CN1344397A - System and method for sharing documents among multiple participants - Google Patents

System and method for sharing documents among multiple participants Download PDF

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Publication number
CN1344397A
CN1344397A CN99807880.8A CN99807880A CN1344397A CN 1344397 A CN1344397 A CN 1344397A CN 99807880 A CN99807880 A CN 99807880A CN 1344397 A CN1344397 A CN 1344397A
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data
participant
meeting
file
document
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保罗·文芬德·布莱克聂尔
丹尼尔·彼德·丹纳罗
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Vocaltec Communications Ltd
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Abstract

Disclosed is a system and method for sharing data files (22) among a plurality of conference participants. The system includes a plurality of conferencing stations (2, 3, 4) operably coupled to a communications network. The method includes steps which are performed before the conference is commenced and optionally during the conference. Before the conference there are steps of assigning an identifier (19, 23) and signature (20, 24) for indicating the last modification of the shared document. After establishing the conference and distributing a list of identifications among the participants, a shared document is generated which includes presentation data (21). The document is edited and distributed whereby only the modified sections of the document (15) are distributed to the participants.

Description

Be used between a plurality of participants, sharing the system and method for document
The present invention relates to (but being not limited to) a kind of system and method for between a plurality of participants, sharing document.Specifically, the present invention relates to a kind of conference system and method for operating on the conference facility of document of sharing in the session.
Many application relevant with computing machine relate to uses the shared data file.For example, in a kind of multimedia (audio frequency, data, video, animation) conference applications, the data file that comprises the lantern slide of series of displays can be sent on the computing machine of participant's use.In case through such transmission, each participant can be observed these lantern slides.In some cases, one or more participants can edit and process the data file of distributing.
In a typical online Multi-Party Conference, the chairman of meeting has prepared a shared document (meeting paper), wherein comprises several data objects (data), as the PowerPoint  lantern slide or the Word  document of Microsoft.When meeting began, chairman was connected to other participant through a data network.In case through connecting, the participant just can exchange mutually by means of this shared document.The essence of this disposal route is exactly that this shared document need send to the participant here.In the ordinary course of things, chairman will be sent to document other participant when the beginning of meeting.In practice, the transport process of file may need a few minutes.As a result, the participant is forced to finishing just of pending file transmission possibly can set about mutual interchange, and perhaps, chairman is the communication process of startup file earlier.A kind of like this example of application is the NetMeetingTM of Microsoft.
According to the practice of routine, it is not enough transmitting the shared document that wherein comprises the data object by email exchange simply to the participant in advance.If this be because data object this in meeting begin preceding passed through editor change may take place.E-mail system also is known in field of e-mail.In view of the above, need a kind of file sharing method really, this method can reduce transmit to share the time quantum that document may be wasted, but what can also guarantee that the participant watching is the same version of data object.
When the participant need edit a shared document in many ways, also may go out some accessory problems.Under the Windows of Microsoft  environment, use based on Microsoft " " (" document can be shared and edit to the object of OLE ") technology for object linking and editor.The document that the computing machine that this technology can also be used for connecting through data network is shared.
For example, in comprising several participants' a real-time conferencing, the promoter of meeting may embed data object in the appropriate carriers document, and then the carrier document is sent to the participant.Data object is edited by among the participant any one subsequently.Then, the participant distribute to other through editor's data object is updated to current version to the data object that they are watching.
Yet this technology often causes quite long Time Created when starting meeting.In addition, may need to carry out quite big quantity data transmission, that is, no matter when want the editing data object, all need between the participant, distribute lot of data in the session.In view of the above, need a kind of method of shared document really, this method can reduce the data volume that sends in Time Created, and can reduce the data traffic during the editor of sharing data objects.
According to one aspect of the present invention, provide a kind of between a plurality of participants the system and method for shared data document.Each participant has a meeting station that is used for the data file of shared meeting.Said method comprises the steps: to transmit a data file to each participant before meeting begins, comprising at least one data object; Distribute an identification code for each data object of meeting paper, be used to represent the up-to-date modification of this data object; Organize a meeting; With, distributing a form that comprises data object identification and data object, said data object identification and data object are to need to revise between each participant in the session.This method further comprises following steps: produce a shared document, said shared document comprises the data object that at least one is relevant with each participant; Edit at least one data object, be used to provide the data object of modification; With, between the participant, distribute the data object of revising, be used to upgrade this shared document relevant with each participant.
