Intel Corporation

Wayne Richard Hlasnik

Rune A Skarbo

Puneet Kukkal

Christopher C Lawless

Brian L Kantor

Tom Scully

Activation and deactivation of a screen saver in a video conferencing system is based on detected presence of a person in the room wherein the video conferencing system is sited and the current status of a videoconferencing session. The video conferencing system processes a screen save message received from an operating system and informs the operating system not to launch the screen saver if the video conferencing system detects that there is an active video conferencing session or if a presence detection technique has detected a presence in the room or area wherein the video conferencing system is sited within a predetermined time period. When a videoconferencing call is connected or a presence is detected and the screen saver is active, the screen saver is terminated. The presence may be detected by motion, sound, or other techniques.

Method of activating and deactivating a screen saver in a video

An apparatus and method for controlling system resource access to a computer application program in an otherwise synchronous, non-preemptive operating environment. A periodic preemption mechanism (PPM) is used to provide periodic CPU access to a client application. Initially, the client application registers a callback address with the PPM. Subsequently, the PPM periodically initiates a preemptive event, upon which the PPM checks for certain critical conditions. If there are no critical conditions, then the PPM saves critical registers of the CPU, then calls the client application at its callback address. In response, the client application performs its function then returns control to the PPM. The PPM then restores the critical registers of the CPU and returns control to the application that was running when the preemptive event occurred. The PPM behaves in a manner in which the operating system is generally unaware of the preemption.

Growing community of inventors

Tigard, OR, United States of America

Wayne Richard Hlasnik