Motorola Corporation

Pmx, Inc.

Clayton D Huntsman

Van B Shahan

Duane W Cawthron

Paul E Harvey

James B Clack

Ashok H Someshway

A system and method of tool path processing is taught which offsets a tool path from a given geometric sequence, avoiding tool interference and accounting for coincident tool paths. It guides a numerically-controlled machine tool in the manufacturing process. In accordance with the present invention, a computer-aided-manufacturing system defines or allows definition of a pattern to be machined by a tool having an offset, analyzes the pattern for points of intersection, breaks down the pattern into contiguous segments between points of intersection, structures a list of the segments, ordered between intersection points, defines tool path chains, responsive to the list; validates the tool path chains to define valid tool paths, and, guides the movement of the tool along a valid tool path.

System and process for generating a tool path offset

A numeric data processor having an execution unit adapted to efficiently execute the complete set of floating point operations recommended by the IEEE Standard for Binary Floating-Point Arithmetic, ANSI/IEEE Std. 754-1985, in full compliance therewith. The numeric data processor is also adapted to evaluate a large set of transcendental functions, including trigonometric, logarithmic and exponential, consistent with the IEEE Standard, without requiring a 'software envelope.' In the processor, special hybrid forms of Volder's CORDIC digital approximator and Meggitt's digital approximator are implemented in a manner so as to require minimal additions or modifications to the form of the execution unit which is otherwise required just to execute the standard floating point operations.

Floating point numeric data processor

The current microinstruction of a micromachine enables a selected one of a plurality of conditions to select one of a plurality of microaddress qualifiers to be combined with a specified base microaddress to form the next microaddress for the micromachine.

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Brandon, FL, United States of America

Clayton D Huntsman