-05-31 |
EP1985970A4 (en) | 2013-01-02 |
EP1985970A1 (en) | 2008-10-29 |
CN101405567B (zh) | 2012-03-21 |
KR20080092463A (ko) | 2008-10-15 |
EP1985970B1 (en) | 2015-05-06 |
JP4674240B2 (ja) | 2011-04-20 |
JPWO2007086581A1 (ja) | 2009-06-25 |
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