CN101132571A - Method and system for displaying and operating remote computer on mobile phone - Google Patents
Method and system for displaying and operating remote computer on mobile phone Download PDFInfo
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Abstract
This invention discloses a method and a system for displaying desktop of remote computer and operating it quickly on a cell phone by Internet, in which, the method includes: a, a cell phone is connected to a remote computer by Internet, b, the remote computer gets images of a desktop region and carries out optimized compression according to the display ability of the cell phone and feeds it back to the cell phone, c, a user operates the remote computer quickly on the keyboard of the cell phone and sees the operating result. This invented system includes a service system, a terminal device of a cell phone and a terminal device of computer, and the service system provides a visitable list to the cell phone terminal device and gets the Ip address from the remote computer, the cell phone terminal device sets up connection with the computer terminal device to carry out remote desktop operation.
Description
Technical field
The present invention relates to computer and mobile communication software, be meant the method and system that on mobile phone, shows remote computer desktop and operating remote computer especially.
Background technology
In many cases, the user does not have computer at one's side, but needs to check the document in the own computer or carries out computer operation.For example, the user wants whether the computer of looking at family has finished movie download on the road of coming off duty.At this moment, if can operate by the mobile phone of carrying, it is very convenient that the user will feel.
More existing solutions can be with the remote controller of mobile phone as computer, and by function menu operational computations machine, some scheme can also show computer desktop on mobile phone screen.Yet these schemes exist some shortcomings: at first, in some versions, be in-plant radio communication between mobile phone and the computer, this Near Field Communication only is suitable for using in same room; Secondly, some schemes are by the menu operation computer, and the user is difficult for obtaining intuitively the operating result of windowization; Once more, though some scheme can show computer desktop, give the graphical interface of user operational capacity, but when the handset displays computer desktop, very inconvenience of translation, location and the handover operation of user between the different regional areas that is shown desktop (for example, from the upper left corner image switching that shows desktop to the lower right corner image that shows desktop).This shows that existing these schemes can not satisfy above-mentioned user's request.
Summary of the invention
The invention provides and a kind ofly connect, on mobile phone, show the remote computer desktop by the Internet network, and can be on mobile phone the method and system of operating remote computer easily and efficiently.
Use this method and system, the user can be by the mobile phone of carrying, be connected to the authorization computer on the remote I nternet network whenever and wherever possible, the desktop of checking remote computer intuitively shows and operating result, and the different regional area that is shown desktop of translation on mobile phone, location and switching easily and efficiently, thereby make can be on mobile phone simple, convenient and safe demonstration, the operating remote computer of user.
For reaching above-mentioned target, technical scheme of the present invention adopts following performing step:
A. the mobile phone end device starts network connecting module, by aerial less radio-frequency electromagnetic wave, by wireless packet network and Internet the Internet, be connected to the computer of telecommunication network, and the network connecting module of process computer terminal device, intercommunication both sides' terminal capabilities information and operation authorization message;
B. remote computer obtains the desktop picture order according to what mobile phone was sent, call relevant systemic-function API (the Application Programming Interface of computer operating system, API), obtain view data with a certain zone of mirror image current computer desktop, and the compression that image is optimized according to the display capabilities of mobile phone, the view data after will compressing then sends it back mobile phone and shows.At this moment, show a cursor of mouse on the mobile phone simultaneously, it is corresponding with the mouse cursor position of computer, is convenient to the user and operates;
C. the user can pass through cell phone keyboard operating remote computer easily and efficiently, and can see operating result on mobile phone screen.The different command message that remote computer is sent according to mobile phone is called the relevant systemic-function API of computer operating system, simulates corresponding calculated machine mouse, keyboard operation, and operating result is returned to mobile phone.The invention provides by the cell phone keyboard keyboard plan of operational computations machine easily and efficiently, hereinafter will be described in detail.
Among the described step a, mobile phone can be connected by service server with computer.Use for the convenience of the user, service server can be set on the Internet network: the computer terminal device is by exclusive computer name/password game server, information such as reporting ent IP address; The mobile phone end device lands by exclusive usemame/password, can check " addressable computer " tabulation of oneself, and the information such as corresponding IP address of the designated computer that provides by server is connected to remote computer.
