The University of British Columbia

Assistive Listening Device Systems, Inc.

Charles A Laszlo

Yunquan Chen

Cecil Hershler

Paul L Geyer

An electrode is used the connecting apparatuses to the skin surface of a living body. It includes a tube having an end and a plurality of hard, resilient wires extending outwardly from the end of the tube. The wires have splayed ends in a brush-tip-like arrangement having an end formed by the spaced-apart wires which is multi-pointed and abrasive.

Brush-tip electrode

An infrared signal transmitter which has a signal generator enclosed in a housing, and a transmitter head which is removably attached thereto. The transmitter head includes a plurality of infrared transmitting elements arrayed in selected patterns to provide multidirectional transmission of infrared signals to a waiting receiver. The transmitter head and housing are provided with mating plug-in connectors permitting the transmitting head to be easily changed to provide selected transmitting arrays or patterns. The transmitter has its own power supply to be self-contained and portable.

Infrared signal transmitter

A biological electrode array connects electrical apparatuses to the skin surface of a living body. The array includes an insulating mount having a central area. A case is connected to the mount and has a cavity with conductive shielding extending thereabout. A plurality of shielding electrodes extend from the insulating mount and are spaced-apart about the central area. The shielding electrodes are electrically connected to the shielding of the case. A plurality of spaced-apart brush-tip electrodes extend from the central area of the mount. Signal buffers within the cavity of the case are electrically connected to the brush-tip electrodes. Conductors extend from the cavity, each conductor being electrically connected to one of the buffers. The brush-tip electrodes have thin, but resilient wires, typically of hard stainless steel or tungsten.

Growing community of inventors

Vancouver, Canada

Charles A Laszlo