Patent Document

CROSS-REFERENCE TO RELATED APPLICATIONS  
       [0001]     This application is a divisional of U.S. patent application Ser. No. 09/785,918, filed on Feb. 17, 2001. 
     
    
     BACKGROUND  
       [0002]     This invention relates generally to establishing web sessions.  
         [0003]     A session is a data stream from a content server. Conventionally, a client, connected over a network such as the Internet, accesses web pages on a web server. The client does this by making a hypertext transfer protocol (HTTP) request to a server that responds with the requested information. As a result, a web session is established which conventionally is a private session between a single browser client user and the addressed web server.  
         [0004]     Users may need help in connection with various web sites or web pages. Generally, when the user needs help, the user may operate a soft help button and receives, in effect, pre-prepared information. Alternatively, the user may contact the web site provider, for example, over a telephone or electronic mail link. In many cases, the web site provider has a large number of web pages and may be uncertain exactly which web page the user has concerns about. In many cases, the web site provider provides assistance to the web page user without viewing the web page or without a complete understanding of the precise nature of the user&#39;s problem.  
         [0005]     The quality of the service provided and the amount of time needed to help the user may suffer because the web site provider may not have a clear understanding of the exact issue raised by the user. In some cases, the web site provider can attempt to work through the web pages starting from the home page to attempt to recreate the situation plaguing the user. However, in some cases, the user may not remember exactly how the user arrived at a given page. In other cases, it may take an extended amount of time for the web site provider to arrive at the same location in the web site currently creating the problem for the user.  
         [0006]     Thus, the private nature of a web session between a client browser and the server may create problems. One instance of these problems arise with the provision of on-line help services because the help service provider may be unable to see what the user sees.  
         [0007]     Other problems that arise from the private nature of web sessions include the inability of a plurality of users to communicate effectively while viewing a web page. Again, the private nature of the Internet access protocol generally limits the number of users that may participate in a given session.  
         [0008]     Thus, there is a need for a way to share a particular web session among users. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0009]      FIG. 1  is a schematic depiction of one embodiment of the present invention;  
         [0010]      FIG. 2  is a chart showing a process in accordance with one embodiment of the present invention;  
         [0011]      FIG. 3  is a flow chart for software on a proxy device in accordance with one embodiment of the present invention; and  
         [0012]      FIG. 4  is a screen display in accordance with one embodiment of the present invention. 
     
