USING NON-LOSSLESS COMPRESSION TO SAVE POWER

Circuits, methods, and systems that reduce or eliminate the number of data transfers between a system memory and a graphics processor under certain conditions. After inactivity by a user of an electronic device is detected, the color fidelity of pixels being displayed is reduced. Color fidelity can...

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Bibliographische Detailangaben
1. Verfasser:	REED DAVID G
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Zusammenfassung:	Circuits, methods, and systems that reduce or eliminate the number of data transfers between a system memory and a graphics processor under certain conditions. After inactivity by a user of an electronic device is detected, the color fidelity of pixels being displayed is reduced. Color fidelity can be reduced by compressing pixel values, and the compression may be non-lossless, for example, pixel data bits may be truncated. The degree of compression can be progressively increased for longer durations of inactivity, and this progression may be limited by a threshold. Inactivity may be detected by a lack of input from devices such as a keyboard, pen, mouse, or other input device. Once activity is resumed, uncompressed pixel data, or pixel data that is compressed in a lossless manner, is displayed.