International Business Machines Corporation

Thomas D Pahel

Bhyrav M Mutnury

Moises Cases

Pravin S Patel

Justin Potok Bandholz

Nam Huu Pham

Christopher Collier West

Erdem Matoglu

Bradley D Herman

A method of transmitting a signal on a bi-directional universal serial bus ('USB') circuit for boosting a signal on a USB bus disclosed. The circuit includes a first stage inverting buffer coupled to a second stage inverting buffer to form a non-inverting buffer circuit. A high pass filter is coupled in series with the non-inverting buffer circuit to provide AC coupling to the USB bus and to allow fast signal edges through the circuit. The booster circuit is arranged to improve signal quality over a USB bus to allow additional USB devices and longer USB busses to be utilized.

Bi-directional universal serial bus booster circuit

A bi-directional universal serial bus ('USB') circuit for boosting a signal on a USB bus disclosed. The circuit includes a first stage inverting buffer coupled to a second stage inverting buffer to form a non-inverting buffer circuit. A high pass filter is coupled in series with the non-inverting buffer circuit to provide AC coupling to the USB bus and to allow fast signal edges through the circuit. The booster circuit is arranged to improve signal quality over a USB bus to allow additional USB devices and longer USB busses to be utilized.

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Chapel Hill, NC, United States of America

Thomas D Pahel