    
     DETAILED DESCRIPTION  
       [0013]     A network  10  for establishing a session may include a browser client  12  communicating over a network such as the Internet  14  with a web content server  22 . The communication between the client  12  and server  22  may be via a proxy  16  which during normal communications is a completely transparent communication path. In other words, prior to the occurrence of a trigger event, the proxy  16  may do nothing, in one embodiment, other than to merely transfer communications between the client  12  and the server  22 . Thus, a session may exist between the client  12  and the server  22  which is substantially unaffected by the proxy device  16 .  
         [0014]     The proxy device  16  may be a processor-based system in one embodiment of the present invention. Thus, the device  16  may include its own processor and may be coupled to a storage device  18 . The storage device  18  may be any of a variety of known storage devices such as a hard disk drive or a flash memory, as two examples. Software  20 , for controlling the operation of the proxy device  16 , may be stored in the storage device  18 . The proxy device  16  may include a proxy engine that will be described in more detail hereinafter. The proxy device  16  may be a dedicated use inbound proxy in one embodiment.  
         [0015]     The proxy device  16  may be coupled to a shadow browser  24 . The shadow browser  24  may be a client processor-based system in one embodiment.  
         [0016]     The proxy device  16  and shadow browser  24  are on the server side of the client server communication protocol with respect to the network  14 . Thus, the proxy device  16  and the shadow browser  24  may communicate through a relatively high bandwidth connection compared to the connection between the Internet  14  and the browser client  12 .  
         [0017]     Turning next to  FIG. 2 , the client  12  may access an Internet web page by requesting the web page as indicated at  1 . Thus, the client  12  requests the web page from the server  22 , for example, by making a HTTP request that travels over the Internet  14 . This request may pass unaffected through the proxy device  16  to the content web server  22 . A result is returned from the web server  22  to the browser client  12  via the same logical route. In such case, the proxy device  16  has no affect on the web session which proceeds between the client  12  and the server  22 .  
         [0018]     However when a trigger occurs, the proxy device  16  intercepts the web page in the form of a data stream and maps the client browser address to a virtual proxy address as indicated at  3 . The proxy device  16  also adds the shadow browser client address to a proxy address table for that session&#39;s address. The proxy device  16  may also forward the domain cookie information refresh instruction requests to a listener on the shadow browser client  24  as indicated at  5 .  
         [0019]     The shadow client browser  24  then sends a refresh request as indicated at  6 . As a result, the shadow client browser  24  and client  12  both display the same web page. Optionally, a chat client session may be invoked between the various session participants which include the client  12 , the server  22  and at least one shadow browser  24 .  
         [0020]     The trigger event to initiate the session sharing may be a request from the user invoked from code on the client  12 . Alternatively, the trigger may be the result of an embedded web page function. For example, referring to  FIG. 4 , a help icon  65  may be maintained on the web page  60 . When the user clicks on the help icon  65 , a code may be generated which may be intercepted by the proxy device  16  to initiate session sharing. As still another example, the session sharing may be invoked via an automated call from the web content server  22 . As one example, when the number of data entry errors detected by the server  22  exceeds a predetermined limit during a single web session, the proxy device  16  may be automatically triggered.  
         [0021]     In one embodiment a secure transaction may be implemented, for example using a modified secure socket layer (SSL). SSL may be implemented in the proxy device  16  by renegotiating sessions between the proxy device  16  and the server  22  and between the proxy device  16  and the client  12 , with the proxy device  16  translating for device  16 -client  12  and device  16 -server  22  transactions.  
         [0022]     Where the proxy device  16  and server  12  have a trusted connection, translation may not be needed in device  16 -server  22  transactions. In general the proxy device  16  needs a certificate with any server  22  it interacts with. Thus, a SSL proxy may be useful in some situations to negotiate sessions where a pre-existing relationship was not already established.  
         [0023]     Referring to  FIG. 3 , the proxy software  20  stored on the proxy device  16  storage  18  begins by detecting the occurrence of an event as indicated at diamond  26  in one embodiment of the present invention. When an event is detected, the requested web page is intercepted from the web server  22 . The client address is then mapped to the proxy device  16  as indicated in block  30 . At this point, the server  22  believes it is communicating with the client  12  but instead is actually communicating with the proxy device  16 . The proxy device  16  then communicates or establishes sessions with both the client  12  and one or more shadow browsers  24 .  
         [0024]     To implement multiple sessions, the shadow browser  24  address is added to a proxy address table as indicated in block  32 . A refresh request is then forwarded to the shadow client as indicated in block  34 . When the client  12  initiates the refresh request, the shadow browser  24  then displays the same web page displayed by the client  12 .  
         [0025]     As one example, a help session may be initiated. Help desk personnel, managing the shadow browser  24 , see the same web page as the user of the client  12 . The help desk personnel may thereby provide more effective assistance to the user. As still another application, one may invite registered shadow browser users into a shared browser session. Each member of the session may have the ability to navigate for the group among any desired web pages or by defining a view only status within the address mapping thereby enabling some active and other passive browser participants. A termination status setting may be set as well. As one example, a setting may determine whether the session is automatically terminated when the initiator leaves the session or when the last participating browser leaves the session.  
         [0026]     By putting the device  16  which initiates the session sharing on the server side of the network  10 , bandwidth may be conserved. This placement avoids encroaching on the more limited bandwidth constraints of the typical browser user when compared to remote control where client is just remoting software.  
         [0027]     Referring to  FIG. 4 , the web page  60  may include a variety of information  62  and  64  to be completed by the user. Once the shadow browser  24  is sharing the session with the client  12 , a chat session may be initiated. For example, the user may ask a question  68  and the help desk personnel manning the shadow browser  24  may provide an answer, as indicated at  70 , while viewing the same web page that the user is viewing.  
         [0028]     While the present invention has been described with respect to a limited number of embodiments, those skilled in the art will appreciate numerous modifications and variations therefrom. It is intended that the appended claims cover all such modifications and variations as fall within the true spirit and scope of this present invention.

Technology Category: h