WO2010109880A1 - 無線通信端末 - Google Patents
無線通信端末 Download PDFInfo
- Publication number
- WO2010109880A1 WO2010109880A1 PCT/JP2010/002134 JP2010002134W WO2010109880A1 WO 2010109880 A1 WO2010109880 A1 WO 2010109880A1 JP 2010002134 W JP2010002134 W JP 2010002134W WO 2010109880 A1 WO2010109880 A1 WO 2010109880A1
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- WIPO (PCT)
- Prior art keywords
- terminal
- wireless communication
- communication terminal
- external device
- battery
- Prior art date
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- 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
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
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- 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
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
Definitions
- the present invention relates to a wireless communication terminal, and more particularly to a wireless communication terminal that is detachably attached to an information processing terminal (external device) such as a notebook personal computer and that is driven by receiving power supply from the external device. is there.
- a wireless communication terminal equipped with wireless communication means
- communication processing can be performed by connecting to an external communication network such as a mobile communication network.
- a wireless communication terminal is used by being inserted into an insertion port such as a USB (Universal Serial Bus) terminal or a card slot provided in the information processing terminal.
- an insertion port such as a USB (Universal Serial Bus) terminal or a card slot provided in the information processing terminal.
- the wireless communication terminal is removed from the insertion port.
- the wireless communication terminal holds session information with the base station during communication. However, if the wireless communication terminal is pulled out from the information processing terminal before the session information is held by the wireless communication terminal, the wireless communication terminal must start holding the session information again at the next communication connection. As a result, there is a problem that it takes time to connect.
- the present applicant warns the user at the time of extraction or notifies the user that preparation for extraction is completed so that the wireless communication terminal is not suddenly extracted from the information processing terminal.
- Systems that can be safely pulled out from the information processing terminal have been devised (Japanese Patent Laid-Open No. 2006-184977, Japanese Patent Laid-Open No. 2006-209250, Japanese Patent Laid-Open No. 2007-172665, Japanese Patent Laid-Open No. 2007-183997).
- an object of the present invention made in view of such a point is that even when a wireless communication terminal in communication processing is pulled out of the information processing terminal, for example, and power supply is interrupted, the communication processing can be normally terminated. It is to provide a simple wireless communication terminal.
- a wireless communication device that is driven by receiving power supply from a connected external device, A wireless communication unit that wirelessly communicates with a wireless base station; A battery capable of driving the terminal without receiving power from the external device; When communication processing using the wireless communication unit is performed by receiving power supply from the external device, if the connection with the external device is disconnected, the terminal is switched to driving by the battery and the communication is performed.
- a control unit that performs a continuation process for normally ending the process, and then controls to stop driving the terminal by the battery; It is characterized by providing.
- a wireless communication apparatus is A storage unit for storing PRL (roaming information);
- the control unit completes rewriting of the PRL of the storage unit as the continuation process when the connection with the external device is disconnected while the PRL of the storage unit is being rewritten as the communication processing It is characterized by that.
- a wireless communication device A storage unit for storing subscriber information; When the connection to the external device is disconnected while the control unit writes the subscriber information in the storage unit as the communication process, the subscriber information to the storage unit is used as the continuation process. Is completed.
- a wireless communication device is The control unit completes the update process of the own terminal as the continuation process when the connection with the external device is disconnected while the update process of the own terminal is performed as the communication process.
- a wireless communication apparatus When the wireless communication unit performs wireless communication, the battery supplies power that is insufficient for power supply from the external device as auxiliary power.
- the wireless communication terminal includes a battery.
- the wireless communication terminal is pulled out from the information processing terminal during the communication processing, for example, the disconnection with the information processing terminal is detected, and the communication processing is performed by battery driving. Continue processing to finish normally. For this reason, even when the wireless communication terminal in communication processing is pulled out from the information processing terminal, for example, the communication processing can be normally terminated.
