Motorola Corporation

Motorola Solutions, Inc.

Symbol Technologies, LLC

Tom Mathew

Swee Mean Mok

Timothy J Collins

Julius S Gyorfi

Magdi A Mohamed

Di-An Hong

Weimin Xiao

Yong Liu

Benjamin J Bekritsky

Irfan Nasir

Iwona Turlik

Jon Lindsay Schindler

Thomas S Babin

Chuntao Zhang

Benjamin J Benkritsky

Weinin Xiao

Swee M Mok

A method and apparatus for determining a range within a wireless communication system is provided herein. The range information can then be used to locate a node (e.g., an asset tag). During operation, the minimum transmission power of a source transceiver (e.g., an RFID reader) that enables a tag to be detected will be used to indicate distance. Changes in transmit power will be used to indicate relative changes in distance to a particular node. The reader will be configured to always operate at a transmission power that will result in a certain percentage (e.g., 50%) detection rate for a target transceiver (e.g., an RFID asset tag). As the reader moves closer to the tag, the minimum detection power will decrease; as it moves farther from the tag, the minimum detection power will increase. This information is displayed to give a general change in range information between the RFID reader and the asset tag (e.g., increasing range or decreasing range). An individual will be able to easily locate the asset tag by using the displayed information.

Method and apparatus for determining range information of a node in a wireless system

Disclosed is a method for a scanning device to tell its user how to best orient the scanning device to scan a target location. The user approaches the target location and initiates a scan. The results of the scan are analyzed and compared to information about the target location. Based on the analysis, the user is told how to re-orient the scanning device, if that is necessary to achieve an acceptable re-scan of the target location. In a preferred embodiment, a screen on the scanning device presents a two-dimensional map based on the scan results and on the known relative locations of the target location and of nearby non-target locations. Locations on the map are highlighted to tell the user the results of the scan and to direct him to re-orient the scanning device if necessary.

Orienting a scanning device with respect to a target location

A recursive lambda rule engine () includes a first multiplier () that sequentially multiplies each of series of inputs by a nonlinearity determining parameter and supplies results to a second multiplier () that multiplies the output of the first multiplier () by a previous output of the engine (). A three input adder () sequentially sums the output of the second multiplier (), inputs from the series of inputs, and the previous output of the engine (). A shift register () is used to feedback the output of the engine () to the three input adder () and second multiplier (). A MUX () is used to route an initial value through the shift register () for the first cycle of operation.

Hardware arithmetic engine for lambda rule computations

An nonlinear digital signal processing filter () maintains a magnitude ordering for successive windows of signal samples. A set of filter density generator values [f, f, f. . . f. . . f] are used according to the ordering in a recursion relation that computes successive values of a set function over the set of filter density generator values. The recursion relation involves an adjustable nonlinearity defining parameter &#x3bb;. The values are normalized by dividing by a largest of the values, and differences between successive values are taken. An inner product between each window of signal values (used in order according to magnitude) and the adaptive differences is a filtered signal sample.

Fast Q-filter

Biometric sensors such as electromyographic sensorsA andB sense muscle flexing. The resultant signals are sensedand utilized to establisha corresponding angle of movement and to establishmagnitude of movement for an on-screen display indicator such as an on-screen cursorIn one embodiment, the electromyographic sensor signals are shifted and scaledWireless transmissions can be utilized to increase portability of the sensor interface.

Method and apparatus for biometric control of display indicator

Brain response signals of a user, such as electroencephalogram signals, and in particular visually evoked potential signals that correspond to predetermined illumination patterns, are detected and utilized to ascertain selection of specific functions and/or actions as desired by that user. Sources of illumination that exhibit such patterns are arranged to physically correspond to indicia of such functions and actions to facilitate knowing selection thereof.

Brain response monitoring apparatus and method

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Skokie, IL, United States of America

Tom Mathew