Sixense Entertainment brings the TrueMotion™ Revolution to Video Gamers with ADI's DSP Technology

Watch a Video Demo of TrueMotion

The most striking trend in video game technology in recent years has been the emergence of motion control, a trend that is expanding the industry beyond its traditional demographics by appealing to young and old alike. The Nintendo Wii® with its revolutionary WiiMote controller catalyzed this revolution by allowing players to drive the action of game characters with natural gestures instead of by pressing buttons and pushing on joysticks. Motion control has raised the interest level in many game genres, notably sports titles such as golf, bowling and tennis, where a swing of the arm can control the club, ball or racquet. The Wii revolution was enabled by MEMs accelerometer technology and wireless personal area networking.

Sixense Entertainment of Los Gatos, CA now introduces the next breakthrough technology to gaming, TrueMotion, a whole new level of motion control. Unlike previous technologies, TrueMotion captures the controller's exact location and orientation. This provides astounding realism to games of all sorts. Sports games are far more nuanced and sophisticated in their play and shooters are accurate and responsive. Developers love TrueMotion because it delivers what gamers expect from motion control, expanding today's games with new levels of interaction and enabling whole new game concepts not previously possible. Leading game developers and publishers praise TrueMotion for its ease of integration, accuracy and intuitive game play.

A key component of TrueMotion is ADI's SHARC DSP technology. ADI's DSPs translate the raw signals from the controller to the 3D locations, orientations, velocities, and accelerations that drive the games.

From Military, Medicine and Hollywood to the Living Room
A truly seamless and immersive real-time experience depends on the accuracy, responsiveness, and dependability of the controller. Any latency or interference is felt as on-screen lag or stutters that shatter the immersive and connected gaming experience. In gaming, that's the difference between controlling a character and actually being that character.

"Analog Devices has been a genuine partner in the development of TrueMotion. Beyond their great products and technology, such as the SHARC DSPs, ADI's engineers and executives have been instrumental in all aspects of our current success and in laying out a roadmap for the future."
– Amir Rubin,
Sixense Entertainment

TrueMotion traces its roots to military, aerospace, and surgical simulators and Hollywood performance capture for animation. It's accurate and dependable, truly an industrial-strength technology. The Sixense TrueMotion system provides absolute one-millimeter position and one-degree orientation tracking 100 times per second, with no line-of-sight considerations. It's wireless and requires no calibration.

The hardware consists of a small base station that generates a magnetic field one fiftieth the strength of the Earth's magnetic field. As the controller moves through this field, it computes its position and orientation relative to the base station and relays the data to the game console or PC. This computation is a complex function of distance from the base station combined with the controller's orientation relative to the base station. Since the position and orientation data are reported nearly a hundred times per second with extreme accuracy, the signal processing performance (latency and accuracy) is critical to the success of the system.

SHARC Performance and ADI Signal Conditioning Power TrueMotion
A SHARC floating point DSP provides the signal processing power to perform the Fast Fourier Transforms and vector calculations that extract the six position and orientation components from the received magnetic signals. The deterministic behavior of the SHARC DMA allows data to be loaded efficiently, providing accurate real-time processing. In addition, ADI's low-noise amplifiers and ADCs provide signal conditioning and A to D conversion between the input antenna signal and the DSP. Together, these components form the signal chain for a highly-robust, inexpensive consumer electronics breakthrough with a huge market potential and ADI's DSP is the key technological enabler.

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