The present invention teaches a system of cooperative driving for use in traffic mitigation or towing, in which two or more non-mechanically connected vehicles are identically equipped with automatic driving controls, which cooperate with sensors and communication devices so that the vehicles are effectively driven by the driver in the leading vehicle.

An alignable electronic background grid generation system, for use with a raster-type video graphics display unit on which graphic data is displayed, includes a horizontal grid line generator and a vertical grid pattern controller. An appropriate control device supplies to these components background grid parameter data including line spacing, line intensity pattern, and line offsets. Utilizing this data, the generator produces, in synchronism with horizontal video scanning of the display unit, ...

In this graphics data handling system a CAD workstation cooperates with the host computer which stores a site list representation of a complex three dimensional structure. Backdrop viewfile representation of the structure, advantageously with hidden surfaces removed, are established in vector format by data transformation from the site list. Bit map raster views are derived from the backdrop viewfiles, and are stored in a pixel memory. Video screen images of selected views of the structure are d...

This video graphics raster display system effectively facilitates panning over an image that is arbitrarily larger than the image memory from which the display is generated. To accomplish this, the image memory is addressable "toroidally", i.e., in modulo or wraparound fashion. Thus, if a memory address boundary is reached during a raster readout, the readout continues without interruption from the opposite boundary. The image memory is slightly larger than would be required to store only the im...

A computer graphics display system including random access raster memory for storing data to be displayed, a raster memory control unit for writing data into the raster memory, a video control unit for causing such information to be displayed on a CRT display screen, a micro control unit for controlling the function and timing of the raster memory control unit and the video control unit, and a computer adapted for facilitating data exchange between the micro control unit and a host computer. The...

A computer graphics display system including random access raster memory for storing data to be displayed, a raster memory control unit for writing data into the raster memory, a video control unit for causing such information to be displayed on a CRT display screen, a micro control unit for controlling the function and timing of the raster memory control unit and the video control unit, and a computer adapter for facilitating data exchange between the micro control unit and a host computer. The...

In this computer graphics display system, individual viewports of arbitary arrangement, number and content are produced on a video screen. The graphics content, display parameters and interviewport spacing all are specified by a set of control word sequences stored in a control table. Each sequence is associated with one scan line segment of an individual viewport, and consists of one or more control words that specify (a) the graphics image memory location of the pixel data to be included in th...

There is disclosed herein a recognize only embodiment of a recognition matrix comprised of a forward matrix and a reverse matrix each having a plurality of contacts which cause convergence responses on target lines when an input signal is received by said contact. Learning is performed by changing the characteristics of the contacts to alter the convergence responses they cause in accordance with a learning rule involving the comparison of total convergence response on each target line to a conv...