An interactive graphics system in which plotting, digitizing and other related capabilities are performed is described in which complex graphics may be generated, edited and developed at a plurality of terminals, independently, with a minimum of hardware and in which precision control of the motion of a plotting table at each location is achieved in response to simplified input commands. Additionally, a novel floating cursor is described by which an operator may control the motion of the carriag...

A central processing unit (CPU) is coupled to a random access memory (RAM) which is organized in correspondence with a cathode ray tube (CRT) type display. The to-be-displayed image is sequentially read from the RAM by a character reader. A reference clock system provides appropriate timing and synchronization signals for CRT scan and memory read out. Means are provided for altering the timing between CRT scan and memory read out in an erratic or psuedo-random manner to produce a scene-shaking e...

An electronic thermometer includes a memory system for storing the body temperature data measured by a temperature sensing element. The memory system has ten memory sections for storing the temperature data of each of last ten days. A graphic display system is associated with the memory system for displaying the temperature data stored in the memory system in a bar graph fashion, thereby indicating the temperature variation of these ten days.

A novel photosensitive film structure comprises a generally continuous minor phase material and a generally discontinuous major phase material. The minor phase includes a photosensitive compound whose solubility relative to a selected solvent changes upon exposure to electrromagnetic radiation, while the major phase is not photosensitive nor soluble in the solvent. The two phases are uniformly interdispersed throughout the film structure. Imagewise exposure to electromagnetic radiation renders t...

A machine-implemented method and computerized system for superposing one graphic pattern on another graphic pattern wherein the graphics are represented and generated electrically by rectangular arrays of digital signals corresponding to dot raster patterns to be printed or displayed. One graphic is a superior, or dominant, graphic while a second graphic is an inferior, or recessive, graphic. A computer is programmed to process the digital signals for producing dominant graphic contoured interme...

A graphic recording system wherein multiple recording elements are moved relative to a recording medium. The recording elements are selectively actuated for recording on the medium. A carriage supports the recording elements with the carriage and a recording element actuator being supported for movement relative to the recording medium and each other. During recording on the medium, the relative movement between the carriage and actuator is prevented.

A pushbutton tunable radio having an integral audio graphic equalizer is disclosed. During a tuning mode of operation for the radio actuation of any of five presettable pushbuttons results in the selection of a predetermined radio channel frequency within the AM or FM band, and a five digit display is provided indicating the selected channel frequency. During an equalizer mode of operation caused by actuation an equalizer mode selecting pushbutton, the radio remains tuned to the previously selec...

A graphic processing method in which a processing unit of a graphic input device is constituted by a computer, and a plurality of processing programs are stored beforehand in a memory of a host device. A predetermined processing program in accordance with the graphic processing to be executed in the graphic input device is transferred from the host device to a rewritable memory of the graphic input device, and graphic processing is executed by the graphic input device on the basis of the transfe...

A writing tablet is disclosed incorporating a plurality of conductors imbedded beneath the surface thereof in orthogonal relationship with respect to each other. The conductors form a grid for receiving radiated electric signals generated remote from the tablet and supplied to a pen acting as a radiating antenna. The radiated signals generate signals of varying amplitude in the respective grid conductors; the grid conductors in each of the X and Y directions are interconnected by resistors; term...

Code compression for a dot printer 1 having a printhead 3 with a vertical line of print elements 5. The coding reduces requirements for space in font memory 13 and is readily translated and acted upon. In each eight-bit byte, microprocessor 11 interprets three bits as coding mode commands and the other five bits as content information, primarily as numbers. Printer control code modes are: black in sequence, black in sequence, complete white, white in sequence, repeat column, map bytes (bit-for-b...