CN1968477A - File update method of mobile communication terminal using firmwate over the air and the mobile communication terminal therefor - Google Patents
File update method of mobile communication terminal using firmwate over the air and the mobile communication terminal therefor Download PDFInfo
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- CN1968477A CN1968477A CNA2006101504805A CN200610150480A CN1968477A CN 1968477 A CN1968477 A CN 1968477A CN A2006101504805 A CNA2006101504805 A CN A2006101504805A CN 200610150480 A CN200610150480 A CN 200610150480A CN 1968477 A CN1968477 A CN 1968477A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
- G06F8/66—Updates of program code stored in read-only memory [ROM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/70—Software maintenance or management
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Abstract
The present invention discloses a file update method of mobile communication terminal using firmwate air transmission service and the mobile communication terminal thereof, wherein said method comprises: a first process used for asking for a file update using firmwate air transmission service from a mobile communication network; a second process used for receiving a request for a file update and storing temporarily a data packet which is transferred by a mobile communication network and used for file updating to a read-only memory; a third process used for copying a update data packet of files to be updated stored in the read-only memory to a random access memory and performing a system loading according to files to be updated; a fourth process used for performing a file update operation aiming at the read-only memory on the basis of the file to be updated when the loading amount of the system is lower than a specific standard at a state that the file to be updated reaches the loading of the system. The adoption of the present invention is capable of overcoming the problem existing in present technology that one user can't use a mobile communication terminal when the recording data in the read-only memory is updated.
Description
Technical field
The present invention relates to a kind of firmware that utilizes and transmit mobile communication terminal and file updating method thereof that (FOTA:Firmware Over The Air) service execution file upgrades in the air.
Background technology
Firmware transmits the service that (FOTA:Firmware Over The Air) service refers to upgrade with wireless remote the firmware that is built in mobile communication terminal in the air.
According to prior art,, mobile communication terminal transmits the various files that (FOTA:FirmwareOver The Air) service updates stored in mobile communication terminal in the air for utilizing firmware, and the user selects the FOTA services menu at the main menu window.
At this moment, the mobile communication terminal file that will upgrade by screen display.When the user selected to upgrade execute key, mobile communication terminal upgraded for execute file, received more new data packets from mobile communications network.
Mobile communication terminal is according to the more new data packets that receives from mobile communications network, for the read-only memory execute file renewal of memory.
Finish when upgrading at the file of read-only memory, restarting systems, with the file copy that is updated to read-only memory to random access memory and Load System, and, finished the guidance information that file upgrades to user's output notice.
According to prior art, for upgrading,, need the long time with data are electric when being recorded in read-only memory at the read-only memory execute file.Therefore, data are recorded in read-only memory during (long be several minutes), mobile communication terminal can not be carried out other communication function.
As mentioned above, the user can not receive transmission from other local urgent call at mobile communication terminal execute file reproducting periods, can not call out.
Summary of the invention
When technical problem to be solved by this invention is to provide a kind of mobile communication terminal to utilize FOTA service execution file to upgrade, all inconvenience that can not make the user feel to use mobile communication terminal and bring also can execute file be upgraded, and utilizes firmware to transmit the file updating method and the mobile communication terminal thereof of the mobile communication terminal of (FOTA:Firmware Over The Air) service in the air.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of file updating method that utilizes firmware to transmit the mobile communication terminal of (FOTA:Firmware Over The Air) service in the air, be characterised in that to comprise: the 1st step from the file renewal of FOTA service to the mobile communications network request that utilize; The mobile communications network transmission of file update request is accepted in reception, is used for the 2nd step that file data updated bag is stored in read-only memory temporarily; The file that upgrades is copied to random access memory from the more new data packets that is stored in read-only memory temporarily, and the 3rd step of loading according to the file executive system of upgrading; Finish according to the file that is updated under the state of system loading, when the useful load of system is lower than certain standard, according to the file that is updated, the 4th step of upgrading at the read-only memory execute file.