Among the described step a, different cell phone system platforms has different network concatenation abilities.In the Java mobile phone expansion platform (as J2ME MIDP2.0) of operation system of smart phone (mainly containing Windows Mobile, Symbian and embedding Linux etc.) and highest version, has socket SocketAPI.By Socket, set up in case connect, both sides can initiatively send data, and connect and can keep.For the mobile phone that only has the J2MEMIDP1.0 expansion platform, can only utilize HttpConnectionAPI to be connected with computer Socket.At present, this connection can disconnect after a request usually.At this moment, repeatedly data interchange just need repeatedly connect, and connects and can only be initiated by the mobile phone end.
Therefore, described step a comprises the steps that specifically (more following steps if use the HttpConnection connected mode to realize, send by the POST method of HTTP, so that carry more intercommunication data, and repeatedly communication needs mobile phone repeatedly to initiate and connect):
A1. the computer terminal device is reported information such as computer network IP address, and is begun to intercept, waits for long-range connection request by exclusive computer name/password login to service server;
A2. the mobile phone end device obtains " addressable computer " tabulation of oneself by exclusive usemame/password login to service server, selects one of them computer name, obtains the information such as IP address of designated computer and initiates connection by server;
A3. computer terminal device response request and connecting, by the authentication functions API of operating system, checking cellphone subscriber's computer operation authority and identity account number;
If a4. be proved to be successful, both sides' intercommunication terminal capabilities information (as screen size separately, the number of colors that can show etc.) is for remote operation is got ready; If authentication failed, the remote operation of computer refusal.
Among the described step b, after computer obtains a certain subregion of desktop image according to mobile phone command, the compression that need be optimized according to the display capabilities of mobile phone.The image processing speed of mobile phone is slower, and display screen is less, and the number of colors that can show is less.The computer terminal device is according to the display capabilities of mobile phone, scale the images to the size of mobile phone screen earlier, the color that mobile phone can not be shown again, be converted into that mobile phone can show near color, select for use simple, quick and effective compression algorithm to compress at last again.Since most mobile phone computing abilities a little less than, compression algorithm should be comparatively simple, can make mobile phone finish decompression fast.By the compression of the above-mentioned optimization of carrying out at the handset displays ability, can largely improve the speed that redraws of image data transmission speed and mobile phone epigraph.
Therefore, described step b specifically comprises the steps:
B1. remote computer resolves that mobile phone sends obtains the desktop picture order;
B2. computer terminal device call operation system related functions API obtains the view data with a certain zone of mirror image current computer desktop, is kept among the device context DC of the Windows GDI GDI in the internal memory;
B3. the computer terminal device carries out GDI GDI operation to this device context DC, scales the images to the size of mobile phone screen;
B4. the computer terminal device number of color that can show according to mobile phone carries out the binary digit operation to the RGB color value of each pixel in the image, the color that can not show, be converted into can show near color;
B5. the computer terminal device carries out image compression according to certain compression algorithm.A kind of simple (being convenient to mobile phone decompresses), quick and effective compression algorithm are: from the top left corner pixel of image, laterally being moving direction, adopt " S " type route of " elder generation from left to right; next line from right to left; next line from left to right again ", each locations of pixels and color are scanned.In the scanning result, a plurality of adjacent same color pixels are linked to be one " line ", and many different in size, " line " that color is different formed entire image.During compressed encoding, write down the side-play amount of every " line " end points and the color of " line ", be encoded into the eight bit byte sign indicating number by the binary digit operation at last and finish compression;
B6. the view data that will optimize after the compression of computer terminal device sends it back mobile phone and shows.Because select for use algorithm simple, effective, the speed that redraws of image data transmission speed and mobile phone epigraph is all very fast.
Among the described step c, the user can be by cell phone keyboard operational version of the present invention, operating remote computer efficiently.In cell phone keyboard operational version of the present invention, referring more particularly to can be efficiently, " the well word pattern " that positions between the different regional areas that is shown computer desktop and switch.Below " well word pattern " is described in detail.
Usually, the numerical key on the mobile phone " 1 " to " 9 " is the arrangement of " well " font formula.Accordingly, the computer display screen zone is divided into 9 zones by " well " font formula.These 9 zones respectively the numerical key " 1 " on the corresponding mobile phones to " 9 ".Like this, the user can press different numerical keys and specifies and check corresponding desktop regional area.For instance, when the user need check the computer desktop upper left corner regional, press " 1 " key and just can navigate to the desktop upper left corner fast and be presented on the mobile phone; In like manner, when needs are checked zone, the computer lower right corner, press " 9 " key and just can show switching fast.
