The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 21, 2009

Filed:

Apr. 15, 2003
Applicant:

Charles J. Devane, Upton, MA (US);

Inventor:

Charles J. DeVane, Upton, MA (US);

Assignee:

The MathWorks, Inc., Natick, MA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/44 (2006.01); G06F 9/45 (2006.01);
U.S. Cl.
CPC ...
Abstract

A programming language type system includes, in a memory, a set of numeric type including integer types, fixed-point types and floating-point types, a set of type propagation rules to automatically determine result types of any combination of integer types, fixed-point types and floating-point types, constant annotations to explicitly specify a result type of a literal constant, context-sensitive constants whose type is determined from a context of a constant according to the set of type propagation rules, an assignment operator to explicitly specify a type of a value or computation, and operator annotations to explicitly specify a result type of a computation.


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