Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1997-12-24
2000-09-05
Bayerl, Raymond J.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
345353, G06F 314
Patent
active
06115041&
ABSTRACT:
A display screen manager and management method is disclosed, along with a storage and management system, media, computer and terminal incorporating the same. The disclosed screen manager will be capable of accessing a plurality of screen objects, each defining at least one screen displayable on a display unit of a terminal or device. Each screen object will include both data and procedures for painting the actual screen, defining the role of any softkeys, and handling user input and other messages directed to the screen object while it is being displayed to the user. The screen manager will also include a stack data structure for retaining the active screen object at the top of the stack (i.e. the screen object defining the active screen being displayed) as well as dormant (i.e. previously active and unretired) screen objects invoked as the user interacts with the terminal. Dormant screen objects will also be retained in the stack positioned in an invocation order as the user traverses the screen hierarchy. Also disclosed is a message router in communication with this stack to relay messages specifying user input (such as a key press), application originated broadcasts or system responses to message handler logic contained in the active screen object or module, which greatly simplifies the interfacing couplings required to direct messages to the active screen object.
REFERENCES:
patent: 5283864 (1994-02-01), Knowlton
patent: 5305435 (1994-04-01), Bronson
patent: 5627960 (1997-05-01), Clifford et al.
patent: 5781192 (1998-07-01), Kodimer
Chon Bae-Sik
Dang Luan
Bayerl Raymond J.
Brown David E.
Nortel Networks Corporation
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