US6446110B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for representing host datastream screen image information using markup languages
Assignee: International Business Machines Corp
•
Filing: 1999-04-05
•
Granted: 2002-09-03
•
Expires: 2019-04-05
Abstract
Abstract A method and apparatus for representing host datastream screen image information using markup languages is provided. A distributed data processing system contains a network, at least one host computer, at least one client computer, and optionally at least one server. The host computer generates a host datastream containing host screen image information and forwards the host datastream to a client. If the client is not directly connected to the host, then the host datastream may be routed to the client. The host datastream is converted to a markup language tagged datastream at some point within the network according to a Document Type Definition (DTD) authored for the purpose of representing information in host datastreams. The client receives the markup language tagged datastream containing the host screen image information derived from the host datastream and parses the markup language tagged datastream to identify the host screen image information. The host screen image information is displayed on a display device connected to the client, enabling the client to act as an emulator for the host.
Inventors
- 👤 David Bruce Lection
- 👤 Yongcheng Li
- 👤 Yih-shin Tan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:06
CPC Classifications
H; H04; H04L; H04L67/00; H04L67/01; H04L67/02; H04L69/00; H04L69/08; H04L9/00; H04L9/40
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
56 words
A method for processing a host datastream from a server to a client in a distributed data processing system, the method comprising the computer-implemented steps of: receiving, at the server, a host datastream comprising host screen image information; generating an XML datastream comprising the host screen image information; and sending the XML datastream to the client.
Claim 2
Independent Claim
56 words
A method for processing a host datastream from a server to a client in a distributed data processing system, the method comprising the computer-implemented steps of: receiving, at the server, a host datastream comprising host screen image information; generating an XML datastream comprising the host screen image information; and sending the XML datastream to the client.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein the XML datastream comprises a session element and a screen element.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein the session element comprises session subelements describing characteristics of a session between the client and a host.
Claim 5
Dependent Claim
15 words
The method of claim 3 wherein the session subelements comprise data specifying a host name.
Claim 6
Dependent Claim
15 words
The method of claim 3 wherein the session subelements comprise data specifying a session name.
Claim 7
Dependent Claim
17 words
The method of claim 3 wherein the session subelements comprise data specifying descriptive information for the session.
Claim 8
Dependent Claim
13 words
The method of claim 3 wherein the session subelements comprise a session identifier.
Claim 9
Dependent Claim
19 words
The method of claim 2 wherein the screen element comprises screen subelements describing content for a host screen image.
Claim 10
Dependent Claim
15 words
The method of claim 8 wherein the screen subelements comprise field elements specifying textual content.
Claim 11
Dependent Claim
21 words
The method of claim 8 wherein the screen subelements comprise interaction elements specifying actions directed from the client to a host.
Claim 12
Dependent Claim
16 words
The method of claim 1 wherein the host datastream is formatted for an IBM 3270 terminal.
Claim 13
Dependent Claim
16 words
The method of claim 1 wherein the host datastream is formatted for an IBM 5250 terminal.
Claim 14
Independent Claim
66 words
A method for emulating a host computer on a client in a distributed data processing system, the method comprising the computer-implemented steps of: receiving, at the client, an XML datastream comprising host screen image information derived from a host datastream; parsing the XML datastream to identify the host screen image information; and displaying the host screen image information on a display device connected to the client.
Claim 15
Independent Claim
66 words
A method for emulating a host computer on a client in a distributed data processing system, the method comprising the computer-implemented steps of: receiving, at the client, an XML datastream comprising host screen image information derived from a host datastream; parsing the XML datastream to identify the host screen image information; and displaying the host screen image information on a display device connected to the client.
Claim 16
Dependent Claim
42 words
The method of claim 13 further comprising: in response to receiving user input at the client, generating an XML datastream comprising the user input as an action element; and forwarding the XML datastream to a host computer in the data processing system.
Claim 17
Dependent Claim
17 words
The method of claim 13 wherein the XML datastream comprises a session element and a screen element.
Claim 18
Dependent Claim
14 words
The method of claim 13 wherein the client is a personal digital assistant device.
Claim 19
Dependent Claim
20 words
The method of claim 13 wherein the client forwards the host screen image information to a personal digital assistant device.
Claim 20
Independent Claim
89 words
A method for processing a host datastream between a server and a client in a distributed data processing system, the method comprising the computer-implemented steps of: receiving, at the server, a first host datastream comprising host screen image information; generating a first XML datastream comprising the host screen image information; sending the first XML datastream to the client; receiving, from the client, a second XML datastream comprising host-bound input information; generating a second host datastream comprising the host-bound input information; and forwarding the second host datastream to a host.
Claim 21
Independent Claim
89 words
A method for processing a host datastream between a server and a client in a distributed data processing system, the method comprising the computer-implemented steps of: receiving, at the server, a first host datastream comprising host screen image information; generating a first XML datastream comprising the host screen image information; sending the first XML datastream to the client; receiving, from the client, a second XML datastream comprising host-bound input information; generating a second host datastream comprising the host-bound input information; and forwarding the second host datastream to a host.