- FIG. It is a figure which shows schematic structure of the radio
- FIG. 1 is a diagram showing a schematic configuration of a wireless communication terminal according to an embodiment of the present invention.
- the wireless communication terminal 1 includes a wireless communication unit 11, a control unit 12, a disconnection detection unit 13, an external communication unit 14, a power supply control unit 15, and a battery 16.
- the wireless communication terminal 1 is connected to the information processing terminal 2 (external device) by a data line LD and a power supply line LP.
- the data line LD is connected to the external communication unit 14, and the power supply line LP is connected to the battery 16 via the power supply control unit 15.
- the wireless communication terminal 1 is basically configured to be connected to the information processing terminal 2 and driven only by the power supply via the power supply line LP. However, the wireless communication terminal 1 is temporarily incorporated even when not connected to the information processing terminal 2.
- the own terminal can be driven by the battery 16.
- the wireless communication unit 11 performs wireless communication with a base station (not shown) of a wireless communication network.
- the control unit 12 controls whether the own terminal (wireless communication terminal 1) is driven by the power supplied from the information processing terminal 2 or the own terminal (wireless communication terminal 1) is driven by the battery 16.
- the disconnection detection unit 13 detects disconnection of the connection between the own terminal (wireless communication terminal 1) and the information processing terminal 2.
- the disconnection detection unit 13 can monitor the voltage of the power supply line LP and detect disconnection based on the fluctuation (such as a drop) of the voltage.
- the disconnection detection unit 13 can monitor the voltage of the data line LD, for example, and detect disconnection based on the voltage fluctuation (such as a drop).
- the external communication unit 14 exchanges data with the information processing terminal 2 via the data line LD.
- the power supply control unit 15 supplies power supplied from the information processing terminal 2 to the battery 16 through the feeder line LP.
- the battery 16 stores power for driving its own terminal (wireless communication terminal 1) without receiving power supply from the information processing terminal 2.
- the battery 16 stores the power supplied from the information processing terminal 2 while the terminal (wireless communication terminal 1) is connected to the information processing terminal 2, and stores information on the battery 16 and the terminal 16 (wireless communication terminal 1). After the connection with the processing terminal 2 is disconnected, the stored power can be used for driving the terminal (wireless communication terminal 1).
- the wireless communication unit 11 can be configured from any suitable interface device that supports any wireless communication system.
- disconnection detection part 13, the external communication part 14, and the power supply control part 15 are comprised as software performed on arbitrary suitable processors, such as CPU (central processing unit), or each process is carried out. It can be constituted by a specialized dedicated processor (for example, DSP (digital signal processor)).
- the disconnection detection unit 13 recognizes the connection by monitoring the voltage of the feeder line LP, for example.
- the control unit 12 starts driving its own terminal (wireless communication terminal 1) with the power supplied from the information processing terminal 2 triggered by the recognition of the connection (that is, the start of power feeding).
- the wireless communication unit 11 receives a drive start by the control unit 12 and establishes a wireless link with a base station (not shown) of the wireless communication network to perform communication processing.
- the external communication unit 14 exchanges data with the information processing terminal 2 via the data line LD, and the wireless communication unit 11 communicates with a base station (not shown). To transmit and receive the data.
- examples of the communication processing here include rewriting of PRL by OTA, writing of ID information (subscription information) such as a telephone number, updating of firmware and functions of the modem unit, and the like.
- Examples of this communication process include standby operation, handover (handoff), and holding session information exchanged with a base station.
- the control unit 12 performs a process for normally ending the communication process being executed according to the control information from the information processing terminal 2. Thereafter, when the communication process ends normally and there is no problem even if the connection between the wireless communication terminal 1 and the information processing terminal 2 is disconnected, the wireless communication terminal 1 sends control information indicating that to the information processing terminal 2. Send to.
- the information processing terminal 2 notifies the user that the wireless communication terminal 1 can be pulled out and removed in accordance with the control information from the wireless communication terminal 1, and the user receives the notification and receives the notification. Is removed from the information processing terminal 2 and removed.