What be worth emphasizing is that " well word pattern " can be nested.That is to say, can in the zonule that " well word pattern " divided for the first time, repeatedly use " well word pattern " further to divide again.The user can just can navigate to a certain pocket of screen by few time button.For instance, if used nested " well word pattern ", the user navigates to the desktop lower left corner by " 7 " earlier, just can navigate to the zone line image in the desktop lower left corner again by " 5 ".
The part of cell phone keyboard operational version (remainder will be described hereinafter) among the above-mentioned the present invention of being.In the present invention, it is abbreviated as " well word pattern " (in keyboard plan of the present invention, being numbered k1).Use " well word pattern ", the user can avoid repeatedly by mobile phone directionkeys location desktop regional area, can on less mobile phone screen, locate and switch the zones of different that shows computer desktop efficiently, and scheme is simple, memory easily, to the user check, the operational computations machine brings convenience.
Among the described step c, the user not only can locate between different desktop areas and switches by " well word pattern ", can also carry out following prompt operation: in numerical key " 0 " will be the local desktop area of computer at center with the cursor of mouse with 100% former ratio amplification/reduction; Carrying out a computer mouse left side (right side) key by " * " (or " # ") key clicks or double click operation; Carry out the computer keyboard operation by menu option; By menu option, information such as Edit Text/image on mobile phone/multimedia also sends to computer, also can obtain information such as text/image/multimedia and show or play at mobile phone from computer window.
For aforesaid operations is provided, the operational version of cell phone keyboard also comprises among the present invention:
K2. use moving of 4 directionkeys mouse beacon cursors, long by can fast moving;
K3. press " * " key analog mouse left button and click, long by the double-click of " * " key analog mouse left button;
K4. press " # " key analog mouse right-click, long by the double-click of " # " key analog mouse right button;
K5. pressing " 0 " key can former ratio 100% amplification/reduction, is the local desktop area of computer at center with the cursor of mouse, longly can get back to the full frame desktop of computer by " 0 " key;
For the mobile phone that uses the HttpConnection connected mode, can only initiate from the mobile phone end owing to connect, computer terminal can not be initiatively sends to mobile phone with the renewal of desktop area image, so the mobile phone end needs initiatively to force obtain again computer desktop image.Under this condition, the operational version of cell phone keyboard also will comprise among the present invention:
K6. length can force to obtain again the full frame desktop of computer by " 0 " key, and upgrades the handset displays content;
K7. long numeral " 1 " to " 9 " key of pressing can force to obtain the corresponding desktop area of computer " well word pattern ", and upgrades the handset displays content.
Description of drawings
Fig. 1 is a system remote connection diagram that has service server.
Fig. 2 is a module map of carrying out mobile phone and compunication by the long-range connection of Internet.
Fig. 3 is mobile phone end device flow chart (is example with J2ME HttpConnection connected mode).
Fig. 4 is a computer terminal device flow chart.
Fig. 5 is the interface diagram of a demonstration on mobile phone of giving an example and operating remote computer.
Embodiment
The present invention is described in further detail below in conjunction with Figure of description and specific embodiment:
According to shown in Figure 1, concrete enforcement of the present invention comprises business service system 1, mobile phone end device 2 and computer terminal device 3.Link to each other in twos and intercommunication by the Internet network between the three.
The user at first will start computer terminal device 3, by exclusive computer name/password login to service server 11, and information such as reporting ent IP address, and intercept, wait for the long-range connection request of mobile phone.Service server 11 deposits information such as network ip address in Service Database 12.After this, the user can start mobile phone end device 2 whenever and wherever possible, by exclusive usemame/password login to service server 11.Service server 11 returns " addressable computer " tabulation of cellphone subscriber according to the network state of Service Database 12 medium-long range computers.The user selects a certain computer name from tabulation, service server 11 returns the information such as network ip address of designated computer according to user's selection.Mobile phone end device 2 can be by the connection of these information initiations to remote computer.In case computer terminal device 3 listens to the connection request of mobile phone, just can set up long-range connection.