Claim 22
Dependent Claim
82 words
A distributed data processing system comprising: a network; a host computer, wherein the host computer generates a host datastream comprising host screen image information and sends the host datastream to a client; a client, wherein the client receives an XML datastream comprising the host screen image information derived from the host datastream and parses the XML datastream to identify the host screen image information; and a display device connected to the client, wherein the display device displays the host screen image information.
Claim 23
Dependent Claim
82 words
A distributed data processing system comprising: a network; a host computer, wherein the host computer generates a host datastream comprising host screen image information and sends the host datastream to a client; a client, wherein the client receives an XML datastream comprising the host screen image information derived from the host datastream and parses the XML datastream to identify the host screen image information; and a display device connected to the client, wherein the display device displays the host screen image information.
Claim 24
Dependent Claim
37 words
The distributed data processing system of claim 19 further comprising: an intermediate server, wherein the intermediate server receives the host datastream and generates the XML datastream containing the host screen image information in the received host datastream.
Claim 25
Dependent Claim
20 words
The distributed data processing system of claim 19 wherein the XML datastream comprises a session element and a screen element.
Claim 26
Dependent Claim
59 words
A data processing system for processing a host datastream from a server to a client, the data processing system comprising: receiving means for receiving, at the server, a host datastream comprising host screen image information; generating means for generating an XML datastream comprising the host screen image information; and sending means for sending the XML datastream to the client.
Claim 27
Dependent Claim
59 words
A data processing system for processing a host datastream from a server to a client, the data processing system comprising: receiving means for receiving, at the server, a host datastream comprising host screen image information; generating means for generating an XML datastream comprising the host screen image information; and sending means for sending the XML datastream to the client.
Claim 28
Dependent Claim
19 words
The data processing system of claim 22 wherein the XML datastream comprises a session element and a screen element.
Claim 29
Dependent Claim
25 words
The data processing system of claim 23 wherein the session element comprises session subelements describing characteristics of a session between the client and a host.
Claim 30
Dependent Claim
21 words
The data processing system of claim 22 wherein the screen element comprises screen subelements describing content for a host screen image.
Claim 31
Dependent Claim
75 words
A data processing system for emulating a host computer on a client in a distributed data processing system, the data processing system comprising: receiving means for receiving, at the client, an XML datastream comprising host screen image information derived from a host datastream; parsing means for parsing the XML datastream to identify the host screen image information; and displaying means for displaying the host screen image information on a display device connected to the client.
Claim 32
Dependent Claim
75 words
A data processing system for emulating a host computer on a client in a distributed data processing system, the data processing system comprising: receiving means for receiving, at the client, an XML datastream comprising host screen image information derived from a host datastream; parsing means for parsing the XML datastream to identify the host screen image information; and displaying means for displaying the host screen image information on a display device connected to the client.
Claim 33
Dependent Claim
19 words
The data processing system of claim 26 wherein the XML datastream comprises a session element and a screen element.
Claim 34
Dependent Claim
71 words
A computer program product on a computer readable medium for use in a data processing system for processing a host datastream from a server to a client, the computer program product comprising: first instructions for receiving, at the server, a host datastream comprising host screen image information; second instructions for generating an XML datastream comprising the host screen image information; and third instructions for sending the XML datastream to the client.
Claim 35
Dependent Claim
71 words
A computer program product on a computer readable medium for use in a data processing system for processing a host datastream from a server to a client, the computer program product comprising: first instructions for receiving, at the server, a host datastream comprising host screen image information; second instructions for generating an XML datastream comprising the host screen image information; and third instructions for sending the XML datastream to the client.
Claim 36
Dependent Claim
87 words
A computer program product on a computer readable medium for use in a data processing system for emulating a host computer on a client in a distributed data processing system, the computer program product comprising: first instructions for receiving, at the client, an XML datastream comprising host screen image information derived from a host datastream; second instructions for parsing the XML datastream to identify the host screen image information; and third instructions for displaying the host screen image information on a display device connected to the client.
Claim 37
Dependent Claim
87 words
A computer program product on a computer readable medium for use in a data processing system for emulating a host computer on a client in a distributed data processing system, the computer program product comprising: first instructions for receiving, at the client, an XML datastream comprising host screen image information derived from a host datastream; second instructions for parsing the XML datastream to identify the host screen image information; and third instructions for displaying the host screen image information on a display device connected to the client.
References Cited (Backward Citations)
US5903724A
Cited
US6012098A
Cited
US6154738A
Cited
US6336124B1
Cited
US6249844B1
Cited
US6209124B1
Cited
US6286033B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-09-02 | 2006-03-04 | 2006-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-02 | 2010-03-04 | 2010-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-02 | 2014-03-04 | 2014-09-03 | $7700.00 | Window Closed / Lapsed |