Advantage of the present invention is, can obviously reduce the preparatory time of meeting, and can provide a unique identification code and signature for each data file and data object.And then the present invention reduces the data volume that transmits between the participant, has therefore reduced the update time relevant with each shared document.
According to the first embodiment of the present invention, the transmission of data file is finished by Email or file transfer protocol (FTP).In addition, allocation step further comprises the steps: to distribute a unique identification code into each data file, and is digital signature of each data object distribution of data file.In this way, this digital signature is exactly a step relevant with the time, is used to specify the up-to-date modification of data object.
According to a first aspect of the present invention, this method further comprises the steps: to set up the link from the data object of sharing document to data file.
According to the first embodiment of the present invention, edit step further comprises the steps: from data file owner request msg file, and utilize an application program editing data object, be used to provide the data object through revising with sharing the document link, said this application program can produce this data file at claimant's meeting station.
According to second aspect of the present invention, a kind of system with a plurality of meetings station is provided, at least one communication network is coupled to according to exercisable mode in said a plurality of meetings station, is used for the data file session shared meeting between a plurality of participants.Said meeting station comprises: a route application program is used for following the prescribed course before meeting begins to the data file of each participant's transmission comprising at least one data object; A recognition application is used to each data object of meeting paper to distribute an identification code, is used to represent the up-to-date modification of data object; A conference applications program is used to organize a meeting and the distribution of control data object identification code table between the participant; A Dianbai plate is used to watch and edits shared document; An editing application program is used for the editing data file; A condensing routine is used for the modification text of compression data file; With, an assigns applications is used for distribute data file modifying text between the participant.
Preferably, the route application program is an email application, and at least one communication network is a packet switching network.In this embodiment, said meeting station further comprises a video and audio frequency apparatus, is used to finish a sound meeting that image is arranged, and comprises a display monitor, is used to watch conferencing information.
Brief description of drawings
From below in conjunction with the detailed description of accompanying drawing to the preferred embodiments of the present invention, these features of the present invention and further feature all will become apparent, in the accompanying drawing similarly label refer to similar parts, wherein:
Fig. 1 is the calcspar according to an embodiment of the conference system of the present invention's formation;
Fig. 2 A and 2B are the process flow diagrams according to an embodiment of data sharing method of the present invention;
Fig. 3 is the process flow diagram according to another embodiment of data sharing method of the present invention;
Fig. 4 is the synoptic diagram of the embedding grammar of data transmission;
Fig. 5 is a synoptic diagram of sharing an embodiment of method according to document of the present invention.
At first, wherein represent a conference system with reference to accompanying drawing 1.Conference system 1 comprises the several meetings station 2,3,4 that connects through one or more data networks 5,6 (internet 5, LAN 6, etc.).Participant's (not shown) utilizes meeting station 2,3,4 to exchange communication with other participant.
Each meeting station utilizes audio/video/data (A/V/D) equipment 8 can support audio frequency, data and image services.For example, the participant can utilize the audio frequency apparatus 9 at meeting station to talk mutually.The participant can to other the participant in accordance with regulations route transmit document, make the participant on display device monitor 10 relevant or Dianbai plate 11, watch document with meeting station 2,3,4.In a preferred embodiment, Dianbai plate 11 is used to watch, edits and produces shared document 15.
A series of application programs that are used for multiple parties's meeting are all moved at all meeting stations 2,3,4.These application programs comprise: (1) conference applications program 12, be used to provide a user interface of being convenient to organize a meeting, and make each participant can to other the participant in accordance with regulations route transmit the content information of meeting, for example document, picture, PowerPoint lantern slide, (2) conference content editor/watch application program 13, application program 13 makes the participant can process content information.For example, conference content editor/watch application program can be an edit routine based on image, the PowerPointR of Microsoft for example, and the PowerPointR of Microsoft allows the participant to utilize conference applications program 12 or the visual lantern slide of Dianbai plate 11 editors.
