US Patent 7648236 Multi-use eyeglasses with human I/O interface embedded

An multi-use eyeglass apparatus is disclosed. The apparatus generally comprises a frame, a display device, at least one sensor and a transceiver. The frame may have a plurality of lens openings defining an optical path. The display device may be mounted to the frame and configured to display an image to a user wearing the frame, wherein the image is located outside of the optical path. The at least one sensor is generally mounted to the frame and configured to sense a response from the user. The transceiver may be mounted to the frame and configured to (i) receive the image in a first receive message from external of the frame and (ii) transmit the response in a first transmit message to external of the frame.