Multi-channel KVM server system employing multiresolution decomposition

摘要

A multi-channel KVM server system for supplying video data to a plurality of clients is disclosed. The KVM server includes a plurality of video processors and a video switch for connecting each video processor to one or more video sources. Each video processor processes video data using a multiresolution decomposition method to generate a plurality of decomposition components at different resolution levels. A main processor of the KVM server transmits the decomposition components generated by various video processors to various clients based on the clients' requirements. When some clients are in a multi-source (“TV wall”) mode and some clients are in a single-source mode, the main processor uses decomposition components generated by some video processors to supply both the clients in single-source mode and as a part of the TV wall data for the clients in multi-source mode.

主权项

1. A server for supplying video signals from a plurality of video sources to a plurality of clients, comprising:
a plurality of video processing circuits; a video switch coupled to the plurality of video sources and the plurality of video processing circuits, the video switch being operable to connect each video processing circuit to one or more video sources; wherein each video processing circuit is operable to process video signals from the connected video sources using a multiresolution decomposition method to generate a plurality of decomposition components for each connected video source, including a smooth signal component and one or more detail signal components at one or more resolution levels, and a transmission circuit for selectively transmitting decomposition components generated by the video processing circuits to the clients based on requirements of the clients, wherein at least some of the time, the transmission circuit transmits decomposition components generated by two or more video processing circuits connected to two or more video sources to one of the clients for displaying images from the two or more video sources on the client simultaneously, wherein for the at least one video processing circuit, a first number of decomposition components it generates are transmitted to a first client operating in a single-source mode, a second number of decomposition components it generates are transmitted to a second client operating in a multi-source mode where images from multiple video sources are simultaneously displayed on the second client, the second number being lower than the first number.