An electronic map for selectively displaying routes to various locations in a building such as a shopping mall is disclosed. The map displays a floor plan indicating a plurality of stations (shops, public telephones, washrooms, etc.) and paths connecting the various stations. A particular station can be selected at a keyboard, and a path extending from the location of the map to the selected station is then visually indicated, as with a string of light emitting diodes physically located on the m...

An annular radiation receiver consisting of individual detectors, is stationary, and an X-ray source is rotated along a path surrounding the detectors. The individual detectors of the radiation receiver are combined into detector groups having an equal number of individual detectors, and the detector groups are adjustable independently of one another in such a fashion that those individual detectors which are disposed in advance of the radiography subject are respectively moved out of the X-ray ...

A computer desk may be utilized with computer keyboard terminal equipment or other devices requiring manual manipulation by a user. The desk permits the efficient support of such devices without sacrifice of the desk top working surface available to the user. The computer desk provides a support surface immediately below the work surface on the desk top. This support surface extends toward the desk-user a greater distance than does the desk top work surface. Thus, there is no interference betwee...

An arrangement of lines of perforation on computer paper is disclosed. Horizontal lines of fine perforations are placed at intervals of 2.75 inches throughout the entire length of a single length of computer paper, and three vertical lines of fine perforations run the entire length of the paper, one each at a one-half inch distance from each edge of the paper, and the third line at 9.00 inches from the left edge of the paper. By virtue of such arrangement, a single length of computer paper can p...

A special purpose analog computer designed for optimization of the ingredient levels of a chemical compound. The physical characteristics of a particular rubber blend may be closely approximated by a general empirical or mathematical model equation expressed in first and second order terms of the ingredients. By analysis of raw experimental data relating to the physical characteristics of interest, a different set of influence coefficients for the general equation terms may be determined for eac...

A system of measurement known as dimensional synthesis to give quantitative measure to multidimensional subjective concepts.

A portable computer comprising a planar base member having a circular, logarithmically spaced scale thereon indicative of a first value and having an opening disposed therethrough, a circular disc rotatably mounted in superimposed relation on the base member and having a logarithmically spaced scale disposed on a front face thereof which is indicative of a second value. The circular disc also has a logarithmically spaced scale on the back face thereof in alignment with the opening through the ba...

This system provides means for computing the forces and moments on and developed by the rotary wing of rotary-wing aircraft for realtime simulation purposes. The system includes a plurality of control signal generators for generating information relating to various components of rotary-wing aircraft and means to compute from these resultant signals quantities representative of the final resultant forces on the aircraft, its rotary wing, and other components. In particular, this specification des...

Computer device of the immediate interpretation and evaluation type, characterized by the fact that it is combined with a memory that can be used in accordance with the principles of symmetrical linking of different elements of one or several pieces of information and enabling complex expressions written in accordance with specific rules without the aid of preparation, translation or coordination programs of any kind, to be evaluated rapidly. The invention is applicable to automatic data process...

A computer containing stored programs and stored information is programmed by selecting a series of partial commands finally assembled into a complete command. Instead of selecting commands from a great plurality of commands, one from each of a relatively few possible partial commands is selected in sequence to form the complete command. Frames carrying a sequence of these few commands are projected on a touch sensitive selection screen and selection is performed by the operator simply by touchi...