Position location system using multiple position location techniques

Abstract

A position location system includes a first position location sub-system, a second position location sub-system, and processing circuitry. The first position location sub-system determines first position location information regarding a first object using a first position location technique. The second position location sub-system determines second position location information regarding a second object, the second position location sub-system using a second position location technique that differs from the first position location technique. The processing circuitry processes the first position location information to determine a position of the first object within a coordinate system and processes the second position location information to determine a position of the second object within the coordinate system.

Description

[0001]This patent application claims priority under 35 USC §119 to a provisionally filed patent application entitled POSITION AND MOTION TRACKING OF AN OBJECT, having a provisional filing date of Jun. 22, 2007, and a provisional serial number of 60 / 936,724 (BP6471).CROSS REFERENCE TO RELATED PATENTS[0002]Not applicable[0003]The following U.S. Utility Applications are related to the present application and are incorporated herein by reference in their entirety:[0004]1. The U.S. Utility application Ser. No. 12 / 128,797, filed May 29, 2008, entitled LOCAL POSITIONING SYSTEM AND VIDEO GAME APPLICATIONS THEREOF, (BP7144);[0005]2. The U.S. Utility application Ser. No. 12 / 128,810, filed May 29, 2008, entitled APPARATUS FOR POSITION DETECTION USING MULTIPLE ANTENNAS, (BP7147);[0006]3. The U.S. Utility application Ser. No. 12 / 128,785, filed May 29, 2008, entitled APPARATUS FOR POSITION DETECTION USING MULTIPLE HCF TRANSMISSIONS, (BP7143);[0007]4. The U.S. Utility application Ser. No. 12 / 135,3...

AI Technical Summary

Problems solved by technology

While the ISM frequency spectrum is unlicensed there are restrictions on power, modulation techniques, and antenna gain.

If the game controller is too far away, too close, or angled away from the IR sensor, the IR communication will fail.

While the above technologies allow video gaming to include motion sensing, it does so with limitations.

Further, the accelerometer only measures acceleration such that true one-to-one detection of motion is not achieved.

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