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US5844553A Expired / Lapsed US ⏱️ 0.0 years remaining

Mechanism to control and use window events among applications in concurrent computing

Assignee: Hewlett Packard Enterprise Development LP
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Filing: 1996-03-29
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Granted: 1998-12-01
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Expires: 2016-03-29
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Abstract

Abstract A new application sharing technology that enables sharing of many single-user non-modified applications between two or more workstations. It provides concurrent sharing of existing multiple applications with no change in a distributed environment. It permits real-time sharing of distributed applications based on a fundamental window hierarchical mapping and user interactions. Control is centralized but the data and program are replicated. It is event driven with agent assistance. The new event capturing capability is automatically triggered by user interactions on entering/leaving the shared window. The event capturing capability starts when the user moves the pointer into the shared windows. The event capturing ends when the user moves the pointer out of the shared windows. The new multicasting scope is defined in a shared window hierarchy data array. This global data array is dynamically created at run time on an as-needed basis. Because this mechanism only processes user input events such as mouse, keyboard or cursor movement (commands), no output graphic data transmission across the network is required. Therefore, this approach is extremely light-weight and provides secure transmission without requiring intensive encryption. Because it is not using pseudo server interception, this approach can support DHA 3-D rendering. Also, the agent can dynamically mediate resources and normalize environment differences. This permits real-time sharing of 3-D, graphic and DHA (direct hardware access) applications. DHA permits the application to bypass the windowing server to render graphics on display. Moreover, because it is extremely light-weight, high network bandwidth is not required.

Inventors

  • 👤 Ming C. Hao
  • 👤 Alan H Karp
  • 👤 Daniel Garfinkel
  • 👤 Charles Young
  • 👤 Thomas G. Fincher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 18:20
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/44; G06F9/451

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 35 words
An inter-access event protocol (IEP) graphical user interface for a windows computing environment, comprising: means for capturing private input events; and means for multicasting the captured input events based upon a window hierarchical data array.
Claim 2
Dependent Claim 35 words
An inter-access event protocol (IEP) graphical user interface for a windows computing environment, comprising: means for capturing private input events; and means for multicasting the captured input events based upon a window hierarchical data array.
Claim 3
Dependent Claim 19 words
A graphical user interface as recited in claim 1, wherein the IEP handles motion, button and keyboard event capturing.
Claim 4
Dependent Claim 20 words
A graphical user interface as recited in claim 1, wherein the IEP provides generic window hierarchy tree creation and mapping.
Claim 5
Dependent Claim 20 words
A graphical user interface as recited in claim 1, wherein the IEP handles the processing of shared and unshared applications.
Claim 6
Independent Claim 106 words
A system for capturing window events and multicasting the window events to a plurality of application programs, said system comprising: at least one remote computer having at least a first running application program residing thereon; and a host computer, operatively connected to said remote computer, having a display screen, an inter-access event process procedure, and at least a second running application program residing thereon, said display screen captures incoming window events for said second running application program and forwards the window events to said inter-access event process procedure, and said inter-access event process procedure multicasts the window events to said first and second running application programs.
Claim 7
Independent Claim 106 words
A system for capturing window events and multicasting the window events to a plurality of application programs, said system comprising: at least one remote computer having at least a first running application program residing thereon; and a host computer, operatively connected to said remote computer, having a display screen, an inter-access event process procedure, and at least a second running application program residing thereon, said display screen captures incoming window events for said second running application program and forwards the window events to said inter-access event process procedure, and said inter-access event process procedure multicasts the window events to said first and second running application programs.
Claim 8
Dependent Claim 18 words
A system as recited in claim 5, wherein the window events captured are motion, button and keyboard events.
Claim 9
Dependent Claim 17 words
A system as recited in claim 5, wherein a subset of the captured window events are grouped.
Claim 10
Dependent Claim 17 words
A system as recited in claim 5, wherein a subset of the captured window events are ignored.
Claim 11
Dependent Claim 35 words
A system as recited in claim 5, wherein at least one of the captured window events is mapped to another event and multicast as the other event to at least one of the running applications.
Claim 12
Independent Claim 68 words
A method for multicasting window events to application windows of running window-based application programs, said method comprising: capturing an incoming window event when a pointer is in a window; selecting a plurality of the application windows which are to receive the window event; and multicasting the window event to the plurality of the application windows selected to receive the window event based on a window hierarchical data array.
Claim 13
Independent Claim 68 words
A method for multicasting window events to application windows of running window-based application programs, said method comprising: capturing an incoming window event when a pointer is in a window; selecting a plurality of the application windows which are to receive the window event; and multicasting the window event to the plurality of the application windows selected to receive the window event based on a window hierarchical data array.
Claim 14
Dependent Claim 59 words
A method as recited in claim 10, wherein the step of multicasting includes multicasting the window event to first and second windows wherein: the first window corresponds to a first window-based application program running on a first computer; and the second window corresponds to a second window-based application program running on a second computer, different from the first computer.
Claim 15
Dependent Claim 65 words
A method as recited in claim 10, wherein the step of multicasting the window event includes multicasting the window event to first and second child windows wherein: the first child window corresponds to a first window-based application program; and the second child window corresponds to a second window-based application program; and wherein the first and second window-based application programs are running on the same computer.
Claim 16
Dependent Claim 30 words
A method as recited in claim 10, wherein the step of capturing includes receiving the incoming window event based upon the pointer entering the window having the incoming window event.
Claim 17
Dependent Claim 33 words
A method as recited in claim 10, wherein the step of selecting includes selecting the plurality of the application windows which are to receive the window event based upon a mapping window hierarchy.
Claim 18
Dependent Claim 15 words
A method as recited in claim 10, wherein the mapping window hierarchy includes child windows.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-11-30 2002-06-01 2002-12-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-11-30 2006-06-01 2006-12-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-11-30 2010-06-01 2010-12-01 $7700.00 Window Closed / Lapsed

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