Abstract: A system for producing stereoscopic television images enables viewers to discriminate between left and right scan lines, as displayed on the television screen, by virtue of the binocular parallax of human vision. The viewer can perceive a three-dimensional image without the need to wear any sort of specially designed eye-glasses. A screen assembly which can be used with a computer monitor to provide stereoscopic views derived either from stereoscopic multimedia inputs or computer generated stereoscopic images. Because viewers of these displays perceive left-hand views on the display solely with the left eye and right-hand views solely with the right eye, the perceived result is a three-dimensional image.

Abstract: A loudspeaker characterized by a symmetrical arrangement of planar mid-range and/or low-range drivers about an essentially point source tweeter. A flexible mounting of a speaker diaphragm to a rigid support serves to reinforce the advantages achieved thereby or is utilized independently, for instance to provide an improved sub-woofer.

Abstract: In a speech prosthesis, a direct radiator speaker, a rubber membrane over a speaker for sealing against liquid and food, and an O-ring seal for a battery compartment.

Abstract: One aspect of the invention is an integrated induction speaker which produces coherent high frequency and low frequency output. In this embodiment, the high frequency unit is centered between the two split halves of the low frequency unit. Another aspect of the invention is a configuration for a midrange or bass speaker having a very uniform magnetic field and excellent linearity.