Gyroscopes are replacing accelerometers for user interface applications because companies like Invensense are lowering their price. Look for MEMS gyro chips in smart phones, gaming- and remote-controls starting in 2010. R.C.J.
A three-axis gyroscope chip developed by InvenSense Inc. combines separate MEMs resonators for motion tracking, offering a cheaper alternative for game controllers and remote control devices. InvenSense (Sunnyvale, Calif.) claims it three-axis gyroscope chip is the first of its kind for motion tracking in the z, y and z (pitch, roll and yaw) axes. It also claims its ITG-3200 gyro chip could replace current game controllers and 3-D remote controls. New applications based on the chip are expected to appear during the first half of 2010, the company said. Gyro applications include image stabilization for digital still cameras and camera phones, dead reckoning for navigation devices (when GPS signals are lost indoors), 3-D peripherals such as mice and TV remote controllers and gaming controllers.