Preferentially, the 3rd step comprises: by analyze the more new data packets that is stored in read-only memory temporarily, extract the step of the file that is updated; Restarting systems is with the file copy that is updated the extracted step to random access memory; According to the file that is updated that copies to random access memory, the step that executive system is loaded.
Preferentially, when the state of mobile communication terminal is in holding state, the 4th step will think that the useful load of system is lower than certain standard.
Preferentially, the 4th step is upgraded at the read-only memory execute file by the backstage.
According to the present invention, read-only memory and system in order to carry out storage file provide a kind of mobile communication terminal, and its feature comprises: the memory that comprises the random access memory of the file that preservation duplicates from read-only memory; Utilize the file of FOTA service to upgrade and when receiving more new data packets to the mobile communications network request, store read-only memory into temporarily, and with the file that is updated after more new data packets copies to random access memory, according to the file executive system dress that is updated, and the useful load of system is when being lower than certain standard, according to the file that is updated, at the control part of read-only memory execute file renewal.
Preferentially, control part comprises: to the update request portion that the mobile communications network request utilizes the file of FOTA service to upgrade; The mobile communications network transmission of file update request is accepted in reception, is used for the stores processor portion that file data updated bag is stored in read-only memory temporarily; The file that is updated is copied to random access memory from the more new data packets that is kept at read-only memory temporarily, and the random access memory that loads according to the file executive system that is updated upgrades handling part; Finish according to the file that is updated under the state of system loading, when the useful load of system was lower than certain standard, according to the file that is updated, the read-only memory that upgrades at the read-only memory execute file upgraded handling part.
Preferentially, random access memory renewal handling part comprises: extract the extraction unit of the file that is updated by analyze the more new data packets that is stored in read-only memory temporarily; Restarting systems will arrive the replication processes portion of random access memory by the file copy that is updated that extraction unit is extracted; System loading portion according to the file executive system that the is updated loading that copies to random access memory.
Preferentially, when mobile communication terminal is in holding state, read-only memory renewal portion will think that the useful load of system is lower than certain standard.
Preferentially, read-only memory renewal portion carries out at read-only memory by the backstage.
Adopt the present invention, the period that the user asks to upgrade is not carried out the read-only memory renewal that needs the long period, but when mobile communication terminal is in holding state, carry out renewal by the backstage for read-only memory, thereby can solve according to prior art is that the user can not use the drawback of mobile communication terminal when carrying out the more new recorded data of read-only memory.
Description of drawings
Fig. 1 is a mobile communication terminal structured flowchart according to an embodiment of the invention;
Fig. 2 is the read-only memory of Fig. 1 and the key diagram of random access memory stores data;
Fig. 3 is the operational flowchart that upgrades of mobile communication terminal execute file according to an embodiment of the invention.
Wherein, Reference numeral:
100: mobile communication terminal 110: memory
111: read-only memory 112: random access memory
120: control part 121: update request portion
122: stores processor portion 123: random access memory upgrades handling part
123a: extraction unit 123b: replication processes portion
123c: system loading portion 124: read-only memory handling part
130:RF portion 140: speech processes portion
150: loud speaker 160: loudspeaker
170: key input part 180: display part
Embodiment
Will be better understood the present invention by following with reference to the detailed description of accompanying drawing, and can more fully understand each purpose of the present invention and advantage the preferred embodiment of the invention.
Fig. 1 is a mobile communication terminal structured flowchart according to an embodiment of the invention.
As shown in Figure 1, mobile communication terminal comprises according to an embodiment of the invention: the memory 110 that comprises read-only memory 111 and random access memory 112; Control part 120 for read-only memory 111 and the renewal of random access memory 112 execute files; RF portion 130; Speech processes portion 140; Loud speaker 150; Loudspeaker 160; The key input part of forming by button 170; Display part 180.
In the present invention, it is accomplished that memory 110 can pass through nand flash memory (Flash Memory).Nand flash memory 110 comprises flash ROM 111 and static RAM 112.
As shown in Figure 2, flash ROM (FlashROM) 111 and static RAM (SRAM) 112 store various kinds of data.
