WO2005122537A1 - 電子機器、および、筐体の向き検出方法 - Google Patents
電子機器、および、筐体の向き検出方法 Download PDFInfo
- Publication number
- WO2005122537A1 WO2005122537A1 PCT/JP2005/010683 JP2005010683W WO2005122537A1 WO 2005122537 A1 WO2005122537 A1 WO 2005122537A1 JP 2005010683 W JP2005010683 W JP 2005010683W WO 2005122537 A1 WO2005122537 A1 WO 2005122537A1
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- WO
- WIPO (PCT)
- Prior art keywords
- housing
- magnetic
- electronic device
- axis
- sensor
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0241—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
- G06F1/162—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position changing, e.g. reversing, the face orientation of the screen with a two degrees of freedom mechanism, e.g. for folding into tablet PC like position or orienting towards the direction opposite to the user to show to a second user
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1677—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1681—Details related solely to hinges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/021—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts using combined folding and rotation motions
Definitions
- the present invention relates to an electronic device and a method of detecting the orientation of a housing, and more particularly, to an electronic device in which two housings are connected by a biaxial hinge and a method of detecting the orientation of the housing.
- a conventional foldable mobile phone includes an operation unit 104, a control unit 105, a storage unit 113, a voice processing unit 107, a microphone 171, a speaker 172, a wireless unit 108, an antenna 181, It comprises a unit 110, a display control unit 109, a display unit 111, an interrupt controller 112, an open / close detection unit 106, and a switch 161.
- the operation unit 104, the control unit 105, the storage unit 113, the audio processing unit 107, the wireless unit 108, the imaging unit 110, the display control unit 109, the interrupt controller 112, and the open / close detection unit 106 are connected to the bus 114. ing.
- the display unit 111 is provided in the upper housing, and the operation unit 104 is provided in the lower housing.
- the upper case and the lower case are connected by a uniaxial hinge that rotates only in one direction.
- a magnet is provided in the upper housing, and a switch 161 is provided at a position facing the magnet in the lower housing.
- the switch 161 is turned on.
- the switch 161 is turned off.
- the open / close detection unit 106 issues an interrupt signal to the interrupt controller 112 when detecting that the two housings are closed. Upon receiving the interrupt signal, the interrupt controller 112 checks whether the processing from the opening / closing detection unit 106 is higher than the current interrupt processing. As a result, if the processing from the open / close detection unit 106 is the highest order, the interrupt controller 112 Further outputs an interrupt request to the control unit 105.
- control unit 105 Upon receiving the interrupt request from the interrupt controller 112, the control unit 105 accesses a register in the interrupt controller 112 and checks what the highest-order interrupt processing is. The control unit 105 performs an appropriate process according to the confirmed interrupt processing (for example, see Japanese Patent Application Laid-Open No. 2001-136251 (Document 1)).
- the “two-axis hinge” is a hinge having two movable axes, and these two axes are generally arranged orthogonally.
- the conventional foldable mobile phone 101 employing a biaxial hinge has a movable shaft "fixed" near the short side of the lower housing 103. It has a biaxial hinge 121 on which the other movable shaft rotates.
- the axis of the two-axis hinge 121 provided substantially parallel to the short side of the lower housing 103 is referred to as the horizontal axis X
- the axis of the two-axis hinge 121 provided substantially perpendicular to the short side of the lower housing 103 The description will be given as the vertical axis y.
- a display unit 111 is provided in an upper housing 102 of the mobile phone 101.
- the upper housing 102 and the lower housing 103 are folded such that the display unit 111 is opposed to the lower housing 103, the result is as shown in FIG. From this state, the upper housing 102 is opened approximately 90 degrees around the horizontal axis X, and the upper housing 102 is turned approximately 180 degrees around the vertical axis y, and the upper housing 102 is turned around the horizontal axis X from here.
- the camera is closed by approximately 90 degrees, the upper housing 102 and the lower housing 103 can be closed with the display unit 111 exposed to the outside as shown in FIG. In this state, it is possible to check the e-mail and use the shooting function on a wide screen.
- the two cases 102 and 103 are used to close the two cases 102 and 103 so that the upper case 102 is oriented when the two cases 102 and 103 are closed. Can be detected.
- the open / close state of the two housings can be detected by using a pair of the magnet and the switch 161.
