David F Schuman, 672142 Brummel St, Evanston, IL 60202

8566384, Oct 22, 2013

Dec 13, 2007

11/956082

David Steven Schuman - Rolling Meadows IL, US

Northrop Grumman Systems Corporation - Falls Church VA

G06F 7/52

708620, 708490, 708625

Systems and methods are provided for efficiently counting detected events via a multiplicative group counter. An equivalent class polynomial congruent with a first of a plurality of elements comprising a multiplicative group is represented as a series of binary values. The represented polynomial is subjected to a state transition function as each event is detected, such that the series of binary values is altered to represent a new equivalent class polynomial congruent with a second of the plurality of elements of a multiplicative group. The series of binary values is decoded to determine a number of detected events recorded by the counter.

5638053, Jun 10, 1997

Mar 30, 1995

8/413506

David Schuman - Naperville IL

H04Q 700

34082503

A channel extender apparatus is provided for use with a radio control system for a controlled device such as a model airplane, model boat, model car or the like. The control system includes a control box housing plural standard input devices, one for each of X channels. An encoder encodes user input commands from the input devices into a standard digital signal. A trainer connector is provided for connection to a similar control box. The trainer connector is connected to the encoder for developing an instructor output to the similar control box and for receiving a trainer input from the similar control box comprising a substitute digital signal. A switch is connected to the encoder and the trainer connector for selecting one of the standard digital signal and the substitute digital signal. A transmitter is connected to the switch for transmitting a through the air signal based on the selected digital signal. A control system associated with the control device includes a receiver capable of receiving data for Y channels, where Y is greater than X and a plurality of servo systems connected to the receiver for controlling operation of controlled elements in the controlled device to operate the same.