Flash ROM 111 Rigens possess update agent (UA:Update Agent) data field, primary application program (Main Application) data field, importing (Boot) data field, more new data packets (Update Package) field, state byte (Status bytes) and pre-note field (RWU:Reserve Write Unit) according to memory address.
Update agent (UA) data field is preserved and is used for the update agent programming data that control part 120 execute files upgrade.
More new data packets (the UA Heapand Decompressed Update Package) field that static RAM 112 Rigens possess update agent footprint (UAfootprint) field, update agent storehouse (UA Stack) field, work random access memory block (Working RAM Bank) field, update agent heap and are disengaged compression according to memory address.The various update agent related datas that are stored in static RAM 112 are that control part 120 drives the update agent programming that is kept at read-only memory 111, the various data of using when upgrading read-only memory.
When control part 120 is controlled the molar behavior of mobile communication terminals, carry out and utilize the file of FOTA service to upgrade.
Here, file upgrades a series of actions that the various softwares refer to be stored in mobile communication terminal and to obtain implementing, programming, code etc. are updated to the redaction content.
For realizing above-mentioned purpose of the present invention, the invention provides a kind of is the control part 120 of feature with following content, and it comprises: drive the update agent programming that is kept at read-only memory 111 and the update request portion 121 that obtains carrying out; Stores processor portion 122; Random access memory upgrades handling part 123; Read-only memory upgrades handling part 124.
Update request portion 121 utilizes the file of FOTA service to upgrade according to user's request to the mobile communications network request.
For realizing above-mentioned purpose of the present invention, the menu window that update request portion 121 will be used to carry out the file renewal that utilizes the FOTA service is presented at display part 180.The user operates the order that the 170 input demand files of key input part are upgraded, and just the request message transmission that file can be upgraded is to mobile communications network.
Transmit after the file update request that 122 reception mobile communications networks reception update request portions 121 of stores processor portion carry out, be used for the more new data packets of file renewal, be stored in 111 li of read-only memorys temporarily.
The more new data packets that mobile communications network is transmitted in stores processor portion 122 is stored in to be possessed in the renewal data packet field of read-only memory 111.More new data packets is stored in 111 li of read-only memorys with compressed form by stores processor portion 122 temporarily.
Random access memory upgrades handling part 123 file that is updated is copied to random access memory 112 from the more new data packets that is stored in read-only memory 111 temporarily, and loads by the file executive system that is updated.
In order to realize above-mentioned purpose of the present invention, upgrade handling part 123 according to random access memory of the present invention and comprise extraction unit 123a, the 123b of replication processes portion and the 123c of system loading portion.
Extraction unit 123a analyzes the more new data packets that temporarily is stored in read-only memory 111, compares with the version of the file that is stored in read-only memory 111 at present, and extracts the file that is updated again.
The transaction file that extraction unit 123a extracts copies to random access memory 112 and is used in the loading of system.
After the file that extraction is upgraded again by extraction unit 123a, the file Load System of the 123b of replication processes portion in order to be updated by it, restarting systems, and the file copy that is updated that will be stored in read-only memory 111 is to 112 li of random access memory.
This be because, with the file copy that is updated that is stored in read-only memory 111 to when random access memory 112 is not Load System, directly read the file Load System from read-only memory 111, but the file copy that will be stored in read-only memory 111 is utilized the file Load System that is stored in random access memory 112 under the state of random access memory 112.
By the 123b of replication processes portion, to be stored in the file copy upgraded again in the more new data packets of read-only memory 111 when random access memory 112 is preserved, the 123c of system loading portion then utilizes and copies to the file Load System that random access memory 112 is preserved.Thus, system loads according to the file that upgrades again, and carries out reception and call function according to user's selection.
Provide according to the file system of reloading that upgrades to receive and during call function, the time that needs not is very long, and the user also can upgrade all inconvenience that the use to mobile communication terminal brings away from file.
Finish according to the file that is updated under the state of system loading, when the useful load of system was lower than certain standard, read-only memory upgraded the file that handling part 124 carries out at read-only memory according to the file that is updated and upgrades.
