A real-time running averaging device

G - Physics – 06 – F

Patent

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G06F 7/544 (2006.01) G06F 17/18 (2006.01)

Patent

CA 2124855

2124855 9311482 PCTABS00022 A real-time signal averaging circuit (120) is disclosed. The averaging circuit includes a signal input port (112) for receiving an input signal (130); the input signal representing a value xn which is to be averaged by the averaging circuit. The averaging circuit uses a register (122) for temporarily storing and updating a previous average value ap which was output from the averaging circuit. An averaging circuit is connected to the signal input port and the register. The averaging circuit provides a weighted average value an of the value xn represented by the input signal and of the previous average value ap stored in the register. The average value an is defined as the sum ((M-1)ap + xn) divided by M, where M is a predetermined positive number greater than 1. The averaging circuit provides to the register the average value an. Finally, the circuit includes an output port (114) for generating an output signal representing the average value an. The output signalling port is connected to the averaging circuit. A clock (110) generates the necessary timing signals.

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