Silicon Integrated Systems (SiS), founded in 1987, is a worldwide leader in the development of leading-edge core logic chipsets. Over  the last 20 years, its products have been widely used in various applications such as Desktop PCs, notebook PCs, Embedded Systems, Wireless Communications, Servers, and Digital Entertainment Devices.

Relevant links:

SiS330 DTV Platform Is Industry-leading to Achieve CI+ 1.3 Certification

SiS33  HDTV Platform Showcased at Embedded Technology 2012 Exhibition in Japan