- the wireless communication terminal 1 After the wireless communication terminal 1 is connected to the information processing terminal 2, the wireless communication terminal 1 starts driving (powering on) its own terminal (wireless communication terminal 1) with the power supplied from the information processing terminal 2. Is. Therefore, it should be noted that the configuration is different from a handset type terminal that is driven in advance before connecting to the information processing terminal 2 and capable of wireless communication, such as a mobile phone.
- the wireless communication terminal 1 stops the driving of the own terminal (wireless communication terminal 1) when the communication process is normally completed (power OFF). To do. Further, the wireless communication terminal 1 is linked to the information processing terminal 2 even when the power of the information processing terminal 2 itself connected is turned off and the connection with the information processing terminal 2 is disconnected (disabled). Then, the driving of the own terminal (wireless communication terminal 1) can be stopped (power off). Therefore, it should be noted that the configuration is different from a handset type terminal such as a mobile phone in which the user turns off the terminal with a power button or the like.
- the user may pull out the wireless communication terminal 1 from the information processing terminal 2 without waiting for notification that the wireless communication terminal is removable. .
- FIG. 2 is a flowchart of the wireless communication terminal 1.
- the wireless communication terminal 1 is pulled out from the information processing terminal 2 during the communication process, the continuation process and the interruption process for normally ending the communication process are performed.
- movement to perform is shown.
- Step S101 when the user connects the wireless communication terminal 1 to the information processing terminal 2, the control unit 12 starts driving the terminal (wireless communication terminal 1) with power supplied from the information processing terminal 2 (power ON) (Step S101).
- the wireless communication unit 11 performs initialization processing such as establishing a wireless link with the base station (step S102), and starts communication processing with the base station (step S103).
- the disconnection detection unit 13 detects disconnection of the connection between the terminal (wireless communication terminal 1) and the information processing terminal 2 from the voltage of the data line LD or the power supply line LP. (Step S104).
- the control unit 12 drives the own terminal (wireless communication terminal 1). Is switched to driving by the battery 16 (step S105).
- the control unit 12 determines from the contents of the communication process being executed whether or not a continuation process for normally ending the communication process being executed is necessary (step S106).
- the continuation process for normally terminating the communication process includes all processes for properly terminating the communication process. For example, the communication processing is executed up to a well-separated portion in order to reduce the communication load after the reconnection, or the processing for preventing the operation of the wireless communication terminal 1 from becoming unstable due to the disconnection of the connection.
- control unit 12 determines that the continuation process is necessary (Yes in step S106)
- the control unit 12 refers to the remaining power level of the battery 16 via the power supply control unit 15, and the remaining power level continues the continuation process. It is determined whether it is enough to perform (step S107).
- a correspondence table between predetermined continuation processing and required power for the continuation processing can be prepared in advance.
- control unit 12 determines that the remaining power of the battery 16 is sufficient (Yes in step S107), the control unit 12 executes a continuation process for normally ending the communication process being executed (step S108). ).
- the control unit 12 determines that the remaining amount of power of the battery 16 is not sufficient (No in step S107), the control unit 12 executes an interruption process for interrupting the communication process being executed (step S109).
- the interruption process for interrupting the communication process includes any process that can be performed with limited power in order to appropriately terminate the communication process. For example, with a limited amount of power, it is possible to prevent communication processing from being executed to a well-separated portion in order to reduce the communication load after reconnection, and the operation of the wireless communication terminal 1 from becoming unstable due to disconnection. And the like.
- step S109 the interruption process is performed in step S110, or the continuation process is not necessary in step S107, the control unit 12 determines each processing unit (for example, the wireless communication terminal 1) (for example, The termination processing of the wireless communication unit 11, the disconnection detection unit 13, the external communication unit 14, and the power supply control unit 15) is performed (step S111).
