Video game system with wireless modular handheld controller

摘要

A home entertainment system for video games and other applications includes a main unit and handheld controllers. The handheld controllers illumination emitted by emitters positioned at either side of a display, and information derived from the sensed illumination is used to calculate the orientation of the controllers. The controllers can be plugged into expansion units that customize the overall control interface for particular applications including but not limited to legacy video games. Further, the controllers can be used in one-handed or two-handed modes of operation.