Intel Corporation

Xircom Wireless, Inc.

Brian L Fox

John K Reece

Timothy L Reese

Doug D Scott

Briefly, a method and apparatus for decoding and authenticating an antenna is disclosed. The method may include detecting attachment of an antenna to a transmitter by authenticating a cipher received from the antenna. The method further includes suspending transmission if the antenna is not attached to the transmitter.

Method and apparatus of antenna detection and authentication

A system is disclosed having a remote access unit and two transceiver modes, one for implementing wireless wide area network communications and another for implementing local wireless network communications. High speed data communications with a cellular system may be maintained in the wireless wide area network mode with the advantage of a flexible and unconstrained remote access unit, which can be placed for improved wireless reception. Computers and other devices with complementary wireless personal network communications protocol units may connect to a wireless wide area network through the remote access unit.

Remote access unit for wireless wide-area data networking

The accuracy of location estimates based on time-of-arrival measurements may be improved using a variety of different approaches. In some approaches, accuracy predictions are made before a location estimate is computed, and the location estimate is only computed when a high accuracy is predicted. In other approaches, a plurality of preliminary location estimates are computed, and the accuracy of each preliminary estimate is determined. A final location estimate is then based on the preliminary location estimates with the best determined accuracy. In some approaches, the accuracy predictions and determinations are based on geometric dilution of precision (GDOP) or a known topography of a region. In another approach, a subset of time-of-arrival measurements is fed into a closed-form algorithm to produce a preliminary location estimate. This preliminary location estimate is then used to initialize an open-form location algorithm. Optionally, more than one of these approaches may be combined.

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Colorado Springs, CO, United States of America

Brian L Fox