- the state shown in FIG. 2 cannot be distinguished from the state shown in FIG. This is because when the switch 161 is turned ON, it is known that the two housings 102 and 103 are closed, but it is not possible to know which direction the upper housing 102 is oriented. This problem is the same when a magnet and a Hall element are used instead of the magnet and the switch 161.
- the orientation of the housing when the housing is closed can be detected by using two pairs of magnets and Hall elements.
- the number of necessary elements increases, and an increase in the mounting area of these elements cannot be avoided.
- the present invention has been made to solve such a problem, and an object of the present invention is to reduce a mounting area of an element used for detecting a direction of a housing.
- an electronic device includes a first housing, a second housing having a flat surface facing the first housing, and a flat surface of the second housing.
- a two-axis hinge that has two movable axes consisting of a parallel horizontal axis and a vertical axis perpendicular to the horizontal axis, and connects between the first housing and the second housing, and a vertical axis of the two-axis hinge And a first magnetic element disposed at a position separated from a central axis of the first casing passing through the first magnetic element.
- a magnetic field generated from a magnet disposed at a position spaced apart from the central axial force of the first housing is provided to the first housing by a biaxial hinge. Detecting by either one of the two magnetic sensors disposed at respective positions across the central axis of the second housing coupled by the two magnetic field sensors; and detecting the magnetic field by the two magnetic field sensors. Determining the orientation of the first housing with respect to the second housing based on whether the deviation is the same.
- the first magnetic element since the first magnetic element is disposed at a position apart from the central axial force of the first housing, the first housing when the first housing and the second housing are closed is provided. Depending on the orientation of the first magnetic element The position is symmetrical with respect to the central axis. Therefore, by arranging the second magnetic element at a position corresponding to these positions in the second housing, the orientation of the first housing can be determined. Conventionally, a total of four elements were required to detect the direction of the housing, but according to the present invention, the direction of the housing can be detected with a total of three elements, one first magnetic element and two second magnetic elements. It becomes. As described above, according to the present invention, the number of elements required for detecting the orientation of the housing can be reduced, and as a result, the mounting area of the elements can be reduced.
- FIG. 1 is a functional block diagram of a conventional foldable mobile phone using a one-axis hinge.
- FIG. 2 is a perspective view of a conventional foldable mobile phone employing a biaxial hinge, showing a state in which a display unit is stored and a housing is closed.
- FIG. 3 is a perspective view of a conventional foldable mobile phone employing a biaxial hinge, showing a state in which a display unit is exposed and a housing is closed.
- FIG. 4 is a perspective view of a foldable mobile phone according to a first embodiment of the present invention, showing a state where a display unit is stored and a housing is closed.
- FIG. 5 is a perspective view of the foldable mobile phone according to the first embodiment of the present invention, showing a state where an upper housing is opened.
- FIG. 6 is a perspective view of a foldable mobile phone according to a first embodiment of the present invention, showing a state where an upper housing is turning.
- FIG. 7 is a perspective view of the foldable mobile phone according to the first embodiment of the present invention, showing a state after the upper housing is turned 180 degrees.
- FIG. 8 is a perspective view of a foldable mobile phone according to a first embodiment of the present invention, showing a state in which a display unit is exposed and a housing is closed.
- FIG. 9 is a functional block diagram of a foldable mobile phone that works in the first embodiment of the present invention.
- FIG. 10 is a functional block diagram of an opening / closing detection unit in FIG.
- FIG. 11 is a perspective view of a foldable mobile phone according to a second embodiment of the present invention.
- FIG. 12 is a functional block diagram of a foldable mobile phone according to a second embodiment of the present invention.
- FIG. 13 is a functional block diagram of an opening / closing detection unit in FIG. 12.
- the foldable mobile phone 1 includes an upper housing (first housing) 2 having a display unit (display means) 11 disposed on a surface thereof. It has a lower housing (second housing) 3 on the surface of which an operation unit 4 is arranged, and a biaxial hinge 21 that connects between the two housings 2 and 3.
- first housing first housing
- second housing second housing
- a biaxial hinge 21 that connects between the two housings 2 and 3.
- Each of the housings 2 and 3 has a substantially rectangular shape in plan view, and a biaxial hinge 21 is connected to a short side of each of the housings 2 and 3.
- the biaxial hinge 21 is a hinge having two movable axes, and these two axes are generally arranged orthogonally.