- each processing unit for example, the wireless communication terminal 1
- the control unit 12 determines each processing unit (for example, the wireless communication terminal 1) (for example, The termination processing of the wireless communication unit 11, the disconnection detection unit 13, the external communication unit 14, and the power supply control unit 15) is performed (step S111).
- FIG. 3 is a flowchart of the end process.
- the control unit 12 instructs each processing unit to execute a termination processing program for making a transition to the power OFF state (step S201).
- the control unit 12 recognizes that the execution of the termination processing program of all the processing units has been completed (step S202)
- the control unit 12 stops the hardware of each processing unit (step S203). It should be noted that each processing unit can be stopped in hardware by the end processing program itself executed by each processing unit.
- control unit 12 stops driving the terminal (wireless communication terminal 1) by the battery 16 (power OFF) (S112).
- the wireless communication terminal 1 includes the battery 16 and detects disconnection from the information processing terminal 2 when it is pulled out from the information processing terminal 2 during the communication process. Then, continuation processing (interruption processing) for normally ending the communication processing by driving by the battery 16 is performed. Therefore, even when the wireless communication terminal 1 in communication processing is pulled out from the information processing terminal 2, the communication processing can be normally terminated. In addition, since the wireless communication terminal 1 stops the operation of the terminal after the end of the continuous process (interruption process), the power consumption of the battery 16 becomes zero at that time, and unnecessary power consumption is avoided. Can do.
- FIG. 4 is a flowchart of continuation processing when the communication processing is rewriting of PRL (roaming area information) by OTA.
- the wireless communication terminal 1 includes a storage unit (not shown) for storing the PRL in addition to the configuration shown in FIG.
- the control unit 12 needs to continue the process when the connection with the information processing apparatus 2 is disconnected while the PRL of the storage unit is being rewritten in step S106. Is determined.
- step S108 as shown in FIG. 4, the control unit 12 completes the PRL rewriting process in the storage unit as a continuation process (step S301).
- the wireless communication terminal 1 completes the PRL rewriting process of the storage unit as the continuation process. For this reason, even when the wireless communication terminal 1 is pulled out from the information processing terminal 2 during the rewriting of the PRL, the communication process ends normally, and the information rewritten so far is not wasted. For this reason, when the wireless communication terminal 1 is again inserted into the insertion slot of the information processing terminal 2 and reconnected, there is no need to rewrite information from the beginning, and processing such as wireless communication can be started quickly. It becomes possible.
- FIG. 5 is a flowchart of continuation processing when the communication processing is writing ID information (subscriber information) such as a telephone number by OTA.
- the wireless communication terminal 1 includes a storage unit (not shown) that stores subscriber information in addition to the configuration shown in FIG.
- the control unit 12 continues the process when the connection with the information processing apparatus 2 is disconnected while the subscriber information is being written in the storage unit in step S106. Is determined to be necessary.
- step S108 as shown in FIG. 5, the control unit 12 completes the writing process of the subscriber information in the storage unit (step S401), and manages the subscriber information through the wireless communication unit 11.
- An end notification indicating that the writing of subscriber information has been completed is transmitted to (not shown) (step S402).
- the wireless communication terminal 1 completes the writing of the subscriber information to the storage unit as the continuation process. For this reason, even when the wireless communication terminal 1 is pulled out from the information processing terminal 2 while the subscriber information is being written, the communication process is normally completed, and the information written so far is not wasted. For this reason, when the wireless communication terminal 1 is again inserted into the insertion slot of the information processing terminal 2 and reconnected, there is no need to write information again from the beginning, and processing such as wireless communication can be started quickly. It becomes possible. In addition, since the writing completion notification is transmitted to the management server, unnecessary retransmission of information by the management server can be prevented.
- FIG. 6 is a flowchart of the continuation process when the communication process is updating the own terminal by OTA.
- the update here includes an update of the firmware of the modem, the function of each processing unit, and the like.
- the control unit 12 determines that the continuation process is necessary when the connection with the information processing apparatus 2 is disconnected while the update process of the own terminal is being performed.