In this process, use the mobile phone end device 2 of Socket API mode can keep two with service server 11 and remote computer end device 3 to be connected simultaneously.And use the mobile phone end device 2 of HttpConnection connected mode may need elder generation and service server 11 to finish intercommunication, disconnection is connected with remote computer end device 3 after connecting again.In addition, use the HttpConnection connected mode, send the data of intercommunication, and repeatedly communication needs mobile phone repeatedly to initiate and connect by the POST method of HTTP.
Showed in more detail among Fig. 2 that mobile phone end device 2 and computer terminal device 3 are by the long-range functional module that communicates that is connected of Internet.
Mobile phone end device 2 comprises long-range link block 21, order generation module 22, multimedia generation module 23, desktop picture module 24, multimedia display module 25 and data cache module 26.Wherein, desktop picture module 24 is made of desktop data decompression module 241 and desktop picture display module 242 again.Long-range link block 21 has network data and packs/encrypt and unpack/decipher function.
In case computer terminal device 3 starts, connect and intercept module 37 just at port snooping, the long-range connection request of wait of certain socket of computer.After mobile phone end device 2 operation, send corresponding connection request, computer terminal device 3 checking users' operating right finally can set up with 31 that Internet is long-range to be connected and to communicate in both sides' long-range link block 21.
Mobile phone end device 2 sends to computer terminal device 3 by order generation module 22 and multimedia generation module 23 generation cellphone subscribers' order and multi-medium data by long-range link block 21.Computer terminal responds by command processing module 32 and 33 pairs of mobile phone commands of multimedia processing module and multi-medium data, and carries out the corresponding calculated machine operation, and finally command execution results is returned to the mobile phone end by long-range connection.
If returning, order needs the desktop of computer display image, desktop picture acquisition module 342 just obtains the desktop picture data by corresponding Windows operation system function API, and in desktop picture compression module 341, the compression that desktop picture is optimized according to the display capability information of mobile phone; After mobile phone end device 2 receives the desktop picture data of these compressions, understand in desktop picture decompression module 241 and desktop picture display module 242, the desktop picture data decompression is contractd to redraw on mobile phone screen fast to be shown.
Need carry multi-medium data (text, image and audio frequency and video segment etc.) if order is returned, computer terminal device 3 obtains corresponding multi-medium data and encodes by multimedia generation module 35 and is ready for sending; Mobile phone end device 2 is set up corresponding user interfaces by multimedia display module 25 after obtaining data, and content of multimedia is shown and plays.
In whole communication process, both sides' device all can carry out buffer memory with recent data processed by data cache module 26 and 36, so that the response speed of system when accelerating data next time and using.
Fig. 3 and Fig. 4 showed respectively both sides' device connect and the telecommunication process in program flow diagram.Wherein, mobile phone end flow chart is that example is drawn with J2ME HttpConnection connected mode, and reason is that the connection procedure of HttpConnection mode is more than Socket connection procedure complexity.Connect network if use the SocketAPI mode, computer terminal just can initiatively send data, and the mobile phone end connects repeatedly, verifies that the process of inquiry can correspondingly simplify.
Mobile phone end device program circuit step is as follows:
M1. the mobile phone end device is by exclusive usemame/password login to service server, identifying user identity.
If authentication failed or user are unregistered, the user can re-register or land checking;
M2. the mobile phone end device is tabulated from " addressable computer " that service server obtains oneself, selects one of them computer name;
M3. the mobile phone end device obtains the information such as network ip address of designated computer from service server.For the mobile phone that uses the HttpConnection connected mode, can verify the network state of designated computer once more by this step;
M4. the mobile phone end device attempts connecting remote computer.If attempt failure, get back to " addressable computer " tabulation and prompting user retry;
If M5. successful connection, both sides' complete operation Authority Verification just can begin proper communication, shows and operating remote computer;
M6. the mobile phone end device can initiatively disconnect connection, also can withdraw from any time.Computer terminal restarts to intercept, waits for long-range connection request.
Computer terminal device program circuit step is as follows:
P1. the computer terminal device is by exclusive computer name/password login to service server, identity verification.
