In an information registering and retrieving apparatus, primary information of image signals converted from an original document or documents is registered by adding secondary information to the primary information and any desired primary information is retrieved by utilizing the secondary information. The apparatus is provided with a first output reservation device for storing, in a storage device, desired secondary information designated in the entire secondary information retrieved on the bas...

A system is disclosed for subdividing parametric patches for use in a computer graphics system to develop images. The system utilizes initial data, provided as by an interactive user, to represent control points for an initial patch from which the system rapidly computes control points for subpatches using parallel processors. The disclosed system is recursive so that each level of subdivision leads to greater refinement of an initial patch. In one embodiment, the processors in the system comput...

An information display system which comprises a plurality of sets of terminal equipment, each set including a CRT for indicating a menu having a plurality of selection branches, monitoring picture tubes for displaying a motion picture, and/or a still picture, and input terminals for inputting data to start the operation of selection of a menu. The motion picture or the still picture is displayed on the monitoring picture tubes according to the selected menu for presenting desired information des...

A bit-image printer is disclosed, having a page memory, a font memory and a font library. Fonts are selected from the library for use in composing a page image in the page memory. Loading of font characters into the page memory is controlled by the position of a cursor located within page memory. The font characters include cursor parameters which control the loading of the character into page memory, based upon current cursor position, and control movement of the cursor to a new location, in pr...

In order to improve the efficiency of test and debug procedure based on delarative program understanding of a program described by a logical language, the operation which has been executed for each procedure is grasped. On the basis of information relating to the grasped operation, the operation range of each procedure is expressed clearly by making thick only sides which have actually operated among four sides of a box-shaped figure surrounding each head term and end body term of each clause in...

A custom bus for a visual signal (image) processing system which can interface with a standard high speed industrial standard computer bus and requires minimal interface circuitry. Eight lines are dedicated to eight data/address bits which are supplied to a bidirectional I/O buffer on each VSP circuit card. A separate board select signal is supplied to each circuit card to enable the I/O buffer. Six bits on six lines provided to each VSP circuit card provide a signal selecting a particular devic...

A host system executes one or more application programs which results in graphic data structures. These graphic data structures are then continuously and asynchronously traversed. Traversal requests by competing application programs are scheduled and performed so that each application views the graphics processing as its own. The traversal and ordering of traversal requests provide efficient use of resources for multiple application programs.

A word processor capable of creating a formula during a document editing process by automatically setting a range of a formula in a document being edited with an instrument of a formula process start command and allowing a switching operation between the document editing process and the formula creating process to be easily made. This allows the formula to be edited on a block basis, thereby facilitating the editing operation such as modification, addition, or deletion of the formula in accordan...

Desktop publishing system for preparing and managing documents in accordance with a model defined by graphic properties by using input document information and commands. This model is specified by a number of differently oriented sets of grid lines equidistantly oriented per set, for the positioning of said document information. On the basis of the last grid line used as reference line for graphic elements, the format data of the graphic elements positioned as well as to be positioned, and a cer...

A method of creating data entry forms provides for the display of dialogue-windows on a computer system screen operating in a multi-window graphic mode. The windows are displayed by organizing the windows into one or more pages, each of which can be materialized by one screen window. In each page, at least one active zone, page or part of a page is defined which can react to an external event such as an operator initiated input. The active zone is then associated with a set of "editor" functions...