Abstract: A three-dimensional large scale rectilinear array of hydrophones comprising a plurality of equally spaced, fixed position, omni-directional, electro-acoustic transducers, utilizes aperture steering circuits to create a polar coordinate map indicating the bearing and elevation of incoming sound signals. The attitude and depth of the array is controlled by an array maneuvering system to position the array for maximum signal strength and to rotate the array to a horizontal position for maneuvering in shallow water. The geometric configuration combined with digital signal processing circuits provide improved sound detection threshold over linear and single planar arrays. An acoustically transparent housing is used to enclose the array. The shape of the housing and supporting structural frame are adapted to limit self-induced background noise.

Abstract: Information is stored, using a relatively low-power light beam, by redistributing the material in a deformable film. In a disc configuration, positioning of the light beam is achieved by referencing to a previously recorded track. In a document storage and retrieval system the document is scanned with the resultant scanned signal modulating the writing light beam producing a recorded track. This track is optically read with the resultant signal applied to a printer. For optimum utilization of the area, the recording and readout take place at constant velocity.

Abstract: Salt water and other solutions are accelerated in a rotating structure and applied to a cannister containing reverse osmosis membrane material. The desalinated water is removed after passing through the large surface area concentration of membrane material in the cannister. The enriched brine is removed from the cannister at a point furthest from the axis of the rotating structure and returned to the vicinity of the axis to prevent the buildup of dense material. The membrane material is configured in the cannister so that the flow is generally radially with respect to the axis of the rotating structure.

Abstract: A color image is recorded on film at the television field rate. A portion of the film is illuminated, corresponding to a line in the color image, and decomposed into its component colors. The decomposed light from the line is imaged onto two or more line scanning photosensitive arrays which provide scanned signals. These scanned signals are decoded and used to provide the standard color television signals.

Abstract: A color image is recorded on film at the television field rate with alternate film frames representing the luminance and chrominance information. The chrominance information is encoded by filtering the color image through a striped color filter. On playback two line scanners are used to simultaneously scan the luminance and chrominance frames to provide the desired information simultaneously. A decoding signal is used to decode the encoded chrominance information and derive color-difference signals.