- an axis provided substantially parallel to the plane of the lower housing 3 on which the operation unit 4 is provided is referred to as a horizontal axis X
- an axis provided substantially perpendicular to the horizontal axis is referred to as a vertical axis Y.
- the upper housing 2 and the lower housing 3 can be opened and closed about the horizontal axis X of the biaxial hinge 21, and the upper housing 2 can be pivoted about the vertical axis Y of the biaxial hinge 21. It is possible.
- the central axis of the upper housing 2 passes through the vertical axis Y of the biaxial hinge 21.
- a magnet (magnet, first magnetic element) 61 for generating a magnetic field is built in the upper housing 2 at a position separated from the central axis.
- the central axis A of the lower housing 3 is orthogonal to the horizontal axis X of the biaxial hinge 21.
- the center axis A of the lower housing 3 faces the center axis of the upper housing 2.
- Two magnetic sensors (second magnetic elements) 62 and 63 for detecting a magnetic field are built in each position of the lower housing 3 across the central axis A.
- the two magnetic sensors 62 and 63 are disposed substantially symmetrically with respect to the center axis A of the lower housing 3. As shown in FIG. 4, when the two housings 2 and 3 are closed, the magnetic sensor 62 faces the magnet 61. When the upper housing 2 is turned by 180 ° about the vertical axis Y of the biaxial hinge 21 and the two housings 2 and 3 are closed as shown in FIG. Opposes.
- MR sensors Magnetic Resistance sensors
- Sensor a magnetic resistance sensor
- MR sensors are magnetic sensors that make use of the fact that the resistance value changes with the magnetic field. Hall elements detect the polarity of the N / S poles! /, While the MR sensor is characterized by sensing regardless of the polarity of the magnetic poles.
- MR sensors are used as the magnetic sensors 62 and 63, one of which is referred to as a first MR sensor 62 and the other is referred to as a second MR sensor 63.
- the foldable mobile phone 1 includes a control unit 5, a storage unit 13, a voice processing unit 7, a microphone 71, a display unit 11, an operation unit 4, a magnet 61, and first and second MR sensors 62 and 63. It further includes a speaker 72, a radio unit 8, an antenna 81, a photographing unit 10, a display control unit 9, an open / close detection unit 6, and an interrupt controller 12.
- the operation unit 4, the control unit 5, the storage unit 13, the audio processing unit 7, the radio unit 8, the imaging unit 10, the display control unit 9, the open / close detection unit 6, and the interrupt controller 12 are connected to the bus 14. Have been.
- control unit 5 controls the operation of each unit of the foldable mobile phone 1.
- the storage unit 13 stores a program for operating the control unit 5 and other various data.
- the audio processing unit 7 performs processes such as AZD conversion of a signal input from the microphone 71 and DZA conversion of a signal output to the speaker 72.
- the radio unit 8 performs processes such as frequency conversion, encoding, and decoding of signals transmitted and received by the antenna 81.
- the photographing unit 10 performs photographing with a camera.
- the display control unit 9 performs control when displaying an image including characters on the display unit 11.
- the open / close detection unit 6 detects the open / close state of the upper housing 2 and the lower housing 3 based on the detection results of the two MR sensors 62 and 63. As shown in FIG.
- the opening / closing detection unit 6 also detects the direction of the upper housing 2 when the housing is closed, that is, the display unit 11, by the force of which of the two MR sensors 62 and 63 has detected the magnetic field.
- the interrupt controller 12 performs interrupt control when the two housings 2 and 3 are closed with the display unit 11 exposed to the outside.
- the magnet 61 has the N pole facing the display unit 11 side and the S pole faces the opposite side of the display unit 11.
- the upper housing 2 and the lower housing 2 are Case 3 is closed.
- the first MR sensor 62 faces the N pole of the magnet 61. Therefore, a high-density magnetic flux is applied to the first MR sensor 62 from the N pole of the magnet 61.
- a magnetic flux is applied to the detection surface of the first MR sensor 62
- a current flows from the first MR sensor 62 to the open / close detection unit 6 in a directed manner.
- no magnetic flux is applied to the detection surface of the second MR sensor 63, no current flows from the second MR sensor 63 to the open / close detection unit 6.
- the state shown in FIG. 6 is obtained.