Each meeting station 2,3,4 further comprises a data storer 14, is used to store share document 15, data file 16 and represent data 17.Each shared document 15 all comprises an overall unique identifier (GUID) 23, signature 24 and at least one data object 18 (comprising a GUID19 and signature 20).
In order to reduce the complicacy of Fig. 1, only express a part of details at meeting station 2,3,4 among the figure.In addition, the details of expressing for the meeting station 2 of an appointment might all not show for all meeting stations 3,4.But, should be realized that in the ordinary course of things, the function that provides for each meeting station 2,3,4 is similar.
According to one embodiment of the present of invention, conference applications program 12 comprises a digital route device (not shown), and digital route device allows the participant to begin to distribute effectively with other participant of forward direction in meeting to share document 15.So digital route device can be a file transfer protocol (FTP) and a data compressor reducer, and the function of this data compressor is each data file of compression before transfer file data between the participant.
Specifically, the participant can send shared document 15 to other participant before meeting begins.Then, when meeting began, the participant received a GUID23 and electronic signature 24, as time mark, showed the current version of sharing document 15.In case the shared document 15 that the participant receives is old versions, the participant can ask the renewal of prototype version.
According to an alternative embodiment of the invention, conference applications program 12 comprises and allows the participant to distribute effectively and edit shared 15 1 mechanisms of document.Here, share document 15 and represent that with one group data 21 are relevant, a data file 22 comprises the information of expression data 21 and formation this document.For example, a document compatible with embedding (OLE) technology with the object linking of Microsoft can be determined with the data of determining whole document (data file 22), and another group data (expression data 21) by the mode of only determining for example document appearance are determined, and it are presented on the display device monitor 10.
In this embodiment, the participant can send expression data 21 or data file 22 to other participant individually.So, beginning in meeting, participant or conference applications program 12 may be selected only to send expression data 21 to other participant.In this case, only ask to edit when sharing document 15, just send data file 22 to the requestor the participant.Generally speaking, send to the participant when this technology will obviously reduce meeting and begin and share the required time quantum of document 15, this is because the expression data 21 of the document of the appointment cause more much smaller than data file 22 in the ordinary course of things.Moreover,, have only the expression data 21 of renewal need send to most of participants, because the claimant has had data file 22 in case want editing files.Therefore, this feature of the application of the invention can realize the transmission efficiency of adding.
In a preferred embodiment of the invention, meeting station 2 be one can be at the computer program of going up operation based on the personal computer (PC) of Pentium II.This personal computer PC comprises a microphone to conference applications program sound import, is used to catch video camera, sound card, video card and a communication facilities of image, for example Ethernet card or modulator-demodular unit are used for distributing between the participant and share document 15 (this communication facilities is expressed as A/V/D equipment 8).
Referring now to accompanying drawing 2A, 2B and 3 aforesaid operations is discussed in further detail.Fig. 2 A and 2B describe is the process flow diagram of the operation that can finish in the conference system 1 implemented of first embodiment according to the invention described above.Make following hypothesis in following several examples: the chairman presides over this meeting, and produces and distribute the shared document 15 that the session will use.But should be appreciated that other participant also can finish these actions.It should further be appreciated that in the ordinary course of things, any one participant can finish the convener that describes and by convener's operation in Fig. 2 A and 2B.
At first, wherein express the method that before meeting, is used for mark and distributes shared document 15 with reference to accompanying drawing 2A.Beginning, the convener starts conference applications program 12, for example, the VocalTec Communication ClientTM of VocalTecRCommunication Israel, (step 30).Subsequent, convene artificial document 15 additional data objects 18, for example the PowerPointR lantern slide (step 31) of MS shared.The convener give to share document 15 gloss (step 32).Convener's note all data object 18 (step 33) relevant with the shared document 15 that needs note.At next step, the convener preserves in memory storage (as hard disk, floppy disk or storer 14) and shares document 15 (step 34), and shares document 15 (step 35) to being sent by the convener.Received shared document 15 (step 40) by the convener, and open and share document 15 (step 41).If wished to change shared document 15 (step 36 or 42) by the convener, then to give be shared data object in the document 15 gloss (step 37 or 43) by the convener, and continue note/increase/change data object 18, when staying without any the thing that will change till (step 38).Then, by the convener this shared document is saved in (step 39 and 44) on the hard disk.