For this reason, read-only memory upgrades handling part 124 and judges by random access memory renewal handling part 123, random access memory 112 is updated under the file and the state according to the file Load System that is updated that is updated again the time period of upgrading read-only memory 111.
Along with random access memory 112 upgrades handling part 123 by random access memory, obtain upgrading and being reflected to system according to the file that upgrades again, do not carry out simultaneously even upgrade the read-only memory renewal of handling part 124 execution by read-only memory, can not produce any influence yet for the operation of system with the renewal of random access memory.
Therefore, carry out the renewal of random access memory, and under the state according to the file Load System that is updated, read-only memory upgrades handling part 124 and carries out the function that receives or send according to user's request.As long as mobile communication terminal is in holding state,, carry out renewal at read-only memory 111 according to the file that is updated that extracts by extraction unit 123a.
For this reason, read-only memory upgrades handling part 124 for the part that the file that is updated in the field of data storage shown in Figure 2 is suitable for, and for example imports corresponding field in data or the primary application program, carries out and upgrades.
By read-only memory 111, finish the renewal of upgrading the read-only memory 111 of handling part 124 execution by read-only memory for carrying out electric again recording operation corresponding to the part of the file that is updated.
, carry out the read-only memory that upgrades handling part 124 according to read-only memory by the backstage and more newly arrive when finishing the renewal of read-only memory, the import information of having finished to user's display notification by guide-in window.The user reads its import information, just can recognize the renewal of having finished read-only memory.
As mentioned above, when the user does not also recognize, carried out the renewal of read-only memory, thereby made user's imperceptible any inconvenience when using mobile communication terminal.
When RF portion 130 receives the frequency signal of the wireless channel reception of passing through frequency band by antenna (ANT), frequency band is narrowed down, after the grouped data kind, to control part 120 or 140 outputs of speech processes portion.
The data that output to control part 120 from RF portion 130 become paging signal and the signal transmission signal that receives by lteral data or paging, and the data of exporting to speech processes portion 140 become the speech data that receives when audio call is set.
And RF portion 130 is in order to send data that receive from control part 120 or the documentation speech data that receives from speech processes portion 140, adds broadband and exports by the wireless signal that antenna (ANT) converts frequency band to.
Speech processes portion 140 is made up of vocoder etc. usually, and obtains driving by the control of control part 120.The transform electric that 140 modulation of speech processes portion are imported by loudspeaker (MIC) 160 becomes after the speech data, to 150 outputs of RF portion.And the symbolism speech data that speech processes portion 140 imports RF portion 130 is demodulated to electric signal and outputs to loud speaker (SPK) 150.Loud speaker (SPK) 150 converts thereof into the sound that can listen to and exports.
Key input part 170 forms the cipher key matrix structure usually.Key input part 170 is made up of the function key of a plurality of numerical keys and the various functions of execution.The user imports by key, to the electric signal of control part 120 output key datas.
The reception of the current state of display part 180 display terminals or variation of the practice condition of programming and short message etc.Above-mentioned display unit can be made up of liquid crystal indicator display unit such as (Liquid Crystal Display:LCD).
Fig. 3 is the operational flowchart that upgrades of mobile communication terminal execute file according to an embodiment of the invention.
As shown in Figure 3, when the user utilized the file update command of FOTA service with the 170 input requests of key input part, update request portion 121 was to mobile communications network transmission demand file updated information (step S1).
Under the state by the 121 demand files renewal of update request portion, when the mobile communications network that receives update request transmits the more new data packets that is used for the file renewal, stores processor portion 122 receives it more after the new data packets, is kept at 111 li of read-only memorys (step S2) temporarily.
The extraction unit 123a that random access memory upgrades handling part 123 analyzes the more new data packets that temporarily is kept at read-only memory 111, after comparing with the version of the file that is stored in current read-only memory 111, extracts the file (step S3) that upgrades again.
When extracting the file that upgrades again by extraction unit 123a, the 123b of replication processes portion is with restarting systems (step S4).