If authentication failed or unregistered can re-register or land checking;
P2. after being proved to be successful, the computer terminal device is to relevant informations such as service server reporting ent IP addresses, and beginning in a certain socket port snooping, wait for long-range connection request;
If P3. the computer terminal device detects relevant information such as network ip address and changes, can report to service server once more;
P4. in a single day the computer terminal device obtains connection request, just connects immediately and verifies cellphone subscriber's operating right.If authentication failed is just refused cellphone subscriber's operation;
P5. after being proved to be successful, both sides just can begin proper communication, and computer will be operated and return information according to the order of mobile phone;
If P6. mobile phone end device not operation for a long time, the computer terminal device can initiatively disconnect connection;
If P7. the mobile phone end device initiatively disconnects connection, the computer terminal device will restart to intercept, wait for long-range connection request;
P8. the computer terminal device also can initiatively be prepared off-line to the server report, then can withdraw from any time.
Below in conjunction with Fig. 5, illustrate that the user checks, the display interface of operational computations machine process on mobile phone.U1. behind the mobile phone login to service server, can check " addressable computer " tabulation of oneself, and can select certain computer to connect;
U2. in case after being operatively connected with the foundation of remote computer success, show full frame desktop picture and eye-catching cursor of mouse of computer on the mobile phone, the user can understand desktop by this image which window or icon, determines next step operation;
U3. the user can carry out corresponding operation efficiently according to own needs, comprising: use moving of 4 directionkeys mouse beacon cursors; " well word pattern " operation; In the former ratio amplification/reduction of numerical key " 0 " is the local desktop area of computer at center with the cursor of mouse; Carrying out a computer mouse left side (right side) key by " * " (or " # ") key clicks or double click operation; Carry out the computer keyboard operation by menu option; By menu option, information such as Edit Text/image on mobile phone/multimedia also sends to computer, also can obtain information such as text/image/multimedia and show or play at mobile phone from computer window.Wherein:
1. indication is " the 100% local sign that amplifies ";
2. indication is " cursor of mouse ";
3. pressing directionkeys can the rolling mouse cursor, long by can fast moving;
4. press numerical key " 1 " to " 9 " and can carry out " well word pattern " operation, long data cached by upgrading;
5. pressing star key " * " can click by the analog mouse left button, long by sending double-click message;
6. pressing Pound key can the analog mouse right-click, long by sending double-click message;
7. press numerical key " 0 " and can between former figure/part, switch demonstration, long by upgrading full screen display.
U4. the user uses " well word pattern " to see corresponding demonstration by numerical key " 6 ";
U5. the user uses " well word pattern " to see corresponding demonstration by numerical key " 7 ".
The above is embodiments of the invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. one kind shows on mobile phone and the method for operating remote computer, it is characterized in that, connect by the Internet network, demonstration remote computer desktop on mobile phone, and provide convenience, the cell phone keyboard scheme is come operating remote computer efficiently.This method may further comprise the steps:
A. mobile phone is connected to the computer of telecommunication network by wireless packet network and Internet the Internet;
B. remote computer calls computer operating system API, obtains the view data with a certain zone of mirror image computer desktop, and the compression that image is optimized according to the display capabilities of mobile phone, and the view data after will compressing then sends it back mobile phone and shows;
C. the user is by cell phone keyboard simulation computer mouse, keyboard operation, operating remote computer easily and efficiently, and can on mobile phone screen, see operating result.
2. method according to claim 1 is characterized in that step a specifically comprises:
A1. the computer terminal device is reported information such as computer network IP address, and is begun to intercept, waits for long-range connection request by exclusive computer name/password login to service server;
A2. the mobile phone end device obtains " addressable computer " tabulation of oneself by exclusive usemame/password login to service server, selects one of them computer name, obtains the information such as IP address of designated computer and initiates connection by server;
A3. computer terminal device response request and connecting, by the authentication functions API of operating system, checking cellphone subscriber's computer operation authority and identity account number;
If a4. be proved to be successful, both sides' intercommunication terminal capabilities information (as screen size separately, the number of colors that can show etc.) is for remote operation is got ready; If authentication failed, the remote operation of computer refusal.