During beginning, the chairman is created in the content information that the session will use, and content information is stored in the data-carrier store 14, as hard disk drive.This content information can be made up of each text or graph text.For example, content information can be made up of following document: electrical form that Microsof Excel  produces is represented, is used to the lantern slide that use document that Microsoft Word  produces, uses Microsoft PowerPoint  to produce or other the document based on the text application program generation of OLE application program or other type by certain.Alternatively, content information can be made of audio or video file (for example, wherein comprising the audio or video amplitude limit), and these tones or video file can or be play on the miscellaneous equipment on participant's meeting station 2,3,4.
Other political parties and groups of chairman or certain can utilize Dianbai plate 11 to produce a shared document 15, and each data object is inserted in this shared document 15.Use the PowerPoint document as an example, the chairman can insert several PowerPoint lantern slides in the not same page of sharing document 15, and the link from each lantern slide of sharing document 15 to the original PowerPoint document that comprises lantern slide is provided.
Suppose that each lantern slide is made up of the data of about 50 kilobyte, then transmitting each lantern slide on the link of the wide area network of one 64 kilobits/second approximately needs 6 seconds time.So, transmit 20 lantern slides to two other participants and represent approximately 4 minutes time of needs.
According to one embodiment of the present of invention, postpone to disturb meeting in order to prevent this, certain time point before meeting begins, produce the participant of this content information will be to each other participant send relevant file.In one embodiment, this be to use Email, file transfer protocol (FTP) or by on floppy disk simply allocate file realize.Then, by take over party's participant with this file load in the conference terminal relevant with them.
In fact, this content information can be by any participant, or is revised by the new content information that is produced after this shared file is sent to the participant.In this embodiment, by using identification code (GUID) and digital signature (time mark described as follows) just can realize this situation.
Each data object 18 in sharing document 15 can and be signed with GUID19 and 20 is associated, and using this signature 20 is in order to guarantee that the participant has the data object of identical version.As shown in Figure 1, similarly GUID19 and/or sign 20 also may be associated with shared document 15.Generally speaking, a GUID19 just distributes to when it produces and shares document 15 or data object 18.In the ordinary course of things, this GUID19 is (also is like this even this shared document or data object have carried out revising) that remains unchanged in the duration of meeting at least.Under the contrast, distribute to no matter when the signature 24 of sharing document or data object revises this shared document or data object all will change.For example, (duplicate, edit, delete) all can specify a document signature 24 when revising any one data object 18, and all may revise any data object signature 20 when editing data object 18.In one embodiment, signature 20 is made up of a time mark of the up-to-date modification time of expression data object.
Referring now to accompanying drawing 2B, the chairman presides over the meeting by calling the participant mechanism that realizes the data network conferencing function of can relying, and this technology is known in the art.
For example, the conference applications program of VocalTec Communication ClientTM that is sold by the VocalTecR Communication company limited of Israel and so on can provide conferencing function on a data network, wherein utilized the virtual conference room of setting up on the public or private webserver.Instruction of the present invention can be concentrated to be formed on the conference applications program, on for example above-described application program, to improve the performance of application program.
Below, the process flow diagram of Fig. 2 B is described in further detail.Meeting is to pass through the convener sends signature 24 (step 51) startup of GUID23 and shared document to each participant (step 50).If by convener's data object new (step 52), then the convener is received a new duplicate (step 55) of data object 18 to sent a data object signature form (step 53 and step 54) by the convener to convener's data object by the convener.Check (step 56 is to step 54) for each data object.In next procedure (step 57), checked by the convener whether he has than convener's data updated object.If had than convener's data updated object by the convener, sent a data object signature form (step 58) to the convener by the convener.Finished the operation (step 58-61) of checking and upgrading signature by the convener, when not having any one data object that will revise till.(step 62) proceeded in meeting.