After the restarting systems, the 123b of replication processes portion will be stored in the file copy that is updated of read-only memory 111 to 112 li of random access memory (step S5) for according to the file Load System that is updated.
Be stored in by the 123b of replication processes portion in the more new data packets of read-only memory 111, again the file of Geng Xining is replicated and when being stored in random access memory 112, the 123c of system loading portion then utilizes the file Load System (step S6) that is replicated and is stored in random access memory 112.
Read-only memory upgrades handling part 124 and judges the renewal of carrying out random access memory, finishes according to the file that is updated under the state of system loading, and whether the state of mobile communication terminal is in holding state (step S7).
Through judging, think when the state of mobile communication terminal is holding state, read-only memory upgrades handling part 124 according to the file that is updated that extracts by extraction unit 123a, upgrades (step S8) at carrying out corresponding to the part of the file that is updated in the read-only memory 111.
In addition, through judging, thinking when the state of mobile communication terminal is not holding state, is holding state with the state of regularly judging mobile communication terminal.
When finishing read-only memory and upgrading, read-only memory upgrades handling part 124 by guide-in window, the import information of having finished to user's display notification (step S9).
The effect of invention:
According to the present invention, when user's execute file upgraded, mobile communication terminal upgraded to the mobile communications network demand file, and the more new data packets of mobile communications network transmission is stored in read-only memory temporarily, and extracted the file that upgrades again from new data packets more.
And, restarting systems.In the time of restarting systems, with the file copy that is stored in read-only memory in random access memory, and during Load System, with the file copy upgraded again to random access memory, according to the file Load System that is updated.Under the state according to the file Load System that is updated, when the user does not use mobile communication terminal, carry out renewal at read-only memory.
In sum, the period that the user asks to upgrade is not carried out the read-only memory renewal that needs the long period, but when mobile communication terminal is in holding state, carry out renewal by the backstage for read-only memory, thereby can solve according to prior art is that the user can not use the drawback of mobile communication terminal when carrying out the more new recorded data of read-only memory.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; being familiar with those of ordinary skill in the art ought can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (9)
1. a file updating method that utilizes firmware to transmit the mobile communication terminal of service in the air is characterized in that, comprising:
Utilize firmware to transmit the 1st step of the file renewal of service in the air to the mobile communications network request;
Reception accept the file update request mobile communications network transmission be used for the 2nd step that file data updated bag is stored in read-only memory temporarily;
The file that is updated is copied to random access memory from the more new data packets that is stored in read-only memory temporarily, and the 3rd step of loading according to the file executive system that is updated;
Finish according to the file that is updated under the state of system loading, when the useful load of system is lower than certain standard, according to the file that is updated, the 4th step of upgrading at the read-only memory execute file.
2. the file updating method that utilizes firmware to transmit the mobile communication terminal of service in the air according to claim 1, it is characterized in that, above-mentioned the 3rd step comprises: by analyze the more new data packets that is stored in read-only memory temporarily, extract the step of the file that is updated; Restarting systems is with the file copy that is updated the extracted step to random access memory; According to the file that is updated that copies to random access memory, the step that executive system is loaded.
3. the file updating method that utilizes firmware to transmit the mobile communication terminal of service in the air according to claim 1 is characterized in that, when the state of mobile communication terminal is in holding state, the 4th step will think that the useful load of system is lower than certain standard.
4. the file updating method that utilizes firmware to transmit the mobile communication terminal of service in the air according to claim 1 is characterized in that, above-mentioned the 4th step is by the backstage, upgrades for above-mentioned read-only memory execute file.
5. realize the mobile communication terminal of file updating method according to claim 1 for one kind, it is characterized in that, comprising:
Comprise the read-only memory of preserving file and preserve the memory of the random access memory of the file that duplicates from read-only memory for executive system;
Utilize file that firmware transmits service in the air to upgrade and when receiving more new data packets to the mobile communications network request, store read-only memory into temporarily, and with the file that is updated after more new data packets copies to random access memory, load according to the file executive system that is updated, and the useful load of system is when being lower than certain standard, according to the file that is updated, at the control part of read-only memory execute file renewal.