- step S108 as shown in FIG. 6, the control unit 12 completes the update process of its own terminal (step S501), and passes through the wireless communication unit 11 to a management server (not shown) that manages update information.
- an end notification indicating that the update process has been completed is transmitted (step S502).
- the wireless communication terminal 1 completes the update process as a continuation process. For this reason, even when the wireless communication terminal 1 is pulled out from the information processing terminal 2 during the update process, the communication process ends normally, and the processing content up to that point is not wasted. For this reason, when the wireless communication terminal 1 is again inserted into the insertion slot of the information processing terminal 2 and reconnected, there is no need to perform update processing from the beginning, and processing such as wireless communication can be started quickly. It becomes. It is also possible to prevent the terminal from becoming inoperable (broken) due to the interruption of the update process. In addition, since an update processing completion notification is transmitted to the management server, unnecessary retransmission of information by the management server can be prevented.
- FIG. 7 is a flowchart of the interruption process.
- the interruption process is a process in a case where the power stored in the battery 16 is not sufficient to perform the continuous process, and thus does not complete an entire communication process. However, even when the wireless communication terminal 1 in communication processing is pulled out from the information processing terminal 2, the communication processing can be normally terminated by performing up to a certain part of the communication processing with limited power. It is.
- the control unit 12 performs the write process up to the firmware interruption block so as to be a break of the update process (step S601), and then the wireless communication unit 11 Then, an intermediate end notification indicating that the update processing has been completed is transmitted to a management server (not shown) that manages the update information (step S602).
- the wireless communication terminal 1 completes a part of the update process as the interruption process. For this reason, even when the wireless communication terminal 1 is pulled out from the information processing terminal 2 during the update process and the power of the battery 16 is not sufficient, the communication process ends normally, and the processing content up to that point is wasted. Absent. For this reason, when the wireless communication terminal 1 is again inserted into the insertion slot of the information processing terminal 2 and reconnected, there is no need to perform update processing from the beginning, and processing such as wireless communication can be started quickly. It becomes. It is also possible to prevent the terminal from becoming inoperable (broken) due to the interruption of the update process. In addition, since the notification of the end of the update process is transmitted to the management server, the management server can transmit only the part of the update data to be retransmitted to the wireless communication terminal 1 after reconnection.
- the wireless communication terminal 1 is basically configured to be driven only by power supply from the power supply line LP after being connected to the information processing terminal 2.
- a predetermined condition for example, when the information processing terminal 2 is away from the base station (not shown), it is necessary to increase the transmission output of the wireless communication unit 11 in order to connect the wireless link.
- the battery 16 can be driven by being supplied with electric power.
- the transmission output of the wireless communication unit 11 is increased, whereby the communication process can be normally terminated.
- the power supply from the battery 16 can be received and driven.
- the continuation process executed by the wireless communication terminal 1 according to the present invention is not limited to the PRL rewrite, the subscription information write, and the update process by OTA shown in FIGS.
- the control unit 12 completes the storage of the standby operation and handover control information as the continuation processing. Can do.
- the control unit 12 can complete the storage of the session information as a continuation process.