- the display unit 11 is further turned around the 90-degree vertical axis Y, the display unit 11 faces the lower housing 3 as shown in FIG. At this time, the second MR sensor 63 faces the S pole of the magnet 61.
- the upper housing 2 and the lower housing 3 can be closed with the display unit 11 being exposed to the outside.
- the magnetic flux force from the S pole of the magnet 61 is applied to the detection surface of the second MR sensor 63.
- a current flows from the second MR sensor 63 to the open / close detection unit 6.
- no current flows from the first MR sensor 62 to the opening / closing detecting section 6.
- the open / close detection unit 6 Upon making such a determination, the open / close detection unit 6 outputs an interrupt signal to the interrupt controller 12.
- the interrupt controller 12 further sends an interrupt signal to the control unit 5.
- the control unit 5 Upon receiving the interrupt signal from the interrupt controller 12, the control unit 5 performs a process at the time of opening / closing detection.
- Conditions for outputting an interrupt signal from the open / close detection unit 6 include the following. Can do.
- control unit 5 may not be notified of a change in the state of the housing when a specific application or function (operator) is operating.
- Examples of the processing at the time of detecting the open / close state include the following.
- the magnet 61 since the magnet 61 is disposed at a position where the central axial force of the upper housing 2 is also separated, the upper housing 2 and the lower housing 3 when the lower housing 3 is closed are closed. Depending on the direction of the housing 2, the magnet 61 comes to a position symmetric with respect to the central axis. Therefore, by arranging the first MR sensor 62 and the second MR sensor 63 at positions corresponding to these positions in the lower housing 3, the orientation of the upper housing 2 can be determined. According to the present embodiment, both the “male” (magnetic flux in the Hall element or the protrusion in the switch) and the “female” (Hall element or the switch itself) both needed to detect the orientation of the housing. The "male” side It becomes possible to be one. As described above, according to the present embodiment, the number of elements required for detecting the orientation of the housing can be reduced, and as a result, the mounting area of the elements can be reduced.
- a magnet 61 is arranged in the upper housing 2 and a first MR sensor 62 and a second MR sensor 63 are arranged in the lower housing 3.
- the first MR sensor 62 and the second MR sensor 63 may be provided in the upper housing 2 and the magnet 61 may be provided in the lower housing 3.
- the first MR sensor 62 and the second MR sensor 63 are arranged in the vicinity of the force biaxial hinge 21 that is disposed at the end of the lower housing 3 that is not connected with the biaxial hinge 21. Good.
- Hall elements corresponding to respective polarities can be used, but in this case, the number of types of components increases (N-pole reaction type and S-pole reaction type). This is disadvantageous in terms of manufacturing costs.
- a foldable mobile phone 1A that works in the second embodiment detects two magnets (magnets, second magnetic elements) 65 and 66 having polarities different from each other, and detects the direction of magnetic flux.
- two magnetic sensors (first magnetic elements) 67 an effect similar to that of the above-described first embodiment is obtained.
- the Hall element 67 is used as the magnetic sensor 67 will be described.
- an N-pole magnet 65 and an S-pole magnet 66 are arranged at the positions of the first MR sensor 62 and the second MR sensor 63 in the first embodiment, and the magnet in the first embodiment is provided.
- the Hall element 67 is arranged at the position 61. That is, the N-pole magnet 65 and the S-pole magnet 66 are built in each position substantially symmetrical with respect to the central axis A of the lower housing 3, and the Hall element is located at a position apart from the central axial force of the upper housing 2. 67 is built-in.
- the Hall element 67 is electrically connected to the open / close detection unit 6A as shown in FIG. The direction of the output current of the Hall element 67 changes depending on the direction of the magnetic flux.
- the direction determining unit (direction determining means) 64A of the opening / closing detecting unit 6A shown in FIG. 13 determines the direction of the upper housing 2 based on the direction of the output current of the Hall element 67.
- the same components as those shown in FIGS. 5 and 9 are indicated by the same reference numerals as those in FIGS. 5 and 9.
- INDUSTRIAL APPLICATION This invention can be utilized for a foldable mobile telephone. In addition, it can be used for electronic devices such as PDAs, notebook computers, and camcorders.