6. mobile communication terminal according to claim 5 is characterized in that, above-mentioned control part comprises: utilize firmware to transmit the update request portion of the file renewal of service in the air to the mobile communications network request; The mobile communications network transmission of file update request is accepted in reception, is used for the stores processor portion that file data updated bag is stored in read-only memory temporarily; The file that is updated is copied to random access memory from the more new data packets that is kept at read-only memory temporarily, and the random access memory that loads according to the file executive system that is updated upgrades handling part; Finish according to the file that is updated under the state of system loading, when the useful load of system was lower than certain standard, according to the file that is updated, the read-only memory that upgrades at the read-only memory execute file upgraded handling part.
7. mobile communication terminal according to claim 6 is characterized in that, above-mentioned random access memory upgrades handling part and comprises: extract the extraction unit of the file that is updated by analyze the more new data packets that is stored in read-only memory temporarily; Restarting systems will arrive the replication processes portion of random access memory by the file copy that is updated that extraction unit is extracted; System loading portion according to the file executive system that the is updated loading that copies to random access memory.
8. mobile communication terminal according to claim 6 is characterized in that, when the state of mobile communication terminal was in holding state, above-mentioned read-only memory renewal portion thought that the useful load of said system is lower than certain standard.
9. mobile communication terminal according to claim 6 is characterized in that, above-mentioned read-only memory renewal portion upgrades for above-mentioned read-only memory execute file by the backstage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050105870 | 2005-11-07 | ||
| KR1020050105870A KR100794220B1 (en) | 2005-11-07 | 2005-11-07 | File update method of mobile communication terminal using firmwate over the air and the mobile communication terminal therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1968477A true CN1968477A (en) | 2007-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101504805A Pending CN1968477A (en) | 2005-11-07 | 2006-10-31 | File update method of mobile communication terminal using firmwate over the air and the mobile communication terminal therefor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100794220B1 (en) |
| CN (1) | CN1968477A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012152087A1 (en) * | 2011-08-04 | 2012-11-15 | 中兴通讯股份有限公司 | Firmware upgrading method, device, and system |
| US8910139B2 (en) | 2010-08-27 | 2014-12-09 | Huawei Device Co., Ltd. | Method for processing firmware based on firmware over the air technology, apparatus, and system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100782080B1 (en) * | 2006-09-07 | 2007-12-04 | 삼성전자주식회사 | Updating method for mobile communication terminal and system |
| KR100860753B1 (en) * | 2007-01-03 | 2008-09-29 | 삼성전자주식회사 | Apparatus and method for firmware upgrade |
| KR101462282B1 (en) * | 2008-08-12 | 2014-11-14 | 주식회사 엘지유플러스 | Apparatus and method of updating mobile communication terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19813264A1 (en) * | 1998-03-25 | 1999-09-30 | Hoechst Diafoil Gmbh | Polyester film with surface topography adapted to the application, process for its production and its use |
| KR20020088573A (en) * | 2001-05-18 | 2002-11-29 | 엘지전자 주식회사 | Firmware upgrade method for digital player |
| KR100471497B1 (en) * | 2001-12-27 | 2005-03-08 | 한국전자통신연구원 | Upgrade method of image file in network system |
| KR20040036771A (en) * | 2002-10-24 | 2004-05-03 | 엘지전자 주식회사 | Method for upgrade the binary data by using OTA |
-
2005
- 2005-11-07 KR KR1020050105870A patent/KR100794220B1/en not_active IP Right Cessation
-
2006
- 2006-10-31 CN CNA2006101504805A patent/CN1968477A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8910139B2 (en) | 2010-08-27 | 2014-12-09 | Huawei Device Co., Ltd. | Method for processing firmware based on firmware over the air technology, apparatus, and system |
| WO2012152087A1 (en) * | 2011-08-04 | 2012-11-15 | 中兴通讯股份有限公司 | Firmware upgrading method, device, and system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100794220B1 (en) | 2008-01-14 |
| KR20070048853A (en) | 2007-05-10 |
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