Multi-input interface circuit and associated power saving method

Multi-input interface circuit and associated power saving method are provided. The multi-input interface circuit, applied to a playback device, switches among multiple input ports respectively coupled to multiple source device to select one for playback. Each port has a receiver which includes a fro...

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Bibliographische Detailangaben
Hauptverfasser:	FUH, JINYUAN, HUANG, PINIEH, LI, SHU-RUNG
Format:	Patent
Sprache:	chi ; 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 COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION 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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Beschreibung
Zusammenfassung:	Multi-input interface circuit and associated power saving method are provided. The multi-input interface circuit, applied to a playback device, switches among multiple input ports respectively coupled to multiple source device to select one for playback. Each port has a receiver which includes a front-end circuit receiving and processing a data stream of a source device and providing a corresponding data enable signal, and a content protection circuit performing content protection based on the data enable signal. Each receiver records an data enable information according to the data enable signal of the data stream. When one of the input ports is selected, the receiver of each of the rest input ports operates in a power-saving mode: the front-end circuit stops providing the data enable signal, while operation of the content protection circuit is maintained by a regenerated enable signal regenerated according to the data enable information.