Add up to, in a single day meeting is held, the participant who produces content information (as sharing document) will send a form to other participant, comprising identifier (for example GUID of document and/or data object) and signature (for example time mark of document and/or data object).Each participant (for example in the conference applications program of moving on participant's the meeting station) checks then whether this participant's the document/object version of shared document is consistent with the document/object personnel on the form.If version inconsistent (for example changed object, perhaps send document then increased new object), then the participant asks a new duplicate of this object.In one embodiment, corresponding request comprises the GUID23 of the shared document 15 of expectation or object 18 and/or signs 24.Be noted that the participant has the selectively necessary specific objective of request, rather than ask whole document.And document signature 24 can be used for verifying rapidly whether all objects are current objects, perhaps is used for request and sends whole document 15.When receiving request message, participant or the conference applications program 17 under document control send the document/object of request in real time to each requesting party.
Data traffic when from the above obviously as can be seen, the present invention can obviously reduce meeting and begins.(20 lantern slides are distributed to two participants) in these cases, chairman can send 40 message block, wherein comprises the information of GUID19 and time mark signature 20.Each all comprises the data of 100 bytes to suppose these message block, so, it is evident that, the delivery time of this step is..The participant who supposes other is mounted with ready document, then can set about immediately exchanging.
Fig. 3 is a process flow diagram, describes the method that can finish in the conference system of implementing according to the second above-mentioned embodiment of the present invention.In this example, suppose that will share document distributes to each participant, share document 15 and produced, and for example it has been stored in the data storer 14.
In order to describe this embodiment, share document 15 and represent by two parts: (1) expression data 21, as lantern slide; With, (2) data file 22 comprises the lantern slide and the out of Memory that are used for composition data file 22.In the ordinary course of things, expression data 21 constitute by showing and/or printing the required minimal information group of document.The example technique of supporting expression data described herein and data file is Microsoft's " object linking and editor (OLE) " technology.In the example that provides below, suppose that sharing document 15 is that OLE is compatible.Sharing document 15 is to produce by the object that inserts expression data 21 to Dianbai plate 11.So, share document 15 and just comprise the expression data 21 that may be used for showing or printing this shared document 15 by the client.According to this embodiment of the present invention, use OLE with a kind of on-link mode (OLM), so that the participant begins to distribute this expression data in meeting.22 of data files just send to the participant when the participant wishes to edit source document.Editing operation is undertaken by the application program that at first produces this document.
Add up to the document that storage need be shared in chairman's computing machine or other participant's computing machine between a plurality of participants.The chairman produces a shared document 15 on Dianbai plate 11, the function of this Dianbai plate 11 be conference applications program 12 editor/watch instrument, call out other participant and distribute and share document 15 to other participant.Share document 15 and include only the expression data 21 that are linked to original.Each modification that the chairman carries out all is assigned to each participant, with the duplicate of the shared document watched on the Dianbai plate that is updated in them.The editing operation of expression data is carried out by the edit routine that produces these expression data.Append to the edit file of sharing document (as instruction, on paragraph indication, etc.) can utilize Dianbai plate 11 to produce by each participant.Editor's expression data need source document and produce its application program.
Provide the detailed description of Fig. 3 process flow diagram below.Produce meeting by connecting one group of participant, these participants are appointed as user A, B, C, D (step 70).This and mode discussed above are similar.
A participant, for example user A distributes to other participant's shared document 15 and sets up a link (step 71) with the session.That is, user A only utilizes the expression data of link just this document to be put into to watch/carrier of editing application program.
Then, user A sends expression data 21 (step 72) to other participant.As shown in Figure 1, a duplicate of expression data 21 can be stored in each participant's the data-carrier store 14 at meeting station 2,3,4.Then, the participant utilizes Dianbai plate 11 can watch this shared document 15 (step 73) on their meeting station.
In one embodiment, the conference applications program is inserted " stickup " the above-described function of finishing when data object enters in the shared document 15 of operation realization by intercepting and capturing user A.Conference applications program 12 compression expression data 21, and will represent in real time on network that automatically data 21 send to other participant in the meeting.Each participant can storage representation data 21 a duplicate, shown in the B3 of meeting station.