3. method according to claim 1 is characterized in that step b specifically comprises:
B1. remote computer resolves that mobile phone sends obtains the desktop picture order;
B2. computer terminal device call operation system related functions API obtains the view data with a certain zone of mirror image current computer desktop, is kept among the device context DC of the Windows GDI GDI in the internal memory;
B3. the computer terminal device carries out GDI GDI operation to this device context DC, scales the images to the size of mobile phone screen;
B4. the computer terminal device number of color that can show according to mobile phone carries out the binary digit operation to the RGB color value of each pixel in the image, the color that can not show, be converted into can show near color;
B5. the computer terminal device carries out image compression according to certain compression algorithm;
B6. the view data that will optimize after the compression of computer terminal device sends it back mobile phone and shows.
4. method according to claim 1 is characterized in that, the keyboard plan of step c specifically comprises:
K1. " well word pattern " operation
K2. use moving of 4 directionkeys mouse beacon cursors, long by can fast moving;
K3. press " * " key analog mouse left button and click, long by the double-click of " * " key analog mouse left button;
K4. press " # " key analog mouse right-click, long by the double-click of " # " key analog mouse right button;
K5. pressing " 0 " key can former ratio 100% amplification/reduction, is the local desktop area of computer at center with the cursor of mouse, longly can get back to the full frame desktop of computer by " 0 " key;
K6. length can force to obtain again the full frame desktop of computer by " 0 " key, and upgrades the handset displays content;
K7. long numeral " 1 " to " 9 " key of pressing can force to obtain the corresponding desktop area of computer " well word pattern ", and upgrades the handset displays content.
5. method according to claim 1 is characterized in that, keyboard plan among the step c " well word pattern " carries out corresponding division with computer display screens according to the mobile phone key layout, and uses each zoning and each button are corresponding one by one.
6. method according to claim 1, it is characterized in that, keyboard plan among the step c " well word pattern " can be nested, promptly in the zonule that " well word pattern " divided for the first time, repeatedly use " well word pattern " further to divide again, so that can navigate to a certain more pocket of screen by few time button.
7. realize the demonstration on mobile phone of the described method of claim 1 and the system of operating remote computer for one kind, comprise business service system (1), mobile phone end device (2) and computer terminal device (3).Business service system (1) comprises service server (11), Service Database (12) and background management system (13), it is characterized in that, service server (11) is cooperated with Service Database (12), by the Internet is the information such as IP address that mobile phone end device (2) provides " addressable computer " tabulation and the selected computer of user, can obtain information such as network ip address from the remote computer end device (3) that lands simultaneously; Background management system (13) is used for the maintenance management of operation system and the value-added service resource is provided.
8. according to claim 7 on mobile phone, the demonstration and the system of operating remote computer, it is characterized in that described mobile phone end device (2) comprises long-range link block (21), order generation module (22), multimedia generation module (23), desktop picture module (24), multimedia display module (25) and data cache module (26).Wherein, desktop picture module (24) comprises desktop data decompression module (241) and desktop picture display module (242).Described long-range link block (21) has network data and packs/encrypt and unpack/decipher function in communication process.Described order generation module (22) can generate corresponding computer mouse, keyboard operation order according to mobile phone operation.Described multimedia generation module (23) and multimedia display module (25) can generate and the demonstration multi-medium data according to the multimedia type.Described desktop picture module (24) can and show the desktop picture data decompression that receives.Described data cache module (26) can be carried out buffer memory with recent data processed in communication process.
9. according to claim 7 on mobile phone, the demonstration and the system of operating remote computer, it is characterized in that described computer terminal device (3) comprises long-range link block (31), command processing module (32), multimedia processing module (33), desktop picture module (34), multimedia generation module (35), data cache module (36) and is connected intercepts module (37).Wherein, desktop picture module (34) comprises desktop data compressing module (341) and desktop picture acquisition module (342).Described long-range link block (31) has network data and packs/encrypt and unpack/decipher function in communication process.Described command processing module (32) can simulate corresponding computer mouse, keyboard operation according to mobile phone command.Multi-medium data be handled and be generated to described multimedia processing module (33) and multimedia generation module (35) can according to the multimedia type.Described desktop picture module (34) can be obtained the compression that the desktop picture data optimize again and send.Described data cache module (36) can be carried out buffer memory with recent data processed in communication process.Module (37) is intercepted in described connection can intercept the long-range connection request of wait.
10. according to claim 1 to 9 each described method or system, it is characterized in that described remote computer is a general purpose personal computer; Described mobile phone has display screen for having wireless data communication capability, has the portable terminal of dialed digit keyboard.
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