Abstract: The Invention, titled the “Split Chip” by the Inventor, contemplates an RFID enabled consumer oriented tracking system which protects consumer privacy by splitting a miniaturized silicon RFID transponder circuit into a retained piece and a detached piece. The two pieces are electrically connected by a fine piece of conductive material. Each piece is dependent upon the other in order to disgorge data. The electrical connection between the two pieces can be severed by the consumer by tearing the fine piece of conductive material at a designated spot on the substrate making the Split Chip moribund. Upon a return or refund of the consumer item the original data can be recovered through a laser guidance system which connects the retained piece and its alpha numeric identifier to a back end host computer administration network.

Abstract: A high-speed, low distortion N×M crosspoint switch selectively routes input signals arriving at any of N input terminals to one or more of M output terminals. The crosspoint switch includes a switch cell array having N rows and M columns of switch cells. Each of N input lines convey the input signal arriving at a separate one of the N input signals to each switch cell of a corresponding array row. Each of M output lines convey output signals generated by cells of a corresponding array column to a separate switch output terminal. Each switch cell contains a CMOS tristate buffer and a memory cell for storing data controlling whether the tristate buffer is active or inactive. When a tristate buffer is active, it buffers an input signal appearing on one of the input lines to generate an output signal on one of the output lines. When inactive, a tristate buffer refrains from generating an output signal in response to its input signal.