- Wireless communication terminal 2 Information processing terminal (external device) DESCRIPTION OF SYMBOLS 11 Wireless communication part 12 Control part 13 Disconnection detection part 14 External communication part 15 Power supply control part 16 Battery LP Feeding line LD Data line
Abstract
Description
接続している外部装置から電力の供給を受けて駆動する無線通信端末であって、
無線基地局と無線通信する無線通信部と、
前記外部装置から電力の供給を受けずに自端末を駆動可能なバッテリと、
前記外部装置から電力の供給を受けて前記無線通信部を用いた通信処理をしている際に、該外部装置との接続が切断されると、自端末を前記バッテリによる駆動に切り替えて前記通信処理を正常に終了するための継続処理を実行し、その後、前記バッテリによる自端末の駆動を停止するように制御する制御部と、
を備えることを特徴とする。
PRL(ローミング情報)を記憶する記憶部を備え、
前記制御部は、前記通信処理として前記記憶部の前記PRLを書き換えている間に、前記外部装置との接続が切断された場合に、前記継続処理として前記記憶部の前記PRLの書き換えを完了させることを特徴とする。
加入者情報を記憶する記憶部を備え、
前記制御部は、前記通信処理として前記記憶部に前記加入者情報を書き込んでいる間に、前記外部装置との接続が切断された場合に、前記継続処理として前記記憶部への前記加入者情報の書き込みを完了させることを特徴とする。
前記制御部は、前記通信処理として自端末のアップデート処理を行っている間に、前記外部装置との接続が切断された場合に、前記継続処理として自端末の前記アップデート処理を完了させることを特徴とする。
前記バッテリは、前記無線通信部が無線通信する際に、前記外部装置から電力の供給では不足する電力分を補助電力として供給することを特徴とする。
2 情報処理端末(外部装置)
11 無線通信部
12 制御部
13 切断検出部
14 外部通信部
15 電源制御部
16 バッテリ
LP 給電線
LD データ線
Claims (5)
- 接続している外部装置から電力の供給を受けて駆動する無線通信端末であって、
無線基地局と無線通信する無線通信部と、
前記外部装置から電力の供給を受けずに自端末を駆動可能なバッテリと、
前記外部装置から電力の供給を受けて前記無線通信部を用いた通信処理をしている際に、該外部装置との接続が切断されると、自端末を前記バッテリによる駆動に切り替えて前記通信処理を正常に終了するための継続処理を実行し、その後、前記バッテリによる自端末の駆動を停止するように制御する制御部と、
を備えることを特徴とする無線通信端末。 - PRL(ローミング情報)を記憶する記憶部を備え、
前記制御部は、前記通信処理として前記記憶部の前記PRLを書き換えている間に、前記外部装置との接続が切断された場合に、前記継続処理として前記記憶部の前記PRLの書き換えを完了させることを特徴とする、請求項1に記載の無線通信端末。 - 加入者情報を記憶する記憶部を備え、
前記制御部は、前記通信処理として前記記憶部に前記加入者情報を書き込んでいる間に、前記外部装置との接続が切断された場合に、前記継続処理として前記記憶部への前記加入者情報の書き込みを完了させることを特徴とする、請求項1に記載の無線通信端末。 - 前記制御部は、前記通信処理として自端末のアップデート処理を行っている間に、前記外部装置との接続が切断された場合に、前記継続処理として自端末の前記アップデート処理を完了させることを特徴とする、請求項1に記載の無線通信端末。
- 前記バッテリは、前記無線通信部が無線通信する際に、前記外部装置から電力の供給では不足する電力分を補助電力として供給することを特徴とする、請求項1乃至4のいずれかに記載の無線通信端末。
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KR1020117022318A KR101527480B1 (ko) | 2009-03-26 | 2010-03-25 | 무선통신단말 |
JP2011505880A JP5701746B2 (ja) | 2009-03-26 | 2010-03-25 | 無線通信端末 |
US13/259,106 US8781405B2 (en) | 2009-03-26 | 2010-03-25 | Radio communication terminal |
CN201080013453.8A CN102362239B (zh) | 2009-03-26 | 2010-03-25 | 无线通信终端 |
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- 2010-03-25 CN CN201080013453.8A patent/CN102362239B/zh not_active Expired - Fee Related
- 2010-03-25 KR KR1020117022318A patent/KR101527480B1/ko active IP Right Grant
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CN102362239A (zh) | 2012-02-22 |
JPWO2010109880A1 (ja) | 2012-09-27 |
KR101527480B1 (ko) | 2015-06-09 |
US8781405B2 (en) | 2014-07-15 |
US20120015609A1 (en) | 2012-01-19 |
JP5701746B2 (ja) | 2015-04-15 |
KR20110124322A (ko) | 2011-11-16 |
CN102362239B (zh) | 2016-03-16 |
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