Abstract: An optical memory for storing human readable pictorial information and machine readable digital information within the same format together with a method and apparatus for recording such information. In accordance with the invention, information is formatted as human readable imagery with the machine readable digital data being stored as picture elements of the image.In accordance with a presently most preferred embodiment, each of the many picture elements (pixels), which together comprise the image, are formulated as a plurality of spots, the modulation level of each of which are independently controllable among several levels for recording information digitally within the picture elements, while at the same time, providing the picture elements with the proper optical density values to provide a visual analog presentation of the image.

Abstract: Apparatus for killing pests with an electrified screen. The screen has conductive weft strands woven between insulative warp strands. Insulative weft strands may be disposed between adjacent conductive weft strands. Busses are disposed in the warp having an insulative base and conductive strips on opposite sides thereof. Alternate conductive weft strands contact one of the strips and the remaining conductive weft strands contact the other strip. The screen may be mounted vertically about a field to kill insects attempting to enter. Also the screen may be employed around the home to kill pests.

Abstract: A thermal barrier having a corrugated structure which eliminates convection losses and greatly reduces conduction losses. The invention relates to various methods of reducing infra-red radiation loss. The channels formed by the corrugations have a length much greater than their thickness. In one embodiment, grooves are provided in the sheet forming the corrugations. In another embodiment, an infra-red absorptive coating is applied to the sheet forming the corrugations. In the third embodiment, infra-red scattering material is disposed in the channels of the corrugated material.

Abstract: Method and apparatus for obtaining the doppler transform of a one-dimensional linear signal by re-arranging the signal into a two-dimensional raster form image pattern and then obtaining an optical linear transformation of the two-dimensional image. An optical circuit is provided for carrying out the transformation and is designed to process the signal for a large number of doppler levels in rapid succession without it being necessary to rescan the initial signal each time as in the prior art. Accordingly, a substantial reduction in processing time is achieved.The invention has been developed primarily for use in locating the position of underwater objects through the use of sonar, but has application in a variety of other data processing fields.