The session whenever, shown in the dotted line among Fig. 3, a participant (for example user B) can select to edit this shared document 15 (step 74).If user B can not utilize data file 22 (step 75), data file 22 also will be sent to user B from user A as requested, and be stored on the meeting station of user B (step 76).Subsequent, the file chaining that receives is arrived original expression data 21.Then, the participant just can use the corresponding compatible Edition Contains that is installed on the his or her meeting station/watch application program 13 (as PowerPoint) optionally to edit this document (step 77).
As shown in Figure 3, the different piece of final revised file can be sent to different participants.The data updated file is sent back to the original author (as user A) (step 78 and 79) of this document.Then, original author is upgraded source document and its expression data object (step 80).Remaining participant (as user B and C) then only sends the renewal text (step 81 and 82) of expression data.Conference applications program at receiving side terminal will automatically be upgraded this shared document 15 (step 83).This for example can by transmission have expression data 21 or data file 22 GUID23, follow the tracks of current that GUID23 that is showing and correspondingly upgrade Dianbai plate 11 and realize.
In practice, the data of expression data 21 may be littler 10 times than the data of the data file 22 that comprises whole embedding fileinfo.Therefore as can be seen, the system and method for implementing according to this embodiment of the present invention can be more much effective than the shared method of the document of routine.Use all above-mentioned technology can realize high-level efficiency, in addition, only use a technology wherein also can obviously raise the efficiency, for example only send the changing unit in the renewal text between the participant.And all data files and object all will be through overcompression before transmitting between the participant.Therefore, further reduced the data volume that between the participant, transmits.
Figure 4 and 5 are represented the available advantage of this embodiment of the application of the invention.Fig. 4 represents to use the data stream of sharing and editing document.Here, user A has inserted an embedded object 100, and user B edits document 101, upgrades these documents at all participants (user C102 and user D103) then, shown in line and dotted line that arrow is arranged among Fig. 4.
Fig. 5 represents a kind of implemented according to the invention link method.According to this method, user A inserts an object through a link 200, behind user B request editing files 201 this file is sent to user B, upgrades all participants then, user C203 and user D204.The data that solid line is illustrated in before any one editing operation generation transmit.Dotted line is illustrated in the data stream after user B has edited this document.Be noted that this example supposed the size of expression data be the data that embed size 1/10, and the variable quantity of the data that produce subsequently be embed data or expression data original size 1/10.
Following table 1 has been summarized the streams data under the various situations.
Table 1
Embed the total amount of data (kilobyte) of method (Fig. 4) transmission of data The total amount of data (kilobyte) that quick link method (Fig. 5) sends
Setting up data B edits B+C and edits B+C+D and edit ????300 ????330 ????360 ????390 ????30 ????142 ????254 ????366
As can be seen, method of the present invention can obviously reduce the total amount of data that sends on network, especially when the participant of the total number of members that is less than meeting expects to edit a specific document especially like this.Specifically, may reduce the data volume that sends between the meeting preparatory stage greatly.In addition, the data transmission in edit phase may be more effective.Therefore, the invention provides and prepare faster and edit session, particularly all the more so on slower data network.
Can also use data compression technique (compress technique less, for example PKZIP or ARJ) further to reduce the data volume that meeting sends as loss.For example, can packed data when the variation of the expression that sends whole object.
Though described the present invention, should be realized that the present invention can change, improves and have other application at a limited number of embodiment.

Claims (19)

1, a kind of between a plurality of participants the shared data literature method, wherein each participant has a meeting station that is used for sharing the data file of meeting, said method comprises the steps:
Before beginning, meeting transmits a data file, comprising at least one data object to each participant;
Distribute an identification code for each data object of meeting paper, be used to represent the up-to-date modification of this data object;
Organize a meeting, and distribute and to be included between each participant the data object that need revise for the identification of data object with in the session at an interior form;
Produce a shared document, said shared document comprises at least one data object at each participant place;
Edit at least one data object, be used to provide the data object of modification; With
Between the participant, distribute the data object of revising, be used to upgrade each participant's shared document.
