Electronic Decisions Incorporated

James E Bales

Michael J Hoskins

Billy J Hunsinger

An acoustic charge transport device comprises a substrate with a layer disposed thereon; a channel disposed within the layer for providing a propagation path for a surface acoustic wave; a contact operably connected and disposed at one end of the channel for injecting an electronic signal into the channel; a transducer disposed at the one end of the channel for generating and propagating the surface acoustic wave through the channel; a plurality of sensing electrodes operably associated with the channel and disposed along the propagation path of the surface acoustic wave for non-destructively sensing the electronic signal; and a plurality of active buffer circuits each having an input operably connected to respective sensing electrode and an output operably connected to an output circuit.

Acoustic charge transport device buffered architecture

A transversal filter comprises an acoustic charge transport device comprising an input contact for introducing a signal into a buried channel through which the signal is transported by a high frequency acoustic wave and a plurality of non-destructive sense electrodes overlying the channel for successively sampling the signal. A memory device is provided for storing a plurality of tap weight signals, with each tap weight signal for being associated with one of the electrodes. A multiplier system is operably connected with each of the electrodes and with the storage device for generating the product of the signal sampled at each electrode and the associated tap weight signal. A summer is operably associated with the multiplier for summing the products and thereby generating an output signal.

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Urbana, IL, United States of America

James E Bales