Method and apparatus for specifying a distance between an external state and a set of states in space
First Claim
Patent Images
1. For a multi-state space representing a region of a design layout, a method of computing an estimated distance between a first state and a set of states in the space, the method comprising:
- a) defining a polygon that encloses the set of states;
b) projecting vectors in at least two different directions from the one or more vertices of the polygon, each direction having an associated scalar constant wherein at least two of the associated scalar constants have different values; and
c) identifying the estimated distance between said first state and said set of states using the projected vectors and the associated scalar constants.
1 Assignment
0 Petitions
Accused Products
Abstract
Some embodiments provide a method of computing the estimated distance between an external state and a set of states in a multi-state space that represents a region of a design layout. The method identifies a polygon that encloses the set of states. It then identifies vectors to project from the vertices of the polygon based on a model that allows penalizes measurements in certain directions more than other directions. Based on the projected vectors, the method then identifies the estimated distance.
75 Citations
19 Claims
-
1. For a multi-state space representing a region of a design layout, a method of computing an estimated distance between a first state and a set of states in the space, the method comprising:
-
a) defining a polygon that encloses the set of states; b) projecting vectors in at least two different directions from the one or more vertices of the polygon, each direction having an associated scalar constant wherein at least two of the associated scalar constants have different values; and c) identifying the estimated distance between said first state and said set of states using the projected vectors and the associated scalar constants. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. For a multi-state space representing a region of a design layout, a method of computing an estimated distance between a first state and a set of states in the space, said method comprising:
-
a) defining a polygon that encloses the set of states; b) based on a wiring model that penalizes certain wiring directions more than other wiring directions, projecting vectors in at least two different wiring directions from the one or more vertices of said polygon, each wiring direction having an associated scalar constant wherein a first wiring direction having a higher associated scalar constant than a second wiring direction is a penalized wiring direction; and c) estimating the distance between said first state and said set of states using the projected vectors and the associated scalar constants, wherein said estimated distance accounts for penalties of certain wiring directions.
-
-
11. A computer readable medium storing a computer program for computing an estimated distance between a first state and a set of states in a multi-state space, said multi-state space representing a region of a design layout, said computer program comprising sets of instructions for:
-
a) defining a polygon that encloses said set of states; b) projecting vectors in at least two different directions from the one or more vertices of said polygon, each direction having an associated scalar constant wherein at least two of the associated scalar constants have different values; and c) estimating the distance between said first state and said set of states using the projected vectors and the associated scalar constants. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
-
Specification