2, the method for claim 1 is characterized in that: said transfer step comprises the steps: to transmit said data file by data transmission device.
3, the method for claim 2 is characterized in that: said data transmission device comprises a file transfer protocol (FTP).
4, the method for claim 2 is characterized in that: said data transmission device comprises Email.
5, the method for claim 1, it is characterized in that: allocation step further comprises the steps:
For each data file is distributed a unique identification code; And
For each data object in the data file distributes a digital signature.
6, the method for claim 5 is characterized in that: said digital signature is a step relevant with the time, is used to specify the up-to-date modification of data object.
7, the method for claim 1 is characterized in that:
In case meeting begins, for an identification code is specified in each modification of said data file;
Revise table for one of the request identification code; With
The modification table that distributes said identification code to said requestor.
8, the method for claim 7 is characterized in that: said allocation step further comprises the steps: to distribute a digital signature into each data object of the said data file of process modification.
9, the method for claim 1 is characterized in that: said generation step further comprises the steps: to set up the link from the data object of sharing document to data file.
10, the method for claim 1, it is characterized in that: edit step further comprises the steps:
From data file owner request msg file; With
Utilize an application program editing data object, be used to provide the data object through revising with sharing the document link, said this application program can produce this data file at claimant's meeting station.
11, the method for claim 10 is characterized in that: said data object comprises the expression data.
12, a kind of method at the shared document of session modification that comprises a plurality of participants, said shared document comprises expression data and a data file, this data file comprises and the relevant information of said expression data that this method comprises the steps:
Said data file of mark and said expression data;
Begin each participant of forward direction in meeting and transmit said expression data;
Hold a meeting, between said participant, distribute said expression data subsequently;
Produce said shared document, said shared document comprises the expression data that are linked to said data file;
Participant to the said shared document of request editor distributes said data file; Editor is in the expression data at said data file place, so that the expression data of modification to be provided;
The expression data of between a plurality of participants, distributing said modification;
Upgrade said shared document according to said edit-modify text.
13, the method for claim 12 is characterized in that: the step that links said expression data and said data file is finished by object linking and editor (OLE) technology.
14, the method for claim 13 is characterized in that: further comprise the steps:
Comparison sheet registration certificate between said participant is used to produce a file, comprising the modification text of said expression data;
Compress said file; With
Between said participant, distribute said file.
15, a kind of system with a plurality of meetings station, at least one communication network is coupled to according to exercisable mode in said a plurality of meetings station, is used for the data file session shared meeting between a plurality of participants, and wherein said meeting station comprises:
A route application program is used for following the prescribed course before meeting begins to the data file of each participant's transmission comprising at least one data object;
A recognition application is used to each data object of meeting paper to distribute an identification code, is used to represent the up-to-date modification of data object;
A conference applications program is used to organize a meeting and the distribution of control data object identification code table between the participant;
A Dianbai plate is used to watch and edits shared document;
An editing application program is used for the editing data file;
A condensing routine is used for the modification text of compression data file; With,
An assigns applications is used for distribute data file modifying text between a plurality of participants.
16, the system of claim 15 is characterized in that: the route application program is an email application.
17, the system of claim 15 is characterized in that: the route application program comprises file transfer protocol (FTP).
18, the system of claim 15 is characterized in that: at least one communication network is a packet switching network.
19, the system of claim 15 is characterized in that: at least one communication network is a LAN (Local Area Network).
CN99807880.8A 1998-06-26 1999-02-11 System and method for sharing documents among multiple participants Pending CN1344397A (en)

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CN101192943B (en) * 2006-11-28 2011-02-02 国际商业机器公司 Method and system for role-based display of document renditions for Web conferencing
CN102385453A (en) * 2010-08-30 2012-03-21 佳能株式会社 Information processing apparatus and control method thereof
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US10354420B2 (en) 2010-08-30 2019-07-16 Canon Kabushiki Kaisha Information processing apparatus and control method thereof
CN103324605A (en) * 2013-06-25 2013-09-25 北京网梯科技发展有限公司 Method, equipment and system for collaborative editing of multiple users
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WO2000000912A1 (en) 2000-01-06

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