Texas Instruments Corporation

Oren Eliezer

Alexander Mostov

Carl Michael Panasik

Stephan M Bork

Yaron Kaufmann

Yasuhiro Satoh

An apparatus for and method of extending the dynamic range of a RF communications receiver. The invention provides a mechanism for controlling the gain of both the LNA and down conversion mixer in the front end portion of an RF receiver. Both the LNA and the mixer are adapted to have both low and high gain modes of operation. The control mechanism typically comprises a two bit gain control that places both the LNA and mixer in one of four operating gain mode states. The selection of the most appropriate operating gain mode state, is preferably determined in accordance with various metrics such as the received levels of the desired signal, levels of interference signals, bit error rate and receiver RSSI.

Apparatus for and method of optimizing the performance of a radio frequency receiver in the presence of interference

An adaptive data slicer which functions to adapt to changes in the properties of a signal input thereto by producing a near optimal slicing threshold in accordance with the input signal for use in a decision circuit. The slicing level is considered optimal when its use in the decision circuit minimizes the bit error probability. The data slicer utilizes two peak detectors, a maximum peak detector for detecting the highest levels of the input signal and a minimum peak detector for detecting the lowest levels of the input signal.

Adaptive data slicer

A system and method for wireless communication between two devices allows the transfer of location information through a cellular or &ldquo;BLUETOOTH&rdquo; link that can be used to provide a continuous indication of estimated distance and direction relative to the two devices in communication with one another.

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Sde-Varburg, Israel

Oren Eliezer