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- Theoretical Computer Science (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05748671A EP1755317A4 (en) | 2004-06-10 | 2005-06-10 | ELECTRONIC DEVICE AND METHOD FOR DETECTING THE HOUSING SEAL |
US11/579,388 US20080256751A1 (en) | 2004-06-10 | 2005-06-10 | Electronic Apparatus and Method of Detecting Housing Direction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-172755 | 2004-06-10 | ||
JP2004172755A JP2005354384A (ja) | 2004-06-10 | 2004-06-10 | 折り畳み型携帯端末機器の開閉検出機構及び開閉検出方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005122537A1 true WO2005122537A1 (ja) | 2005-12-22 |
Family
ID=35503487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/010683 WO2005122537A1 (ja) | 2004-06-10 | 2005-06-10 | 電子機器、および、筐体の向き検出方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080256751A1 (ja) |
EP (1) | EP1755317A4 (ja) |
JP (1) | JP2005354384A (ja) |
CN (1) | CN1985500A (ja) |
WO (1) | WO2005122537A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007086333A1 (ja) * | 2006-01-30 | 2007-08-02 | Nec Corporation | 携帯電子機器 |
JP2008250835A (ja) * | 2007-03-30 | 2008-10-16 | Toshiba Corp | 情報処理装置 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4771966B2 (ja) * | 2007-01-25 | 2011-09-14 | 京セラ株式会社 | 携帯端末装置 |
US7941191B2 (en) * | 2007-02-27 | 2011-05-10 | Sony Ericsson Mobile Communications Ab | Magnetic hinge mechanism for wireless communication devices |
JP5028585B2 (ja) * | 2007-12-28 | 2012-09-19 | 富士通モバイルコミュニケーションズ株式会社 | 電子機器 |
US9063182B2 (en) | 2008-11-10 | 2015-06-23 | Google Technology Holdings LLC | Detecting three different open ranges in a flip device |
CN101629967B (zh) * | 2009-07-10 | 2011-04-20 | 华为终端有限公司 | 移动终端上的方向感应方法及装置 |
US8172461B2 (en) * | 2009-08-31 | 2012-05-08 | General Electric Company | Grid assembly positioning circuit and detector assembly including the same |
JP5641890B2 (ja) * | 2010-11-10 | 2014-12-17 | キヤノン株式会社 | 電子機器 |
JP2013051535A (ja) * | 2011-08-31 | 2013-03-14 | Sanyo Electric Co Ltd | 回動型電子機器 |
TWI547651B (zh) * | 2013-06-05 | 2016-09-01 | 緯創資通股份有限公司 | 雙軸式樞紐機構及其相關可攜式電子裝置 |
KR102034585B1 (ko) * | 2013-07-09 | 2019-10-21 | 엘지전자 주식회사 | 디스플레이 장치 |
CN106969761A (zh) * | 2017-04-24 | 2017-07-21 | 湖南宇环智能装备有限公司 | 一种用于产品姿态检测的自动化检测装置 |
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JP2005286610A (ja) * | 2004-03-29 | 2005-10-13 | Nec Corp | 折畳式携帯電話機 |
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- 2004-06-10 JP JP2004172755A patent/JP2005354384A/ja active Pending
-
2005
- 2005-06-10 US US11/579,388 patent/US20080256751A1/en not_active Abandoned
- 2005-06-10 WO PCT/JP2005/010683 patent/WO2005122537A1/ja not_active Application Discontinuation
- 2005-06-10 CN CN200580015077.5A patent/CN1985500A/zh active Pending
- 2005-06-10 EP EP05748671A patent/EP1755317A4/en not_active Withdrawn
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JP2003244293A (ja) * | 2002-02-14 | 2003-08-29 | Nec Corp | 折り畳み式携帯情報端末 |
JP2005123786A (ja) * | 2003-10-15 | 2005-05-12 | Sharp Corp | 携帯機器 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007086333A1 (ja) * | 2006-01-30 | 2007-08-02 | Nec Corporation | 携帯電子機器 |
US8688178B2 (en) | 2006-01-30 | 2014-04-01 | Nec Corporation | Mobile electronic apparatus |
JP2008250835A (ja) * | 2007-03-30 | 2008-10-16 | Toshiba Corp | 情報処理装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1985500A (zh) | 2007-06-20 |
EP1755317A4 (en) | 2007-11-14 |
EP1755317A1 (en) | 2007-02-21 |
JP2005354384A (ja) | 2005-12-22 |
US20080256751A1 (en) | 2008-10-23 |
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